BUG: fix for 6586, set THREADS_FOUND

Modules/FindThreads.cmake

@@ -8,6 +8,7 @@
 
 INCLUDE (CheckIncludeFiles)
 INCLUDE (CheckLibraryExists)
+SET(Threads_FOUND FALSE)
 
 # Do we have sproc?
 IF(CMAKE_SYSTEM MATCHES IRIX)
@@ -30,11 +31,13 @@ ELSE(CMAKE_HAVE_SPROC_H)
       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)
       # 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)
       IF(CMAKE_SYSTEM MATCHES "SunOS.*")
@@ -43,6 +46,7 @@ ELSE(CMAKE_HAVE_SPROC_H)
         IF(CMAKE_HAVE_THR_CREATE)
           SET(CMAKE_THREAD_LIBS_INIT "-lthread")
           SET(CMAKE_HAVE_THREADS_LIBRARY 1)
+          SET(Threads_FOUND TRUE)
         ENDIF(CMAKE_HAVE_THR_CREATE)
       ENDIF(CMAKE_SYSTEM MATCHES "SunOS.*")
     ENDIF(NOT THREADS_HAVE_PTHREAD_ARG)
@@ -58,6 +62,7 @@ ELSE(CMAKE_HAVE_SPROC_H)
           COMPILE_OUTPUT_VARIABLE OUTPUT)
         IF(THREADS_HAVE_PTHREAD_ARG)
           IF(THREADS_PTHREAD_ARG MATCHES "^2$")
+            SET(Threads_FOUND TRUE)
             MESSAGE(STATUS "Check if compiler accepts -pthread - yes")
           ELSE(THREADS_PTHREAD_ARG MATCHES "^2$")
             MESSAGE(STATUS "Check if compiler accepts -pthread - no")
@@ -73,6 +78,7 @@ ELSE(CMAKE_HAVE_SPROC_H)
         ENDIF(THREADS_HAVE_PTHREAD_ARG)
       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(NOT CMAKE_HAVE_THREADS_LIBRARY)
@@ -81,10 +87,12 @@ ENDIF(CMAKE_HAVE_SPROC_H)
 
 IF(CMAKE_THREAD_LIBS_INIT)
   SET(CMAKE_USE_PTHREADS_INIT 1)
+  SET(Threads_FOUND TRUE)
 ENDIF(CMAKE_THREAD_LIBS_INIT)
 
 IF(CMAKE_SYSTEM MATCHES "Windows")
   SET(CMAKE_USE_WIN32_THREADS_INIT 1)
+  SET(Threads_FOUND TRUE)
 ENDIF(CMAKE_SYSTEM MATCHES "Windows")
 
 IF(CMAKE_USE_PTHREADS_INIT)
@@ -101,6 +109,7 @@ IF(CMAKE_USE_PTHREADS_INIT)
     IF(CMAKE_HAVE_HP_CMA)
       SET(CMAKE_THREAD_LIBS_INIT "-lcma")
       SET(CMAKE_HP_PTHREADS_INIT 1)
+      SET(Threads_FOUND TRUE)
     ENDIF(CMAKE_HAVE_HP_CMA)
     SET(CMAKE_USE_PTHREADS_INIT 1)
   ENDIF(CMAKE_SYSTEM MATCHES "HP-UX-*")
@@ -112,8 +121,11 @@ IF(CMAKE_USE_PTHREADS_INIT)
 
   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(CMAKE_USE_PTHREADS_INIT)
 
+INCLUDE(FindPackageHandleStandardArgs)
+FIND_PACKAGE_HANDLE_STANDARD_ARGS(Threads DEFAULT_MSG Threads_FOUND)