> On Feb 7, 2021, at 5:39 PM, Christopher Jones <[email protected]> > wrote: > > macOS 11 brought big changes to how Apple versions its SDKs. They now > potentially change each minor update, and as such we had to figure out how to > deal with this. > > gcc is built against a specific SDK, and to handle this unpredictably it was > recently changed to use the unversioned SDK, instead of a versioned one, > where required. > > https://github.com/macports/macports-ports/commit/e8866c5019d60832527850b4e50fdc1de8878716#diff-5aeb3e82f6999f57229a816d2877a6232489c3484ac3e6716cb7e62b5a82696f > > <https://github.com/macports/macports-ports/commit/e8866c5019d60832527850b4e50fdc1de8878716#diff-5aeb3e82f6999f57229a816d2877a6232489c3484ac3e6716cb7e62b5a82696f> > > Are you on maOS 11 ? > > please post the output you get from your failing build, showing the full > command line you use, and the full output, and include the -v option to get > additional diagnostic output. > > Chris
Using macOS Catalina 10.15.7 Here’s my CPATH environment variable, which up until the gcc9 upgrade, worked fine to relay the location of relevant include paths: CPATH=/Applications/Xcode.app/Contents/Developer/Platforms/MacOSX.platform/Developer/SDKs/MacOSX.sdk/usr/include:/usr/local/include:/opt/local/include:/usr/local/dart-sdk/include:/Library/Frameworks/R.framework/Resources/include Also, here’s the contents of my SDKs directory in XCode 12.4: pwd = /Applications/Xcode.app/Contents/Developer/Platforms/MacOSX.platform/Developer/SDKs drwxr-xr-x 5 root wheel 160 Nov 30 07:27 DriverKit20.2.sdk/ drwxr-xr-x 7 root wheel 224 Nov 30 07:27 MacOSX.sdk/ lrwxr-xr-x 1 root wheel 10 Jan 27 04:53 MacOSX11.1.sdk -> MacOSX.sdk/ So it seems I’m using the SDK for macOS 11.1… Here’s the full output of the error using the -v option: g++ -v -std=c++11 -c E2.5.2.cpp -o E2.5.2.o Using built-in specs. COLLECT_GCC=g++ Target: x86_64-apple-darwin19 Configured with: /opt/local/var/macports/build/_opt_bblocal_var_buildworker_ports_build_ports_lang_gcc9/gcc9/work/gcc-9.3.0/configure --prefix=/opt/local --build=x86_64-apple-darwin19 --enable-languages=c,c++,objc,obj-c++,lto,fortran,jit --libdir=/opt/local/lib/gcc9 --includedir=/opt/local/include/gcc9 --infodir=/opt/local/share/info --mandir=/opt/local/share/man --datarootdir=/opt/local/share/gcc-9 --with-local-prefix=/opt/local --with-system-zlib --disable-nls --program-suffix=-mp-9 --with-gxx-include-dir=/opt/local/include/gcc9/c++/ --with-gmp=/opt/local --with-mpfr=/opt/local --with-mpc=/opt/local --with-isl=/opt/local --enable-stage1-checking --disable-multilib --enable-lto --enable-libstdcxx-time --with-build-config=bootstrap-debug --with-as=/opt/local/bin/as --with-ld=/opt/local/bin/ld --with-ar=/opt/local/bin/ar --with-bugurl=https://trac.macports.org/newticket --enable-host-shared --disable-tls --with-pkgversion='MacPorts gcc9 9.3.0_5' --with-sysroot=/Applications/Xcode.app/Contents/Developer/Platforms/MacOSX.platform/Developer/SDKs/MacOSX10.15.sdk Thread model: posix gcc version 9.3.0 (MacPorts gcc9 9.3.0_5) COLLECT_GCC_OPTIONS='-v' '-std=c++11' '-c' '-o' 'E2.5.2.o' '-mmacosx-version-min=10.15.0' '-asm_macosx_version_min=10.15' '-shared-libgcc' '-mtune=core2' /opt/local/libexec/gcc/x86_64-apple-darwin19/9.3.0/cc1plus -quiet -v -D__DYNAMIC__ E2.5.2.cpp -fPIC -quiet -dumpbase E2.5.2.cpp -mmacosx-version-min=10.15.0 -mtune=core2 -auxbase-strip E2.5.2.o -std=c++11 -version -o /var/folders/yh/ywbbh6_w8xl9_6006s6dywd80000gr/T//cc1Ruczn.s GNU C++11 (MacPorts gcc9 9.3.0_5) version 9.3.0 (x86_64-apple-darwin19) compiled by GNU C version 9.3.0, GMP version 6.2.1, MPFR version 4.1.0, MPC version 1.2.1, isl version isl-0.22.1-GMP GGC heuristics: --param ggc-min-expand=100 --param ggc-min-heapsize=131072 ignoring nonexistent directory "/Applications/Xcode.app/Contents/Developer/Platforms/MacOSX.platform/Developer/SDKs/MacOSX10.15.sdk/opt/local/include" ignoring nonexistent directory "/opt/local/lib/gcc9/gcc/x86_64-apple-darwin19/9.3.0/../../../../../x86_64-apple-darwin19/include" ignoring nonexistent directory "/Applications/Xcode.app/Contents/Developer/Platforms/MacOSX.platform/Developer/SDKs/MacOSX10.15.sdk/usr/include" ignoring nonexistent directory "/Applications/Xcode.app/Contents/Developer/Platforms/MacOSX.platform/Developer/SDKs/MacOSX10.15.sdk/System/Library/Frameworks" ignoring nonexistent directory "/Applications/Xcode.app/Contents/Developer/Platforms/MacOSX.platform/Developer/SDKs/MacOSX10.15.sdk/Library/Frameworks" #include "..." search starts here: #include <...