331b153be5
On Windows, when WrapRt is qt_find_pacakge()'d the first time, the result is "not found", whereas a second time it would claim that the package is found. This is due to the WrapRt target being always created even if it has no transitive dependencies, and thus a second search would check only for the existence of the target. Fix the module to only create the target if the relevant library is found. Change-Id: I5c838cbfbafb4029f96da815a0f72e4a8e6716b0 Reviewed-by: Leander Beernaert <leander.beernaert@qt.io> Reviewed-by: Simon Hausmann <simon.hausmann@qt.io>
38 lines
854 B
CMake
38 lines
854 B
CMake
# We can't create the same interface imported target multiple times, CMake will complain if we do
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# that. This can happen if the find_package call is done in multiple different subdirectories.
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if(TARGET WrapRt)
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set(WrapRt_FOUND ON)
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return()
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endif()
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set(WrapRt_FOUND OFF)
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include(CheckCXXSourceCompiles)
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include(CMakePushCheckState)
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find_library(LIBRT rt)
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cmake_push_check_state()
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if(LIBRT_FOUND)
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list(APPEND CMAKE_REQUIRED_LIBRARIES "${LIBRT}")
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endif()
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check_cxx_source_compiles("
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#include <unistd.h>
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#include <time.h>
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int main(int argc, char *argv[]) {
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timespec ts; clock_gettime(CLOCK_REALTIME, &ts);
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}" HAVE_GETTIME)
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cmake_pop_check_state()
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if(HAVE_GETTIME)
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set(WrapRt_FOUND ON)
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add_library(WrapRt INTERFACE IMPORTED)
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if (LIBRT_FOUND)
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target_link_libraries(WrapRt INTERFACE "${LIBRT}")
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endif()
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endif()
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