Cause pillow finds a broken install of freetype here: /usr/local/lib
(which causes the problem:
/usr/local/include/freetype2/freetype/freetype.h:51:10: fatal error:
'freetype/config/ftconfig.h' file not found)

as well as here: /usr/local/Cellar/freetype/2.10.1
- which should be OK.

Does your configuration build freetype ---something you can see in the
main config.log---
or is it configured to use one of these
(in config.log you'd see "use system package and not install SPKG freetype")

pillow does something crazy, anyway:
....
Looking for `freetype2` using pkg-config.
Appending path /usr/local/lib
Appending path /usr/local/include/freetype2
Looking for `lcms2` using pkg-config.
Looking for `libimagequant` using pkg-config.
Appending path /Applications/sage/local/lib
Appending path /Applications/sage/local/include
Appending path 
/Applications/Xcode.app/Contents/Developer/Platforms/MacOSX.platform/Developer/SDKs/MacOSX.sdk/usr/include
Appending path /opt/local/lib
Appending path /opt/local/include
Appending path /usr/local/include
Appending path /usr/local/Cellar/freetype/2.10.1/lib
Appending path /usr/local/Cellar/freetype/2.10.1/include
...


On Sun, Jun 28, 2020 at 6:14 AM Anne Schilling
<anne1.schill...@gmail.com> wrote:
>
> Hi,
>
> I am trying to build the latest stable release of sage (master branch) from 
> source on MacOS 10.15.5
> and got the following error. Any ideas?
>
> Best wishes,
>
> Anne
>
> ---
>
> Found local metadata for pillow-5.3.0.p0
> Attempting to download package Pillow-5.3.0.tar.gz from mirrors
> http://mirrors.xmission.com/sage/spkg/upstream/pillow/Pillow-5.3.0.tar.gz
> [......................................................................]
> pillow-5.3.0.p0
> ====================================================
> Setting up build directory for pillow-5.3.0.p0
> Finished extraction
> Applying patches from ../patches...
> Applying ../patches/setup.py.patch
> patching file setup.py
> ****************************************************
> Host system:
> Darwin lolita.local 19.5.0 Darwin Kernel Version 19.5.0: Tue May 26 20:41:44 
> PDT 2020; root:xnu-6153.121.2~2/RELEASE_X86_64 x86_64
> ****************************************************
> C compiler: gcc
> C compiler version:
> Configured with: --prefix=/Applications/Xcode.app/Contents/Developer/usr 
> --with-gxx-include-dir=/Applications/Xcode.app/Contents/Developer/Platforms/MacOSX.platform/Developer/SDKs/MacOSX.sdk/usr/include/c++/4.2.1
> Apple clang version 11.0.3 (clang-1103.0.32.62)
> Target: x86_64-apple-darwin19.5.0
> Thread model: posix
> InstalledDir: 
> /Applications/Xcode.app/Contents/Developer/Toolchains/XcodeDefault.xctoolchain/usr/bin
> ****************************************************
> Package 'pillow' is currently not installed
> No legacy uninstaller found for 'pillow'; nothing to do
> running build_ext
> Package libopenjp2 was not found in the pkg-config search path.
> Perhaps you should add the directory containing `libopenjp2.pc'
> to the PKG_CONFIG_PATH environment variable
> No package 'libopenjp2' found
> Package libopenjp2 was not found in the pkg-config search path.
> Perhaps you should add the directory containing `libopenjp2.pc'
> to the PKG_CONFIG_PATH environment variable
> No package 'libopenjp2' found
> Package libtiff-5 was not found in the pkg-config search path.
> Perhaps you should add the directory containing `libtiff-5.pc'
> to the PKG_CONFIG_PATH environment variable
> No package 'libtiff-5' found
> Package libtiff-5 was not found in the pkg-config search path.
> Perhaps you should add the directory containing `libtiff-5.pc'
> to the PKG_CONFIG_PATH environment variable
> No package 'libtiff-5' found
> Package lcms2 was not found in the pkg-config search path.
> Perhaps you should add the directory containing `lcms2.pc'
> to the PKG_CONFIG_PATH environment variable
> No package 'lcms2' found
> Package lcms2 was not found in the pkg-config search path.
> Perhaps you should add the directory containing `lcms2.pc'
> to the PKG_CONFIG_PATH environment variable
> No package 'lcms2' found
> Package libimagequant was not found in the pkg-config search path.
> Perhaps you should add the directory containing `libimagequant.pc'
> to the PKG_CONFIG_PATH environment variable
> No package 'libimagequant' found
> Package libimagequant was not found in the pkg-config search path.
> Perhaps you should add the directory containing `libimagequant.pc'
> to the PKG_CONFIG_PATH environment variable
> No package 'libimagequant' found
> Disabling jpeg
> Appending path 
> /Applications/sage/local/var/tmp/sage/build/pillow-5.3.0.p0/src/src/libImaging
> Looking for `libjpeg` using pkg-config.
> Appending path /usr/local/Cellar/jpeg/9d/lib
> Appending path /usr/local/Cellar/jpeg/9d/include
> Looking for `libopenjp2` using pkg-config.
> Looking for `libtiff-5` using pkg-config.
> Looking for `libtiff-4` using pkg-config.
> Appending path /usr/local/Cellar/libtiff/4.1.0/lib
> Appending path /usr/local/Cellar/libtiff/4.1.0/include
> Looking for `zlib` using pkg-config.
> Looking for `freetype2` using pkg-config.
> Appending path /usr/local/lib
> Appending path /usr/local/include/freetype2
> Looking for `lcms2` using pkg-config.
> Looking for `libimagequant` using pkg-config.
> Appending path /Applications/sage/local/lib
> Appending path /Applications/sage/local/include
> Appending path 
> /Applications/Xcode.app/Contents/Developer/Platforms/MacOSX.platform/Developer/SDKs/MacOSX.sdk/usr/include
> Appending path /opt/local/lib
> Appending path /opt/local/include
> Appending path /usr/local/include
> Appending path /usr/local/Cellar/freetype/2.10.1/lib
> Appending path /usr/local/Cellar/freetype/2.10.1/include
> Appending path /usr/lib
> Looking for zlib
> Checking for include file zlib.h in 
> /Applications/sage/local/var/tmp/sage/build/pillow-5.3.0.p0/src/src/libImaging
> Checking for include file zlib.h in /usr/local/Cellar/jpeg/9d/include
> Checking for include file zlib.h in /usr/local/Cellar/libtiff/4.1.0/include
> Checking for include file zlib.h in /usr/local/include/freetype2
> Checking for include file zlib.h in /Applications/sage/local/include
> Checking for include file zlib.h in 
> /Applications/Xcode.app/Contents/Developer/Platforms/MacOSX.platform/Developer/SDKs/MacOSX.sdk/usr/include
> Found zlib.h
> Found library z at /usr/lib/libz.dylib
> Looking for jpeg2000
> Checking for openjpeg-#.# in 
> /Applications/sage/local/var/tmp/sage/build/pillow-5.3.0.p0/src/src/libImaging
> Checking for openjpeg-#.# in /usr/local/Cellar/jpeg/9d/include
> Checking for openjpeg-#.# in /usr/local/Cellar/libtiff/4.1.0/include
> Checking for openjpeg-#.# in /usr/local/include/freetype2
> Checking for openjpeg-#.# in /Applications/sage/local/include
> Checking for openjpeg-#.# in 
> /Applications/Xcode.app/Contents/Developer/Platforms/MacOSX.platform/Developer/SDKs/MacOSX.sdk/usr/include
> Checking for openjpeg-#.# in /opt/local/include
> Checking for openjpeg-#.# in /usr/local/include
> Checking for openjpeg-#.# in /usr/local/Cellar/freetype/2.10.1/include
> Checking for openjpeg-#.# in /Applications/sage/local/include
> Checking for openjpeg-#.# in 
> /Library/Frameworks/Python.framework/Versions/3.7/include/python3.7m
> Looking for imagequant
> Checking for include file libimagequant.h in 
> /Applications/sage/local/var/tmp/sage/build/pillow-5.3.0.p0/src/src/libImaging
> Checking for include file libimagequant.h in /usr/local/Cellar/jpeg/9d/include
> Checking for include file libimagequant.h in 
> /usr/local/Cellar/libtiff/4.1.0/include
> Checking for include file libimagequant.h in /usr/local/include/freetype2
> Checking for include file libimagequant.h in /Applications/sage/local/include
> Checking for include file libimagequant.h in 
> /Applications/Xcode.app/Contents/Developer/Platforms/MacOSX.platform/Developer/SDKs/MacOSX.sdk/usr/include
> Checking for include file libimagequant.h in /opt/local/include
> Checking for include file libimagequant.h in /usr/local/include
> Checking for include file libimagequant.h in 
> /usr/local/Cellar/freetype/2.10.1/include
> Checking for include file libimagequant.h in /Applications/sage/local/include
> Checking for include file libimagequant.h in 
> /Library/Frameworks/Python.framework/Versions/3.7/include/python3.7m
> Looking for tiff
> Checking for include file tiff.h in 
> /Applications/sage/local/var/tmp/sage/build/pillow-5.3.0.p0/src/src/libImaging
> Checking for include file tiff.h in /usr/local/Cellar/jpeg/9d/include
> Checking for include file tiff.h in /usr/local/Cellar/libtiff/4.1.0/include
> Found tiff.h
> Found library tiff at /usr/local/Cellar/libtiff/4.1.0/lib/libtiff.dylib
> Couldn't find library libtiff in ['/usr/local/Cellar/jpeg/9d/lib', 
> '/usr/local/Cellar/libtiff/4.1.0/lib', '/usr/local/lib', 
> '/Applications/sage/local/lib', '/opt/local/lib', 
> '/usr/local/Cellar/freetype/2.10.1/lib', '/usr/lib']
> Looking for freetype
> Found library freetype at /usr/local/lib/libfreetype.dylib
> Checking for include file ft2build.h in 
> /Applications/sage/local/var/tmp/sage/build/pillow-5.3.0.p0/src/src/libImaging
> Checking for include file ft2build.h in 
> /Applications/sage/local/var/tmp/sage/build/pillow-5.3.0.p0/src/src/libImaging/freetype2
> Checking for include file ft2build.h in /usr/local/Cellar/jpeg/9d/include
> Checking for include file ft2build.h in 
> /usr/local/Cellar/jpeg/9d/include/freetype2
> Checking for include file ft2build.h in 
> /usr/local/Cellar/libtiff/4.1.0/include
> Checking for include file ft2build.h in 
> /usr/local/Cellar/libtiff/4.1.0/include/freetype2
> Checking for include file ft2build.h in /usr/local/include/freetype2
> Checking for include file ft2build.h in /usr/local/include/freetype2/freetype2
> Checking for include file ft2build.h in /Applications/sage/local/include
> Checking for include file ft2build.h in 
> /Applications/sage/local/include/freetype2
> Checking for include file ft2build.h in 
> /Applications/Xcode.app/Contents/Developer/Platforms/MacOSX.platform/Developer/SDKs/MacOSX.sdk/usr/include
> Checking for include file ft2build.h in 
> /Applications/Xcode.app/Contents/Developer/Platforms/MacOSX.platform/Developer/SDKs/MacOSX.sdk/usr/include/freetype2
> Checking for include file ft2build.h in /opt/local/include
> Checking for include file ft2build.h in /opt/local/include/freetype2
> Checking for include file ft2build.h in /usr/local/include
> Found ft2build.h in /usr/local/include
> Looking for lcms
> Checking for include file lcms2.h in /usr/local/include/freetype2
> Checking for include file lcms2.h in 
> /Applications/sage/local/var/tmp/sage/build/pillow-5.3.0.p0/src/src/libImaging
> Checking for include file lcms2.h in /usr/local/Cellar/jpeg/9d/include
> Checking for include file lcms2.h in /usr/local/Cellar/libtiff/4.1.0/include
> Checking for include file lcms2.h in /Applications/sage/local/include
> Checking for include file lcms2.h in 
> /Applications/Xcode.app/Contents/Developer/Platforms/MacOSX.platform/Developer/SDKs/MacOSX.sdk/usr/include
> Checking for include file lcms2.h in /opt/local/include
> Checking for include file lcms2.h in /usr/local/include
> Checking for include file lcms2.h in /usr/local/Cellar/freetype/2.10.1/include
> Checking for include file lcms2.h in /Applications/sage/local/include
> Checking for include file lcms2.h in 
> /Library/Frameworks/Python.framework/Versions/3.7/include/python3.7m
> Looking for webp
> Checking for include file webp/encode.h in /usr/local/include/freetype2
> Checking for include file webp/encode.h in 
