1 files changed, 68 insertions, 0 deletions
diff --git a/Modules/FindThreads.cmake b/Modules/FindThreads.cmake
new file mode 100644
index 0000000000..5354b4da0f
--- /dev/null
+++ b/Modules/FindThreads.cmake
@@ -0,0 +1,68 @@
+# This module determines the thread library of the system.
+# The following variables are set
+# CMAKE_THREAD_LIBS        - the thread library to link into an application (-lpthread )
+# CMAKE_USE_SPROC          - are we using sproc?
+# CMAKE_USE_WIN32_THREADS  - are we using WIN32 threads
+# CMAKE_USE_PTHREADS       - are we using pthreads
+#
+
+INCLUDE (${CMAKE_ROOT}/Modules/CheckIncludeFile.cmake)
+INCLUDE (${CMAKE_ROOT}/Modules/CheckLibraryExists.cmake)
+
+IF(CMAKE_SYSTEM MATCHES IRIX)
+  CHECK_INCLUDE_FILE("sys/prctl.h"  CMAKE_HAVE_SPROC_H)
+ENDIF(CMAKE_SYSTEM MATCHES IRIX)
+
+CHECK_INCLUDE_FILE("pthread.h" CMAKE_HAVE_PTHREAD_H)
+IF(CMAKE_HAVE_PTHREAD_H)
+  IF(NOT CMAKE_HAVE_SPROC_H)
+    CHECK_LIBRARY_EXISTS(pthreads pthread_create "" CMAKE_HAVE_PTHREADS_CREATE)
+    IF(CMAKE_HAVE_PTHREADS_CREATE)
+      SET(CMAKE_THREAD_LIBS "-lpthreads")
+    ENDIF(CMAKE_HAVE_PTHREADS_CREATE)
+    CHECK_LIBRARY_EXISTS(pthread pthread_create "" CMAKE_HAVE_PTHREAD_CREATE)
+    IF(CMAKE_HAVE_PTHREAD_CREATE)
+      SET(CMAKE_THREAD_LIBS "-lpthread")
+    ENDIF(CMAKE_HAVE_PTHREAD_CREATE)
+    IF(CMAKE_SYSTEM MATCHES "SunOS.*")
+      CHECK_LIBRARY_EXISTS(thread thr_create "" CMAKE_HAVE_THR_CREATE)
+      IF(CMAKE_HAVE_THR_CREATE)
+        SET(CMAKE_THREAD_LIBS "-lthread")
+      ENDIF(CMAKE_HAVE_THR_CREATE)
+    ENDIF(CMAKE_SYSTEM MATCHES "SunOS.*")
+  ENDIF(NOT CMAKE_HAVE_SPROC_H)
+ENDIF(CMAKE_HAVE_PTHREAD_H)
+
+IF(CMAKE_HAVE_SPROC_H)
+  SET(CMAKE_USE_SPROC 1)
+ENDIF(CMAKE_HAVE_SPROC_H)
+IF(CMAKE_THREAD_LIBS)
+  SET(CMAKE_USE_PTHREADS 1)
+ENDIF(CMAKE_THREAD_LIBS)
+
+IF(CMAKE_SYSTEM MATCHES "Windows")
+  SET(CMAKE_USE_WIN32_THREADS 1)
+ENDIF(CMAKE_SYSTEM MATCHES "Windows")
+
+IF(CMAKE_SYSTEM MATCHES "HP-UX-*")
+  SET(CMAKE_THREAD_LIBS "-lcma")
+  SET(CMAKE_USE_PTHREADS 1)
+  SET(CMAKE_HP_PTHREADS 1)
+ENDIF(CMAKE_SYSTEM MATCHES "HP-UX-*")
+
+IF(CMAKE_SYSTEM MATCHES "OSF1-V*")
+  SET(CMAKE_USE_PTHREADS 0)
+  SET(CMAKE_THREAD_LIBS )
+ENDIF(CMAKE_SYSTEM MATCHES "OSF1-V*")
+
+IF(CMAKE_SYSTEM MATCHES "FreeBSD*")
+  SET(CMAKE_USE_PTHREADS 0)
+  SET(CMAKE_THREAD_LIBS )
+ENDIF(CMAKE_SYSTEM MATCHES "FreeBSD*")
+
+IF(CMAKE_SYSTEM MATCHES "CYGWIN_NT*")
+  SET(CMAKE_USE_PTHREADS 1)
+  SET(CMAKE_THREAD_LIBS )
+  SET(CMAKE_USE_WIN32_THREADS 0)
+ENDIF(CMAKE_SYSTEM MATCHES "CYGWIN_NT*")
+