what happens if you set SDKROOT and then try again export SDKROOT=`xcrun --show-sdk-path`
? > On 7 Feb 2021, at 11:12 pm, Carlo Tambuatco <[email protected]> wrote: > > > >> On Feb 7, 2021, at 5:39 PM, Christopher Jones <[email protected] >> <mailto:[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 > <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 >>> >
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