> /Applications/sage/local/var/tmp/sage/build/pillow-5.3.0.p0/src/src/libImaging
> Checking for include file webp/encode.h in /usr/local/Cellar/jpeg/9d/include
> Checking for include file webp/encode.h in 
> /usr/local/Cellar/libtiff/4.1.0/include
> Checking for include file webp/encode.h in /Applications/sage/local/include
> Checking for include file webp/encode.h in 
> /Applications/Xcode.app/Contents/Developer/Platforms/MacOSX.platform/Developer/SDKs/MacOSX.sdk/usr/include
> Checking for include file webp/encode.h in /opt/local/include
> Checking for include file webp/encode.h in /usr/local/include
> Found webp/encode.h
> Checking for include file webp/decode.h in /usr/local/include/freetype2
> Checking for include file webp/decode.h in 
> /Applications/sage/local/var/tmp/sage/build/pillow-5.3.0.p0/src/src/libImaging
> Checking for include file webp/decode.h in /usr/local/Cellar/jpeg/9d/include
> Checking for include file webp/decode.h in 
> /usr/local/Cellar/libtiff/4.1.0/include
> Checking for include file webp/decode.h in /Applications/sage/local/include
> Checking for include file webp/decode.h in 
> /Applications/Xcode.app/Contents/Developer/Platforms/MacOSX.platform/Developer/SDKs/MacOSX.sdk/usr/include
> Checking for include file webp/decode.h in /opt/local/include
> Checking for include file webp/decode.h in /usr/local/include
> Found webp/decode.h
> Found library webp at /usr/local/lib/libwebp.dylib
> Looking for webpmux
> Checking for include file webp/mux.h in /usr/local/include/freetype2
> Checking for include file webp/mux.h in 
> /Applications/sage/local/var/tmp/sage/build/pillow-5.3.0.p0/src/src/libImaging
> Checking for include file webp/mux.h in /usr/local/Cellar/jpeg/9d/include
> Checking for include file webp/mux.h in 
> /usr/local/Cellar/libtiff/4.1.0/include
> Checking for include file webp/mux.h in /Applications/sage/local/include
> Checking for include file webp/mux.h in 
> /Applications/Xcode.app/Contents/Developer/Platforms/MacOSX.platform/Developer/SDKs/MacOSX.sdk/usr/include
> Checking for include file webp/mux.h in /opt/local/include
> Checking for include file webp/mux.h in /usr/local/include
> Found webp/mux.h
> Checking for include file webp/demux.h in /usr/local/include/freetype2
> Checking for include file webp/demux.h in 
> /Applications/sage/local/var/tmp/sage/build/pillow-5.3.0.p0/src/src/libImaging
> Checking for include file webp/demux.h in /usr/local/Cellar/jpeg/9d/include
> Checking for include file webp/demux.h in 
> /usr/local/Cellar/libtiff/4.1.0/include
> Checking for include file webp/demux.h in /Applications/sage/local/include
> Checking for include file webp/demux.h in 
> /Applications/Xcode.app/Contents/Developer/Platforms/MacOSX.platform/Developer/SDKs/MacOSX.sdk/usr/include
> Checking for include file webp/demux.h in /opt/local/include
> Checking for include file webp/demux.h in /usr/local/include
> Found webp/demux.h
> Found library webpmux at /usr/local/lib/libwebpmux.dylib
> Found library webpdemux at /usr/local/lib/libwebpdemux.dylib
> Couldn't find library libwebpmux in ['/usr/local/Cellar/jpeg/9d/lib', 
> '/usr/local/Cellar/libtiff/4.1.0/lib', '/usr/local/lib', 
> '/Applications/sage/local/lib', '/opt/local/lib', 
> '/usr/local/Cellar/freetype/2.10.1/lib', '/usr/lib']
> building 'PIL._imaging' extension
> building 'PIL._imagingft' extension
> building 'PIL._webp' extension
> creating build
> building 'PIL._imagingtk' extension
> creating build/temp.macosx-10.9-x86_64-3.7
> creating build/temp.macosx-10.9-x86_64-3.7
> creating build/temp.macosx-10.9-x86_64-3.7
> creating build/temp.macosx-10.9-x86_64-3.7/src
> gcc -Wno-unused-result -Wsign-compare -Wunreachable-code -fno-common -dynamic 
> -DNDEBUG -g -fwrapv -O3 -Wall -arch x86_64 -g -g -DHAVE_WEBPMUX 
> -I/usr/local/include/freetype2 
> -I/Applications/sage/local/var/tmp/sage/build/pillow-5.3.0.p0/src/src/libImaging
>  -I/usr/local/Cellar/jpeg/9d/include 
> -I/usr/local/Cellar/libtiff/4.1.0/include -I/Applications/sage/local/include 
> -I/Applications/Xcode.app/Contents/Developer/Platforms/MacOSX.platform/Developer/SDKs/MacOSX.sdk/usr/include
>  -I/opt/local/include -I/usr/local/include 
> -I/usr/local/Cellar/freetype/2.10.1/include 
> -I/Applications/sage/local/include 
> -I/Library/Frameworks/Python.framework/Versions/3.7/include/python3.7m -c 
> src/_webp.c -o build/temp.macosx-10.9-x86_64-3.7/src/_webp.o
> gcc -Wno-unused-result -Wsign-compare -Wunreachable-code -fno-common -dynamic 
> -DNDEBUG -g -fwrapv -O3 -Wall -arch x86_64 -g -g 
> -I/usr/local/include/freetype2 
> -I/Applications/sage/local/var/tmp/sage/build/pillow-5.3.0.p0/src/src/libImaging
>  -I/usr/local/Cellar/jpeg/9d/include 
> -I/usr/local/Cellar/libtiff/4.1.0/include -I/Applications/sage/local/include 
> -I/Applications/Xcode.app/Contents/Developer/Platforms/MacOSX.platform/Developer/SDKs/MacOSX.sdk/usr/include
>  -I/opt/local/include -I/usr/local/include 
> -I/usr/local/Cellar/freetype/2.10.1/include 
> -I/Applications/sage/local/include 
> -I/Library/Frameworks/Python.framework/Versions/3.7/include/python3.7m -c 
> src/_imagingft.c -o build/temp.macosx-10.9-x86_64-3.7/src/_imagingft.o
> creating build/temp.macosx-10.9-x86_64-3.7/src/Tk
> creating build/temp.macosx-10.9-x86_64-3.7/src/libImaging
> gcc -Wno-unused-result -Wsign-compare -Wunreachable-code -fno-common -dynamic 
> -DNDEBUG -g -fwrapv -O3 -Wall -arch x86_64 -g -g -Isrc/Tk 
> -I/usr/local/include/freetype2 
> -I/Applications/sage/local/var/tmp/sage/build/pillow-5.3.0.p0/src/src/libImaging
>  -I/usr/local/Cellar/jpeg/9d/include 
> -I/usr/local/Cellar/libtiff/4.1.0/include -I/Applications/sage/local/include 
> -I/Applications/Xcode.app/Contents/Developer/Platforms/MacOSX.platform/Developer/SDKs/MacOSX.sdk/usr/include
>  -I/opt/local/include -I/usr/local/include 
> -I/usr/local/Cellar/freetype/2.10.1/include 
> -I/Applications/sage/local/include 
> -I/Library/Frameworks/Python.framework/Versions/3.7/include/python3.7m -c 
> src/_imagingtk.c -o build/temp.macosx-10.9-x86_64-3.7/src/_imagingtk.o
> gcc -Wno-unused-result -Wsign-compare -Wunreachable-code -fno-common -dynamic 
> -DNDEBUG -g -fwrapv -O3 -Wall -arch x86_64 -g -g -DHAVE_LIBZ -DHAVE_LIBTIFF 
> -DPILLOW_VERSION="5.3.0" -I/usr/local/include/freetype2 
> -I/Applications/sage/local/var/tmp/sage/build/pillow-5.3.0.p0/src/src/libImaging
>  -I/usr/local/Cellar/jpeg/9d/include 
> -I/usr/local/Cellar/libtiff/4.1.0/include -I/Applications/sage/local/include 
> -I/Applications/Xcode.app/Contents/Developer/Platforms/MacOSX.platform/Developer/SDKs/MacOSX.sdk/usr/include
>  -I/opt/local/include -I/usr/local/include 
> -I/usr/local/Cellar/freetype/2.10.1/include 
> -I/Applications/sage/local/include 
> -I/Library/Frameworks/Python.framework/Versions/3.7/include/python3.7m -c 
> src/_imaging.c -o build/temp.macosx-10.9-x86_64-3.7/src/_imaging.o
> In file included from src/_imagingft.c:25:
> /usr/local/include/freetype2/freetype/freetype.h:51:10: fatal error: 
> 'freetype/config/ftconfig.h' file not found
> #include FT_CONFIG_CONFIG_H
>          ^~~~~~~~~~~~~~~~~~
> /usr/local/include/freetype2/freetype/config/ftheader.h:109:29: note: 
> expanded from macro 'FT_CONFIG_CONFIG_H'
> #define FT_CONFIG_CONFIG_H  <freetype/config/ftconfig.h>
>                             ^~~~~~~~~~~~~~~~~~~~~~~~~~~~
> <scratch space>:36:1: note: expanded from here
> <freetype/config/ftconfig.h>
> ^~~~~~~~~~~~~~~~~~~~~~~~~~~~
> 1 error generated.
> gcc -Wno-unused-result -Wsign-compare -Wunreachable-code -fno-common -dynamic 
> -DNDEBUG -g -fwrapv -O3 -Wall -arch x86_64 -g -g -Isrc/Tk 
> -I/usr/local/include/freetype2 
> -I/Applications/sage/local/var/tmp/sage/build/pillow-5.3.0.p0/src/src/libImaging
>  -I/usr/local/Cellar/jpeg/9d/include 
> -I/usr/local/Cellar/libtiff/4.1.0/include -I/Applications/sage/local/include 
> -I/Applications/Xcode.app/Contents/Developer/Platforms/MacOSX.platform/Developer/SDKs/MacOSX.sdk/usr/include
>  -I/opt/local/include -I/usr/local/include 
> -I/usr/local/Cellar/freetype/2.10.1/include 
> -I/Applications/sage/local/include 
> -I/Library/Frameworks/Python.framework/Versions/3.7/include/python3.7m -c 
> src/Tk/tkImaging.c -o build/temp.macosx-10.9-x86_64-3.7/src/Tk/tkImaging.o
> building 'PIL._imagingmath' extension
> gcc -Wno-unused-result -Wsign-compare -Wunreachable-code -fno-common -dynamic 
> -DNDEBUG -g -fwrapv -O3 -Wall -arch x86_64 -g -g 
> -I/usr/local/include/freetype2 
> -I/Applications/sage/local/var/tmp/sage/build/pillow-5.3.0.p0/src/src/libImaging
>  -I/usr/local/Cellar/jpeg/9d/include 
> -I/usr/local/Cellar/libtiff/4.1.0/include -I/Applications/sage/local/include 
> -I/Applications/Xcode.app/Contents/Developer/Platforms/MacOSX.platform/Developer/SDKs/MacOSX.sdk/usr/include
>  -I/opt/local/include -I/usr/local/include 
> -I/usr/local/Cellar/freetype/2.10.1/include 
> -I/Applications/sage/local/include 
> -I/Library/Frameworks/Python.framework/Versions/3.7/include/python3.7m -c 
> src/_imagingmath.c -o build/temp.macosx-10.9-x86_64-3.7/src/_imagingmath.o
> creating build/lib.macosx-10.9-x86_64-3.7
> creating build/lib.macosx-10.9-x86_64-3.7/PIL
> gcc -bundle -undefined dynamic_lookup -arch x86_64 -g 
> -L/Applications/sage/local/lib -Wl,-rpath,/Applications/sage/local/lib -g 
> build/temp.macosx-10.9-x86_64-3.7/src/_webp.o -L/usr/local/Cellar/jpeg/9d/lib 
> -L/usr/local/Cellar/libtiff/4.1.0/lib -L/usr/local/lib 
> -L/Applications/sage/local/lib -L/opt/local/lib 
> -L/usr/local/Cellar/freetype/2.10.1/lib -L/usr/lib -lwebp -lwebpmux 
> -lwebpdemux -o 
> build/lib.macosx-10.9-x86_64-3.7/PIL/_webp.cpython-37m-darwin.so
> gcc -bundle -undefined dynamic_lookup -arch x86_64 -g 
> -L/Applications/sage/local/lib -Wl,-rpath,/Applications/sage/local/lib -g 
> build/temp.macosx-10.9-x86_64-3.7/src/_imagingtk.o 
> build/temp.macosx-10.9-x86_64-3.7/src/Tk/tkImaging.o 
> -L/usr/local/Cellar/jpeg/9d/lib -L/usr/local/Cellar/libtiff/4.1.0/lib 
> -L/usr/local/lib -L/Applications/sage/local/lib -L/opt/local/lib 
> -L/usr/local/Cellar/freetype/2.10.1/lib -L/usr/lib -o 
> build/lib.macosx-10.9-x86_64-3.7/PIL/_imagingtk.cpython-37m-darwin.so
> building 'PIL._imagingmorph' extension
> gcc -Wno-unused-result -Wsign-compare -Wunreachable-code -fno-common -dynamic 
> -DNDEBUG -g -fwrapv -O3 -Wall -arch x86_64 -g -g 
> -I/usr/local/include/freetype2 
> -I/Applications/sage/local/var/tmp/sage/build/pillow-5.3.0.p0/src/src/libImaging
>  -I/usr/local/Cellar/jpeg/9d/include 
> -I/usr/local/Cellar/libtiff/4.1.0/include -I/Applications/sage/local/include 
> -I/Applications/Xcode.app/Contents/Developer/Platforms/MacOSX.platform/Developer/SDKs/MacOSX.sdk/usr/include
>  -I/opt/local/include -I/usr/local/include 
> -I/usr/local/Cellar/freetype/2.10.1/include 
> -I/Applications/sage/local/include 
> -I/Library/Frameworks/Python.framework/Versions/3.7/include/python3.7m -c 
> src/_imagingmorph.c -o build/temp.macosx-10.9-x86_64-3.7/src/_imagingmorph.o
> gcc -bundle -undefined dynamic_lookup -arch x86_64 -g 
> -L/Applications/sage/local/lib -Wl,-rpath,/Applications/sage/local/lib -g 
> build/temp.macosx-10.9-x86_64-3.7/src/_imagingmorph.o 
> -L/usr/local/Cellar/jpeg/9d/lib -L/usr/local/Cellar/libtiff/4.1.0/lib 
> -L/usr/local/lib -L/Applications/sage/local/lib -L/opt/local/lib 
> -L/usr/local/Cellar/freetype/2.10.1/lib -L/usr/lib -o 
> build/lib.macosx-10.9-x86_64-3.7/PIL/_imagingmorph.cpython-37m-darwin.so
> gcc -bundle -undefined dynamic_lookup -arch x86_64 -g 
> -L/Applications/sage/local/lib -Wl,-rpath,/Applications/sage/local/lib -g 
> build/temp.macosx-10.9-x86_64-3.7/src/_imagingmath.o 
