adapt to the new snapshot

svn path=/trunk/playground/graphics/cmake/modules/; revision=558003

cmake/modules/FindLIBGS.cmake

@@ -0,0 +1,39 @@
+# - Try to find the libgs library
+# Once done this will define
+#
+#  LIBGS_FOUND - system has libgs
+#  LIBGS_LIBRARY - Link this to use libgs
+#
+include(CheckLibraryExists)
+
+# reset vars
+set(LIBGS_LIBRARY)
+
+set(CMAKE_LIBRARY_PATH "${LIB_INSTALL_DIR}")
+find_library(LIBGS_LIBRARY NAMES gs
+  PATHS
+  /usr/lib
+  /usr/local/lib
+  ${GNUWIN32_DIR}/lib
+)
+
+if(LIBGS_LIBRARY)
+  check_library_exists(${LIBGS_LIBRARY} gsapi_new_instance "" LIBGS_HAVE_GSAPI_NEW_INSTANCE)
+
+  if(LIBGS_HAVE_GSAPI_NEW_INSTANCE)
+    set(LIBGS_FOUND TRUE)
+  endif(LIBGS_HAVE_GSAPI_NEW_INSTANCE)
+endif(LIBGS_LIBRARY)
+set(CMAKE_LIBRARY_PATH)
+
+if (LIBGS_FOUND)
+  if (NOT LIBGS_FIND_QUIETLY)
+    message(STATUS "Found the GS library: ${LIBGS_LIBRARY}")
+  endif (NOT LIBGS_FIND_QUIETLY)
+else (LIBGS_FOUND)
+  if (LIBGS_FIND_REQUIRED)
+    message(FATAL_ERROR "Could NOT find the GS library")
+  endif (LIBGS_FIND_REQUIRED)
+endif (LIBGS_FOUND)
+
+MARK_AS_ADVANCED(LIBGS_LIBRARY)