find_package(FLEX REQUIRED)
FLEX_TARGET(GMT_hfScanner ${moddir}/modgmt_filter_headfoot.l ${CMAKE_CURRENT_BINARY_DIR}/modgmt_filter_headfoot.cpp COMPILE_FLAGS "--header-file=${CMAKE_CURRENT_BINARY_DIR}/modgmt_filter_headfoot.h")
set_property(DIRECTORY PROPERTY ADDITIONAL_MAKE_CLEAN_FILES modgmt_filter_headfoot.h)
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} ${GHOSTSCRIPT_INCLUDES})
set(MODULE_ADDITIONAL_LIBRARIES ${GMT_LIBRARIES} ${GHOSTSCRIPT_LIBRARY})