- CMake: improved search for GRASS

- removed Makefiles commited by mistake some time ago


git-svn-id: http://svn.osgeo.org/qgis/trunk@6419 c8812cc2-4d05-0410-92ff-de0c093fc19c

Author: wonder

cmake/FindGRASS.cmake

@@ -1,37 +1,66 @@
 
+# macro that checks for grass installation in specified directory
 
-SET(GRASS_PREFIX "/usr" CACHE PATH "Path to GRASS base directory")
- 
+MACRO (CHECK_GRASS G_PREFIX)
 
-FIND_PATH(GRASS_INCLUDE_DIR grass/gis.h ${GRASS_PREFIX}/include)
+  FIND_PATH (GRASS_INCLUDE_DIR grass/gis.h ${G_PREFIX}/include)
 
-SET (GRASS_LIB_NAMES gis vect dig2 dbmiclient dbmibase shape dgl rtree datetime linkm form gproj)
+  SET (GRASS_LIB_NAMES gis vect dig2 dbmiclient dbmibase shape dgl rtree datetime linkm form gproj)
 
-SET (GRASS_LIBRARIES "")
+  SET (GRASS_LIBRARIES "")
 
-FOREACH (LIB ${GRASS_LIB_NAMES})
-  SET(LIB_PATH NOTFOUND)
-  FIND_LIBRARY(LIB_PATH grass_${LIB} PATHS ${GRASS_PREFIX}/lib)
+  FOREACH (LIB ${GRASS_LIB_NAMES})
+    SET(LIB_PATH NOTFOUND)
+    FIND_LIBRARY(LIB_PATH grass_${LIB} PATHS ${G_PREFIX}/lib)
 
-  IF (LIB_PATH)
-    IF (NOT GRASS_LIBRARIES STREQUAL NOTFOUND)
-      SET (GRASS_LIBRARIES ${GRASS_LIBRARIES} ${LIB_PATH})
-    ENDIF (NOT GRASS_LIBRARIES STREQUAL NOTFOUND)
-  ELSE (LIB_PATH)
-    SET (GRASS_LIBRARIES NOTFOUND)
-  ENDIF (LIB_PATH)
+    IF (LIB_PATH)
+      IF (NOT GRASS_LIBRARIES STREQUAL NOTFOUND)
+        SET (GRASS_LIBRARIES ${GRASS_LIBRARIES} ${LIB_PATH})
+      ENDIF (NOT GRASS_LIBRARIES STREQUAL NOTFOUND)
+    ELSE (LIB_PATH)
+      SET (GRASS_LIBRARIES NOTFOUND)
+    ENDIF (LIB_PATH)
 
-ENDFOREACH (LIB)
+  ENDFOREACH (LIB)
 
-IF (GRASS_INCLUDE_DIR AND GRASS_LIBRARIES)
-   SET(GRASS_FOUND TRUE)
-ENDIF (GRASS_INCLUDE_DIR AND GRASS_LIBRARIES)
+  IF (GRASS_INCLUDE_DIR AND GRASS_LIBRARIES)
+    SET (GRASS_FOUND TRUE)
+    SET (GRASS_PREFIX ${G_PREFIX})
+  ENDIF (GRASS_INCLUDE_DIR AND GRASS_LIBRARIES)
 
+ENDMACRO (CHECK_GRASS)
+
+###################################
+# search for grass installations
+
+# try to build with GRASS by default
+SET (WITH_GRASS "ON" CACHE BOOL "Determines whether GRASS plugin should be built")
+
+SET (GRASS_PREFIX "" CACHE PATH "Path to GRASS base directory")
+
+# list of paths which to search - user's choice as first
+SET (GRASS_PATHS ${GRASS_PREFIX} /usr/lib/grass)
+
+IF (WITH_GRASS)
+
+  FOREACH (G_PREFIX ${GRASS_PATHS})
+    IF (NOT GRASS_FOUND)
+      CHECK_GRASS(${G_PREFIX})
+    ENDIF (NOT GRASS_FOUND)
+  ENDFOREACH (G_PREFIX)
+
+ENDIF (WITH_GRASS)
+
+###################################
 
 IF (GRASS_FOUND)
 
+   # read grass version number and remove trailing newline
+   FILE (READ ${GRASS_PREFIX}/etc/VERSIONNUMBER GRASS_VERSION)
+   STRING(REPLACE "\n" "" GRASS_VERSION ${GRASS_VERSION})
+
    IF (NOT GRASS_FIND_QUIETLY)
-      MESSAGE(STATUS "Found GRASS: ${GRASS_PREFIX}")
+      MESSAGE(STATUS "Found GRASS: ${GRASS_PREFIX} (${GRASS_VERSION})")
    ENDIF (NOT GRASS_FIND_QUIETLY)
 
   # openpty is currently needed for GRASS shell
@@ -48,10 +77,14 @@ IF (GRASS_FOUND)
 
 ELSE (GRASS_FOUND)
 
-   IF (GRASS_FIND_REQUIRED)
-      MESSAGE(FATAL_ERROR "Could not find GRASS")
-   ELSE (GRASS_FIND_REQUIRED)
-      MESSAGE(STATUS "Could not find GRASS")
-   ENDIF (GRASS_FIND_REQUIRED)
+   IF (WITH_GRASS)
+
+     IF (GRASS_FIND_REQUIRED)
+        MESSAGE(FATAL_ERROR "Could not find GRASS")
+     ELSE (GRASS_FIND_REQUIRED)
+        MESSAGE(STATUS "Could not find GRASS")
+     ENDIF (GRASS_FIND_REQUIRED)
+
+   ENDIF (WITH_GRASS)
 
 ENDIF (GRASS_FOUND)