> -L/usr/local/Cellar/jpeg/9d/lib -L/usr/local/Cellar/libtiff/4.1.0/lib 
> -L/usr/local/lib -L/Applications/sage/local/lib -L/opt/local/lib 
> -L/usr/local/Cellar/freetype/2.10.1/lib -L/usr/lib -o 
> build/lib.macosx-10.9-x86_64-3.7/PIL/_imagingmath.cpython-37m-darwin.so
> gcc -Wno-unused-result -Wsign-compare -Wunreachable-code -fno-common -dynamic 
> -DNDEBUG -g -fwrapv -O3 -Wall -arch x86_64 -g -g -DHAVE_LIBZ -DHAVE_LIBTIFF 
> -DPILLOW_VERSION="5.3.0" -I/usr/local/include/freetype2 
> -I/Applications/sage/local/var/tmp/sage/build/pillow-5.3.0.p0/src/src/libImaging
>  -I/usr/local/Cellar/jpeg/9d/include 
> -I/usr/local/Cellar/libtiff/4.1.0/include -I/Applications/sage/local/include 
> -I/Applications/Xcode.app/Contents/Developer/Platforms/MacOSX.platform/Developer/SDKs/MacOSX.sdk/usr/include
>  -I/opt/local/include -I/usr/local/include 
> -I/usr/local/Cellar/freetype/2.10.1/include 
> -I/Applications/sage/local/include 
> -I/Library/Frameworks/Python.framework/Versions/3.7/include/python3.7m -c 
> src/decode.c -o build/temp.macosx-10.9-x86_64-3.7/src/decode.o
> gcc -Wno-unused-result -Wsign-compare -Wunreachable-code -fno-common -dynamic 
> -DNDEBUG -g -fwrapv -O3 -Wall -arch x86_64 -g -g -DHAVE_LIBZ -DHAVE_LIBTIFF 
> -DPILLOW_VERSION="5.3.0" -I/usr/local/include/freetype2 
> -I/Applications/sage/local/var/tmp/sage/build/pillow-5.3.0.p0/src/src/libImaging
>  -I/usr/local/Cellar/jpeg/9d/include 
> -I/usr/local/Cellar/libtiff/4.1.0/include -I/Applications/sage/local/include 
> -I/Applications/Xcode.app/Contents/Developer/Platforms/MacOSX.platform/Developer/SDKs/MacOSX.sdk/usr/include
>  -I/opt/local/include -I/usr/local/include 
> -I/usr/local/Cellar/freetype/2.10.1/include 
> -I/Applications/sage/local/include 
> -I/Library/Frameworks/Python.framework/Versions/3.7/include/python3.7m -c 
> src/encode.c -o build/temp.macosx-10.9-x86_64-3.7/src/encode.o
> gcc -Wno-unused-result -Wsign-compare -Wunreachable-code -fno-common -dynamic 
> -DNDEBUG -g -fwrapv -O3 -Wall -arch x86_64 -g -g -DHAVE_LIBZ -DHAVE_LIBTIFF 
> -DPILLOW_VERSION="5.3.0" -I/usr/local/include/freetype2 
> -I/Applications/sage/local/var/tmp/sage/build/pillow-5.3.0.p0/src/src/libImaging
>  -I/usr/local/Cellar/jpeg/9d/include 
> -I/usr/local/Cellar/libtiff/4.1.0/include -I/Applications/sage/local/include 
> -I/Applications/Xcode.app/Contents/Developer/Platforms/MacOSX.platform/Developer/SDKs/MacOSX.sdk/usr/include
>  -I/opt/local/include -I/usr/local/include 
> -I/usr/local/Cellar/freetype/2.10.1/include 
> -I/Applications/sage/local/include 
> -I/Library/Frameworks/Python.framework/Versions/3.7/include/python3.7m -c 
> src/map.c -o build/temp.macosx-10.9-x86_64-3.7/src/map.o
> gcc -Wno-unused-result -Wsign-compare -Wunreachable-code -fno-common -dynamic 
> -DNDEBUG -g -fwrapv -O3 -Wall -arch x86_64 -g -g -DHAVE_LIBZ -DHAVE_LIBTIFF 
> -DPILLOW_VERSION="5.3.0" -I/usr/local/include/freetype2 
> -I/Applications/sage/local/var/tmp/sage/build/pillow-5.3.0.p0/src/src/libImaging
>  -I/usr/local/Cellar/jpeg/9d/include 
> -I/usr/local/Cellar/libtiff/4.1.0/include -I/Applications/sage/local/include 
> -I/Applications/Xcode.app/Contents/Developer/Platforms/MacOSX.platform/Developer/SDKs/MacOSX.sdk/usr/include
>  -I/opt/local/include -I/usr/local/include 
> -I/usr/local/Cellar/freetype/2.10.1/include 
> -I/Applications/sage/local/include 
> -I/Library/Frameworks/Python.framework/Versions/3.7/include/python3.7m -c 
> src/display.c -o build/temp.macosx-10.9-x86_64-3.7/src/display.o
> gcc -Wno-unused-result -Wsign-compare -Wunreachable-code -fno-common -dynamic 
> -DNDEBUG -g -fwrapv -O3 -Wall -arch x86_64 -g -g -DHAVE_LIBZ -DHAVE_LIBTIFF 
> -DPILLOW_VERSION="5.3.0" -I/usr/local/include/freetype2 
> -I/Applications/sage/local/var/tmp/sage/build/pillow-5.3.0.p0/src/src/libImaging
>  -I/usr/local/Cellar/jpeg/9d/include 
> -I/usr/local/Cellar/libtiff/4.1.0/include -I/Applications/sage/local/include 
> -I/Applications/Xcode.app/Contents/Developer/Platforms/MacOSX.platform/Developer/SDKs/MacOSX.sdk/usr/include
>  -I/opt/local/include -I/usr/local/include 
> -I/usr/local/Cellar/freetype/2.10.1/include 
> -I/Applications/sage/local/include 
> -I/Library/Frameworks/Python.framework/Versions/3.7/include/python3.7m -c 
> src/outline.c -o build/temp.macosx-10.9-x86_64-3.7/src/outline.o
> gcc -Wno-unused-result -Wsign-compare -Wunreachable-code -fno-common -dynamic 
> -DNDEBUG -g -fwrapv -O3 -Wall -arch x86_64 -g -g -DHAVE_LIBZ -DHAVE_LIBTIFF 
> -DPILLOW_VERSION="5.3.0" -I/usr/local/include/freetype2 
> -I/Applications/sage/local/var/tmp/sage/build/pillow-5.3.0.p0/src/src/libImaging
>  -I/usr/local/Cellar/jpeg/9d/include 
> -I/usr/local/Cellar/libtiff/4.1.0/include -I/Applications/sage/local/include 
> -I/Applications/Xcode.app/Contents/Developer/Platforms/MacOSX.platform/Developer/SDKs/MacOSX.sdk/usr/include
>  -I/opt/local/include -I/usr/local/include 
> -I/usr/local/Cellar/freetype/2.10.1/include 
> -I/Applications/sage/local/include 
> -I/Library/Frameworks/Python.framework/Versions/3.7/include/python3.7m -c 
> src/path.c -o build/temp.macosx-10.9-x86_64-3.7/src/path.o
> src/path.c:61:15: warning: comparison of integers of different signs: 
> 'Py_ssize_t' (aka 'long') and 'unsigned long' [-Wsign-compare]
>     if (count > (SIZE_MAX / (2 * sizeof(double))) - 1 ) {
>         ~~~~~ ^ ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
> 1 warning generated.
> gcc -Wno-unused-result -Wsign-compare -Wunreachable-code -fno-common -dynamic 
> -DNDEBUG -g -fwrapv -O3 -Wall -arch x86_64 -g -g -DHAVE_LIBZ -DHAVE_LIBTIFF 
> -DPILLOW_VERSION="5.3.0" -I/usr/local/include/freetype2 
> -I/Applications/sage/local/var/tmp/sage/build/pillow-5.3.0.p0/src/src/libImaging
>  -I/usr/local/Cellar/jpeg/9d/include 
> -I/usr/local/Cellar/libtiff/4.1.0/include -I/Applications/sage/local/include 
> -I/Applications/Xcode.app/Contents/Developer/Platforms/MacOSX.platform/Developer/SDKs/MacOSX.sdk/usr/include
>  -I/opt/local/include -I/usr/local/include 
> -I/usr/local/Cellar/freetype/2.10.1/include 
> -I/Applications/sage/local/include 
> -I/Library/Frameworks/Python.framework/Versions/3.7/include/python3.7m -c 
> src/libImaging/Access.c -o 
> build/temp.macosx-10.9-x86_64-3.7/src/libImaging/Access.o
> gcc -Wno-unused-result -Wsign-compare -Wunreachable-code -fno-common -dynamic 
> -DNDEBUG -g -fwrapv -O3 -Wall -arch x86_64 -g -g -DHAVE_LIBZ -DHAVE_LIBTIFF 
> -DPILLOW_VERSION="5.3.0" -I/usr/local/include/freetype2 
> -I/Applications/sage/local/var/tmp/sage/build/pillow-5.3.0.p0/src/src/libImaging
>  -I/usr/local/Cellar/jpeg/9d/include 
> -I/usr/local/Cellar/libtiff/4.1.0/include -I/Applications/sage/local/include 
> -I/Applications/Xcode.app/Contents/Developer/Platforms/MacOSX.platform/Developer/SDKs/MacOSX.sdk/usr/include
>  -I/opt/local/include -I/usr/local/include 
> -I/usr/local/Cellar/freetype/2.10.1/include 
> -I/Applications/sage/local/include 
> -I/Library/Frameworks/Python.framework/Versions/3.7/include/python3.7m -c 
> src/libImaging/AlphaComposite.c -o 
> build/temp.macosx-10.9-x86_64-3.7/src/libImaging/AlphaComposite.o
> gcc -Wno-unused-result -Wsign-compare -Wunreachable-code -fno-common -dynamic 
> -DNDEBUG -g -fwrapv -O3 -Wall -arch x86_64 -g -g -DHAVE_LIBZ -DHAVE_LIBTIFF 
> -DPILLOW_VERSION="5.3.0" -I/usr/local/include/freetype2 
> -I/Applications/sage/local/var/tmp/sage/build/pillow-5.3.0.p0/src/src/libImaging
>  -I/usr/local/Cellar/jpeg/9d/include 
> -I/usr/local/Cellar/libtiff/4.1.0/include -I/Applications/sage/local/include 
> -I/Applications/Xcode.app/Contents/Developer/Platforms/MacOSX.platform/Developer/SDKs/MacOSX.sdk/usr/include
>  -I/opt/local/include -I/usr/local/include 
> -I/usr/local/Cellar/freetype/2.10.1/include 
> -I/Applications/sage/local/include 
> -I/Library/Frameworks/Python.framework/Versions/3.7/include/python3.7m -c 
> src/libImaging/Resample.c -o 
> build/temp.macosx-10.9-x86_64-3.7/src/libImaging/Resample.o
> src/libImaging/Resample.c:200:17: warning: comparison of integers of 
> different signs: 'int' and 'unsigned long' [-Wsign-compare]
>     if (outSize > INT_MAX / (ksize * sizeof(double))) {
>         ~~~~~~~ ^ ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
> 1 warning generated.
> gcc -Wno-unused-result -Wsign-compare -Wunreachable-code -fno-common -dynamic 
> -DNDEBUG -g -fwrapv -O3 -Wall -arch x86_64 -g -g -DHAVE_LIBZ -DHAVE_LIBTIFF 
> -DPILLOW_VERSION="5.3.0" -I/usr/local/include/freetype2 
> -I/Applications/sage/local/var/tmp/sage/build/pillow-5.3.0.p0/src/src/libImaging
>  -I/usr/local/Cellar/jpeg/9d/include 
> -I/usr/local/Cellar/libtiff/4.1.0/include -I/Applications/sage/local/include 
> -I/Applications/Xcode.app/Contents/Developer/Platforms/MacOSX.platform/Developer/SDKs/MacOSX.sdk/usr/include
>  -I/opt/local/include -I/usr/local/include 
> -I/usr/local/Cellar/freetype/2.10.1/include 
> -I/Applications/sage/local/include 
> -I/Library/Frameworks/Python.framework/Versions/3.7/include/python3.7m -c 
> src/libImaging/Bands.c -o 
> build/temp.macosx-10.9-x86_64-3.7/src/libImaging/Bands.o
> gcc -Wno-unused-result -Wsign-compare -Wunreachable-code -fno-common -dynamic 
> -DNDEBUG -g -fwrapv -O3 -Wall -arch x86_64 -g -g -DHAVE_LIBZ -DHAVE_LIBTIFF 
> -DPILLOW_VERSION="5.3.0" -I/usr/local/include/freetype2 
> -I/Applications/sage/local/var/tmp/sage/build/pillow-5.3.0.p0/src/src/libImaging
>  -I/usr/local/Cellar/jpeg/9d/include 
> -I/usr/local/Cellar/libtiff/4.1.0/include -I/Applications/sage/local/include 
> -I/Applications/Xcode.app/Contents/Developer/Platforms/MacOSX.platform/Developer/SDKs/MacOSX.sdk/usr/include
>  -I/opt/local/include -I/usr/local/include 
> -I/usr/local/Cellar/freetype/2.10.1/include 
> -I/Applications/sage/local/include 
> -I/Library/Frameworks/Python.framework/Versions/3.7/include/python3.7m -c 
> src/libImaging/BcnDecode.c -o 
> build/temp.macosx-10.9-x86_64-3.7/src/libImaging/BcnDecode.o
> gcc -Wno-unused-result -Wsign-compare -Wunreachable-code -fno-common -dynamic 
> -DNDEBUG -g -fwrapv -O3 -Wall -arch x86_64 -g -g -DHAVE_LIBZ -DHAVE_LIBTIFF 
> -DPILLOW_VERSION="5.3.0" -I/usr/local/include/freetype2 
> -I/Applications/sage/local/var/tmp/sage/build/pillow-5.3.0.p0/src/src/libImaging
>  -I/usr/local/Cellar/jpeg/9d/include 
> -I/usr/local/Cellar/libtiff/4.1.0/include -I/Applications/sage/local/include 
> -I/Applications/Xcode.app/Contents/Developer/Platforms/MacOSX.platform/Developer/SDKs/MacOSX.sdk/usr/include
>  -I/opt/local/include -I/usr/local/include 
> -I/usr/local/Cellar/freetype/2.10.1/include 
> -I/Applications/sage/local/include 
> -I/Library/Frameworks/Python.framework/Versions/3.7/include/python3.7m -c 
> src/libImaging/BitDecode.c -o 
> build/temp.macosx-10.9-x86_64-3.7/src/libImaging/BitDecode.o
> gcc -Wno-unused-result -Wsign-compare -Wunreachable-code -fno-common -dynamic 
> -DNDEBUG -g -fwrapv -O3 -Wall -arch x86_64 -g -g -DHAVE_LIBZ -DHAVE_LIBTIFF 
> -DPILLOW_VERSION="5.3.0" -I/usr/local/include/freetype2 
> -I/Applications/sage/local/var/tmp/sage/build/pillow-5.3.0.p0/src/src/libImaging
>  -I/usr/local/Cellar/jpeg/9d/include 
> -I/usr/local/Cellar/libtiff/4.1.0/include -I/Applications/sage/local/include 
> -I/Applications/Xcode.app/Contents/Developer/Platforms/MacOSX.platform/Developer/SDKs/MacOSX.sdk/usr/include
>  -I/opt/local/include -I/usr/local/include 
> -I/usr/local/Cellar/freetype/2.10.1/include 
> -I/Applications/sage/local/include 
> -I/Library/Frameworks/Python.framework/Versions/3.7/include/python3.7m -c 
> src/libImaging/Blend.c -o 
> build/temp.macosx-10.9-x86_64-3.7/src/libImaging/Blend.o
