CMake/Modules/FindFLTK2.cmake
2019-04-23 10:39:34 +02:00

246 lines
7.5 KiB
CMake

# Distributed under the OSI-approved BSD 3-Clause License. See accompanying
# file Copyright.txt or https://cmake.org/licensing for details.
#[=======================================================================[.rst:
FindFLTK2
---------
Find the native FLTK 2.0 includes and library
The following settings are defined
::
FLTK2_FLUID_EXECUTABLE, where to find the Fluid tool
FLTK2_WRAP_UI, This enables the FLTK2_WRAP_UI command
FLTK2_INCLUDE_DIR, where to find include files
FLTK2_LIBRARIES, list of fltk2 libraries
FLTK2_FOUND, Don't use FLTK2 if false.
The following settings should not be used in general.
::
FLTK2_BASE_LIBRARY = the full path to fltk2.lib
FLTK2_GL_LIBRARY = the full path to fltk2_gl.lib
FLTK2_IMAGES_LIBRARY = the full path to fltk2_images.lib
#]=======================================================================]
set (FLTK2_DIR $ENV{FLTK2_DIR} )
# Platform dependent libraries required by FLTK2
if(WIN32)
if(NOT CYGWIN)
if(BORLAND)
set( FLTK2_PLATFORM_DEPENDENT_LIBS import32 )
else()
set( FLTK2_PLATFORM_DEPENDENT_LIBS wsock32 comctl32 )
endif()
endif()
endif()
if(UNIX)
include(${CMAKE_ROOT}/Modules/FindX11.cmake)
set( FLTK2_PLATFORM_DEPENDENT_LIBS ${X11_LIBRARIES} -lm)
endif()
if(APPLE)
set( FLTK2_PLATFORM_DEPENDENT_LIBS "-framework Carbon -framework Cocoa -framework ApplicationServices -lz")
endif()
# If FLTK2_INCLUDE_DIR is already defined we assign its value to FLTK2_DIR
if(FLTK2_INCLUDE_DIR)
set(FLTK2_DIR ${FLTK2_INCLUDE_DIR})
else()
set(FLTK2_INCLUDE_DIR ${FLTK2_DIR})
endif()
# If FLTK2 has been built using CMake we try to find everything directly
set(FLTK2_DIR_STRING "directory containing FLTK2Config.cmake. This is either the root of the build tree, or PREFIX/lib/fltk for an installation.")
# Search only if the location is not already known.
if(NOT FLTK2_DIR)
# Get the system search path as a list.
file(TO_CMAKE_PATH "$ENV{PATH}" FLTK2_DIR_SEARCH2)
# Construct a set of paths relative to the system search path.
set(FLTK2_DIR_SEARCH "")
foreach(dir ${FLTK2_DIR_SEARCH2})
set(FLTK2_DIR_SEARCH ${FLTK2_DIR_SEARCH} "${dir}/../lib/fltk")
endforeach()
string(REPLACE "//" "/" FLTK2_DIR_SEARCH "${FLTK2_DIR_SEARCH}")
#
# Look for an installation or build tree.
#
find_path(FLTK2_DIR FLTK2Config.cmake
# Look for an environment variable FLTK2_DIR.
ENV FLTK2_DIR
# Look in places relative to the system executable search path.
${FLTK2_DIR_SEARCH}
PATH_SUFFIXES
fltk2
fltk2/include
lib/fltk2
lib/fltk2/include
# Help the user find it if we cannot.
DOC "The ${FLTK2_DIR_STRING}"
)
if(NOT FLTK2_DIR)
find_path(FLTK2_DIR fltk/run.h ${FLTK2_INCLUDE_SEARCH_PATH})
endif()
endif()
# If FLTK2 was found, load the configuration file to get the rest of the
# settings.
if(FLTK2_DIR)
# Check if FLTK2 was built using CMake
if(EXISTS ${FLTK2_DIR}/FLTK2Config.cmake)
set(FLTK2_BUILT_WITH_CMAKE 1)
endif()
if(FLTK2_BUILT_WITH_CMAKE)
set(FLTK2_FOUND 1)
include(${FLTK2_DIR}/FLTK2Config.cmake)
# Fluid
if(FLUID_COMMAND)
set(FLTK2_FLUID_EXECUTABLE ${FLUID_COMMAND} CACHE FILEPATH "Fluid executable")
else()
find_program(FLTK2_FLUID_EXECUTABLE fluid2 PATHS
${FLTK2_EXECUTABLE_DIRS}
${FLTK2_EXECUTABLE_DIRS}/RelWithDebInfo
${FLTK2_EXECUTABLE_DIRS}/Debug
${FLTK2_EXECUTABLE_DIRS}/Release
NO_SYSTEM_PATH)
endif()
mark_as_advanced(FLTK2_FLUID_EXECUTABLE)
set( FLTK_FLUID_EXECUTABLE ${FLTK2_FLUID_EXECUTABLE} )
set(FLTK2_INCLUDE_DIR ${FLTK2_DIR})
link_directories(${FLTK2_LIBRARY_DIRS})
set(FLTK2_BASE_LIBRARY fltk2)
set(FLTK2_GL_LIBRARY fltk2_gl)
set(FLTK2_IMAGES_LIBRARY fltk2_images)
# Add the extra libraries
load_cache(${FLTK2_DIR}
READ_WITH_PREFIX
FL FLTK2_USE_SYSTEM_JPEG
FL FLTK2_USE_SYSTEM_PNG
FL FLTK2_USE_SYSTEM_ZLIB
)
set(FLTK2_IMAGES_LIBS "")
if(FLFLTK2_USE_SYSTEM_JPEG)
set(FLTK2_IMAGES_LIBS ${FLTK2_IMAGES_LIBS} fltk2_jpeg)
endif()
if(FLFLTK2_USE_SYSTEM_PNG)
set(FLTK2_IMAGES_LIBS ${FLTK2_IMAGES_LIBS} fltk2_png)
endif()
if(FLFLTK2_USE_SYSTEM_ZLIB)
set(FLTK2_IMAGES_LIBS ${FLTK2_IMAGES_LIBS} fltk2_zlib)
endif()
set(FLTK2_IMAGES_LIBS "${FLTK2_IMAGES_LIBS}" CACHE INTERNAL
"Extra libraries for fltk2_images library.")
