CMake/Modules/FindFLTK.cmake

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CMake

# Distributed under the OSI-approved BSD 3-Clause License. See accompanying
# file Copyright.txt or https://cmake.org/licensing for details.
#.rst:
# FindFLTK
# --------
#
# Find the native FLTK includes and library
#
#
#
# By default FindFLTK.cmake will search for all of the FLTK components
# and add them to the FLTK_LIBRARIES variable.
#
# ::
#
# You can limit the components which get placed in FLTK_LIBRARIES by
# defining one or more of the following three options:
#
#
#
# ::
#
# FLTK_SKIP_OPENGL, set to true to disable searching for opengl and
# the FLTK GL library
# FLTK_SKIP_FORMS, set to true to disable searching for fltk_forms
# FLTK_SKIP_IMAGES, set to true to disable searching for fltk_images
#
#
#
# ::
#
# FLTK_SKIP_FLUID, set to true if the fluid binary need not be present
# at build time
#
#
#
# The following variables will be defined:
#
# ::
#
# FLTK_FOUND, True if all components not skipped were found
# FLTK_INCLUDE_DIR, where to find include files
# FLTK_LIBRARIES, list of fltk libraries you should link against
# FLTK_FLUID_EXECUTABLE, where to find the Fluid tool
# FLTK_WRAP_UI, This enables the FLTK_WRAP_UI command
#
#
#
# The following cache variables are assigned but should not be used.
# See the FLTK_LIBRARIES variable instead.
#
# ::
#
# FLTK_BASE_LIBRARY = the full path to fltk.lib
# FLTK_GL_LIBRARY = the full path to fltk_gl.lib
# FLTK_FORMS_LIBRARY = the full path to fltk_forms.lib
# FLTK_IMAGES_LIBRARY = the full path to fltk_images.lib
if(NOT FLTK_SKIP_OPENGL)
find_package(OpenGL)
endif()
# Platform dependent libraries required by FLTK
if(WIN32)
if(NOT CYGWIN)
if(BORLAND)
set( FLTK_PLATFORM_DEPENDENT_LIBS import32 )
else()
set( FLTK_PLATFORM_DEPENDENT_LIBS wsock32 comctl32 )
endif()
endif()
endif()
if(UNIX)
include(${CMAKE_CURRENT_LIST_DIR}/FindX11.cmake)
find_library(FLTK_MATH_LIBRARY m)
set( FLTK_PLATFORM_DEPENDENT_LIBS ${X11_LIBRARIES} ${FLTK_MATH_LIBRARY})
endif()
if(APPLE)
set( FLTK_PLATFORM_DEPENDENT_LIBS "-framework Carbon -framework Cocoa -framework ApplicationServices -lz")
endif()
# If FLTK_INCLUDE_DIR is already defined we assigne its value to FLTK_DIR
if(FLTK_INCLUDE_DIR)
set(FLTK_DIR ${FLTK_INCLUDE_DIR})
endif()
# If FLTK has been built using CMake we try to find everything directly
set(FLTK_DIR_STRING "directory containing FLTKConfig.cmake. This is either the root of the build tree, or PREFIX/lib/fltk for an installation.")
# Search only if the location is not already known.
if(NOT FLTK_DIR)
# Get the system search path as a list.
file(TO_CMAKE_PATH "$ENV{PATH}" FLTK_DIR_SEARCH2)
# Construct a set of paths relative to the system search path.
set(FLTK_DIR_SEARCH "")
foreach(dir ${FLTK_DIR_SEARCH2})
set(FLTK_DIR_SEARCH ${FLTK_DIR_SEARCH} "${dir}/../lib/fltk")
endforeach()
string(REPLACE "//" "/" FLTK_DIR_SEARCH "${FLTK_DIR_SEARCH}")
