51 lines
1.2 KiB
CMake
51 lines
1.2 KiB
CMake
check_function_exists(gettimeofday HAVE_GETTIMEOFDAY)
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check_function_exists(rint HAVE_RINT)
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check_function_exists(mkdtemp HAVE_MKDTEMP)
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check_function_exists(bcopy HAVE_BCOPY)
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check_function_exists(mmap HAVE_MMAP)
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if (NOT MSVC)
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check_function_exists(timegm HAVE_TIMEGM)
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if (NOT HAVE_TIMEGM)
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message(FATAL_ERROR "Non-Windows platforms must support timegm()")
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endif()
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endif()
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if(HAVE_UNISTD_H)
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set(CMAKE_REQUIRED_INCLUDES ${CMAKE_INCLUDE_PATH})
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check_cxx_source_compiles(
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"#include <unistd.h>
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#if !defined(_POSIX_TIMERS) || (0 >= _POSIX_TIMERS)
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#error clock_gettime is not supported
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#endif
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int main() { return 0; }
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"
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HAVE_CLOCK_GETTIME)
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endif(HAVE_UNISTD_H)
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set(RT_LIBRARY "")
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if(HAVE_CLOCK_GETTIME)
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check_library_exists(rt clock_gettime "" HAVE_RT)
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if(HAVE_RT)
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set(RT_LIBRARY rt)
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endif(HAVE_RT)
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endif(HAVE_CLOCK_GETTIME)
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set(DL_LIBRARY "")
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check_cxx_source_compiles(
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"#include <dlfcn.h>
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int main(void) {
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return 0;
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}
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"
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HAVE_DLFCN_H)
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if(HAVE_DLFCN_H)
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check_library_exists(dl dlerror "" HAVE_DL)
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if(HAVE_DL)
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set(DL_LIBRARY "dl")
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endif()
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endif()
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