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FindThreads: make the call to try_run() work also if only C++ is enabled

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This isn't enough to make the whole module work with only C++ enabled.
This commit is contained in:
Rolf Eike Beer 2015-09-22 05:46:56 +02:00 committed by Brad King
parent 9924a212f6
commit 0b38424cf2
1 changed files with 8 additions and 1 deletions
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9
Modules/FindThreads.cmake
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@ -91,11 +91,18 @@ macro(_check_pthreads_flag)
# If we did not found -lpthread, -lpthread, or -lthread, look for -pthread # If we did not found -lpthread, -lpthread, or -lthread, look for -pthread
if(NOT DEFINED THREADS_HAVE_PTHREAD_ARG) if(NOT DEFINED THREADS_HAVE_PTHREAD_ARG)
message(STATUS "Check if compiler accepts -pthread") message(STATUS "Check if compiler accepts -pthread")
if(CMAKE_C_COMPILER_LOADED)
set(_threads_src ${CMAKE_CURRENT_LIST_DIR}/CheckForPthreads.c)
elseif(CMAKE_CXX_COMPILER_LOADED)
set(_threads_src ${CMAKE_BINARY_DIR}${CMAKE_FILES_DIRECTORY}/FindThreads/CheckForPthreads.cxx)
configure_file(${CMAKE_CURRENT_LIST_DIR}/CheckForPthreads.c "${_threads_src}" COPYONLY)
endif()
try_run(THREADS_PTHREAD_ARG THREADS_HAVE_PTHREAD_ARG try_run(THREADS_PTHREAD_ARG THREADS_HAVE_PTHREAD_ARG
${CMAKE_BINARY_DIR} ${CMAKE_BINARY_DIR}
${CMAKE_CURRENT_LIST_DIR}/CheckForPthreads.c ${_threads_src}
CMAKE_FLAGS -DLINK_LIBRARIES:STRING=-pthread CMAKE_FLAGS -DLINK_LIBRARIES:STRING=-pthread
COMPILE_OUTPUT_VARIABLE OUTPUT) COMPILE_OUTPUT_VARIABLE OUTPUT)
unset(_threads_src)
if(THREADS_HAVE_PTHREAD_ARG) if(THREADS_HAVE_PTHREAD_ARG)
if(THREADS_PTHREAD_ARG STREQUAL "2") if(THREADS_PTHREAD_ARG STREQUAL "2")