#
# Look for an installation or build tree.
#
find_path(FLTK_DIR FLTKConfig.cmake
# Look for an environment variable FLTK_DIR.
HINTS
ENV FLTK_DIR
# Look in places relative to the system executable search path.
${FLTK_DIR_SEARCH}
PATHS
# Look in standard UNIX install locations.
/usr/local/lib/fltk
/usr/lib/fltk
/usr/local/fltk
/usr/X11R6/include
# Help the user find it if we cannot.
DOC "The ${FLTK_DIR_STRING}"
)
endif()
# Check if FLTK was built using CMake
if(EXISTS ${FLTK_DIR}/FLTKConfig.cmake)
set(FLTK_BUILT_WITH_CMAKE 1)
endif()
if(FLTK_BUILT_WITH_CMAKE)
set(FLTK_FOUND 1)
include(${FLTK_DIR}/FLTKConfig.cmake)
# Fluid
if(FLUID_COMMAND)
set(FLTK_FLUID_EXECUTABLE ${FLUID_COMMAND} CACHE FILEPATH "Fluid executable")
else()
find_program(FLTK_FLUID_EXECUTABLE fluid PATHS
${FLTK_EXECUTABLE_DIRS}
${FLTK_EXECUTABLE_DIRS}/RelWithDebInfo
${FLTK_EXECUTABLE_DIRS}/Debug
${FLTK_EXECUTABLE_DIRS}/Release
NO_SYSTEM_PATH)
endif()
# mark_as_advanced(FLTK_FLUID_EXECUTABLE)
set(FLTK_INCLUDE_DIR ${FLTK_DIR})
link_directories(${FLTK_LIBRARY_DIRS})
set(FLTK_BASE_LIBRARY fltk)
set(FLTK_GL_LIBRARY fltk_gl)
set(FLTK_FORMS_LIBRARY fltk_forms)
set(FLTK_IMAGES_LIBRARY fltk_images)
# Add the extra libraries
load_cache(${FLTK_DIR}
READ_WITH_PREFIX
FL FLTK_USE_SYSTEM_JPEG
FL FLTK_USE_SYSTEM_PNG
FL FLTK_USE_SYSTEM_ZLIB
)
set(FLTK_IMAGES_LIBS "")
if(FLFLTK_USE_SYSTEM_JPEG)
set(FLTK_IMAGES_LIBS ${FLTK_IMAGES_LIBS} fltk_jpeg)
endif()
if(FLFLTK_USE_SYSTEM_PNG)
set(FLTK_IMAGES_LIBS ${FLTK_IMAGES_LIBS} fltk_png)
endif()
if(FLFLTK_USE_SYSTEM_ZLIB)
set(FLTK_IMAGES_LIBS ${FLTK_IMAGES_LIBS} fltk_zlib)
endif()
set(FLTK_IMAGES_LIBS "${FLTK_IMAGES_LIBS}" CACHE INTERNAL
"Extra libraries for fltk_images library.")
else()
# if FLTK was not built using CMake
# Find fluid executable.
find_program(FLTK_FLUID_EXECUTABLE fluid ${FLTK_INCLUDE_DIR}/fluid)
# Use location of fluid to help find everything else.
set(FLTK_INCLUDE_SEARCH_PATH "")
set(FLTK_LIBRARY_SEARCH_PATH "")
if(FLTK_FLUID_EXECUTABLE)
get_filename_component(FLTK_BIN_DIR "${FLTK_FLUID_EXECUTABLE}" PATH)
set(FLTK_INCLUDE_SEARCH_PATH ${FLTK_INCLUDE_SEARCH_PATH}
${FLTK_BIN_DIR}/../include ${FLTK_BIN_DIR}/..)
set(FLTK_LIBRARY_SEARCH_PATH ${FLTK_LIBRARY_SEARCH_PATH}
${FLTK_BIN_DIR}/../lib)
set(FLTK_WRAP_UI 1)
endif()
#
# Try to find FLTK include dir using fltk-config
#
if(UNIX)
# Use fltk-config to generate a list of possible include directories
find_program(FLTK_CONFIG_SCRIPT fltk-config PATHS ${FLTK_BIN_DIR})
if(FLTK_CONFIG_SCRIPT)
if(NOT FLTK_INCLUDE_DIR)
exec_program(${FLTK_CONFIG_SCRIPT} ARGS --cxxflags OUTPUT_VARIABLE FLTK_CXXFLAGS)
if(FLTK_CXXFLAGS)
string(REGEX MATCHALL "-I[^ ]*" _fltk_temp_dirs ${FLTK_CXXFLAGS})
string(REPLACE "-I" "" _fltk_temp_dirs "${_fltk_temp_dirs}")
foreach(_dir ${_fltk_temp_dirs})
string(STRIP ${_dir} _output)
list(APPEND _FLTK_POSSIBLE_INCLUDE_DIRS ${_output})
endforeach()
endif()
endif()
endif()
endif()