> gcc -Wno-unused-result -Wsign-compare -Wunreachable-code -fno-common -dynamic 
> -DNDEBUG -g -fwrapv -O3 -Wall -arch x86_64 -g -g -DHAVE_LIBZ -DHAVE_LIBTIFF 
> -DPILLOW_VERSION="5.3.0" -I/usr/local/include/freetype2 
> -I/Applications/sage/local/var/tmp/sage/build/pillow-5.3.0.p0/src/src/libImaging
>  -I/usr/local/Cellar/jpeg/9d/include 
> -I/usr/local/Cellar/libtiff/4.1.0/include -I/Applications/sage/local/include 
> -I/Applications/Xcode.app/Contents/Developer/Platforms/MacOSX.platform/Developer/SDKs/MacOSX.sdk/usr/include
>  -I/opt/local/include -I/usr/local/include 
> -I/usr/local/Cellar/freetype/2.10.1/include 
> -I/Applications/sage/local/include 
> -I/Library/Frameworks/Python.framework/Versions/3.7/include/python3.7m -c 
> src/libImaging/Chops.c -o 
> build/temp.macosx-10.9-x86_64-3.7/src/libImaging/Chops.o
> gcc -Wno-unused-result -Wsign-compare -Wunreachable-code -fno-common -dynamic 
> -DNDEBUG -g -fwrapv -O3 -Wall -arch x86_64 -g -g -DHAVE_LIBZ -DHAVE_LIBTIFF 
> -DPILLOW_VERSION="5.3.0" -I/usr/local/include/freetype2 
> -I/Applications/sage/local/var/tmp/sage/build/pillow-5.3.0.p0/src/src/libImaging
>  -I/usr/local/Cellar/jpeg/9d/include 
> -I/usr/local/Cellar/libtiff/4.1.0/include -I/Applications/sage/local/include 
> -I/Applications/Xcode.app/Contents/Developer/Platforms/MacOSX.platform/Developer/SDKs/MacOSX.sdk/usr/include
>  -I/opt/local/include -I/usr/local/include 
> -I/usr/local/Cellar/freetype/2.10.1/include 
> -I/Applications/sage/local/include 
> -I/Library/Frameworks/Python.framework/Versions/3.7/include/python3.7m -c 
> src/libImaging/ColorLUT.c -o 
> build/temp.macosx-10.9-x86_64-3.7/src/libImaging/ColorLUT.o
> gcc -Wno-unused-result -Wsign-compare -Wunreachable-code -fno-common -dynamic 
> -DNDEBUG -g -fwrapv -O3 -Wall -arch x86_64 -g -g -DHAVE_LIBZ -DHAVE_LIBTIFF 
> -DPILLOW_VERSION="5.3.0" -I/usr/local/include/freetype2 
> -I/Applications/sage/local/var/tmp/sage/build/pillow-5.3.0.p0/src/src/libImaging
>  -I/usr/local/Cellar/jpeg/9d/include 
> -I/usr/local/Cellar/libtiff/4.1.0/include -I/Applications/sage/local/include 
> -I/Applications/Xcode.app/Contents/Developer/Platforms/MacOSX.platform/Developer/SDKs/MacOSX.sdk/usr/include
>  -I/opt/local/include -I/usr/local/include 
> -I/usr/local/Cellar/freetype/2.10.1/include 
> -I/Applications/sage/local/include 
> -I/Library/Frameworks/Python.framework/Versions/3.7/include/python3.7m -c 
> src/libImaging/Convert.c -o 
> build/temp.macosx-10.9-x86_64-3.7/src/libImaging/Convert.o
> gcc -Wno-unused-result -Wsign-compare -Wunreachable-code -fno-common -dynamic 
> -DNDEBUG -g -fwrapv -O3 -Wall -arch x86_64 -g -g -DHAVE_LIBZ -DHAVE_LIBTIFF 
> -DPILLOW_VERSION="5.3.0" -I/usr/local/include/freetype2 
> -I/Applications/sage/local/var/tmp/sage/build/pillow-5.3.0.p0/src/src/libImaging
>  -I/usr/local/Cellar/jpeg/9d/include 
> -I/usr/local/Cellar/libtiff/4.1.0/include -I/Applications/sage/local/include 
> -I/Applications/Xcode.app/Contents/Developer/Platforms/MacOSX.platform/Developer/SDKs/MacOSX.sdk/usr/include
>  -I/opt/local/include -I/usr/local/include 
> -I/usr/local/Cellar/freetype/2.10.1/include 
> -I/Applications/sage/local/include 
> -I/Library/Frameworks/Python.framework/Versions/3.7/include/python3.7m -c 
> src/libImaging/ConvertYCbCr.c -o 
> build/temp.macosx-10.9-x86_64-3.7/src/libImaging/ConvertYCbCr.o
> gcc -Wno-unused-result -Wsign-compare -Wunreachable-code -fno-common -dynamic 
> -DNDEBUG -g -fwrapv -O3 -Wall -arch x86_64 -g -g -DHAVE_LIBZ -DHAVE_LIBTIFF 
> -DPILLOW_VERSION="5.3.0" -I/usr/local/include/freetype2 
> -I/Applications/sage/local/var/tmp/sage/build/pillow-5.3.0.p0/src/src/libImaging
>  -I/usr/local/Cellar/jpeg/9d/include 
> -I/usr/local/Cellar/libtiff/4.1.0/include -I/Applications/sage/local/include 
> -I/Applications/Xcode.app/Contents/Developer/Platforms/MacOSX.platform/Developer/SDKs/MacOSX.sdk/usr/include
>  -I/opt/local/include -I/usr/local/include 
> -I/usr/local/Cellar/freetype/2.10.1/include 
> -I/Applications/sage/local/include 
> -I/Library/Frameworks/Python.framework/Versions/3.7/include/python3.7m -c 
> src/libImaging/Copy.c -o 
> build/temp.macosx-10.9-x86_64-3.7/src/libImaging/Copy.o
> gcc -Wno-unused-result -Wsign-compare -Wunreachable-code -fno-common -dynamic 
> -DNDEBUG -g -fwrapv -O3 -Wall -arch x86_64 -g -g -DHAVE_LIBZ -DHAVE_LIBTIFF 
> -DPILLOW_VERSION="5.3.0" -I/usr/local/include/freetype2 
> -I/Applications/sage/local/var/tmp/sage/build/pillow-5.3.0.p0/src/src/libImaging
>  -I/usr/local/Cellar/jpeg/9d/include 
> -I/usr/local/Cellar/libtiff/4.1.0/include -I/Applications/sage/local/include 
> -I/Applications/Xcode.app/Contents/Developer/Platforms/MacOSX.platform/Developer/SDKs/MacOSX.sdk/usr/include
>  -I/opt/local/include -I/usr/local/include 
> -I/usr/local/Cellar/freetype/2.10.1/include 
> -I/Applications/sage/local/include 
> -I/Library/Frameworks/Python.framework/Versions/3.7/include/python3.7m -c 
> src/libImaging/Crop.c -o 
> build/temp.macosx-10.9-x86_64-3.7/src/libImaging/Crop.o
> gcc -Wno-unused-result -Wsign-compare -Wunreachable-code -fno-common -dynamic 
> -DNDEBUG -g -fwrapv -O3 -Wall -arch x86_64 -g -g -DHAVE_LIBZ -DHAVE_LIBTIFF 
> -DPILLOW_VERSION="5.3.0" -I/usr/local/include/freetype2 
> -I/Applications/sage/local/var/tmp/sage/build/pillow-5.3.0.p0/src/src/libImaging
>  -I/usr/local/Cellar/jpeg/9d/include 
> -I/usr/local/Cellar/libtiff/4.1.0/include -I/Applications/sage/local/include 
> -I/Applications/Xcode.app/Contents/Developer/Platforms/MacOSX.platform/Developer/SDKs/MacOSX.sdk/usr/include
>  -I/opt/local/include -I/usr/local/include 
> -I/usr/local/Cellar/freetype/2.10.1/include 
> -I/Applications/sage/local/include 
> -I/Library/Frameworks/Python.framework/Versions/3.7/include/python3.7m -c 
> src/libImaging/Dib.c -o build/temp.macosx-10.9-x86_64-3.7/src/libImaging/Dib.o
> gcc -Wno-unused-result -Wsign-compare -Wunreachable-code -fno-common -dynamic 
> -DNDEBUG -g -fwrapv -O3 -Wall -arch x86_64 -g -g -DHAVE_LIBZ -DHAVE_LIBTIFF 
> -DPILLOW_VERSION="5.3.0" -I/usr/local/include/freetype2 
> -I/Applications/sage/local/var/tmp/sage/build/pillow-5.3.0.p0/src/src/libImaging
>  -I/usr/local/Cellar/jpeg/9d/include 
> -I/usr/local/Cellar/libtiff/4.1.0/include -I/Applications/sage/local/include 
> -I/Applications/Xcode.app/Contents/Developer/Platforms/MacOSX.platform/Developer/SDKs/MacOSX.sdk/usr/include
>  -I/opt/local/include -I/usr/local/include 
> -I/usr/local/Cellar/freetype/2.10.1/include 
> -I/Applications/sage/local/include 
> -I/Library/Frameworks/Python.framework/Versions/3.7/include/python3.7m -c 
> src/libImaging/Draw.c -o 
> build/temp.macosx-10.9-x86_64-3.7/src/libImaging/Draw.o
> src/libImaging/Draw.c:973:31: warning: comparison of integers of different 
> signs: 'int' and 'unsigned long' [-Wsign-compare]
>             if (outline->size > INT_MAX / sizeof(Edge)) {
>                 ~~~~~~~~~~~~~ ^ ~~~~~~~~~~~~~~~~~~~~~~
> 1 warning generated.
> gcc -Wno-unused-result -Wsign-compare -Wunreachable-code -fno-common -dynamic 
> -DNDEBUG -g -fwrapv -O3 -Wall -arch x86_64 -g -g -DHAVE_LIBZ -DHAVE_LIBTIFF 
> -DPILLOW_VERSION="5.3.0" -I/usr/local/include/freetype2 
> -I/Applications/sage/local/var/tmp/sage/build/pillow-5.3.0.p0/src/src/libImaging
>  -I/usr/local/Cellar/jpeg/9d/include 
> -I/usr/local/Cellar/libtiff/4.1.0/include -I/Applications/sage/local/include 
> -I/Applications/Xcode.app/Contents/Developer/Platforms/MacOSX.platform/Developer/SDKs/MacOSX.sdk/usr/include
>  -I/opt/local/include -I/usr/local/include 
> -I/usr/local/Cellar/freetype/2.10.1/include 
> -I/Applications/sage/local/include 
> -I/Library/Frameworks/Python.framework/Versions/3.7/include/python3.7m -c 
> src/libImaging/Effects.c -o 
> build/temp.macosx-10.9-x86_64-3.7/src/libImaging/Effects.o
> gcc -Wno-unused-result -Wsign-compare -Wunreachable-code -fno-common -dynamic 
> -DNDEBUG -g -fwrapv -O3 -Wall -arch x86_64 -g -g -DHAVE_LIBZ -DHAVE_LIBTIFF 
> -DPILLOW_VERSION="5.3.0" -I/usr/local/include/freetype2 
> -I/Applications/sage/local/var/tmp/sage/build/pillow-5.3.0.p0/src/src/libImaging
>  -I/usr/local/Cellar/jpeg/9d/include 
> -I/usr/local/Cellar/libtiff/4.1.0/include -I/Applications/sage/local/include 
> -I/Applications/Xcode.app/Contents/Developer/Platforms/MacOSX.platform/Developer/SDKs/MacOSX.sdk/usr/include
>  -I/opt/local/include -I/usr/local/include 
> -I/usr/local/Cellar/freetype/2.10.1/include 
> -I/Applications/sage/local/include 
> -I/Library/Frameworks/Python.framework/Versions/3.7/include/python3.7m -c 
> src/libImaging/EpsEncode.c -o 
> build/temp.macosx-10.9-x86_64-3.7/src/libImaging/EpsEncode.o
> gcc -Wno-unused-result -Wsign-compare -Wunreachable-code -fno-common -dynamic 
> -DNDEBUG -g -fwrapv -O3 -Wall -arch x86_64 -g -g -DHAVE_LIBZ -DHAVE_LIBTIFF 
> -DPILLOW_VERSION="5.3.0" -I/usr/local/include/freetype2 
> -I/Applications/sage/local/var/tmp/sage/build/pillow-5.3.0.p0/src/src/libImaging
>  -I/usr/local/Cellar/jpeg/9d/include 
> -I/usr/local/Cellar/libtiff/4.1.0/include -I/Applications/sage/local/include 
> -I/Applications/Xcode.app/Contents/Developer/Platforms/MacOSX.platform/Developer/SDKs/MacOSX.sdk/usr/include
>  -I/opt/local/include -I/usr/local/include 
> -I/usr/local/Cellar/freetype/2.10.1/include 
> -I/Applications/sage/local/include 
> -I/Library/Frameworks/Python.framework/Versions/3.7/include/python3.7m -c 
> src/libImaging/File.c -o 
> build/temp.macosx-10.9-x86_64-3.7/src/libImaging/File.o
> gcc -Wno-unused-result -Wsign-compare -Wunreachable-code -fno-common -dynamic 
> -DNDEBUG -g -fwrapv -O3 -Wall -arch x86_64 -g -g -DHAVE_LIBZ -DHAVE_LIBTIFF 
> -DPILLOW_VERSION="5.3.0" -I/usr/local/include/freetype2 
> -I/Applications/sage/local/var/tmp/sage/build/pillow-5.3.0.p0/src/src/libImaging
>  -I/usr/local/Cellar/jpeg/9d/include 
> -I/usr/local/Cellar/libtiff/4.1.0/include -I/Applications/sage/local/include 
> -I/Applications/Xcode.app/Contents/Developer/Platforms/MacOSX.platform/Developer/SDKs/MacOSX.sdk/usr/include
>  -I/opt/local/include -I/usr/local/include 
> -I/usr/local/Cellar/freetype/2.10.1/include 
> -I/Applications/sage/local/include 
> -I/Library/Frameworks/Python.framework/Versions/3.7/include/python3.7m -c 
> src/libImaging/Fill.c -o 
> build/temp.macosx-10.9-x86_64-3.7/src/libImaging/Fill.o
> gcc -Wno-unused-result -Wsign-compare -Wunreachable-code -fno-common -dynamic 
> -DNDEBUG -g -fwrapv -O3 -Wall -arch x86_64 -g -g -DHAVE_LIBZ -DHAVE_LIBTIFF 
> -DPILLOW_VERSION="5.3.0" -I/usr/local/include/freetype2 
> -I/Applications/sage/local/var/tmp/sage/build/pillow-5.3.0.p0/src/src/libImaging
>  -I/usr/local/Cellar/jpeg/9d/include 
> -I/usr/local/Cellar/libtiff/4.1.0/include -I/Applications/sage/local/include 
> -I/Applications/Xcode.app/Contents/Developer/Platforms/MacOSX.platform/Developer/SDKs/MacOSX.sdk/usr/include
>  -I/opt/local/include -I/usr/local/include 
> -I/usr/local/Cellar/freetype/2.10.1/include 
> -I/Applications/sage/local/include 
> -I/Library/Frameworks/Python.framework/Versions/3.7/include/python3.7m -c 
> src/libImaging/Filter.c -o 
> build/temp.macosx-10.9-x86_64-3.7/src/libImaging/Filter.o
> gcc -Wno-unused-result -Wsign-compare -Wunreachable-code -fno-common -dynamic 
> -DNDEBUG -g -fwrapv -O3 -Wall -arch x86_64 -g -g -DHAVE_LIBZ -DHAVE_LIBTIFF 
> -DPILLOW_VERSION="5.3.0" -I/usr/local/include/freetype2 
> -I/Applications/sage/local/var/tmp/sage/build/pillow-5.3.0.p0/src/src/libImaging
>  -I/usr/local/Cellar/jpeg/9d/include 
> -I/usr/local/Cellar/libtiff/4.1.0/include -I/Applications/sage/local/include 
> -I/Applications/Xcode.app/Contents/Developer/Platforms/MacOSX.platform/Developer/SDKs/MacOSX.sdk/usr/include
