https://gcc.gnu.org/bugzilla/show_bug.cgi?id=98805
--- Comment #5 from Francois-Xavier Coudert <fxcoudert at gcc dot gnu.org> --- Here is what g++-10 -v gives during compilation: rmeur /tmp $ g++-10 a.cpp -v Using built-in specs. COLLECT_GCC=g++-10 COLLECT_LTO_WRAPPER=/usr/local/Cellar/gcc/10.2.0_2/libexec/gcc/x86_64-apple-darwin20/10.2.0/lto-wrapper Target: x86_64-apple-darwin20 Configured with: ../configure --build=x86_64-apple-darwin20 --prefix=/usr/local/Cellar/gcc/10.2.0_2 --libdir=/usr/local/Cellar/gcc/10.2.0_2/lib/gcc/10 --disable-nls --enable-checking=release --enable-languages=c,c++,objc,obj-c++,fortran --program-suffix=-10 --with-gmp=/usr/local/opt/gmp --with-mpfr=/usr/local/opt/mpfr --with-mpc=/usr/local/opt/libmpc --with-isl=/usr/local/opt/isl --with-system-zlib --with-pkgversion='Homebrew GCC 10.2.0_2' --with-bugurl=https://github.com/Homebrew/homebrew-core/issues --disable-multilib --with-native-system-header-dir=/usr/include --with-sysroot=/Library/Developer/CommandLineTools/SDKs/MacOSX.sdk SED=/usr/bin/sed Thread model: posix Supported LTO compression algorithms: zlib gcc version 10.2.0 (Homebrew GCC 10.2.0_2) COLLECT_GCC_OPTIONS='-v' '-mmacosx-version-min=11.0.0' '-asm_macosx_version_min=11.0' '-shared-libgcc' '-mtune=core2' /usr/local/Cellar/gcc/10.2.0_2/libexec/gcc/x86_64-apple-darwin20/10.2.0/cc1plus -quiet -v -D__DYNAMIC__ a.cpp -fPIC -quiet -dumpbase a.cpp -mmacosx-version-min=11.0.0 -mtune=core2 -auxbase a -version -o /var/folders/h8/9hx_fyj91053ksgdzb2w03vw0000gp/T//ccf7qnt5.s GNU C++14 (Homebrew GCC 10.2.0_2) version 10.2.0 (x86_64-apple-darwin20) compiled by GNU C version 10.2.0, GMP version 6.2.1, MPFR version 4.1.0, MPC version 1.2.1, isl version isl-0.23-GMP GGC heuristics: --param ggc-min-expand=100 --param ggc-min-heapsize=131072 ignoring nonexistent directory "/Library/Developer/CommandLineTools/SDKs/MacOSX.sdk/usr/local/include" ignoring nonexistent directory "/usr/local/Cellar/gcc/10.2.0_2/lib/gcc/10/gcc/x86_64-apple-darwin20/10.2.0/../../../../../../x86_64-apple-darwin20/include" ignoring nonexistent directory "/Library/Developer/CommandLineTools/SDKs/MacOSX.sdk/Library/Frameworks" #include "..." search starts here: #include <...> search starts here: /usr/local/Cellar/gcc/10.2.0_2/lib/gcc/10/gcc/x86_64-apple-darwin20/10.2.0/../../../../../../include/c++/10.2.0 /usr/local/Cellar/gcc/10.2.0_2/lib/gcc/10/gcc/x86_64-apple-darwin20/10.2.0/../../../../../../include/c++/10.2.0/x86_64-apple-darwin20 /usr/local/Cellar/gcc/10.2.0_2/lib/gcc/10/gcc/x86_64-apple-darwin20/10.2.0/../../../../../../include/c++/10.2.0/backward /usr/local/Cellar/gcc/10.2.0_2/lib/gcc/10/gcc/x86_64-apple-darwin20/10.2.0/include /usr/local/Cellar/gcc/10.2.0_2/lib/gcc/10/gcc/x86_64-apple-darwin20/10.2.0/include-fixed /Library/Developer/CommandLineTools/SDKs/MacOSX.sdk/usr/include /Library/Developer/CommandLineTools/SDKs/MacOSX.sdk/System/Library/Frameworks End of search list. GNU C++14 (Homebrew GCC 10.2.0_2) version 10.2.0 (x86_64-apple-darwin20) compiled by GNU C version 10.2.0, GMP version 6.2.1, MPFR version 4.1.0, MPC version 1.2.1, isl version isl-0.23-GMP GGC heuristics: --param ggc-min-expand=100 --param