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Hello Han, |
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On Fri, Sep 02, 2016 at 02:49:22PM +0000, Han H. wrote: |
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> This might be the relevant error message: |
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> 'stdio.h' file not found |
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The more interesting message is this one: |
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> x86_64-apple-darwin15-clang-3.7: warning: no such sysroot directory: '-mmacosx-version-min=10.5' |
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It basically says thath '-mmacosx-version-min=10.5' is passed as |
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parameter to -isysroot which is bogus. Looking at the compiler call for |
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eprintf.c above it: |
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> /Users/abc/gentoo/usr/bin/x86_64-apple-darwin15-clang -D__STDC_CONSTANT_MACROS -D__STDC_FORMAT_MACROS -D__STDC_LIMIT_MACROS -Iprojects/compiler-rt/lib/builtins -I/Users/abc/gentoo/var/tmp/portage/sys-devel/llvm-3.8.1/work/llvm-3.8.1.src/projects/compiler-rt/lib/builtins -Iinclude -I/Users/abc/gentoo/var/tmp/portage/sys-devel/llvm-3.8.1/work/llvm-3.8.1.src/include -DNDEBUG -arch i386 -isysroot -mmacosx-version-min=10.5 -arch i386 -fPIC -O3 -fvisibility=hidden -DVISIBILITY_HIDDEN -Wall -fomit-frame-pointer -MD -MT projects/compiler-rt/lib/builtins/CMakeFiles/clang_rt.eprintf.dir/eprintf.c.o -MF projects/compiler-rt/lib/builtins/CMakeFiles/clang_rt.eprintf.dir/eprintf.c.o.d -o projects/compiler-rt/lib/builtins/CMakeFiles/clang_rt.eprintf.dir/eprintf.c.o -c /Users/abc/gentoo/var/tmp/portage/sys-devel/llvm-3.8.1/work/llvm-3.8.1.src/projects/compiler-rt/lib/builtins/eprintf.c |
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... you can see that this is actually the case: |
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-isysroot -mmacosx-version-min=10.5 |
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So you'd need to find out why that is the case. |
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Grepping for sysroot in llvm-3.8.1.src/projects/compiler-rt and knowing |
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that llvm is nowadays built using cmake on Gentoo I find |
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cmake/config-ix.cmake which has the following interesting code block |
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that might lead to an -isysroot parameter without path: |
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# On Darwin if /usr/include doesn't exist, the user probably has Xcode but not |
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# the command line tools. If this is the case, we need to find the OS X |
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# sysroot to pass to clang. |
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if(NOT EXISTS /usr/include) |
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execute_process(COMMAND xcodebuild -version -sdk macosx Path |
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OUTPUT_VARIABLE OSX_SYSROOT |
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ERROR_QUIET |
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OUTPUT_STRIP_TRAILING_WHITESPACE) |
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set(OSX_SYSROOT_FLAG "-isysroot${OSX_SYSROOT}") |
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endif() |
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So to get the obvious out of the way: |
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1. Do you have /usr/include |
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2. Do you have the XCode command line tools installed? |
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3. Have you recently upgraded Xcode and possibly forgotten the command |
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line tools so they don't match in version? |
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3. What does xcodebuild -version -sdk macosx Path output? |
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Another possiblity is this bit of CMake code in the same file: |
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find_darwin_sdk_dir(DARWIN_osx_SYSROOT macosx) |
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if(DARWIN_osx_SYSROOT) |
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list(APPEND DARWIN_osx_CFLAGS -isysroot ${DARWIN_osx_SYSROOT}) |
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list(APPEND DARWIN_osx_LINKFLAGS -isysroot ${DARWIN_osx_SYSROOT}) |
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endif() |
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find_darwin_sdk_dir is defined in ./cmake/Modules/CompilerRTDarwinUtils.cmake |
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and contains a basically identical call to xcodebuild. |
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Also, I just noticed that I have llvm-3.8.1-r1 on my box and emerge -atuND |
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@world is offering me a *downgrade* to 3.8.1 which you are trying to install. |
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I've just kicked this off and will let you know if it ran through on my system. |
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Yet also, there is an ebuild llvm-3.8.1-r2 and llvm-3.9.0_rc3. Have you tried |
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any of those (-r1, -r2, _rc3)? |
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-- |
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tschoe, Michael |
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I like Kaba! |
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