merge back cmake modifs from branch 0.3

git-svn-id: http://svn.eurecom.fr/openair4G/trunk@6882 818b1a75-f10b-46b9-bf7c-635c3b92a50f

cmake_targets/tools/MODULES/FindGcrypt.cmake

@@ -0,0 +1,36 @@
+# - Find gnutls
+# Find the native GCRYPT includes and library
+#
+#  GCRYPT_FOUND - True if gnutls found.
+#  GCRYPT_INCLUDE_DIR - where to find gnutls.h, etc.
+#  GCRYPT_LIBRARIES - List of libraries when using gnutls.
+
+if (GCRYPT_INCLUDE_DIR AND GCRYPT_LIBRARIES)
+  set(GCRYPT_FIND_QUIETLY TRUE)
+endif (GCRYPT_INCLUDE_DIR AND GCRYPT_LIBRARIES)
+
+# Include dir
+find_path(GCRYPT_INCLUDE_DIR
+	NAMES
+	  gcrypt.h
+)
+
+# Library
+find_library(GCRYPT_LIBRARY 
+  NAMES gcrypt
+)
+
+# handle the QUIETLY and REQUIRED arguments and set GCRYPT_FOUND to TRUE if 
+# all listed variables are TRUE
+INCLUDE(FindPackageHandleStandardArgs)
+FIND_PACKAGE_HANDLE_STANDARD_ARGS(GCRYPT DEFAULT_MSG GCRYPT_LIBRARY GCRYPT_INCLUDE_DIR)
+
+IF(GCRYPT_FOUND)
+  SET( GCRYPT_LIBRARIES ${GCRYPT_LIBRARY} )
+ELSE(GCRYPT_FOUND)
+  SET( GCRYPT_LIBRARIES )
+ENDIF(GCRYPT_FOUND)
+
+# Lastly make it so that the GCRYPT_LIBRARY and GCRYPT_INCLUDE_DIR variables
+# only show up under the advanced options in the gui cmake applications.
+MARK_AS_ADVANCED( GCRYPT_LIBRARY GCRYPT_INCLUDE_DIR )