>  -I/opt/local/include -I/usr/local/include 
> -I/usr/local/Cellar/freetype/2.10.1/include 
> -I/Applications/sage/local/include 
> -I/Library/Frameworks/Python.framework/Versions/3.7/include/python3.7m -c 
> src/libImaging/FliDecode.c -o 
> build/temp.macosx-10.9-x86_64-3.7/src/libImaging/FliDecode.o
> gcc -Wno-unused-result -Wsign-compare -Wunreachable-code -fno-common -dynamic 
> -DNDEBUG -g -fwrapv -O3 -Wall -arch x86_64 -g -g -DHAVE_LIBZ -DHAVE_LIBTIFF 
> -DPILLOW_VERSION="5.3.0" -I/usr/local/include/freetype2 
> -I/Applications/sage/local/var/tmp/sage/build/pillow-5.3.0.p0/src/src/libImaging
>  -I/usr/local/Cellar/jpeg/9d/include 
> -I/usr/local/Cellar/libtiff/4.1.0/include -I/Applications/sage/local/include 
> -I/Applications/Xcode.app/Contents/Developer/Platforms/MacOSX.platform/Developer/SDKs/MacOSX.sdk/usr/include
>  -I/opt/local/include -I/usr/local/include 
> -I/usr/local/Cellar/freetype/2.10.1/include 
> -I/Applications/sage/local/include 
> -I/Library/Frameworks/Python.framework/Versions/3.7/include/python3.7m -c 
> src/libImaging/Geometry.c -o 
> build/temp.macosx-10.9-x86_64-3.7/src/libImaging/Geometry.o
> gcc -Wno-unused-result -Wsign-compare -Wunreachable-code -fno-common -dynamic 
> -DNDEBUG -g -fwrapv -O3 -Wall -arch x86_64 -g -g -DHAVE_LIBZ -DHAVE_LIBTIFF 
> -DPILLOW_VERSION="5.3.0" -I/usr/local/include/freetype2 
> -I/Applications/sage/local/var/tmp/sage/build/pillow-5.3.0.p0/src/src/libImaging
>  -I/usr/local/Cellar/jpeg/9d/include 
> -I/usr/local/Cellar/libtiff/4.1.0/include -I/Applications/sage/local/include 
> -I/Applications/Xcode.app/Contents/Developer/Platforms/MacOSX.platform/Developer/SDKs/MacOSX.sdk/usr/include
>  -I/opt/local/include -I/usr/local/include 
> -I/usr/local/Cellar/freetype/2.10.1/include 
> -I/Applications/sage/local/include 
> -I/Library/Frameworks/Python.framework/Versions/3.7/include/python3.7m -c 
> src/libImaging/GetBBox.c -o 
> build/temp.macosx-10.9-x86_64-3.7/src/libImaging/GetBBox.o
> gcc -Wno-unused-result -Wsign-compare -Wunreachable-code -fno-common -dynamic 
> -DNDEBUG -g -fwrapv -O3 -Wall -arch x86_64 -g -g -DHAVE_LIBZ -DHAVE_LIBTIFF 
> -DPILLOW_VERSION="5.3.0" -I/usr/local/include/freetype2 
> -I/Applications/sage/local/var/tmp/sage/build/pillow-5.3.0.p0/src/src/libImaging
>  -I/usr/local/Cellar/jpeg/9d/include 
> -I/usr/local/Cellar/libtiff/4.1.0/include -I/Applications/sage/local/include 
> -I/Applications/Xcode.app/Contents/Developer/Platforms/MacOSX.platform/Developer/SDKs/MacOSX.sdk/usr/include
>  -I/opt/local/include -I/usr/local/include 
> -I/usr/local/Cellar/freetype/2.10.1/include 
> -I/Applications/sage/local/include 
> -I/Library/Frameworks/Python.framework/Versions/3.7/include/python3.7m -c 
> src/libImaging/GifDecode.c -o 
> build/temp.macosx-10.9-x86_64-3.7/src/libImaging/GifDecode.o
> gcc -Wno-unused-result -Wsign-compare -Wunreachable-code -fno-common -dynamic 
> -DNDEBUG -g -fwrapv -O3 -Wall -arch x86_64 -g -g -DHAVE_LIBZ -DHAVE_LIBTIFF 
> -DPILLOW_VERSION="5.3.0" -I/usr/local/include/freetype2 
> -I/Applications/sage/local/var/tmp/sage/build/pillow-5.3.0.p0/src/src/libImaging
>  -I/usr/local/Cellar/jpeg/9d/include 
> -I/usr/local/Cellar/libtiff/4.1.0/include -I/Applications/sage/local/include 
> -I/Applications/Xcode.app/Contents/Developer/Platforms/MacOSX.platform/Developer/SDKs/MacOSX.sdk/usr/include
>  -I/opt/local/include -I/usr/local/include 
> -I/usr/local/Cellar/freetype/2.10.1/include 
> -I/Applications/sage/local/include 
> -I/Library/Frameworks/Python.framework/Versions/3.7/include/python3.7m -c 
> src/libImaging/GifEncode.c -o 
> build/temp.macosx-10.9-x86_64-3.7/src/libImaging/GifEncode.o
> gcc -Wno-unused-result -Wsign-compare -Wunreachable-code -fno-common -dynamic 
> -DNDEBUG -g -fwrapv -O3 -Wall -arch x86_64 -g -g -DHAVE_LIBZ -DHAVE_LIBTIFF 
> -DPILLOW_VERSION="5.3.0" -I/usr/local/include/freetype2 
> -I/Applications/sage/local/var/tmp/sage/build/pillow-5.3.0.p0/src/src/libImaging
>  -I/usr/local/Cellar/jpeg/9d/include 
> -I/usr/local/Cellar/libtiff/4.1.0/include -I/Applications/sage/local/include 
> -I/Applications/Xcode.app/Contents/Developer/Platforms/MacOSX.platform/Developer/SDKs/MacOSX.sdk/usr/include
>  -I/opt/local/include -I/usr/local/include 
> -I/usr/local/Cellar/freetype/2.10.1/include 
> -I/Applications/sage/local/include 
> -I/Library/Frameworks/Python.framework/Versions/3.7/include/python3.7m -c 
> src/libImaging/HexDecode.c -o 
> build/temp.macosx-10.9-x86_64-3.7/src/libImaging/HexDecode.o
> gcc -Wno-unused-result -Wsign-compare -Wunreachable-code -fno-common -dynamic 
> -DNDEBUG -g -fwrapv -O3 -Wall -arch x86_64 -g -g -DHAVE_LIBZ -DHAVE_LIBTIFF 
> -DPILLOW_VERSION="5.3.0" -I/usr/local/include/freetype2 
> -I/Applications/sage/local/var/tmp/sage/build/pillow-5.3.0.p0/src/src/libImaging
>  -I/usr/local/Cellar/jpeg/9d/include 
> -I/usr/local/Cellar/libtiff/4.1.0/include -I/Applications/sage/local/include 
> -I/Applications/Xcode.app/Contents/Developer/Platforms/MacOSX.platform/Developer/SDKs/MacOSX.sdk/usr/include
>  -I/opt/local/include -I/usr/local/include 
> -I/usr/local/Cellar/freetype/2.10.1/include 
> -I/Applications/sage/local/include 
> -I/Library/Frameworks/Python.framework/Versions/3.7/include/python3.7m -c 
> src/libImaging/Histo.c -o 
> build/temp.macosx-10.9-x86_64-3.7/src/libImaging/Histo.o
> gcc -Wno-unused-result -Wsign-compare -Wunreachable-code -fno-common -dynamic 
> -DNDEBUG -g -fwrapv -O3 -Wall -arch x86_64 -g -g -DHAVE_LIBZ -DHAVE_LIBTIFF 
> -DPILLOW_VERSION="5.3.0" -I/usr/local/include/freetype2 
> -I/Applications/sage/local/var/tmp/sage/build/pillow-5.3.0.p0/src/src/libImaging
>  -I/usr/local/Cellar/jpeg/9d/include 
> -I/usr/local/Cellar/libtiff/4.1.0/include -I/Applications/sage/local/include 
> -I/Applications/Xcode.app/Contents/Developer/Platforms/MacOSX.platform/Developer/SDKs/MacOSX.sdk/usr/include
>  -I/opt/local/include -I/usr/local/include 
> -I/usr/local/Cellar/freetype/2.10.1/include 
> -I/Applications/sage/local/include 
> -I/Library/Frameworks/Python.framework/Versions/3.7/include/python3.7m -c 
> src/libImaging/JpegDecode.c -o 
> build/temp.macosx-10.9-x86_64-3.7/src/libImaging/JpegDecode.o
> gcc -Wno-unused-result -Wsign-compare -Wunreachable-code -fno-common -dynamic 
> -DNDEBUG -g -fwrapv -O3 -Wall -arch x86_64 -g -g -DHAVE_LIBZ -DHAVE_LIBTIFF 
> -DPILLOW_VERSION="5.3.0" -I/usr/local/include/freetype2 
> -I/Applications/sage/local/var/tmp/sage/build/pillow-5.3.0.p0/src/src/libImaging
>  -I/usr/local/Cellar/jpeg/9d/include 
> -I/usr/local/Cellar/libtiff/4.1.0/include -I/Applications/sage/local/include 
> -I/Applications/Xcode.app/Contents/Developer/Platforms/MacOSX.platform/Developer/SDKs/MacOSX.sdk/usr/include
>  -I/opt/local/include -I/usr/local/include 
> -I/usr/local/Cellar/freetype/2.10.1/include 
> -I/Applications/sage/local/include 
> -I/Library/Frameworks/Python.framework/Versions/3.7/include/python3.7m -c 
> src/libImaging/JpegEncode.c -o 
> build/temp.macosx-10.9-x86_64-3.7/src/libImaging/JpegEncode.o
> gcc -Wno-unused-result -Wsign-compare -Wunreachable-code -fno-common -dynamic 
> -DNDEBUG -g -fwrapv -O3 -Wall -arch x86_64 -g -g -DHAVE_LIBZ -DHAVE_LIBTIFF 
> -DPILLOW_VERSION="5.3.0" -I/usr/local/include/freetype2 
> -I/Applications/sage/local/var/tmp/sage/build/pillow-5.3.0.p0/src/src/libImaging
>  -I/usr/local/Cellar/jpeg/9d/include 
> -I/usr/local/Cellar/libtiff/4.1.0/include -I/Applications/sage/local/include 
> -I/Applications/Xcode.app/Contents/Developer/Platforms/MacOSX.platform/Developer/SDKs/MacOSX.sdk/usr/include
>  -I/opt/local/include -I/usr/local/include 
> -I/usr/local/Cellar/freetype/2.10.1/include 
> -I/Applications/sage/local/include 
> -I/Library/Frameworks/Python.framework/Versions/3.7/include/python3.7m -c 
> src/libImaging/Matrix.c -o 
> build/temp.macosx-10.9-x86_64-3.7/src/libImaging/Matrix.o
> gcc -Wno-unused-result -Wsign-compare -Wunreachable-code -fno-common -dynamic 
> -DNDEBUG -g -fwrapv -O3 -Wall -arch x86_64 -g -g -DHAVE_LIBZ -DHAVE_LIBTIFF 
> -DPILLOW_VERSION="5.3.0" -I/usr/local/include/freetype2 
> -I/Applications/sage/local/var/tmp/sage/build/pillow-5.3.0.p0/src/src/libImaging
>  -I/usr/local/Cellar/jpeg/9d/include 
> -I/usr/local/Cellar/libtiff/4.1.0/include -I/Applications/sage/local/include 
> -I/Applications/Xcode.app/Contents/Developer/Platforms/MacOSX.platform/Developer/SDKs/MacOSX.sdk/usr/include
>  -I/opt/local/include -I/usr/local/include 
> -I/usr/local/Cellar/freetype/2.10.1/include 
> -I/Applications/sage/local/include 
> -I/Library/Frameworks/Python.framework/Versions/3.7/include/python3.7m -c 
> src/libImaging/ModeFilter.c -o 
> build/temp.macosx-10.9-x86_64-3.7/src/libImaging/ModeFilter.o
> gcc -Wno-unused-result -Wsign-compare -Wunreachable-code -fno-common -dynamic 
> -DNDEBUG -g -fwrapv -O3 -Wall -arch x86_64 -g -g -DHAVE_LIBZ -DHAVE_LIBTIFF 
> -DPILLOW_VERSION="5.3.0" -I/usr/local/include/freetype2 
> -I/Applications/sage/local/var/tmp/sage/build/pillow-5.3.0.p0/src/src/libImaging
>  -I/usr/local/Cellar/jpeg/9d/include 
> -I/usr/local/Cellar/libtiff/4.1.0/include -I/Applications/sage/local/include 
> -I/Applications/Xcode.app/Contents/Developer/Platforms/MacOSX.platform/Developer/SDKs/MacOSX.sdk/usr/include
>  -I/opt/local/include -I/usr/local/include 
> -I/usr/local/Cellar/freetype/2.10.1/include 
> -I/Applications/sage/local/include 
> -I/Library/Frameworks/Python.framework/Versions/3.7/include/python3.7m -c 
> src/libImaging/Negative.c -o 
> build/temp.macosx-10.9-x86_64-3.7/src/libImaging/Negative.o
> gcc -Wno-unused-result -Wsign-compare -Wunreachable-code -fno-common -dynamic 
> -DNDEBUG -g -fwrapv -O3 -Wall -arch x86_64 -g -g -DHAVE_LIBZ -DHAVE_LIBTIFF 
> -DPILLOW_VERSION="5.3.0" -I/usr/local/include/freetype2 
> -I/Applications/sage/local/var/tmp/sage/build/pillow-5.3.0.p0/src/src/libImaging
>  -I/usr/local/Cellar/jpeg/9d/include 
> -I/usr/local/Cellar/libtiff/4.1.0/include -I/Applications/sage/local/include 
> -I/Applications/Xcode.app/Contents/Developer/Platforms/MacOSX.platform/Developer/SDKs/MacOSX.sdk/usr/include
>  -I/opt/local/include -I/usr/local/include 
> -I/usr/local/Cellar/freetype/2.10.1/include 
> -I/Applications/sage/local/include 
> -I/Library/Frameworks/Python.framework/Versions/3.7/include/python3.7m -c 
> src/libImaging/Offset.c -o 
> build/temp.macosx-10.9-x86_64-3.7/src/libImaging/Offset.o
> gcc -Wno-unused-result -Wsign-compare -Wunreachable-code -fno-common -dynamic 
> -DNDEBUG -g -fwrapv -O3 -Wall -arch x86_64 -g -g -DHAVE_LIBZ -DHAVE_LIBTIFF 
> -DPILLOW_VERSION="5.3.0" -I/usr/local/include/freetype2 
> -I/Applications/sage/local/var/tmp/sage/build/pillow-5.3.0.p0/src/src/libImaging
>  -I/usr/local/Cellar/jpeg/9d/include 
> -I/usr/local/Cellar/libtiff/4.1.0/include -I/Applications/sage/local/include 
> -I/Applications/Xcode.app/Contents/Developer/Platforms/MacOSX.platform/Developer/SDKs/MacOSX.sdk/usr/include
>  -I/opt/local/include -I/usr/local/include 
> -I/usr/local/Cellar/freetype/2.10.1/include 
> -I/Applications/sage/local/include 
> -I/Library/Frameworks/Python.framework/Versions/3.7/include/python3.7m -c 
> src/libImaging/Pack.c -o 
> build/temp.macosx-10.9-x86_64-3.7/src/libImaging/Pack.o
> gcc -Wno-unused-result -Wsign-compare -Wunreachable-code -fno-common -dynamic 
> -DNDEBUG -g -fwrapv -O3 -Wall -arch x86_64 -g -g -DHAVE_LIBZ -DHAVE_LIBTIFF 
> -DPILLOW_VERSION="5.3.0" -I/usr/local/include/freetype2 
> -I/Applications/sage/local/var/tmp/sage/build/pillow-5.3.0.p0/src/src/libImaging
>  -I/usr/local/Cellar/jpeg/9d/include 
> -I/usr/local/Cellar/libtiff/4.1.0/include -I/Applications/sage/local/include 