> search starts here: /Applications/Xcode.app/Contents/Developer/Platforms/MacOSX.platform/Developer/SDKs/MacOSX.sdk/usr/include /usr/local/include /opt/local/include /usr/local/dart-sdk/include /Library/Frameworks/R.framework/Resources/include /opt/local/include/gcc9/c++/ /opt/local/include/gcc9/c++//x86_64-apple-darwin19 /opt/local/include/gcc9/c++//backward /opt/local/lib/gcc9/gcc/x86_64-apple-darwin19/9.3.0/include /opt/local/lib/gcc9/gcc/x86_64-apple-darwin19/9.3.0/include-fixed End of search list. GNU C++11 (MacPorts gcc9 9.3.0_5) version 9.3.0 (x86_64-apple-darwin19) compiled by GNU C version 9.3.0, GMP version 6.2.1, MPFR version 4.1.0, MPC version 1.2.1, isl version isl-0.22.1-GMP GGC heuristics: --param ggc-min-expand=100 --param ggc-min-heapsize=131072 Compiler executable checksum: 45101e0fe9cd9377caa0fee122dd387a In file included from /opt/local/include/gcc9/c++/ext/string_conversions.h:41, from /opt/local/include/gcc9/c++/bits/basic_string.h:6493, from /opt/local/include/gcc9/c++/string:55, from /opt/local/include/gcc9/c++/bits/locale_classes.h:40, from /opt/local/include/gcc9/c++/bits/ios_base.h:41, from /opt/local/include/gcc9/c++/ios:42, from /opt/local/include/gcc9/c++/ostream:38, from /opt/local/include/gcc9/c++/iostream:39, from ../../standard_includes.h:1, from E2.5.2.cpp:1: /opt/local/include/gcc9/c++/cstdlib:75:15: fatal error: stdlib.h: No such file or directory 75 | #include_next <stdlib.h> | ^~~~~~~~~~ compilation terminated. make: *** [../../Makefile-Template:10: E2.5.2.o] Error 1 > >> On 7 Feb 2021, at 10:24 pm, Carlo Tambuatco <[email protected] >> <mailto:[email protected]>> wrote: >> >> Well what's odd is I'm only getting this error after upgrading to the latest >> macports gcc9. Indeed when I use the XCode provided clang version of gcc, it >> finds all the required libraries. My CPATH environment variable was >> sufficient to specify the locations of the libraries before the upgrade, so >> the question is, what changed post-upgrade? >> >> On Sun, Feb 7, 2021, 5:03 PM Chris Jones <[email protected] >> <mailto:[email protected]>> wrote: >> >> It sounds like your builds are not correctly specifying the SDK gcc is to >> use. There are a number of ways you can do this, either by pass it via a >> compiler flag, by running the complication through xcrun, or by setting the >> SDKROOT variables to the required path. >> >> Cheers Chris >> >> > On 7 Feb 2021, at 9:25 pm, Carlo Tambuatco <[email protected] >> > <mailto:[email protected]>> wrote: >> > >> > I don’t know if this is a result of updating to the latest macports gcc9, >> > or the update of XCode, but >> > all of a sudden when I try to build my C++ program which includes <cstdio> >> > I get this strange >> > chain reaction of errors. >> > >> > In file included from >> > /opt/local/include/gcc9/c++/ext/string_conversions.h:41, >> > from /opt/local/include/gcc9/c++/bits/basic_string.h:6493, >> > from /opt/local/include/gcc9/c++/string:55, >> > from /opt/local/include/gcc9/c++/bits/locale_classes.h:40, >> > from /opt/local/include/gcc9/c++/bits/ios_base.h:41, >> > from /opt/local/include/gcc9/c++/ios:42, >> > from /opt/local/include/gcc9/c++/ostream:38, >> > from /opt/local/include/gcc9/c++/iostream:39, >> > from ../../standard_includes.h:1, >> > from E2.5.2.cpp:1: >> > /opt/local/include/gcc9/c++/cstdlib:75:15: fatal error: stdlib.h: No such >> > file or directory >> > 75 | #include_next <stdlib.h> >> > >> > >> > From my makefile this seems to be the offending includes statement: >> > >> > #include <iostream> >> > #include <cstdio> >> > >> > >> > I’ve googled and it seems that it can’t find stdlib.h, even though it is >> > on my CPATH environment variable: >> > >> > export >> > CPATH=/Applications/Xcode.app/Contents/Developer/Platforms/MacOSX.platform/Developer/SDKs/MacOSX.sdk/usr/include:/usr/local/include:/opt/local/include:/usr/local/dart-sdk/include:/Library/Frameworks/R.framework/Resources/include >> > >> >