set(FLTK_INCLUDE_SEARCH_PATH ${FLTK_INCLUDE_SEARCH_PATH}
/usr/local/fltk
/usr/X11R6/include
${_FLTK_POSSIBLE_INCLUDE_DIRS}
)
find_path(FLTK_INCLUDE_DIR
NAMES FL/Fl.h FL/Fl.H # fltk 1.1.9 has Fl.H (#8376)
PATHS ${FLTK_INCLUDE_SEARCH_PATH})
#
# Try to find FLTK library
if(UNIX)
if(FLTK_CONFIG_SCRIPT)
exec_program(${FLTK_CONFIG_SCRIPT} ARGS --libs OUTPUT_VARIABLE _FLTK_POSSIBLE_LIBS)
if(_FLTK_POSSIBLE_LIBS)
get_filename_component(_FLTK_POSSIBLE_LIBRARY_DIR ${_FLTK_POSSIBLE_LIBS} PATH)
endif()
endif()
endif()
set(FLTK_LIBRARY_SEARCH_PATH ${FLTK_LIBRARY_SEARCH_PATH}
/usr/local/fltk/lib
/usr/X11R6/lib
${FLTK_INCLUDE_DIR}/lib
${_FLTK_POSSIBLE_LIBRARY_DIR}
)
find_library(FLTK_BASE_LIBRARY NAMES fltk fltkd
PATHS ${FLTK_LIBRARY_SEARCH_PATH})
find_library(FLTK_GL_LIBRARY NAMES fltkgl fltkgld fltk_gl
PATHS ${FLTK_LIBRARY_SEARCH_PATH})
find_library(FLTK_FORMS_LIBRARY NAMES fltkforms fltkformsd fltk_forms
PATHS ${FLTK_LIBRARY_SEARCH_PATH})
find_library(FLTK_IMAGES_LIBRARY NAMES fltkimages fltkimagesd fltk_images
PATHS ${FLTK_LIBRARY_SEARCH_PATH})
# Find the extra libraries needed for the fltk_images library.
if(UNIX)
if(FLTK_CONFIG_SCRIPT)
exec_program(${FLTK_CONFIG_SCRIPT} ARGS --use-images --ldflags
OUTPUT_VARIABLE FLTK_IMAGES_LDFLAGS)
set(FLTK_LIBS_EXTRACT_REGEX ".*-lfltk_images (.*) -lfltk.*")
if("${FLTK_IMAGES_LDFLAGS}" MATCHES "${FLTK_LIBS_EXTRACT_REGEX}")
string(REGEX REPLACE " +" ";" FLTK_IMAGES_LIBS "${CMAKE_MATCH_1}")
# The EXEC_PROGRAM will not be inherited into subdirectories from
# the file that originally included this module. Save the answer.
set(FLTK_IMAGES_LIBS "${FLTK_IMAGES_LIBS}" CACHE INTERNAL
"Extra libraries for fltk_images library.")
endif()
endif()
endif()
endif()
# Append all of the required libraries together (by default, everything)
set(FLTK_LIBRARIES)
if(NOT FLTK_SKIP_IMAGES)
list(APPEND FLTK_LIBRARIES ${FLTK_IMAGES_LIBRARY})
endif()
if(NOT FLTK_SKIP_FORMS)
list(APPEND FLTK_LIBRARIES ${FLTK_FORMS_LIBRARY})
endif()
if(NOT FLTK_SKIP_OPENGL)
list(APPEND FLTK_LIBRARIES ${FLTK_GL_LIBRARY} ${OPENGL_gl_LIBRARY})
list(APPEND FLTK_INCLUDE_DIR ${OPENGL_INCLUDE_DIR})
list(REMOVE_DUPLICATES FLTK_INCLUDE_DIR)
endif()
list(APPEND FLTK_LIBRARIES ${FLTK_BASE_LIBRARY})
include(${CMAKE_CURRENT_LIST_DIR}/FindPackageHandleStandardArgs.cmake)
if(FLTK_SKIP_FLUID)
FIND_PACKAGE_HANDLE_STANDARD_ARGS(FLTK DEFAULT_MSG FLTK_LIBRARIES FLTK_INCLUDE_DIR)
else()
FIND_PACKAGE_HANDLE_STANDARD_ARGS(FLTK DEFAULT_MSG FLTK_LIBRARIES FLTK_INCLUDE_DIR FLTK_FLUID_EXECUTABLE)
endif()
if(FLTK_FOUND)
if(APPLE)
set(FLTK_LIBRARIES ${FLTK_PLATFORM_DEPENDENT_LIBS} ${FLTK_LIBRARIES})
else()
set(FLTK_LIBRARIES ${FLTK_LIBRARIES} ${FLTK_PLATFORM_DEPENDENT_LIBS})
endif()
# The following deprecated settings are for compatibility with CMake 1.4
set (HAS_FLTK ${FLTK_FOUND})
set (FLTK_INCLUDE_PATH ${FLTK_INCLUDE_DIR})
set (FLTK_FLUID_EXE ${FLTK_FLUID_EXECUTABLE})
set (FLTK_LIBRARY ${FLTK_LIBRARIES})
endif()