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Improve readability

This commit is contained in:
Philip Lowman 2009-09-20 08:03:45 -04:00
parent 2396ff9889
commit 42618d5524
1 changed files with 27 additions and 16 deletions
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43
Modules/FindThreads.cmake
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@ -13,33 +13,39 @@ SET(Threads_FOUND FALSE)
# Do we have sproc?
IF(CMAKE_SYSTEM MATCHES IRIX)
CHECK_INCLUDE_FILES("sys/types.h;sys/prctl.h" CMAKE_HAVE_SPROC_H)
ENDIF(CMAKE_SYSTEM MATCHES IRIX)
ENDIF()
IF(CMAKE_HAVE_SPROC_H)
# We have sproc
SET(CMAKE_USE_SPROC_INIT 1)
ELSE(CMAKE_HAVE_SPROC_H)
ELSE()
# Do we have pthreads?
CHECK_INCLUDE_FILES("pthread.h" CMAKE_HAVE_PTHREAD_H)
IF(CMAKE_HAVE_PTHREAD_H)
#
# We have pthread.h
# Let's check for the library now.
#
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")
SET(CMAKE_HAVE_THREADS_LIBRARY 1)
SET(Threads_FOUND TRUE)
ENDIF(CMAKE_HAVE_PTHREADS_CREATE)
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(CMAKE_HAVE_PTHREAD_CREATE)
ENDIF()
IF(CMAKE_SYSTEM MATCHES "SunOS.*")
# On sun also check for -lthread
CHECK_LIBRARY_EXISTS(thread thr_create "" CMAKE_HAVE_THR_CREATE)
@ -47,8 +53,9 @@ ELSE(CMAKE_HAVE_SPROC_H)
SET(CMAKE_THREAD_LIBS_INIT "-lthread")
SET(CMAKE_HAVE_THREADS_LIBRARY 1)
SET(Threads_FOUND TRUE)
ENDIF(CMAKE_HAVE_THR_CREATE)
ENDIF()
ENDIF(CMAKE_SYSTEM MATCHES "SunOS.*")
ENDIF(NOT THREADS_HAVE_PTHREAD_ARG)
IF(NOT CMAKE_HAVE_THREADS_LIBRARY)
@ -60,40 +67,44 @@ ELSE(CMAKE_HAVE_SPROC_H)
${CMAKE_ROOT}/Modules/CheckForPthreads.c
CMAKE_FLAGS -DLINK_LIBRARIES:STRING=-pthread
COMPILE_OUTPUT_VARIABLE OUTPUT)
IF(THREADS_HAVE_PTHREAD_ARG)
IF(THREADS_PTHREAD_ARG MATCHES "^2$")
SET(Threads_FOUND TRUE)
MESSAGE(STATUS "Check if compiler accepts -pthread - yes")
ELSE(THREADS_PTHREAD_ARG MATCHES "^2$")
ELSE()
MESSAGE(STATUS "Check if compiler accepts -pthread - no")
FILE(APPEND
${CMAKE_BINARY_DIR}${CMAKE_FILES_DIRECTORY}/CMakeError.log
"Determining if compiler accepts -pthread returned ${THREADS_PTHREAD_ARG} instead of 2. The compiler had the following output:\n${OUTPUT}\n\n")
ENDIF(THREADS_PTHREAD_ARG MATCHES "^2$")
ELSE(THREADS_HAVE_PTHREAD_ARG)
ENDIF()
ELSE()
MESSAGE(STATUS "Check if compiler accepts -pthread - no")
FILE(APPEND
${CMAKE_BINARY_DIR}${CMAKE_FILES_DIRECTORY}/CMakeError.log
"Determining if compiler accepts -pthread failed with the following output:\n${OUTPUT}\n\n")
ENDIF(THREADS_HAVE_PTHREAD_ARG)
ENDIF()
ENDIF("THREADS_HAVE_PTHREAD_ARG" MATCHES "^THREADS_HAVE_PTHREAD_ARG")
IF(THREADS_HAVE_PTHREAD_ARG)
SET(Threads_FOUND TRUE)
SET(CMAKE_THREAD_LIBS_INIT "-pthread")
ENDIF(THREADS_HAVE_PTHREAD_ARG)
ENDIF()
ENDIF(NOT CMAKE_HAVE_THREADS_LIBRARY)
ENDIF(CMAKE_HAVE_PTHREAD_H)
ENDIF(CMAKE_HAVE_SPROC_H)
ENDIF()
IF(CMAKE_THREAD_LIBS_INIT)
SET(CMAKE_USE_PTHREADS_INIT 1)
SET(Threads_FOUND TRUE)
ENDIF(CMAKE_THREAD_LIBS_INIT)
ENDIF()
IF(CMAKE_SYSTEM MATCHES "Windows")
SET(CMAKE_USE_WIN32_THREADS_INIT 1)
SET(Threads_FOUND TRUE)
ENDIF(CMAKE_SYSTEM MATCHES "Windows")
ENDIF()
IF(CMAKE_USE_PTHREADS_INIT)
IF(CMAKE_SYSTEM MATCHES "HP-UX-*")
@ -112,19 +123,19 @@ IF(CMAKE_USE_PTHREADS_INIT)
SET(Threads_FOUND TRUE)
ENDIF(CMAKE_HAVE_HP_CMA)
SET(CMAKE_USE_PTHREADS_INIT 1)
ENDIF(CMAKE_SYSTEM MATCHES "HP-UX-*")
ENDIF()
IF(CMAKE_SYSTEM MATCHES "OSF1-V*")
SET(CMAKE_USE_PTHREADS_INIT 0)
SET(CMAKE_THREAD_LIBS_INIT )
ENDIF(CMAKE_SYSTEM MATCHES "OSF1-V*")
ENDIF()
IF(CMAKE_SYSTEM MATCHES "CYGWIN_NT*")
SET(CMAKE_USE_PTHREADS_INIT 1)
SET(Threads_FOUND TRUE)
SET(CMAKE_THREAD_LIBS_INIT )
SET(CMAKE_USE_WIN32_THREADS_INIT 0)
ENDIF(CMAKE_SYSTEM MATCHES "CYGWIN_NT*")
ENDIF()
ENDIF(CMAKE_USE_PTHREADS_INIT)
INCLUDE(FindPackageHandleStandardArgs)