cmake: Set RUNPATH for grass libraries in non-standard library path (#53)

Author: sebastic

CMakeLists.txt

@@ -52,6 +52,7 @@ set(OLIB_SOURCES ogrgrassdriver.cpp ogrgrassdatasource.cpp ogrgrasslayer.cpp ogr
 add_library(gdal_grass SHARED ${GLIB_SOURCES})
 set_target_properties(gdal_grass PROPERTIES PREFIX "")
 set_target_properties(gdal_grass PROPERTIES OUTPUT_NAME "gdal_GRASS")
+set_target_properties(gdal_grass PROPERTIES INSTALL_RPATH "${GRASS_GISBASE}/lib")
 target_include_directories(
   gdal_grass PRIVATE ${CMAKE_SOURCE_DIR} ${GDAL_INCLUDE_DIR} ${PostgreSQL_INCLUDE_DIRS}
                      ${GRASS_INCLUDE} ${PROJ_INCLUDE_DIRS})
@@ -61,6 +62,7 @@ install(TARGETS gdal_grass DESTINATION ${AUTOLOAD_DIR})
 add_library(ogr_grass SHARED ${OLIB_SOURCES})
 set_target_properties(ogr_grass PROPERTIES PREFIX "")
 set_target_properties(ogr_grass PROPERTIES OUTPUT_NAME "ogr_GRASS")
+set_target_properties(ogr_grass PROPERTIES INSTALL_RPATH "${GRASS_GISBASE}/lib")
 target_include_directories(
   ogr_grass PRIVATE ${CMAKE_SOURCE_DIR} ${GDAL_INCLUDE_DIR} ${PostgreSQL_INCLUDE_DIRS}
                     ${GRASS_INCLUDE} ${PROJ_INCLUDE_DIRS})