[cfe-dev] Building llvm/clang using cmake + ninja on cygin fails: -fcolor-diagnostic is passed on to g++

[David Blaikie]

Oh. Perhaps we're forwarding that -f flag to the non-integrated linker.
That would be a clang driver bug.
On Sep 19, 2014 7:21 AM, "David Blaikie" <dblaikie at gmail.com> wrote:

> Why is your clang++ binary producing g++ error messages?
>
> Or am I misreading this somehow?
> On Sep 19, 2014 12:31 AM, "Guilherme" <guibufolo at gmail.com> wrote:
>
>> Hello
>>
>> I'm able to properly generate the Ninja file with the following
>> invocation:
>>
>> cmake -G Ninja -DCMAKE_BUILD_TYPE=Debug -DBUILD_SHARED_LIBS=1
>> -DCMAKE_EXPORT_COMPILE_COMMANDS=ON -DCMAKE_C_COMPILER=clang
>> -DCMAKE_CXX_COMPILER=clang++ ../llvm
>>
>> But when trying to build it fails with:
>> /usr/bin/clang++   -DGTEST_HAS_RTTI=0 -DLLVMSupport_EXPORTS -D_DEBUG
>> -D__STDC_CONSTANT_MACROS -D__STDC_FORMAT_MACROS -D__STDC_LIMIT_MACROS
>> -Wall -W -Wno-unused-parameter -Wwrite-strings
>> -Wmissing-field-initializers -pedantic -Wno-long-long
>> -Wcovered-switch-default -std=gnu++11 -fcolor-diagnostics -g -fPIC
>> -Ilib/Support -I/home/uidw8099/llvm/lib/Support -Iinclude
>> -I/home/uidw8099/llvm/include    -fno-exceptions -fno-rtti -MMD -MT
>> lib/Support/CMakeFiles/LLVMSupport.dir/ARMBuildAttrs.cpp.o -MF
>> "lib/Support/CMakeFiles/LLVMSupport.dir/ARMBuildAttrs.cpp.o.d" -o
>> lib/Support/CMakeFiles/LLVMSupport.dir/ARMBuildAttrs.cpp.o -c
>> /home/uidw8099/llvm/lib/Support/ARMBuildAttrs.cpp
>> g++: error: unrecognized command line option ‘-fcolor-diagnostics’
>> clang: error: assembler (via gcc) command failed with exit code 1 (use
>> -v to see invocation)
>>
>> At the end you can see that the -fcolor-diagnostic flag is added. Is
>> this a cmake problem or a Makelists problem in llvm configuration?
>>
>> Why is this flag being passed on to the assembler anyway?
>>
>> Cheers,
>> Red
>>
>> _______________________________________________
>> cfe-dev mailing list
>> cfe-dev at cs.uiuc.edu
>> http://lists.cs.uiuc.edu/mailman/listinfo/cfe-dev
>>
>
-------------- next part --------------
An HTML attachment was scrubbed...
URL: <http://lists.llvm.org/pipermail/cfe-dev/attachments/20140919/80580a7f/attachment.html>