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Merge topic 'fix-11333-use-correct-thread-flags' 

6b3993b CheckSymbolExists: Use IMMEDIATE flag for configure_file (#11333)
fd61be7 FindThreads: Try pthreads with no special option first (#11333)
This commit is contained in:
David Cole 2011-08-25 15:40:40 -04:00 committed by CMake Topic Stage
parent 39f0fa725e 6b3993b0bf
commit f5115f91d9
2 changed files with 30 additions and 21 deletions
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2
Modules/CheckSymbolExists.cmake
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@ -63,7 +63,7 @@ MACRO(_CHECK_SYMBOL_EXISTS SOURCEFILE SYMBOL FILES VARIABLE)
"${CMAKE_CONFIGURABLE_FILE_CONTENT}\nvoid cmakeRequireSymbol(int dummy,...){(void)dummy;}\nint main()\n{\n#ifndef ${SYMBOL}\n cmakeRequireSymbol(0,&${SYMBOL});\n#endif\n return 0;\n}\n")
CONFIGURE_FILE("${CMAKE_ROOT}/Modules/CMakeConfigurableFile.in"
"${SOURCEFILE}" @ONLY)
"${SOURCEFILE}" @ONLY IMMEDIATE)
MESSAGE(STATUS "Looking for ${SYMBOL}")
TRY_COMPILE(${VARIABLE}

49
Modules/FindThreads.cmake
View File

@ -23,6 +23,7 @@
INCLUDE (CheckIncludeFiles)
INCLUDE (CheckLibraryExists)
INCLUDE (CheckSymbolExists)
SET(Threads_FOUND FALSE)
# Do we have sproc?
@ -44,33 +45,41 @@ ELSE()
#
SET(CMAKE_HAVE_THREADS_LIBRARY)
IF(NOT THREADS_HAVE_PTHREAD_ARG)
# 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")
# Check if pthread functions are in normal C library
CHECK_SYMBOL_EXISTS(pthread_create pthread.h CMAKE_HAVE_LIBC_CREATE)
IF(CMAKE_HAVE_LIBC_CREATE)
SET(CMAKE_THREAD_LIBS_INIT "")
SET(CMAKE_HAVE_THREADS_LIBRARY 1)
SET(Threads_FOUND TRUE)
ENDIF()
# 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(Threads_FOUND TRUE)
SET(CMAKE_HAVE_THREADS_LIBRARY 1)
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")
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()
ENDIF(CMAKE_SYSTEM MATCHES "SunOS.*")
# 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")
SET(CMAKE_HAVE_THREADS_LIBRARY 1)
SET(Threads_FOUND TRUE)
ENDIF()
ENDIF(CMAKE_SYSTEM MATCHES "SunOS.*")
ENDIF(NOT CMAKE_HAVE_THREADS_LIBRARY)
ENDIF(NOT THREADS_HAVE_PTHREAD_ARG)
IF(NOT CMAKE_HAVE_THREADS_LIBRARY)
@ -111,7 +120,7 @@ ELSE()
ENDIF(CMAKE_HAVE_PTHREAD_H)
ENDIF()
IF(CMAKE_THREAD_LIBS_INIT)
IF(CMAKE_THREAD_LIBS_INIT OR CMAKE_HAVE_LIBC_CREATE)
SET(CMAKE_USE_PTHREADS_INIT 1)
SET(Threads_FOUND TRUE)
ENDIF()