On 05/12/2015 04:42, Larry Gritz wrote:
I think it should be as simple as

CXX=clang cmake ~/git/oiio && make

See if that works?


On Dec 4, 2015, at 8:13 AM, Richard Shaw <[email protected]>
wrote:

I'm playing around with clang but I'm not very familiar how to do
that with cmake... I told cmake to to use the clang complier but do
I need to tell it anything about linking?

$ cmake -DCMAKE_C_COMPILER=/usr/bin/clang
-DCMAKE_CXX_COMPILER=/usr/bin/clang ~/git/oiio/

CMAKE_CXX_COMPILER should be clang++ ??

The first time it tries to link I get this:

[  8%] Linking CXX executable array_view_test cd
/home/build/build/OpenImageIO/src/libutil && /usr/bin/cmake -E
cmake_link_script CMakeFiles/array_view_test.dir/link.txt
--verbose=1 /usr/bin/clang   -O3 -DNDEBUG
CMakeFiles/array_view_test.dir/array_view_test.cpp.o  -o
array_view_test -rdynamic libOpenImageIO_Util.so.1.6.6
-lboost_filesystem -lboost_regex -lboost_system -lboost_thread -lrt
-ldl -lHalf -lIex -lImath -lIlmThread -lpthread
-Wl,-rpath,/home/build/build/OpenImageIO/src/libutil /usr/bin/ld:
CMakeFiles/array_view_test.dir/array_view_test.cpp.o: undefined
reference to symbol '_ZNSo9_M_insertIdEERSoT_@@GLIBCXX_3.4.9'
/usr/lib64/libstdc++.so.6: error adding symbols: DSO missing from
command line clang: error: linker command failed with exit code 1
(use -v to see invocation)

"undefined reference to GLIBCXX_3.4.9" which it is trying to load from
/usr/lib64/libstdc++.so.6 - try setting LD_LIBRARY_PATH in your
environment to point at a newer gcc build so it can find an updated
libstdc++ before the older system one.


--
FreeBSD - the place to B...Software Developing

Shane Ambler


--
FreeBSD - the place to B...Software Developing

Shane Ambler

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