[cfe-dev] Trouble building Clang on CentOS 6
Don Hinton via cfe-dev
cfe-dev at lists.llvm.org
Wed Sep 6 15:45:25 PDT 2017
Perhaps set LD_LIBRARY_PATH so clang-tblgen can find the correct version of
libstdc++.so.
On Wed, Sep 6, 2017 at 3:07 PM, Uri Moszkowicz via cfe-dev <
cfe-dev at lists.llvm.org> wrote:
> I get the same error using your build script :(
>
> 46%] Copying clang's cuda_wrappers/algorithm...
> [ 46%] Copying clang's cuda_wrappers/new...
> [ 46%] Copying clang's cuda_wrappers/complex...
> [ 46%] Building arm_neon.h...
> ../../../../bin/clang-tblgen: /usr/lib64/libstdc++.so.6: version
> `GLIBCXX_3.4.20' not found (required by ../../../../bin/clang-tblgen)
> ../../../../bin/clang-tblgen: /usr/lib64/libstdc++.so.6: version
> `CXXABI_1.3.9' not found (required by ../../../../bin/clang-tblgen)
> ../../../../bin/clang-tblgen: /usr/lib64/libstdc++.so.6: version
> `GLIBCXX_3.4.14' not found (required by ../../../../bin/clang-tblgen)
> ../../../../bin/clang-tblgen: /usr/lib64/libstdc++.so.6: version
> `GLIBCXX_3.4.19' not found (required by ../../../../bin/clang-tblgen)
> ../../../../bin/clang-tblgen: /usr/lib64/libstdc++.so.6: version
> `GLIBCXX_3.4.21' not found (required by ../../../../bin/clang-tblgen)
> make[2]: *** [tools/clang/lib/Headers/arm_neon.h.tmp] Error 1
> make[2]: *** Waiting for unfinished jobs....
> make[1]: *** [tools/clang/lib/Headers/CMakeFiles/clang-headers.dir/all]
> Error 2
> [ 46%] Linking CXX executable ../../bin/not
> [ 46%] Built target not
> [ 46%] Linking CXX executable ../../bin/llvm-cxxfilt
> [ 46%] Linking CXX executable ../../bin/llvm-mcmarkup
> [ 46%] Built target llvm-cxxfilt
>
> My CMake, FCC, and Python builds were from source, not the package
> manager. I'm using CentOS 6.7 btw.
>
> I think there's a clue in the error message here, given the reference to
> /usr/lib64. I noticed that spaces in arguments were getting dropped by
> CMake in commands. You don't have the linker option CMAKE_CXX_LINK_FLAGS
> specified from the build instructions but even if you did, the latter half
> of the option is truncated.
>
> On Fri, Sep 1, 2017 at 10:33 PM, Jeff Hammond <jeff.science at gmail.com>
> wrote:
>
>> I built the latest Git on CentOS 6 two days ago, but I use upgraded
>> CMake, GCC, Python and other things. So there is nothing fundamentally
>> wrong with CentOS other than the built-in packages it comes with are too
>> old.
>>
>> I recall CMake does something idiotic wherein it prefers /usr/bin/python
>> over `which python`, which you have to manually override with
>> -DPYTHON_EXECUTABLE=`which python`, or at least that is what I archived in
>> my successful build script.
>> https://github.com/jeffhammond/HPCInfo/blob/master/
>> buildscripts/llvm-git.sh#L95
>>
>> Jeff
>>
>>
>> On Fri, Sep 1, 2017 at 3:18 PM, Uri Moszkowicz via cfe-dev <
>> cfe-dev at lists.llvm.org> wrote:
>> >
>> > Hi Csaba,
>> > I started with the instructions on the LLVM website. The problem is
>> that CentOS 6 does not meet the build requirements, shown here:
>> >
>> > http://llvm.org/docs/GettingStarted.html#requirements
>> >
>> > I built the required versions of software but the instructions don't
>> cover how to utilize them.
>> >
>> > Anyway, I compiled again with VERBOSE and discovered the problem is
>> missing LibraryDependencies.inc. I specified python27 with a CMake variable
>> and added it to my PATH but it still didn't solve the problem:
>> >
>> > make[2]: Nothing to be done for `projects/compiler-rt/lib/buil
>> tins/CMakeFiles/builtins.dir/build'.
>> > make[2]: Leaving directory `<clang-4.0.1>/src/build/llvm-4.0.1-redhat6'
>> > [ 36%] Built target builtins
>> > <llvm-4.0.1>/tools/llvm-config/llvm-config.cpp:47:35: fatal error:
>> LibraryDependencies.inc: No such file or directory
>> > #include "LibraryDependencies.inc"
>> > ^
>> > compilation terminated.
