JKQtPlotter/cmake/FindCImg.cmake

138 lines
4.8 KiB
CMake

# - Try to find CImg lib
#
# CIMG_FOUND - system has CImg lib
# CIMG_INCLUDE_DIR - the CImg include directory
macro(_cimg_check_path)
if(EXISTS "${CIMG_INCLUDE_DIR}/CImg.h")
set(CIMG_FOUND TRUE)
endif()
if(NOT CIMG_FOUND)
message(STATUS "CImg include path was specified but no CImg.h file was found: ${CIMG_INCLUDE_DIR}")
endif()
endmacro()
if(NOT CIMG_INCLUDE_DIR)
message(STATUS "CImg: trying to locate CImg library")
find_path(CIMG_INCLUDE_DIR NAMES CImg.h
PATHS
${CImg_DIR}
${CImg_DIR}/include
${CImg_DIR}/cimg
${CImg_DIR}/include/cimg
${CImg_DIR}/cimg/include
${CIMG_DIR}
${CIMG_DIR}/include
${CIMG_DIR}/cimg
${CIMG_DIR}/include/cimg
${CIMG_DIR}/cimg/include
${CMAKE_INSTALL_PREFIX}
${CMAKE_INSTALL_PREFIX}/cimg
${CMAKE_INSTALL_PREFIX}/include
${CMAKE_INSTALL_PREFIX}/include/cimg
${CMAKE_INSTALL_PREFIX}/cimg/include
${CIMG_PKGCONF_INCLUDE_DIRS}
/usr/local/include
/usr/include
${KDE4_INCLUDE_DIR}
${KDE4_INCLUDE_DIR}/cimg
${KDE4_INCLUDE_DIR}/include
${KDE4_INCLUDE_DIR}/include/cimg
${KDE4_INCLUDE_DIR}/cimg/include
)
endif()
if(CIMG_INCLUDE_DIR)
_cimg_check_path()
endif()
if (CIMG_FOUND)
list(APPEND CIMG_INCLUDE_DIRS
${CIMG_INCLUDE_DIR}
)
### DISPLAY :: X11 on unix-based system and GDI on windows ###
if (UNIX OR APPLE)
find_package (X11 QUIET) # xshm xrandr are detected as well
if (X11_FOUND)
set (CIMG_INCLUDE_DIRS ${CIMG_INCLUDE_DIRS} ${X11_INCLUDE_DIR} )
set (CIMG_LIBRARIES ${CIMG_LIBRARIES} ${X11_LIBRARIES})
message (STATUS "FindCImg.cmake: X11 found.")
### X11 extension :: XSHM ###
if (X11_XShm_FOUND)
set (CIMG_DEFINITIONS ${CIMG_DEFINITIONS} -Dcimg_use_xshm)
message(STATUS "FindCImg.cmake: xshm found")
else (X11_XShm_FOUND)
message(STATUS "!!! FindCIMG.cmake !!! xshm NOT found.")
endif (X11_XShm_FOUND)
### X11 extension :: XRANDR ###
if (X11_Xrandr_FOUND)
set (CIMG_DEFINITIONS ${CIMG_DEFINITIONS} -Dcimg_use_xrandr)
set (CIMG_LIBRARIES ${CIMG_LIBRARIES} ${X11_Xrandr_LIB})
message(STATUS "FindCImg.cmake: xrandr found")
else (X11_Xrandr_FOUND)
message(STATUS "!!! FindCIMG.cmake !!! xrandr NOT found")
endif (X11_Xrandr_FOUND)
### PThread is required when using X11 display engine ###
find_package (PTHREAD QUIET)
if (PTHREAD_FOUND)
set (CIMG_INCLUDE_DIRS ${CIMG_INCLUDE_DIRS} ${PTHREAD_INCLUDE_DIRS})
set (CIMG_LIBRARIES ${CIMG_LIBRARIES} ${PTHREAD_LIBRARIES})
message(STATUS "FindCImg.cmake: pthread found")
else (PTHREAD_FOUND)
message(STATUS "!!! FindCIMG.cmake !!! pthread NOT found. pthread required by cimg for running X11.")
message(FATAL_ERROR "You need a display engine such as X11 (linux, macosx) or GDI (windows) to compile this program. Please install libs and developpement headers")
endif (PTHREAD_FOUND)
else (X11_FOUND)
message (STATUS "!!! FindCIMG.cmake !!! X11 NOT found.")
message(WARNING "FindCImg.cmake: display disabled")
set (CIMG_DEFINITIONS ${CIMG_DEFINITIONS} -Dcimg_display=0)
endif (X11_FOUND)
else (UNIX OR APPLE)
if (WIN32)
find_package(GDI QUIET)
if (GDI_FOUND)
set (CIMG_LIBRARIES ${CIMG_LIBRARIES} ${GDI_LIBRARIES})
message(STATUS "FindCImg.cmake: GDI found")
else (GDI_FOUND)
message(STATUS "!!! FindCIMG.cmake !!! GDI NOT found.")
message(WARNING "FindCImg.cmake: display disabled")
set (CIMG_DEFINITIONS ${CIMG_DEFINITIONS} -Dcimg_display=0)
endif (GDI_FOUND)
endif (WIN32)
endif (UNIX OR APPLE)
endif()
set (CIMG_INCLUDE_DIRS ${CIMG_INCLUDE_DIRS} CACHE STRING "include directories for cimg dependancies")
set (CIMG_LIBRARIES ${CIMG_LIBRARIES} CACHE STRING "cimg required and optional 3rd party libraries")
set (CIMG_DEFINITIONS ${CIMG_DEFINITIONS} CACHE STRING "cimg_use_xxx defines")
set (CIMG_C_FLAGS ${CIMG_C_FLAGS} CACHE STRING "c flags for cimg")
set (CIMG_CXX_FLAGS ${CIMG_CXX_FLAGS} CACHE STRING "c++ flags for cimg")
include(FindPackageHandleStandardArgs)
find_package_handle_standard_args(CImg DEFAULT_MSG CIMG_INCLUDE_DIR CIMG_FOUND)
mark_as_advanced(CIMG_INCLUDE_DIR)
if (CIMG_FOUND)
# Library definition
add_library(CImg::CImg INTERFACE IMPORTED)
target_compile_options(CImg::CImg INTERFACE ${CIMG_C_FLAGS} ${CIMG_CXX_FLAGS})
target_compile_definitions(CImg::CImg INTERFACE ${CIMG_DEFINITIONS})
target_link_libraries(CImg::CImg INTERFACE ${CIMG_LIBRARIES})
target_include_directories(CImg::CImg INTERFACE ${CIMG_INCLUDE_DIRS})
endif(CIMG_FOUND)