Hi All, I've been trying out CMake for building C++ applications on Windows with Clang, using the MinGW headers/libraries. This works fine, except if I need to pull in non-default system libraries that are included with MinGW, such as libpsapi.a (psapi.lib for VS). For example, if I have the following CMakeLists.txt file:
project(pstest1) add_executable(pstest1 pstest1.cpp) target_link_libraries(pstest1 psapi) This fails with a linker error: Linking CXX executable pstest1.exe c:\projects\cmake-2.8.8-win32-x86\bin\cmake.exe -E cmake_link_script CMakeFiles\pstest1.dir\link.txt --verbose=1 C:\projects\clang+llvm-3.1-i386-mingw32-EXPERIMENTAL\bin\clang++.exe CMakeFiles/pstest1.dir/pstest1.obj -o pst est1.exe *-lpsapi.lib* *c:/mingw/bin/../lib/gcc/mingw32/4.6.2/../../../../mingw32/bin/ld.exe: cannot find -lpsapi.lib* collect2: ld returned 1 exit status clang++: error: linker (via gcc) command failed with exit code 1 (use -v to see invocation) mingw32-make[2]: *** [pstest1.exe] Error 1 mingw32-make[2]: Leaving directory `C:/projects/mingw-tests/pstest1/build' mingw32-make[1]: *** [CMakeFiles/pstest1.dir/all] Error 2 mingw32-make[1]: Leaving directory `C:/projects/mingw-tests/pstest1/build' mingw32-make: *** [all] Error 2 CMake seems to be using MSVC library naming conventions for Clang in MinGW mode, but also using the GCC-style -l flags for specifying libraries. If I replace target_link_libraries(pstest1 psapi) with target_link_libraries(pstest1 "c:/MinGW/lib/libpsapi.a") then everything works as expected (I got -lpsapi on the link line). Interestingly, everything also works correctly if I use the default mingw32-gcc.exe compiler instead of clang.exe. So this seems to be a CMake issue where it detects Clang but does not know how to properly pass GCC-style linker flags to Clang. Any ideas? -- Thanks, Justin Holewinski
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