>> > make[2]: *** [tools/llvm-config/CMakeFiles/
>> llvm-config.dir/llvm-config.cpp.o] Error 1
>> > make[2]: Leaving directory `<clang-4.0.1>/src/build/llvm-4.0.1-redhat6'
>> > make[1]: *** [tools/llvm-config/CMakeFiles/llvm-config.dir/all] Error 2
>> >
>> > How can I move past this error? Despite setting LD_LIBRARY_PATH and
>> CMAKE_CXX_LINK_FLAGS as indicated in the instructions above, I also still
>> seem to be getting GLIBC errors too :(
>> >
>> > Thanks,
>> > Uri
>> >
>> >
>> > On Thu, Aug 31, 2017 at 3:47 AM, Csaba Raduly <rcsaba at gmail.com> wrote:
>> >>
>> >> Hi Uri,
>> >>
>> >> On Wed, Aug 30, 2017 at 11:35 PM, Uri Moszkowicz via cfe-dev
>> >> <cfe-dev at lists.llvm.org> wrote:
>> >> > Hi,
>> >> > I'm having trouble building Clang on CentOS 6 and am hoping someone
>> here can
>> >> > help. I followed the instructions on this website:
>> >> >
>> >> > http://btorpey.github.io/blog/2015/01/02/building-clang/
>> >>
>> >> Seems a bit old, why not https://clang.llvm.org/get_started.html
>> >>
>> >> >
>> >> > I'm using GCC 6.3.0 and Python 2.7.13, both also built from source
>> using
>> >> > these options:
>> >> >
>> >> > -DCMAKE_C_COMPILER=<gcc-6.3.0>/redhat6/bin/gcc
>> >> > -DCMAKE_CXX_COMPILER=<gcc-6.3.0>/redhat6/bin/g++
>> >> > -DCMAKE_CXX_LINK_FLAGS='-L<gcc-6.3.0>/redhat6/lib64
>> >> > -Wl,-rpath,<gcc-6.3.0>/redhat6/lib64'
>> >> > -DLLVM_ENABLE_ASSERTIONS=ON
>> >> > -DCMAKE_BUILD_TYPE=Release
>> >> > -DLLVM_TARGETS_TO_BUILD=X86
>> >> > -DGCC_INSTALL_PREFIX=<gcc-6.3.0>/redhat6
>> >> > -DPYTHON_EXECUTABLE:FILEPATH=<python-2.7.13>/redhat6/bin/python
>> >> > -DCMAKE_INSTALL_PREFIX=<clang-4.0.1>/redhat6
>> >> >
>> >> > The errors I'm seeing look like this (I used -j32):
>> >> >
>> >> > [ 4%] Building CXX object
>> >> > lib/TableGen/CMakeFiles/LLVMTableGen.dir/Main.cpp.o
>> >> > [ 4%] Building CXX object
>> >> > lib/Option/CMakeFiles/LLVMOption.dir/OptTable.cpp.o
>> >> > [ 6%] Building C object
>> >> > projects/compiler-rt/lib/builtins/CMakeFiles/clang_rt.builti
>> ns-x86_64.dir/absvdi2.c.o
>> >> > [ 6%] Building CXX object
>> >> > projects/compiler-rt/lib/sanitizer_common/CMakeFiles/RTSanit
>> izerCommonLibc.x86_64.dir/sanitizer_coverage_mapping_libcdep.cc.o
>> >> > Scanning dependencies of target LLVMSupport
>> >> > g++: fatal error: no input files
>> >> > compilation terminated.
>> >> > make[2]: *** [bin/llvm-PerfectShuffle] Error 1
>> >> > make[1]: *** [utils/PerfectShuffle/CMakeFil
>> es/llvm-PerfectShuffle.dir/all]
>> >> > Error 2
>> >> (snip)
>> >> >
>> >> > Any thoughts about what else I need to do?
>> >>
>> >> For debugging purposes, build with
>> >>
>> >> make VERBOSE=1
>> >>
>> >> This would print the actual compiler invocation; the we'll have a
>> >> better chance figuring out what went wrong.
>> >>
>> >> Csaba
>> >> --
>> >> GCS a+ e++ d- C++ ULS$ L+$ !E- W++ P+++$ w++$ tv+ b++ DI D++ 5++
>> >> The Tao of math: The numbers you can count are not the real numbers.
>> >> Life is complex, with real and imaginary parts.
>> >> "Ok, it boots. Which means it must be bug-free and perfect. " -- Linus
>> Torvalds
>> >> "People disagree with me. I just ignore them." -- Linus Torvalds
>> >
>> >
>> >
>> > _______________________________________________
>> > cfe-dev mailing list
>> > cfe-dev at lists.llvm.org
>> > http://lists.llvm.org/cgi-bin/mailman/listinfo/cfe-dev
>> >
>>
>>
>>
>> --
>> Jeff Hammond
>> jeff.science at gmail.com
>> http://jeffhammond.github.io/
>>
>
>
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