> -I/Applications/Xcode.app/Contents/Developer/Platforms/MacOSX.platform/Developer/SDKs/MacOSX.sdk/usr/include
>  -I/opt/local/include -I/usr/local/include 
> -I/usr/local/Cellar/freetype/2.10.1/include 
> -I/Applications/sage/local/include 
> -I/Library/Frameworks/Python.framework/Versions/3.7/include/python3.7m -c 
> src/libImaging/PackDecode.c -o 
> build/temp.macosx-10.9-x86_64-3.7/src/libImaging/PackDecode.o
> gcc -Wno-unused-result -Wsign-compare -Wunreachable-code -fno-common -dynamic 
> -DNDEBUG -g -fwrapv -O3 -Wall -arch x86_64 -g -g -DHAVE_LIBZ -DHAVE_LIBTIFF 
> -DPILLOW_VERSION="5.3.0" -I/usr/local/include/freetype2 
> -I/Applications/sage/local/var/tmp/sage/build/pillow-5.3.0.p0/src/src/libImaging
>  -I/usr/local/Cellar/jpeg/9d/include 
> -I/usr/local/Cellar/libtiff/4.1.0/include -I/Applications/sage/local/include 
> -I/Applications/Xcode.app/Contents/Developer/Platforms/MacOSX.platform/Developer/SDKs/MacOSX.sdk/usr/include
>  -I/opt/local/include -I/usr/local/include 
> -I/usr/local/Cellar/freetype/2.10.1/include 
> -I/Applications/sage/local/include 
> -I/Library/Frameworks/Python.framework/Versions/3.7/include/python3.7m -c 
> src/libImaging/Palette.c -o 
> build/temp.macosx-10.9-x86_64-3.7/src/libImaging/Palette.o
> gcc -Wno-unused-result -Wsign-compare -Wunreachable-code -fno-common -dynamic 
> -DNDEBUG -g -fwrapv -O3 -Wall -arch x86_64 -g -g -DHAVE_LIBZ -DHAVE_LIBTIFF 
> -DPILLOW_VERSION="5.3.0" -I/usr/local/include/freetype2 
> -I/Applications/sage/local/var/tmp/sage/build/pillow-5.3.0.p0/src/src/libImaging
>  -I/usr/local/Cellar/jpeg/9d/include 
> -I/usr/local/Cellar/libtiff/4.1.0/include -I/Applications/sage/local/include 
> -I/Applications/Xcode.app/Contents/Developer/Platforms/MacOSX.platform/Developer/SDKs/MacOSX.sdk/usr/include
>  -I/opt/local/include -I/usr/local/include 
> -I/usr/local/Cellar/freetype/2.10.1/include 
> -I/Applications/sage/local/include 
> -I/Library/Frameworks/Python.framework/Versions/3.7/include/python3.7m -c 
> src/libImaging/Paste.c -o 
> build/temp.macosx-10.9-x86_64-3.7/src/libImaging/Paste.o
> gcc -Wno-unused-result -Wsign-compare -Wunreachable-code -fno-common -dynamic 
> -DNDEBUG -g -fwrapv -O3 -Wall -arch x86_64 -g -g -DHAVE_LIBZ -DHAVE_LIBTIFF 
> -DPILLOW_VERSION="5.3.0" -I/usr/local/include/freetype2 
> -I/Applications/sage/local/var/tmp/sage/build/pillow-5.3.0.p0/src/src/libImaging
>  -I/usr/local/Cellar/jpeg/9d/include 
> -I/usr/local/Cellar/libtiff/4.1.0/include -I/Applications/sage/local/include 
> -I/Applications/Xcode.app/Contents/Developer/Platforms/MacOSX.platform/Developer/SDKs/MacOSX.sdk/usr/include
>  -I/opt/local/include -I/usr/local/include 
> -I/usr/local/Cellar/freetype/2.10.1/include 
> -I/Applications/sage/local/include 
> -I/Library/Frameworks/Python.framework/Versions/3.7/include/python3.7m -c 
> src/libImaging/Quant.c -o 
> build/temp.macosx-10.9-x86_64-3.7/src/libImaging/Quant.o
> gcc -Wno-unused-result -Wsign-compare -Wunreachable-code -fno-common -dynamic 
> -DNDEBUG -g -fwrapv -O3 -Wall -arch x86_64 -g -g -DHAVE_LIBZ -DHAVE_LIBTIFF 
> -DPILLOW_VERSION="5.3.0" -I/usr/local/include/freetype2 
> -I/Applications/sage/local/var/tmp/sage/build/pillow-5.3.0.p0/src/src/libImaging
>  -I/usr/local/Cellar/jpeg/9d/include 
> -I/usr/local/Cellar/libtiff/4.1.0/include -I/Applications/sage/local/include 
> -I/Applications/Xcode.app/Contents/Developer/Platforms/MacOSX.platform/Developer/SDKs/MacOSX.sdk/usr/include
>  -I/opt/local/include -I/usr/local/include 
> -I/usr/local/Cellar/freetype/2.10.1/include 
> -I/Applications/sage/local/include 
> -I/Library/Frameworks/Python.framework/Versions/3.7/include/python3.7m -c 
> src/libImaging/QuantOctree.c -o 
> build/temp.macosx-10.9-x86_64-3.7/src/libImaging/QuantOctree.o
> src/libImaging/QuantOctree.c:173:19: warning: comparison of integers of 
> different signs: 'long' and 'unsigned long' [-Wsign-compare]
>    if (cube->size > LONG_MAX / sizeof(struct _ColorBucket)) {
>        ~~~~~~~~~~ ^ ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
> src/libImaging/QuantOctree.c:208:20: warning: comparison of integers of 
> different signs: 'unsigned int' and 'int' [-Wsign-compare]
>    if (cube->rBits > rBits) {
>        ~~~~~~~~~~~ ^ ~~~~~
> src/libImaging/QuantOctree.c:215:20: warning: comparison of integers of 
> different signs: 'unsigned int' and 'int' [-Wsign-compare]
>    if (cube->gBits > gBits) {
>        ~~~~~~~~~~~ ^ ~~~~~
> src/libImaging/QuantOctree.c:222:20: warning: comparison of integers of 
> different signs: 'unsigned int' and 'int' [-Wsign-compare]
>    if (cube->bBits > bBits) {
>        ~~~~~~~~~~~ ^ ~~~~~
> src/libImaging/QuantOctree.c:229:20: warning: comparison of integers of 
> different signs: 'unsigned int' and 'int' [-Wsign-compare]
>    if (cube->aBits > aBits) {
>        ~~~~~~~~~~~ ^ ~~~~~
> src/libImaging/QuantOctree.c:308:30: warning: comparison of integers of 
> different signs: 'long' and 'unsigned long' [-Wsign-compare]
>        (nBucketsA+nBucketsB) > LONG_MAX / sizeof(struct _ColorBucket)) {
>         ~~~~~~~~~~~~~~~~~~~  ^ ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
> 6 warnings generated.
> gcc -Wno-unused-result -Wsign-compare -Wunreachable-code -fno-common -dynamic 
> -DNDEBUG -g -fwrapv -O3 -Wall -arch x86_64 -g -g -DHAVE_LIBZ -DHAVE_LIBTIFF 
> -DPILLOW_VERSION="5.3.0" -I/usr/local/include/freetype2 
> -I/Applications/sage/local/var/tmp/sage/build/pillow-5.3.0.p0/src/src/libImaging
>  -I/usr/local/Cellar/jpeg/9d/include 
> -I/usr/local/Cellar/libtiff/4.1.0/include -I/Applications/sage/local/include 
> -I/Applications/Xcode.app/Contents/Developer/Platforms/MacOSX.platform/Developer/SDKs/MacOSX.sdk/usr/include
>  -I/opt/local/include -I/usr/local/include 
> -I/usr/local/Cellar/freetype/2.10.1/include 
> -I/Applications/sage/local/include 
> -I/Library/Frameworks/Python.framework/Versions/3.7/include/python3.7m -c 
> src/libImaging/QuantHash.c -o 
> build/temp.macosx-10.9-x86_64-3.7/src/libImaging/QuantHash.o
> gcc -Wno-unused-result -Wsign-compare -Wunreachable-code -fno-common -dynamic 
> -DNDEBUG -g -fwrapv -O3 -Wall -arch x86_64 -g -g -DHAVE_LIBZ -DHAVE_LIBTIFF 
> -DPILLOW_VERSION="5.3.0" -I/usr/local/include/freetype2 
> -I/Applications/sage/local/var/tmp/sage/build/pillow-5.3.0.p0/src/src/libImaging
>  -I/usr/local/Cellar/jpeg/9d/include 
> -I/usr/local/Cellar/libtiff/4.1.0/include -I/Applications/sage/local/include 
> -I/Applications/Xcode.app/Contents/Developer/Platforms/MacOSX.platform/Developer/SDKs/MacOSX.sdk/usr/include
>  -I/opt/local/include -I/usr/local/include 
> -I/usr/local/Cellar/freetype/2.10.1/include 
> -I/Applications/sage/local/include 
> -I/Library/Frameworks/Python.framework/Versions/3.7/include/python3.7m -c 
> src/libImaging/QuantHeap.c -o 
> build/temp.macosx-10.9-x86_64-3.7/src/libImaging/QuantHeap.o
> src/libImaging/QuantHeap.c:51:16: warning: comparison of integers of 
> different signs: 'int' and 'unsigned long' [-Wsign-compare]
>    if (newsize > INT_MAX / sizeof(void *)){
>        ~~~~~~~ ^ ~~~~~~~~~~~~~~~~~~~~~~~~
> 1 warning generated.
> gcc -Wno-unused-result -Wsign-compare -Wunreachable-code -fno-common -dynamic 
> -DNDEBUG -g -fwrapv -O3 -Wall -arch x86_64 -g -g -DHAVE_LIBZ -DHAVE_LIBTIFF 
> -DPILLOW_VERSION="5.3.0" -I/usr/local/include/freetype2 
> -I/Applications/sage/local/var/tmp/sage/build/pillow-5.3.0.p0/src/src/libImaging
>  -I/usr/local/Cellar/jpeg/9d/include 
> -I/usr/local/Cellar/libtiff/4.1.0/include -I/Applications/sage/local/include 
> -I/Applications/Xcode.app/Contents/Developer/Platforms/MacOSX.platform/Developer/SDKs/MacOSX.sdk/usr/include
>  -I/opt/local/include -I/usr/local/include 
> -I/usr/local/Cellar/freetype/2.10.1/include 
> -I/Applications/sage/local/include 
> -I/Library/Frameworks/Python.framework/Versions/3.7/include/python3.7m -c 
> src/libImaging/PcdDecode.c -o 
> build/temp.macosx-10.9-x86_64-3.7/src/libImaging/PcdDecode.o
> gcc -Wno-unused-result -Wsign-compare -Wunreachable-code -fno-common -dynamic 
> -DNDEBUG -g -fwrapv -O3 -Wall -arch x86_64 -g -g -DHAVE_LIBZ -DHAVE_LIBTIFF 
> -DPILLOW_VERSION="5.3.0" -I/usr/local/include/freetype2 
> -I/Applications/sage/local/var/tmp/sage/build/pillow-5.3.0.p0/src/src/libImaging
>  -I/usr/local/Cellar/jpeg/9d/include 
> -I/usr/local/Cellar/libtiff/4.1.0/include -I/Applications/sage/local/include 
> -I/Applications/Xcode.app/Contents/Developer/Platforms/MacOSX.platform/Developer/SDKs/MacOSX.sdk/usr/include
>  -I/opt/local/include -I/usr/local/include 
> -I/usr/local/Cellar/freetype/2.10.1/include 
> -I/Applications/sage/local/include 
> -I/Library/Frameworks/Python.framework/Versions/3.7/include/python3.7m -c 
> src/libImaging/PcxDecode.c -o 
> build/temp.macosx-10.9-x86_64-3.7/src/libImaging/PcxDecode.o
> gcc -Wno-unused-result -Wsign-compare -Wunreachable-code -fno-common -dynamic 
> -DNDEBUG -g -fwrapv -O3 -Wall -arch x86_64 -g -g -DHAVE_LIBZ -DHAVE_LIBTIFF 
> -DPILLOW_VERSION="5.3.0" -I/usr/local/include/freetype2 
> -I/Applications/sage/local/var/tmp/sage/build/pillow-5.3.0.p0/src/src/libImaging
>  -I/usr/local/Cellar/jpeg/9d/include 
> -I/usr/local/Cellar/libtiff/4.1.0/include -I/Applications/sage/local/include 
> -I/Applications/Xcode.app/Contents/Developer/Platforms/MacOSX.platform/Developer/SDKs/MacOSX.sdk/usr/include
>  -I/opt/local/include -I/usr/local/include 
> -I/usr/local/Cellar/freetype/2.10.1/include 
> -I/Applications/sage/local/include 
> -I/Library/Frameworks/Python.framework/Versions/3.7/include/python3.7m -c 
> src/libImaging/PcxEncode.c -o 
> build/temp.macosx-10.9-x86_64-3.7/src/libImaging/PcxEncode.o
> gcc -Wno-unused-result -Wsign-compare -Wunreachable-code -fno-common -dynamic 
> -DNDEBUG -g -fwrapv -O3 -Wall -arch x86_64 -g -g -DHAVE_LIBZ -DHAVE_LIBTIFF 
> -DPILLOW_VERSION="5.3.0" -I/usr/local/include/freetype2 
> -I/Applications/sage/local/var/tmp/sage/build/pillow-5.3.0.p0/src/src/libImaging
>  -I/usr/local/Cellar/jpeg/9d/include 
> -I/usr/local/Cellar/libtiff/4.1.0/include -I/Applications/sage/local/include 
> -I/Applications/Xcode.app/Contents/Developer/Platforms/MacOSX.platform/Developer/SDKs/MacOSX.sdk/usr/include
>  -I/opt/local/include -I/usr/local/include 
> -I/usr/local/Cellar/freetype/2.10.1/include 
> -I/Applications/sage/local/include 
> -I/Library/Frameworks/Python.framework/Versions/3.7/include/python3.7m -c 
> src/libImaging/Point.c -o 
> build/temp.macosx-10.9-x86_64-3.7/src/libImaging/Point.o
> gcc -Wno-unused-result -Wsign-compare -Wunreachable-code -fno-common -dynamic 
> -DNDEBUG -g -fwrapv -O3 -Wall -arch x86_64 -g -g -DHAVE_LIBZ -DHAVE_LIBTIFF 
> -DPILLOW_VERSION="5.3.0" -I/usr/local/include/freetype2 
> -I/Applications/sage/local/var/tmp/sage/build/pillow-5.3.0.p0/src/src/libImaging
>  -I/usr/local/Cellar/jpeg/9d/include 
> -I/usr/local/Cellar/libtiff/4.1.0/include -I/Applications/sage/local/include 
> -I/Applications/Xcode.app/Contents/Developer/Platforms/MacOSX.platform/Developer/SDKs/MacOSX.sdk/usr/include
>  -I/opt/local/include -I/usr/local/include 
> -I/usr/local/Cellar/freetype/2.10.1/include 
> -I/Applications/sage/local/include 
> -I/Library/Frameworks/Python.framework/Versions/3.7/include/python3.7m -c 
> src/libImaging/RankFilter.c -o 
> build/temp.macosx-10.9-x86_64-3.7/src/libImaging/RankFilter.o
> src/libImaging/RankFilter.c:65:14: warning: comparison of integers of 
> different signs: 'int' and 'unsigned long' [-Wsign-compare]
>         size > INT_MAX / (size * sizeof(FLOAT32))) {
>         ~~~~ ^ ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
> 1 warning generated.
