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Fix compilation of multithreading example on Debian with CMake 3.5.1

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Compilation of the multithreading example on Debian with CMake 3.5.1 would
fail with the following error because ${PTHREAD} was not set:
    [ 61%] Linking CXX executable bin/multithreading
    /usr/bin/ld: CMakeFiles/multithreading.dir/multithreading/multithreading.cpp.o: undefined reference to symbol 'pthread_create@@GLIBC_2.2.5'
This patch uses ${CMAKE_THREAD_LIB_INIT} [1] instead, initialized using
find_package(Threads REQUIRED).

[1] https://cmake.org/cmake/help/v2.8.12/cmake.html#module:FindThreads
This commit is contained in:
Philipp Zabel 2016-04-03 11:05:12 +02:00
parent 683515d12b
commit b6f3b7614b
1 changed files with 2 additions and 1 deletions
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3
CMakeLists.txt
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@ -20,6 +20,7 @@ ELSE(WIN32)
find_library(VULKAN_LIB NAMES libvulkan.so PATHS ${CMAKE_SOURCE_DIR}/libs/vulkan)
find_package(ASSIMP REQUIRED)
find_package(XCB REQUIRED)
find_package(Threads REQUIRED)
set(CMAKE_CXX_FLAGS "${CMAKE_CXX_FLAGS} -DVK_USE_PLATFORM_XCB_KHR")
# Todo : android?
ENDIF(WIN32)
@ -44,7 +45,7 @@ function(buildExample EXAMPLE_NAME)
target_link_libraries(${EXAMPLE_NAME} ${VULKAN_LIB} ${ASSIMP_LIBRARIES} ${WINLIBS})
else(WIN32)
add_executable(${EXAMPLE_NAME} ${EXAMPLE_NAME}/${EXAMPLE_NAME}.cpp ${SOURCE})
target_link_libraries(${EXAMPLE_NAME} ${VULKAN_LIB} ${ASSIMP_LIBRARIES} ${PTHREAD})
target_link_libraries(${EXAMPLE_NAME} ${VULKAN_LIB} ${ASSIMP_LIBRARIES} ${CMAKE_THREAD_LIBS_INIT})
endif(WIN32)
endfunction(buildExample)