Improve readability

Modules/FindThreads.cmake

@@ -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)