> gcc -Wno-unused-result -Wsign-compare -Wunreachable-code -fno-common -dynamic 
> -DNDEBUG -g -fwrapv -O3 -Wall -arch x86_64 -g -g -DHAVE_LIBZ -DHAVE_LIBTIFF 
> -DPILLOW_VERSION="5.3.0" -I/usr/local/include/freetype2 
> -I/Applications/sage/local/var/tmp/sage/build/pillow-5.3.0.p0/src/src/libImaging
>  -I/usr/local/Cellar/jpeg/9d/include 
> -I/usr/local/Cellar/libtiff/4.1.0/include -I/Applications/sage/local/include 
> -I/Applications/Xcode.app/Contents/Developer/Platforms/MacOSX.platform/Developer/SDKs/MacOSX.sdk/usr/include
>  -I/opt/local/include -I/usr/local/include 
> -I/usr/local/Cellar/freetype/2.10.1/include 
> -I/Applications/sage/local/include 
> -I/Library/Frameworks/Python.framework/Versions/3.7/include/python3.7m -c 
> src/libImaging/RawDecode.c -o 
> build/temp.macosx-10.9-x86_64-3.7/src/libImaging/RawDecode.o
> gcc -Wno-unused-result -Wsign-compare -Wunreachable-code -fno-common -dynamic 
> -DNDEBUG -g -fwrapv -O3 -Wall -arch x86_64 -g -g -DHAVE_LIBZ -DHAVE_LIBTIFF 
> -DPILLOW_VERSION="5.3.0" -I/usr/local/include/freetype2 
> -I/Applications/sage/local/var/tmp/sage/build/pillow-5.3.0.p0/src/src/libImaging
>  -I/usr/local/Cellar/jpeg/9d/include 
> -I/usr/local/Cellar/libtiff/4.1.0/include -I/Applications/sage/local/include 
> -I/Applications/Xcode.app/Contents/Developer/Platforms/MacOSX.platform/Developer/SDKs/MacOSX.sdk/usr/include
>  -I/opt/local/include -I/usr/local/include 
> -I/usr/local/Cellar/freetype/2.10.1/include 
> -I/Applications/sage/local/include 
> -I/Library/Frameworks/Python.framework/Versions/3.7/include/python3.7m -c 
> src/libImaging/RawEncode.c -o 
> build/temp.macosx-10.9-x86_64-3.7/src/libImaging/RawEncode.o
> gcc -Wno-unused-result -Wsign-compare -Wunreachable-code -fno-common -dynamic 
> -DNDEBUG -g -fwrapv -O3 -Wall -arch x86_64 -g -g -DHAVE_LIBZ -DHAVE_LIBTIFF 
> -DPILLOW_VERSION="5.3.0" -I/usr/local/include/freetype2 
> -I/Applications/sage/local/var/tmp/sage/build/pillow-5.3.0.p0/src/src/libImaging
>  -I/usr/local/Cellar/jpeg/9d/include 
> -I/usr/local/Cellar/libtiff/4.1.0/include -I/Applications/sage/local/include 
> -I/Applications/Xcode.app/Contents/Developer/Platforms/MacOSX.platform/Developer/SDKs/MacOSX.sdk/usr/include
>  -I/opt/local/include -I/usr/local/include 
> -I/usr/local/Cellar/freetype/2.10.1/include 
> -I/Applications/sage/local/include 
> -I/Library/Frameworks/Python.framework/Versions/3.7/include/python3.7m -c 
> src/libImaging/Storage.c -o 
> build/temp.macosx-10.9-x86_64-3.7/src/libImaging/Storage.o
> gcc -Wno-unused-result -Wsign-compare -Wunreachable-code -fno-common -dynamic 
> -DNDEBUG -g -fwrapv -O3 -Wall -arch x86_64 -g -g -DHAVE_LIBZ -DHAVE_LIBTIFF 
> -DPILLOW_VERSION="5.3.0" -I/usr/local/include/freetype2 
> -I/Applications/sage/local/var/tmp/sage/build/pillow-5.3.0.p0/src/src/libImaging
>  -I/usr/local/Cellar/jpeg/9d/include 
> -I/usr/local/Cellar/libtiff/4.1.0/include -I/Applications/sage/local/include 
> -I/Applications/Xcode.app/Contents/Developer/Platforms/MacOSX.platform/Developer/SDKs/MacOSX.sdk/usr/include
>  -I/opt/local/include -I/usr/local/include 
> -I/usr/local/Cellar/freetype/2.10.1/include 
> -I/Applications/sage/local/include 
> -I/Library/Frameworks/Python.framework/Versions/3.7/include/python3.7m -c 
> src/libImaging/SgiRleDecode.c -o 
> build/temp.macosx-10.9-x86_64-3.7/src/libImaging/SgiRleDecode.o
> gcc -Wno-unused-result -Wsign-compare -Wunreachable-code -fno-common -dynamic 
> -DNDEBUG -g -fwrapv -O3 -Wall -arch x86_64 -g -g -DHAVE_LIBZ -DHAVE_LIBTIFF 
> -DPILLOW_VERSION="5.3.0" -I/usr/local/include/freetype2 
> -I/Applications/sage/local/var/tmp/sage/build/pillow-5.3.0.p0/src/src/libImaging
>  -I/usr/local/Cellar/jpeg/9d/include 
> -I/usr/local/Cellar/libtiff/4.1.0/include -I/Applications/sage/local/include 
> -I/Applications/Xcode.app/Contents/Developer/Platforms/MacOSX.platform/Developer/SDKs/MacOSX.sdk/usr/include
>  -I/opt/local/include -I/usr/local/include 
> -I/usr/local/Cellar/freetype/2.10.1/include 
> -I/Applications/sage/local/include 
> -I/Library/Frameworks/Python.framework/Versions/3.7/include/python3.7m -c 
> src/libImaging/SunRleDecode.c -o 
> build/temp.macosx-10.9-x86_64-3.7/src/libImaging/SunRleDecode.o
> gcc -Wno-unused-result -Wsign-compare -Wunreachable-code -fno-common -dynamic 
> -DNDEBUG -g -fwrapv -O3 -Wall -arch x86_64 -g -g -DHAVE_LIBZ -DHAVE_LIBTIFF 
> -DPILLOW_VERSION="5.3.0" -I/usr/local/include/freetype2 
> -I/Applications/sage/local/var/tmp/sage/build/pillow-5.3.0.p0/src/src/libImaging
>  -I/usr/local/Cellar/jpeg/9d/include 
> -I/usr/local/Cellar/libtiff/4.1.0/include -I/Applications/sage/local/include 
> -I/Applications/Xcode.app/Contents/Developer/Platforms/MacOSX.platform/Developer/SDKs/MacOSX.sdk/usr/include
>  -I/opt/local/include -I/usr/local/include 
> -I/usr/local/Cellar/freetype/2.10.1/include 
> -I/Applications/sage/local/include 
> -I/Library/Frameworks/Python.framework/Versions/3.7/include/python3.7m -c 
> src/libImaging/TgaRleDecode.c -o 
> build/temp.macosx-10.9-x86_64-3.7/src/libImaging/TgaRleDecode.o
> gcc -Wno-unused-result -Wsign-compare -Wunreachable-code -fno-common -dynamic 
> -DNDEBUG -g -fwrapv -O3 -Wall -arch x86_64 -g -g -DHAVE_LIBZ -DHAVE_LIBTIFF 
> -DPILLOW_VERSION="5.3.0" -I/usr/local/include/freetype2 
> -I/Applications/sage/local/var/tmp/sage/build/pillow-5.3.0.p0/src/src/libImaging
>  -I/usr/local/Cellar/jpeg/9d/include 
> -I/usr/local/Cellar/libtiff/4.1.0/include -I/Applications/sage/local/include 
> -I/Applications/Xcode.app/Contents/Developer/Platforms/MacOSX.platform/Developer/SDKs/MacOSX.sdk/usr/include
>  -I/opt/local/include -I/usr/local/include 
> -I/usr/local/Cellar/freetype/2.10.1/include 
> -I/Applications/sage/local/include 
> -I/Library/Frameworks/Python.framework/Versions/3.7/include/python3.7m -c 
> src/libImaging/TgaRleEncode.c -o 
> build/temp.macosx-10.9-x86_64-3.7/src/libImaging/TgaRleEncode.o
> gcc -Wno-unused-result -Wsign-compare -Wunreachable-code -fno-common -dynamic 
> -DNDEBUG -g -fwrapv -O3 -Wall -arch x86_64 -g -g -DHAVE_LIBZ -DHAVE_LIBTIFF 
> -DPILLOW_VERSION="5.3.0" -I/usr/local/include/freetype2 
> -I/Applications/sage/local/var/tmp/sage/build/pillow-5.3.0.p0/src/src/libImaging
>  -I/usr/local/Cellar/jpeg/9d/include 
> -I/usr/local/Cellar/libtiff/4.1.0/include -I/Applications/sage/local/include 
> -I/Applications/Xcode.app/Contents/Developer/Platforms/MacOSX.platform/Developer/SDKs/MacOSX.sdk/usr/include
>  -I/opt/local/include -I/usr/local/include 
> -I/usr/local/Cellar/freetype/2.10.1/include 
> -I/Applications/sage/local/include 
> -I/Library/Frameworks/Python.framework/Versions/3.7/include/python3.7m -c 
> src/libImaging/Unpack.c -o 
> build/temp.macosx-10.9-x86_64-3.7/src/libImaging/Unpack.o
> gcc -Wno-unused-result -Wsign-compare -Wunreachable-code -fno-common -dynamic 
> -DNDEBUG -g -fwrapv -O3 -Wall -arch x86_64 -g -g -DHAVE_LIBZ -DHAVE_LIBTIFF 
> -DPILLOW_VERSION="5.3.0" -I/usr/local/include/freetype2 
> -I/Applications/sage/local/var/tmp/sage/build/pillow-5.3.0.p0/src/src/libImaging
>  -I/usr/local/Cellar/jpeg/9d/include 
> -I/usr/local/Cellar/libtiff/4.1.0/include -I/Applications/sage/local/include 
> -I/Applications/Xcode.app/Contents/Developer/Platforms/MacOSX.platform/Developer/SDKs/MacOSX.sdk/usr/include
>  -I/opt/local/include -I/usr/local/include 
> -I/usr/local/Cellar/freetype/2.10.1/include 
> -I/Applications/sage/local/include 
> -I/Library/Frameworks/Python.framework/Versions/3.7/include/python3.7m -c 
> src/libImaging/UnpackYCC.c -o 
> build/temp.macosx-10.9-x86_64-3.7/src/libImaging/UnpackYCC.o
> gcc -Wno-unused-result -Wsign-compare -Wunreachable-code -fno-common -dynamic 
> -DNDEBUG -g -fwrapv -O3 -Wall -arch x86_64 -g -g -DHAVE_LIBZ -DHAVE_LIBTIFF 
> -DPILLOW_VERSION="5.3.0" -I/usr/local/include/freetype2 
> -I/Applications/sage/local/var/tmp/sage/build/pillow-5.3.0.p0/src/src/libImaging
>  -I/usr/local/Cellar/jpeg/9d/include 
> -I/usr/local/Cellar/libtiff/4.1.0/include -I/Applications/sage/local/include 
> -I/Applications/Xcode.app/Contents/Developer/Platforms/MacOSX.platform/Developer/SDKs/MacOSX.sdk/usr/include
>  -I/opt/local/include -I/usr/local/include 
> -I/usr/local/Cellar/freetype/2.10.1/include 
> -I/Applications/sage/local/include 
> -I/Library/Frameworks/Python.framework/Versions/3.7/include/python3.7m -c 
> src/libImaging/UnsharpMask.c -o 
> build/temp.macosx-10.9-x86_64-3.7/src/libImaging/UnsharpMask.o
> gcc -Wno-unused-result -Wsign-compare -Wunreachable-code -fno-common -dynamic 
> -DNDEBUG -g -fwrapv -O3 -Wall -arch x86_64 -g -g -DHAVE_LIBZ -DHAVE_LIBTIFF 
> -DPILLOW_VERSION="5.3.0" -I/usr/local/include/freetype2 
> -I/Applications/sage/local/var/tmp/sage/build/pillow-5.3.0.p0/src/src/libImaging
>  -I/usr/local/Cellar/jpeg/9d/include 
> -I/usr/local/Cellar/libtiff/4.1.0/include -I/Applications/sage/local/include 
> -I/Applications/Xcode.app/Contents/Developer/Platforms/MacOSX.platform/Developer/SDKs/MacOSX.sdk/usr/include
>  -I/opt/local/include -I/usr/local/include 
> -I/usr/local/Cellar/freetype/2.10.1/include 
> -I/Applications/sage/local/include 
> -I/Library/Frameworks/Python.framework/Versions/3.7/include/python3.7m -c 
> src/libImaging/XbmDecode.c -o 
> build/temp.macosx-10.9-x86_64-3.7/src/libImaging/XbmDecode.o
> gcc -Wno-unused-result -Wsign-compare -Wunreachable-code -fno-common -dynamic 
> -DNDEBUG -g -fwrapv -O3 -Wall -arch x86_64 -g -g -DHAVE_LIBZ -DHAVE_LIBTIFF 
> -DPILLOW_VERSION="5.3.0" -I/usr/local/include/freetype2 
> -I/Applications/sage/local/var/tmp/sage/build/pillow-5.3.0.p0/src/src/libImaging
>  -I/usr/local/Cellar/jpeg/9d/include 
> -I/usr/local/Cellar/libtiff/4.1.0/include -I/Applications/sage/local/include 
> -I/Applications/Xcode.app/Contents/Developer/Platforms/MacOSX.platform/Developer/SDKs/MacOSX.sdk/usr/include
>  -I/opt/local/include -I/usr/local/include 
> -I/usr/local/Cellar/freetype/2.10.1/include 
> -I/Applications/sage/local/include 
> -I/Library/Frameworks/Python.framework/Versions/3.7/include/python3.7m -c 
> src/libImaging/XbmEncode.c -o 
> build/temp.macosx-10.9-x86_64-3.7/src/libImaging/XbmEncode.o
> gcc -Wno-unused-result -Wsign-compare -Wunreachable-code -fno-common -dynamic 
> -DNDEBUG -g -fwrapv -O3 -Wall -arch x86_64 -g -g -DHAVE_LIBZ -DHAVE_LIBTIFF 
> -DPILLOW_VERSION="5.3.0" -I/usr/local/include/freetype2 
> -I/Applications/sage/local/var/tmp/sage/build/pillow-5.3.0.p0/src/src/libImaging
>  -I/usr/local/Cellar/jpeg/9d/include 
> -I/usr/local/Cellar/libtiff/4.1.0/include -I/Applications/sage/local/include 
> -I/Applications/Xcode.app/Contents/Developer/Platforms/MacOSX.platform/Developer/SDKs/MacOSX.sdk/usr/include
>  -I/opt/local/include -I/usr/local/include 
> -I/usr/local/Cellar/freetype/2.10.1/include 
> -I/Applications/sage/local/include 
> -I/Library/Frameworks/Python.framework/Versions/3.7/include/python3.7m -c 
> src/libImaging/ZipDecode.c -o 
> build/temp.macosx-10.9-x86_64-3.7/src/libImaging/ZipDecode.o
> gcc -Wno-unused-result -Wsign-compare -Wunreachable-code -fno-common -dynamic 
> -DNDEBUG -g -fwrapv -O3 -Wall -arch x86_64 -g -g -DHAVE_LIBZ -DHAVE_LIBTIFF 
> -DPILLOW_VERSION="5.3.0" -I/usr/local/include/freetype2 
> -I/Applications/sage/local/var/tmp/sage/build/pillow-5.3.0.p0/src/src/libImaging
>  -I/usr/local/Cellar/jpeg/9d/include 
> -I/usr/local/Cellar/libtiff/4.1.0/include -I/Applications/sage/local/include 
> -I/Applications/Xcode.app/Contents/Developer/Platforms/MacOSX.platform/Developer/SDKs/MacOSX.sdk/usr/include
>  -I/opt/local/include -I/usr/local/include 
> -I/usr/local/Cellar/freetype/2.10.1/include 
> -I/Applications/sage/local/include 
> -I/Library/Frameworks/Python.framework/Versions/3.7/include/python3.7m -c 
> src/libImaging/ZipEncode.c -o 
> build/temp.macosx-10.9-x86_64-3.7/src/libImaging/ZipEncode.o
> gcc -Wno-unused-result -Wsign-compare -Wunreachable-code -fno-common -dynamic 
> -DNDEBUG -g -fwrapv -O3 -Wall -arch x86_64 -g -g -DHAVE_LIBZ -DHAVE_LIBTIFF 
> -DPILLOW_VERSION="5.3.0" -I/usr/local/include/freetype2 
> -I/Applications/sage/local/var/tmp/sage/build/pillow-5.3.0.p0/src/src/libImaging
>  -I/usr/local/Cellar/jpeg/9d/include 
> -I/usr/local/Cellar/libtiff/4.1.0/include -I/Applications/sage/local/include 
> -I/Applications/Xcode.app/Contents/Developer/Platforms/MacOSX.platform/Developer/SDKs/MacOSX.sdk/usr/include
>  -I/opt/local/include -I/usr/local/include 
> -I/usr/local/Cellar/freetype/2.10.1/include 
> -I/Applications/sage/local/include 
> -I/Library/Frameworks/Python.framework/Versions/3.7/include/python3.7m -c 
> src/libImaging/TiffDecode.c -o 
> build/temp.macosx-10.9-x86_64-3.7/src/libImaging/TiffDecode.o
> src/libImaging/TiffDecode.c:268:33: warning: comparison of integers of 
> different signs: 'uint32' (aka 'unsigned int') and 'int' [-Wsign-compare]
>         for (y = state->yoff; y < state->ysize; y += tileLength) {
>                               ~ ^ ~~~~~~~~~~~~
> src/libImaging/TiffDecode.c:269:37: warning: comparison of integers of 
> different signs: 'uint32' (aka 'unsigned int') and 'int' [-Wsign-compare]
>             for (x = state->xoff; x < state->xsize; x += tileWidth) {
>                                   ~ ^ ~~~~~~~~~~~~
> 2 warnings generated.