ggc-min-heapsize=131072 Compiler executable checksum: 226b82c9217faee57636048830034c6a COLLECT_GCC_OPTIONS='-v' '-mmacosx-version-min=11.0.0' '-shared-libgcc' '-mtune=core2' as -arch x86_64 -v -force_cpusubtype_ALL -mmacosx-version-min=11.0 -o /var/folders/h8/9hx_fyj91053ksgdzb2w03vw0000gp/T//cclYOyAu.o /var/folders/h8/9hx_fyj91053ksgdzb2w03vw0000gp/T//ccf7qnt5.s Apple clang version 12.0.0 (clang-1200.0.32.28) Target: x86_64-apple-darwin20.2.0 Thread model: posix InstalledDir: /Applications/Xcode.app/Contents/Developer/Toolchains/XcodeDefault.xctoolchain/usr/bin "/Applications/Xcode.app/Contents/Developer/Toolchains/XcodeDefault.xctoolchain/usr/bin/clang" -cc1as -triple x86_64-apple-macosx11.0.0 -filetype obj -main-file-name ccf7qnt5.s -target-cpu penryn -fdebug-compilation-dir /tmp -dwarf-debug-producer "Apple clang version 12.0.0 (clang-1200.0.32.28)" -dwarf-version=4 -mrelocation-model pic -o /var/folders/h8/9hx_fyj91053ksgdzb2w03vw0000gp/T//cclYOyAu.o /var/folders/h8/9hx_fyj91053ksgdzb2w03vw0000gp/T//ccf7qnt5.s COMPILER_PATH=/usr/local/Cellar/gcc/10.2.0_2/libexec/gcc/x86_64-apple-darwin20/10.2.0/:/usr/local/Cellar/gcc/10.2.0_2/libexec/gcc/x86_64-apple-darwin20/10.2.0/:/usr/local/Cellar/gcc/10.2.0_2/libexec/gcc/x86_64-apple-darwin20/:/usr/local/Cellar/gcc/10.2.0_2/lib/gcc/10/gcc/x86_64-apple-darwin20/10.2.0/:/usr/local/Cellar/gcc/10.2.0_2/lib/gcc/10/gcc/x86_64-apple-darwin20/ LIBRARY_PATH=/usr/local/Cellar/gcc/10.2.0_2/lib/gcc/10/gcc/x86_64-apple-darwin20/10.2.0/:/usr/local/Cellar/gcc/10.2.0_2/lib/gcc/10/gcc/x86_64-apple-darwin20/10.2.0/../../../ COLLECT_GCC_OPTIONS='-v' '-mmacosx-version-min=11.0.0' '-shared-libgcc' '-mtune=core2' /usr/local/Cellar/gcc/10.2.0_2/libexec/gcc/x86_64-apple-darwin20/10.2.0/collect2 -syslibroot /Library/Developer/CommandLineTools/SDKs/MacOSX.sdk/ -dynamic -arch x86_64 -macosx_version_min 11.0.0 -weak_reference_mismatches non-weak -o a.out -L/usr/local/Cellar/gcc/10.2.0_2/lib/gcc/10/gcc/x86_64-apple-darwin20/10.2.0 -L/usr/local/Cellar/gcc/10.2.0_2/lib/gcc/10/gcc/x86_64-apple-darwin20/10.2.0/../../.. /var/folders/h8/9hx_fyj91053ksgdzb2w03vw0000gp/T//cclYOyAu.o -lstdc++ -lSystem -lgcc_ext.10.5 -lgcc -lSystem -no_compact_unwind -v collect2 version 10.2.0 /usr/bin/ld -syslibroot /Library/Developer/CommandLineTools/SDKs/MacOSX.sdk/ -dynamic -arch x86_64 -macosx_version_min 11.0.0 -weak_reference_mismatches non-weak -o a.out -L/usr/local/Cellar/gcc/10.2.0_2/lib/gcc/10/gcc/x86_64-apple-darwin20/10.2.0 -L/usr/local/Cellar/gcc/10.2.0_2/lib/gcc/10/gcc/x86_64-apple-darwin20/10.2.0/../../.. /var/folders/h8/9hx_fyj91053ksgdzb2w03vw0000gp/T//cclYOyAu.o -lstdc++ -lSystem -lgcc_ext.10.5 -lgcc -lSystem -no_compact_unwind -v @(#)PROGRAM:ld PROJECT:ld64-609.8 BUILD 20:09:52 Nov 4 2020 configured to support archs: armv6 armv7 armv7s arm64 arm64e arm64_32 i386 x86_64 x86_64h armv6m armv7k armv7m armv7em Library search paths: /usr/local/Cellar/gcc/10.2.0_2/lib/gcc/10/gcc/x86_64-apple-darwin20/10.2.0 /usr/local/Cellar/gcc/10.2.0_2/lib/gcc/10 /Library/Developer/CommandLineTools/SDKs/MacOSX.sdk/usr/lib Framework search paths: /Library/Developer/CommandLineTools/SDKs/MacOSX.sdk/System/Library/Frameworks/
