Gmt module: Search and use libgs.

modules/gmt/ModuleSetup.cmake

@@ -4,6 +4,21 @@ set_property(DIRECTORY PROPERTY ADDITIONAL_MAKE_CLEAN_FILES modgmt_filter_headfo
 include_directories(${CMAKE_CURRENT_BINARY_DIR})
 
 find_package(GMT REQUIRED)
+
+# Search ghostscript
+if(NOT GHOSTSCRIPT_ROOT_DIR)
+ set(GHOSTSCRIPT_ROOT_DIR ${CMAKE_INSTALL_PREFIX} CACHE PATH "Ghostscript root path")
+endif()
+mark_as_advanced(CLEAR GHOSTSCRIPT_ROOT_DIR)
+find_path(GHOSTSCRIPT_INCLUDES NAMES ghostscript/gdevdsp.h ghostscript/iapi.h HINTS ${GHOSTSCRIPT_ROOT_DIR} ${CMAKE_INSTALL_PREFIX})
+find_library(GHOSTSCRIPT_LIBRARY gs HINTS ${GHOSTSCRIPT_ROOT_DIR} ${CMAKE_INSTALL_PREFIX})
+if(NOT GHOSTSCRIPT_INCLUDES)
+ message(FATAL_ERROR "Ghostscript includes not found!")
+endif()
+if(NOT GHOSTSCRIPT_LIBRARY)
+ message(FATAL_ERROR "Ghostscript library not found!")
+endif()
+
 set(MODULE_ADDITIONAL_SOURCES ${FLEX_GMT_hfScanner_OUTPUTS})
-set(MODULE_ADDITIONAL_INCLUDES ${GMT_INCLUDE_DIR})
+set(MODULE_ADDITIONAL_INCLUDES ${GMT_INCLUDE_DIR} ${GHOSTSCRIPT_INCLUDES})
-set(MODULE_ADDITIONAL_LIBRARIES ${GMT_LIBRARIES})
+set(MODULE_ADDITIONAL_LIBRARIES ${GMT_LIBRARIES} ${GHOSTSCRIPT_LIBRARY})