> gcc -Wno-unused-result -Wsign-compare -Wunreachable-code -fno-common -dynamic 
> -DNDEBUG -g -fwrapv -O3 -Wall -arch x86_64 -g -g -DHAVE_LIBZ -DHAVE_LIBTIFF 
> -DPILLOW_VERSION="5.3.0" -I/usr/local/include/freetype2 
> -I/Applications/sage/local/var/tmp/sage/build/pillow-5.3.0.p0/src/src/libImaging
>  -I/usr/local/Cellar/jpeg/9d/include 
> -I/usr/local/Cellar/libtiff/4.1.0/include -I/Applications/sage/local/include 
> -I/Applications/Xcode.app/Contents/Developer/Platforms/MacOSX.platform/Developer/SDKs/MacOSX.sdk/usr/include
>  -I/opt/local/include -I/usr/local/include 
> -I/usr/local/Cellar/freetype/2.10.1/include 
> -I/Applications/sage/local/include 
> -I/Library/Frameworks/Python.framework/Versions/3.7/include/python3.7m -c 
> src/libImaging/Jpeg2KDecode.c -o 
> build/temp.macosx-10.9-x86_64-3.7/src/libImaging/Jpeg2KDecode.o
> gcc -Wno-unused-result -Wsign-compare -Wunreachable-code -fno-common -dynamic 
> -DNDEBUG -g -fwrapv -O3 -Wall -arch x86_64 -g -g -DHAVE_LIBZ -DHAVE_LIBTIFF 
> -DPILLOW_VERSION="5.3.0" -I/usr/local/include/freetype2 
> -I/Applications/sage/local/var/tmp/sage/build/pillow-5.3.0.p0/src/src/libImaging
>  -I/usr/local/Cellar/jpeg/9d/include 
> -I/usr/local/Cellar/libtiff/4.1.0/include -I/Applications/sage/local/include 
> -I/Applications/Xcode.app/Contents/Developer/Platforms/MacOSX.platform/Developer/SDKs/MacOSX.sdk/usr/include
>  -I/opt/local/include -I/usr/local/include 
> -I/usr/local/Cellar/freetype/2.10.1/include 
> -I/Applications/sage/local/include 
> -I/Library/Frameworks/Python.framework/Versions/3.7/include/python3.7m -c 
> src/libImaging/codec_fd.c -o 
> build/temp.macosx-10.9-x86_64-3.7/src/libImaging/codec_fd.o
> gcc -bundle -undefined dynamic_lookup -arch x86_64 -g 
> -L/Applications/sage/local/lib -Wl,-rpath,/Applications/sage/local/lib -g 
> build/temp.macosx-10.9-x86_64-3.7/src/_imaging.o 
> build/temp.macosx-10.9-x86_64-3.7/src/decode.o 
> build/temp.macosx-10.9-x86_64-3.7/src/encode.o 
> build/temp.macosx-10.9-x86_64-3.7/src/map.o 
> build/temp.macosx-10.9-x86_64-3.7/src/display.o 
> build/temp.macosx-10.9-x86_64-3.7/src/outline.o 
> build/temp.macosx-10.9-x86_64-3.7/src/path.o 
> build/temp.macosx-10.9-x86_64-3.7/src/libImaging/Access.o 
> build/temp.macosx-10.9-x86_64-3.7/src/libImaging/AlphaComposite.o 
> build/temp.macosx-10.9-x86_64-3.7/src/libImaging/Resample.o 
> build/temp.macosx-10.9-x86_64-3.7/src/libImaging/Bands.o 
> build/temp.macosx-10.9-x86_64-3.7/src/libImaging/BcnDecode.o 
> build/temp.macosx-10.9-x86_64-3.7/src/libImaging/BitDecode.o 
> build/temp.macosx-10.9-x86_64-3.7/src/libImaging/Blend.o 
> build/temp.macosx-10.9-x86_64-3.7/src/libImaging/Chops.o 
> build/temp.macosx-10.9-x86_64-3.7/src/libImaging/ColorLUT.o 
> build/temp.macosx-10.9-x86_64-3.7/src/libImaging/Convert.o 
> build/temp.macosx-10.9-x86_64-3.7/src/libImaging/ConvertYCbCr.o 
> build/temp.macosx-10.9-x86_64-3.7/src/libImaging/Copy.o 
> build/temp.macosx-10.9-x86_64-3.7/src/libImaging/Crop.o 
> build/temp.macosx-10.9-x86_64-3.7/src/libImaging/Dib.o 
> build/temp.macosx-10.9-x86_64-3.7/src/libImaging/Draw.o 
> build/temp.macosx-10.9-x86_64-3.7/src/libImaging/Effects.o 
> build/temp.macosx-10.9-x86_64-3.7/src/libImaging/EpsEncode.o 
> build/temp.macosx-10.9-x86_64-3.7/src/libImaging/File.o 
> build/temp.macosx-10.9-x86_64-3.7/src/libImaging/Fill.o 
> build/temp.macosx-10.9-x86_64-3.7/src/libImaging/Filter.o 
> build/temp.macosx-10.9-x86_64-3.7/src/libImaging/FliDecode.o 
> build/temp.macosx-10.9-x86_64-3.7/src/libImaging/Geometry.o 
> build/temp.macosx-10.9-x86_64-3.7/src/libImaging/GetBBox.o 
> build/temp.macosx-10.9-x86_64-3.7/src/libImaging/GifDecode.o 
> build/temp.macosx-10.9-x86_64-3.7/src/libImaging/GifEncode.o 
> build/temp.macosx-10.9-x86_64-3.7/src/libImaging/HexDecode.o 
> build/temp.macosx-10.9-x86_64-3.7/src/libImaging/Histo.o 
> build/temp.macosx-10.9-x86_64-3.7/src/libImaging/JpegDecode.o 
> build/temp.macosx-10.9-x86_64-3.7/src/libImaging/JpegEncode.o 
> build/temp.macosx-10.9-x86_64-3.7/src/libImaging/Matrix.o 
> build/temp.macosx-10.9-x86_64-3.7/src/libImaging/ModeFilter.o 
> build/temp.macosx-10.9-x86_64-3.7/src/libImaging/Negative.o 
> build/temp.macosx-10.9-x86_64-3.7/src/libImaging/Offset.o 
> build/temp.macosx-10.9-x86_64-3.7/src/libImaging/Pack.o 
> build/temp.macosx-10.9-x86_64-3.7/src/libImaging/PackDecode.o 
> build/temp.macosx-10.9-x86_64-3.7/src/libImaging/Palette.o 
> build/temp.macosx-10.9-x86_64-3.7/src/libImaging/Paste.o 
> build/temp.macosx-10.9-x86_64-3.7/src/libImaging/Quant.o 
> build/temp.macosx-10.9-x86_64-3.7/src/libImaging/QuantOctree.o 
> build/temp.macosx-10.9-x86_64-3.7/src/libImaging/QuantHash.o 
> build/temp.macosx-10.9-x86_64-3.7/src/libImaging/QuantHeap.o 
> build/temp.macosx-10.9-x86_64-3.7/src/libImaging/PcdDecode.o 
> build/temp.macosx-10.9-x86_64-3.7/src/libImaging/PcxDecode.o 
> build/temp.macosx-10.9-x86_64-3.7/src/libImaging/PcxEncode.o 
> build/temp.macosx-10.9-x86_64-3.7/src/libImaging/Point.o 
> build/temp.macosx-10.9-x86_64-3.7/src/libImaging/RankFilter.o 
> build/temp.macosx-10.9-x86_64-3.7/src/libImaging/RawDecode.o 
> build/temp.macosx-10.9-x86_64-3.7/src/libImaging/RawEncode.o 
> build/temp.macosx-10.9-x86_64-3.7/src/libImaging/Storage.o 
> build/temp.macosx-10.9-x86_64-3.7/src/libImaging/SgiRleDecode.o 
> build/temp.macosx-10.9-x86_64-3.7/src/libImaging/SunRleDecode.o 
> build/temp.macosx-10.9-x86_64-3.7/src/libImaging/TgaRleDecode.o 
> build/temp.macosx-10.9-x86_64-3.7/src/libImaging/TgaRleEncode.o 
> build/temp.macosx-10.9-x86_64-3.7/src/libImaging/Unpack.o 
> build/temp.macosx-10.9-x86_64-3.7/src/libImaging/UnpackYCC.o 
> build/temp.macosx-10.9-x86_64-3.7/src/libImaging/UnsharpMask.o 
> build/temp.macosx-10.9-x86_64-3.7/src/libImaging/XbmDecode.o 
> build/temp.macosx-10.9-x86_64-3.7/src/libImaging/XbmEncode.o 
> build/temp.macosx-10.9-x86_64-3.7/src/libImaging/ZipDecode.o 
> build/temp.macosx-10.9-x86_64-3.7/src/libImaging/ZipEncode.o 
> build/temp.macosx-10.9-x86_64-3.7/src/libImaging/TiffDecode.o 
> build/temp.macosx-10.9-x86_64-3.7/src/libImaging/Jpeg2KDecode.o 
> build/temp.macosx-10.9-x86_64-3.7/src/libImaging/Jpeg2KEncode.o 
> build/temp.macosx-10.9-x86_64-3.7/src/libImaging/BoxBlur.o 
> build/temp.macosx-10.9-x86_64-3.7/src/libImaging/QuantPngQuant.o 
> build/temp.macosx-10.9-x86_64-3.7/src/libImaging/codec_fd.o 
> -L/usr/local/Cellar/jpeg/9d/lib -L/usr/local/Cellar/libtiff/4.1.0/lib 
> -L/usr/local/lib -L/Applications/sage/local/lib -L/opt/local/lib 
> -L/usr/local/Cellar/freetype/2.10.1/lib -L/usr/lib -lz -ltiff -o 
> build/lib.macosx-10.9-x86_64-3.7/PIL/_imaging.cpython-37m-darwin.so
> error: command 'gcc' failed with exit status 1
> ********************************************************************************
> Error building/installing Pillow
> ********************************************************************************
>
> real    0m13.129s
> user    0m11.215s
> sys     0m2.644s
> ************************************************************************
> Error installing package pillow-5.3.0.p0
> ************************************************************************
> Please email sage-devel (http://groups.google.com/group/sage-devel)
> explaining the problem and including the log file
>   /Applications/sage/logs/pkgs/pillow-5.3.0.p0.log
> Describe your computer, operating system, etc.
> If you want to try to fix the problem yourself, *don't* just cd to
> /Applications/sage/local/var/tmp/sage/build/pillow-5.3.0.p0 and type 'make' 
> or whatever is appropriate.
> Instead, the following commands setup all environment variables
> correctly and load a subshell for you to debug the error:
>   (cd '/Applications/sage/local/var/tmp/sage/build/pillow-5.3.0.p0' && 
> '/Applications/sage/sage' --buildsh)
> When you are done debugging, you can type "exit" to leave the subshell.
> ************************************************************************
>
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