Barry A. Warsaw <ba...@python.org> added the comment:
% gcc -v gg.c
Apple LLVM version 10.0.0 (clang-1000.11.45.2)
Target: x86_64-apple-darwin18.0.0
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"
-cc1 -triple x86_64-apple-macosx10.14.0 -Wdeprecated-objc-isa-usage
-Werror=deprecated-objc-isa-usage -emit-obj -mrelax-all -disable-free
-disable-llvm-verifier -discard-value-names -main-file-name gg.c
-mrelocation-model pic -pic-level 2 -mthread-model posix -mdisable-fp-elim
-fno-strict-return -masm-verbose -munwind-tables -target-cpu penryn
-dwarf-column-info -debugger-tuning=lldb -target-linker-version 409.12 -v
-resource-dir
/Applications/Xcode.app/Contents/Developer/Toolchains/XcodeDefault.xctoolchain/usr/lib/clang/10.0.0
-fdebug-compilation-dir /Users/bwarsaw/projects/python -ferror-limit 19
-fmessage-length 131 -stack-protector 1 -fblocks
-fencode-extended-block-signature -fobjc-runtime=macosx-10.14.0
-fmax-type-align=16 -fdiagnostics-show-option -o
/var/folders/06/yd7czfp11bx1vx4p5dl10v4w000slb/T/gg-a38469.o -x c gg.c
clang -cc1 version 10.0.0 (clang-1000.11.45.2) default target
x86_64-apple-darwin18.0.0
#include "..." search starts here:
#include <...> search starts here:
/usr/local/include
/Applications/Xcode.app/Contents/Developer/Toolchains/XcodeDefault.xctoolchain/usr/lib/clang/10.0.0/include
/Applications/Xcode.app/Contents/Developer/Toolchains/XcodeDefault.xctoolchain/usr/include
/usr/include
/System/Library/Frameworks (framework directory)
/Library/Frameworks (framework directory)
End of search list.
"/Applications/Xcode.app/Contents/Developer/Toolchains/XcodeDefault.xctoolchain/usr/bin/ld"
-demangle -lto_library
/Applications/Xcode.app/Contents/Developer/Toolchains/XcodeDefault.xctoolchain/usr/lib/libLTO.dylib
-no_deduplicate -dynamic -arch x86_64 -macosx_version_min 10.14.0 -o a.out
/var/folders/06/yd7czfp11bx1vx4p5dl10v4w000slb/T/gg-a38469.o -lSystem
/Applications/Xcode.app/Contents/Developer/Toolchains/XcodeDefault.xctoolchain/usr/lib/clang/10.0.0/lib/darwin/libclang_rt.osx.a
% otool -L a.out
a.out:
/usr/lib/libSystem.B.dylib (compatibility version 1.0.0, current
version 1252.200.5)
So I guess it's interesting that it's searching /usr/local/include, which has
some Homebrew headers in it:
% ls /usr/local/include
ImageMagick-7@ gdcache.h@ libltdl@
pg_config_manual.h@ sqlda-native.h@
adns.h@ gdfontg.h@ libpng16@
pg_config_os.h@ sqlda.h@
aspell.h@ gdfontl.h@ libpq@
pgtypes.h@ tiff.h@
assuan.h@ gdfontmb.h@ libpq-events.h@
pgtypes_date.h@ tiffconf.h@
ecpg_config.h@ gdfonts.h@ libpq-fe.h@
pgtypes_error.h@ tiffio.h@
ecpg_informix.h@ gdfontt.h@ libssh2.h@
pgtypes_interval.h@ tiffio.hxx@
ecpgerrno.h@ gdfx.h@ libssh2_publickey.h@
pgtypes_numeric.h@ tiffvers.h@
ecpglib.h@ gdpp.h@ libssh2_sftp.h@
pgtypes_timestamp.h@ unicase.h@
ecpgtype.h@ gmp.h@ libtasn1.h@ png.h@
uniconv.h@
entities.h@ gmpxx.h@ libusb-1.0@
pngconf.h@ unictype.h@
evdns.h@ gnutls@ ltdl.h@
pnglibconf.h@ unigbrk.h@
event.h@ gpg-error.h@ lzma@ popt.h@
unilbrk.h@
event2@ gpgrt.h@ lzma.h@
postgres_ext.h@ uniname.h@
evhttp.h@ graphviz@ mysql@ pspell@
uninorm.h@
evrpc.h@ idn2.h@ nettle@
python3.6m/ unistdio.h@
evutil.h@ informix@ newt.h@
python3.7m/ unistr.h@
fontconfig@ internal@ npth.h@
python3.8m/ unistring@
freetype2@ jconfig.h@ nspr@
readtags.h@ unitypes.h@
gcrypt.h@ jerror.h@ openjpeg-2.3@ server@
uniwbrk.h@
gd.h@ jmorecfg.h@ p11-kit-1@
slang.h@ uniwidth.h@
gd_color_map.h@ jpeglib.h@ pcre2.h@
slcurses.h@ webp@
gd_errors.h@ ksba.h@ pcre2posix.h@
sql3types.h@
gd_io.h@ lcms2.h@ pg_config.h@ sqlca.h@
gdbm.h@ lcms2_plugin.h@ pg_config_ext.h@
sqlda-compat.h@
All those symlinks point into ../Cellar/
It doesn't look much different than what happens on 10.13. I'll try to see
what the paths are when I build Python.
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<https://bugs.python.org/issue35070>
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