don't _re_create fake grass lib sources on reconfigure unless gisdefs.h has changed, saves a lot of reconfigure time

kyngchaos · kyngchaos · commit 00ae45befe54 · 2013-04-02T15:03:49.000-05:00
diff --git a/src/providers/grass/CMakeLists.txt b/src/providers/grass/CMakeLists.txt
@@ -60,6 +60,11 @@ ENDIF (APPLE)
 # Fake GRASS gis library
 #
 
+# only process functions if qgsgrassgislibfunctions.cpp/h not present
+# or gisdefs.h is newer
+
+IF("${GRASS_INCLUDE_DIR}/grass/gisdefs.h" IS_NEWER_THAN "${CMAKE_CURRENT_BINARY_DIR}/qgsgrassgislibfunctions.cpp" OR "${GRASS_INCLUDE_DIR}/grass/gisdefs.h" IS_NEWER_THAN "${CMAKE_CURRENT_BINARY_DIR}/qgsgrassgislibfunctions.h")
+
 # Generate function mapping for functions used in original version
 # Create list of functions to be mapped
 SET ( FUNCTIONS
@@ -497,6 +502,8 @@ LIST ( APPEND PROTOTYPES "}\n" )
 FILE(WRITE "${CMAKE_CURRENT_BINARY_DIR}/qgsgrassgislibfunctions.cpp" ${FUNCTIONS_MAP})
 FILE(WRITE "${CMAKE_CURRENT_BINARY_DIR}/qgsgrassgislibfunctions.h" ${PROTOTYPES})
 
+ENDIF() # process functions
+
 # Build fake library
 IF(MSVC)
   SET (FAKE_LIB_GRASS_GIS "libgrass_gis.${GRASS_VERSION}")