else()
# if FLTK2 was not built using CMake
# Find fluid executable.
find_program(FLTK2_FLUID_EXECUTABLE fluid2 ${FLTK2_INCLUDE_DIR}/fluid)
# Use location of fluid to help find everything else.
set(FLTK2_INCLUDE_SEARCH_PATH "")
set(FLTK2_LIBRARY_SEARCH_PATH "")
if(FLTK2_FLUID_EXECUTABLE)
set( FLTK_FLUID_EXECUTABLE ${FLTK2_FLUID_EXECUTABLE} )
get_filename_component(FLTK2_BIN_DIR "${FLTK2_FLUID_EXECUTABLE}" PATH)
set(FLTK2_INCLUDE_SEARCH_PATH ${FLTK2_INCLUDE_SEARCH_PATH}
${FLTK2_BIN_DIR}/../include ${FLTK2_BIN_DIR}/..)
set(FLTK2_LIBRARY_SEARCH_PATH ${FLTK2_LIBRARY_SEARCH_PATH}
${FLTK2_BIN_DIR}/../lib)
set(FLTK2_WRAP_UI 1)
endif()
find_path(FLTK2_INCLUDE_DIR fltk/run.h ${FLTK2_INCLUDE_SEARCH_PATH} PATH_SUFFIXES fltk2 fltk2/include)
list(APPEND FLTK2_LIBRARY_SEARCH_PATH ${FLTK2_INCLUDE_DIR}/lib)
find_library(FLTK2_BASE_LIBRARY NAMES fltk2
PATHS ${FLTK2_LIBRARY_SEARCH_PATH} PATH_SUFFIXES fltk2 fltk2/lib)
find_library(FLTK2_GL_LIBRARY NAMES fltk2_gl
PATHS ${FLTK2_LIBRARY_SEARCH_PATH} PATH_SUFFIXES fltk2 fltk2/lib)
find_library(FLTK2_IMAGES_LIBRARY NAMES fltk2_images
PATHS ${FLTK2_LIBRARY_SEARCH_PATH} PATH_SUFFIXES fltk2 fltk2/lib)
# Find the extra libraries needed for the fltk_images library.
if(UNIX)
find_program(FLTK2_CONFIG_SCRIPT fltk2-config PATHS ${FLTK2_BIN_DIR})
if(FLTK2_CONFIG_SCRIPT)
exec_program(${FLTK2_CONFIG_SCRIPT} ARGS --use-images --ldflags
OUTPUT_VARIABLE FLTK2_IMAGES_LDFLAGS)
set(FLTK2_LIBS_EXTRACT_REGEX ".*-lfltk2_images (.*) -lfltk2.*")
if("${FLTK2_IMAGES_LDFLAGS}" MATCHES "${FLTK2_LIBS_EXTRACT_REGEX}")
string(REGEX REPLACE " +" ";" FLTK2_IMAGES_LIBS "${CMAKE_MATCH_1}")
# The EXEC_PROGRAM will not be inherited into subdirectories from
# the file that originally included this module. Save the answer.
set(FLTK2_IMAGES_LIBS "${FLTK2_IMAGES_LIBS}" CACHE INTERNAL
"Extra libraries for fltk_images library.")
endif()
endif()
endif()
endif()
endif()
set(FLTK2_FOUND 1)
foreach(var FLTK2_FLUID_EXECUTABLE FLTK2_INCLUDE_DIR
FLTK2_BASE_LIBRARY FLTK2_GL_LIBRARY
FLTK2_IMAGES_LIBRARY)
if(NOT ${var})
message( STATUS "${var} not found" )
set(FLTK2_FOUND 0)
endif()
endforeach()
if(FLTK2_FOUND)
set(FLTK2_LIBRARIES ${FLTK2_IMAGES_LIBRARY} ${FLTK2_IMAGES_LIBS} ${FLTK2_BASE_LIBRARY} ${FLTK2_GL_LIBRARY} )
if(APPLE)
set(FLTK2_LIBRARIES ${FLTK2_PLATFORM_DEPENDENT_LIBS} ${FLTK2_LIBRARIES})
else()
set(FLTK2_LIBRARIES ${FLTK2_LIBRARIES} ${FLTK2_PLATFORM_DEPENDENT_LIBS})
endif()
# The following deprecated settings are for compatibility with CMake 1.4
set (HAS_FLTK2 ${FLTK2_FOUND})
set (FLTK2_INCLUDE_PATH ${FLTK2_INCLUDE_DIR})
set (FLTK2_FLUID_EXE ${FLTK2_FLUID_EXECUTABLE})
set (FLTK2_LIBRARY ${FLTK2_LIBRARIES})
else()
# make FIND_PACKAGE friendly
if(NOT FLTK2_FIND_QUIETLY)
if(FLTK2_FIND_REQUIRED)
message(FATAL_ERROR
"FLTK2 required, please specify its location with FLTK2_DIR.")
else()
message(STATUS "FLTK2 was not found.")
endif()
endif()
endif()