[SOLVED] LLVM Profile - Help Needed Failed Emerges

[MajorJalepino]

Hello geniuses,

I'm having trouble with my LLVM profile installation - I know that GCC and it's supporting packages can't be compiled by clang and the LLVM libraries, but I can't seem to get a fallback environment working either. This is from my latest emerge --update with cmake, but I suspect whatever issues I'm having here are also causing issues with GCC, glibc and others.

Outputs:

Code: Select all

emerge --info '=dev-build/cmake-3.31.7-r1::gentoo' 

https://0x0.st/8wRN.7-r1::ge

Code: Select all

emerge -pqv '=dev-build/cmake-3.31.7-r1::gentoo'

http://0x0.st/8wRq.7-r1::ge

Code: Select all

/var/tmp/portage/dev-build/cmake-3.31.7-r1/temp/build.log

http://0x0.st/8wRc.log

Other information:

• 1. Installing from WSL
  2. Custom Profile (should be reflected in emerge --info, yes? Or is this still a bug?)

[fedeliallalinea]

Code: Select all

[ 84%] [32mBuilding CXX object Source/CursesDialog/CMakeFiles/ccmake.dir/cmCursesLongMessageForm.cxx.o[0m
cd /var/tmp/portage/dev-build/cmake-3.31.7-r1/work/cmake-3.31.7_build/Source/CursesDialog && /usr/lib/llvm/19/bin/clang++  -I/var/tmp/portage/dev-build/cmake-3.31.7-r1/work/cmake-3.31.7_build/Utilities -I/var/tmp/portage/dev-build/cmake-3.31.7-r1/work/cmake-3.31.7_build/Source -I/var/tmp/portage/dev-build/cmake-3.31.7-r1/work/cmake-3.31.7/Source -I/var/tmp/portage/dev-build/cmake-3.31.7-r1/work/cmake-3.31.7/Source/LexerParser -isystem /var/tmp/portage/dev-build/cmake-3.31.7-r1/work/cmake-3.31.7/Utilities/std -isystem /var/tmp/portage/dev-build/cmake-3.31.7-r1/work/cmake-3.31.7/Utilities -isystem /usr/include/jsoncpp  -O3 -march=znver3 -pipe -Werror=odr -Werror=strict-aliasing -std=c++17 -Wno-deprecated-declarations -MD -MT Source/CursesDialog/CMakeFiles/ccmake.dir/cmCursesLongMessageForm.cxx.o -MF CMakeFiles/ccmake.dir/cmCursesLongMessageForm.cxx.o.d -o CMakeFiles/ccmake.dir/cmCursesLongMessageForm.cxx.o -c /var/tmp/portage/dev-build/cmake-3.31.7-r1/work/cmake-3.31.7/Source/CursesDialog/cmCursesLongMessageForm.cxx
ld.lld: [0;31merror: [0mundefined symbol: Json::Value::Value(std::__1::basic_string<char, std::__1::char_traits<char>, std::__1::allocator<char>> const&)
>>> referenced by cmBuildDatabase.cxx
>>>               cmBuildDatabase.cxx.o:(cmBuildDatabase::Write(std::__1::basic_string<char, std::__1::char_traits<char>, std::__1::allocator<char>> const&) const) in archive libCMakeLib.a
>>> referenced by cmBuildDatabase.cxx
>>>               cmBuildDatabase.cxx.o:(cmBuildDatabase::Write(std::__1::basic_string<char, std::__1::char_traits<char>, std::__1::allocator<char>> const&) const) in archive libCMakeLib.a
>>> referenced by cmBuildDatabase.cxx
>>>               cmBuildDatabase.cxx.o:(cmBuildDatabase::Write(std::__1::basic_string<char, std::__1::char_traits<char>, std::__1::allocator<char>> const&) const) in archive libCMakeLib.a
>>> referenced 228 more times

Try to rebuild dev-libs/jsoncpp package.

[MajorJalepino]

Thank you,

That worked flawlessly - do you need any outputs from that?

[Hu]

I see this thread marked as solved, but the preceding post does not directly say that rebuilding jsoncpp solved the original problem, so I will ask: Is there anything more to do here? I think fedeliallalinea's expectation was that after rebuilding jsoncpp, the original error would go away. I suspect, based on the solved marker, that it did go away. If not, and you still need more help, show us the new failure.

[sam_]

You cannot safely use a "GCC fallback" on an LLVM profile because the LLVM profiles use libcxx. I have tried to explain this on the gentoo.org downloads page as well as the wiki but people seem to keep missing it.

[pietinger]

Moved from Portage & Programming to Unsupported Software.