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FindThreads: avoid useless checks if a thread library is already found

This commit is contained in:
Rolf Eike Beer 2014-03-25 23:47:49 +01:00
parent fdf7bd27a3
commit 858ce31f4c
1 changed files with 15 additions and 16 deletions
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31
Modules/FindThreads.cmake
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@ -63,32 +63,31 @@ else()
set(CMAKE_THREAD_LIBS_INIT "")
set(CMAKE_HAVE_THREADS_LIBRARY 1)
set(Threads_FOUND TRUE)
endif()
else()
if(NOT CMAKE_HAVE_THREADS_LIBRARY)
# Do we have -lpthreads
CHECK_LIBRARY_EXISTS(pthreads pthread_create "" CMAKE_HAVE_PTHREADS_CREATE)
if(CMAKE_HAVE_PTHREADS_CREATE)
set(CMAKE_THREAD_LIBS_INIT "-lpthreads")
set(CMAKE_HAVE_THREADS_LIBRARY 1)
set(Threads_FOUND TRUE)
endif()
else()
# Ok, how about -lpthread
CHECK_LIBRARY_EXISTS(pthread pthread_create "" CMAKE_HAVE_PTHREAD_CREATE)
if(CMAKE_HAVE_PTHREAD_CREATE)
set(CMAKE_THREAD_LIBS_INIT "-lpthread")
set(CMAKE_HAVE_THREADS_LIBRARY 1)
set(Threads_FOUND TRUE)
endif()
if(CMAKE_SYSTEM MATCHES "SunOS.*")
# On sun also check for -lthread
CHECK_LIBRARY_EXISTS(thread thr_create "" CMAKE_HAVE_THR_CREATE)
if(CMAKE_HAVE_THR_CREATE)
set(CMAKE_THREAD_LIBS_INIT "-lthread")
# Ok, how about -lpthread
CHECK_LIBRARY_EXISTS(pthread pthread_create "" CMAKE_HAVE_PTHREAD_CREATE)
if(CMAKE_HAVE_PTHREAD_CREATE)
set(CMAKE_THREAD_LIBS_INIT "-lpthread")
set(CMAKE_HAVE_THREADS_LIBRARY 1)
set(Threads_FOUND TRUE)
elseif(CMAKE_SYSTEM MATCHES "SunOS.*")
# On sun also check for -lthread
CHECK_LIBRARY_EXISTS(thread thr_create "" CMAKE_HAVE_THR_CREATE)
if(CMAKE_HAVE_THR_CREATE)
set(CMAKE_THREAD_LIBS_INIT "-lthread")
set(CMAKE_HAVE_THREADS_LIBRARY 1)
set(Threads_FOUND TRUE)
endif()
endif()
endif()
endif()