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fltk/CMake/options.cmake
Albrecht Schlosser b4bbc53c5e Reorder CMake build options for better order of include directories 
This is only one minor step to remove issues of some CMake options
that can cause conflicting include directories ("-I..." switches).

See implementation note in CMake/options.cmake.
2022-04-07 19:19:40 +02:00

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#
# Main CMakeLists.txt to build the FLTK project using CMake (www.cmake.org)
# Originally written by Michael Surette
#
# Copyright 1998-2022 by Bill Spitzak and others.
#
# This library is free software. Distribution and use rights are outlined in
# the file "COPYING" which should have been included with this file. If this
# file is missing or damaged, see the license at:
#
# https://www.fltk.org/COPYING.php
#
# Please see the following page on how to report bugs and issues:
#
# https://www.fltk.org/bugs.php
#
#######################################################################
# Important implementation note for FLTK developers
#######################################################################
#
# *FIXME* In the current version of FLTK's CMake build files we're
# using 'include_directories()' to define directories that must be
# used in compile commands (typically "-Idirectories").
#
# include_directories() is a global command that affects *all* source
# files in the current directory and all subdirectories. This can lead
# to conflicts and should be replaced with target_include_directories()
# which can be applied to particular targets and source files only.
#
# This could remove some of these potential build conflicts, for
# instance # if the bundled image libs and Cairo or Pango are used
# together (Pango depends on Cairo and Cairo depends on libpng).
# However, this is not a proper solution!
#
# That said, order of "-I..." switches matters, and therefore the
# bundled libraries (png, jpeg, zlib) *must* appear before any other
# include_directories() statements that might introduce conflicts.
# Currently 'resources.cmake' is included before this file and thus
# 'include_directories (${FREETYPE_PATH})' is executed before this
# file but this doesn't matter.
#
# This *MUST* be fixed using target_include_directories() as
# appropriate but this would need a major rework.
#
# Albrecht-S April 6, 2022
#
#######################################################################
set (DEBUG_OPTIONS_CMAKE 0)
if (DEBUG_OPTIONS_CMAKE)
message (STATUS "[** options.cmake **]")
fl_debug_var (WIN32)
fl_debug_var (FLTK_LDLIBS)
endif (DEBUG_OPTIONS_CMAKE)
#######################################################################
# options
#######################################################################
set (OPTION_OPTIM ""
CACHE STRING
"custom optimization flags"
)
add_definitions (${OPTION_OPTIM})
#######################################################################
set (OPTION_ARCHFLAGS ""
CACHE STRING
"custom architecture flags"
)
add_definitions (${OPTION_ARCHFLAGS})
#######################################################################
set (OPTION_ABI_VERSION ""
CACHE STRING
"FLTK ABI Version FL_ABI_VERSION: 1xxyy for 1.x.y (xx,yy with leading zero)"
)
set (FL_ABI_VERSION ${OPTION_ABI_VERSION})
#######################################################################
# Bundled Library Options
#######################################################################
option (OPTION_USE_SYSTEM_ZLIB "use system zlib" ON)
if (APPLE)
option (OPTION_USE_SYSTEM_LIBJPEG "use system libjpeg" OFF)
option (OPTION_USE_SYSTEM_LIBPNG "use system libpng" OFF)
else ()
option (OPTION_USE_SYSTEM_LIBJPEG "use system libjpeg" ON)
option (OPTION_USE_SYSTEM_LIBPNG "use system libpng" ON)
endif ()
#######################################################################
# Bundled Compression Library : zlib
#######################################################################
if (OPTION_USE_SYSTEM_ZLIB)
find_package (ZLIB)
endif ()
if (OPTION_USE_SYSTEM_ZLIB AND ZLIB_FOUND)
set (FLTK_USE_BUILTIN_ZLIB FALSE)
set (FLTK_ZLIB_LIBRARIES ${ZLIB_LIBRARIES})
include_directories (${ZLIB_INCLUDE_DIRS})
else()
if (OPTION_USE_SYSTEM_ZLIB)
message (STATUS "cannot find system zlib library - using built-in\n")
endif ()
add_subdirectory (zlib)
set (FLTK_USE_BUILTIN_ZLIB TRUE)
set (FLTK_ZLIB_LIBRARIES fltk_z)
set (ZLIB_INCLUDE_DIR ${CMAKE_CURRENT_SOURCE_DIR}/zlib)
include_directories (${CMAKE_CURRENT_SOURCE_DIR}/zlib)
endif ()
set (HAVE_LIBZ 1)
#######################################################################
# Bundled Image Library : libjpeg
#######################################################################
if (OPTION_USE_SYSTEM_LIBJPEG)
find_package (JPEG)
endif ()
if (OPTION_USE_SYSTEM_LIBJPEG AND JPEG_FOUND)
set (FLTK_USE_BUILTIN_JPEG FALSE)
set (FLTK_JPEG_LIBRARIES ${JPEG_LIBRARIES})
include_directories (${JPEG_INCLUDE_DIR})
else ()
if (OPTION_USE_SYSTEM_LIBJPEG)
message (STATUS "cannot find system jpeg library - using built-in\n")
endif ()
add_subdirectory (jpeg)
set (FLTK_USE_BUILTIN_JPEG TRUE)
set (FLTK_JPEG_LIBRARIES fltk_jpeg)
include_directories (${CMAKE_CURRENT_SOURCE_DIR}/jpeg)
endif ()
set (HAVE_LIBJPEG 1)
#######################################################################
# Bundled Image Library : libpng
#######################################################################
if (OPTION_USE_SYSTEM_LIBPNG)
find_package (PNG)
endif ()
if (OPTION_USE_SYSTEM_LIBPNG AND PNG_FOUND)
set (FLTK_USE_BUILTIN_PNG FALSE)
set (FLTK_PNG_LIBRARIES ${PNG_LIBRARIES})
include_directories (${PNG_INCLUDE_DIRS})
add_definitions (${PNG_DEFINITIONS})
set (_INCLUDE_SAVED ${CMAKE_REQUIRED_INCLUDES})
list (APPEND CMAKE_REQUIRED_INCLUDES ${PNG_INCLUDE_DIRS})
# Note: we do not check for <libpng/png.h> explicitly.
# This is assumed to exist if we have PNG_FOUND and don't find <png.h>
# FIXME - Force search by unsetting the chache variable. Maybe use
# FIXME - another cache variable to check for option changes?
unset (HAVE_PNG_H CACHE) # force search
check_include_file (png.h HAVE_PNG_H)
mark_as_advanced (HAVE_PNG_H)
set (CMAKE_REQUIRED_INCLUDES ${_INCLUDE_SAVED})
unset (_INCLUDE_SAVED)
else ()
if (OPTION_USE_SYSTEM_LIBPNG)
message (STATUS "cannot find system png library - using built-in\n")
endif ()
add_subdirectory (png)
set (FLTK_USE_BUILTIN_PNG TRUE)
set (FLTK_PNG_LIBRARIES fltk_png)
set (HAVE_PNG_H 1)
set (HAVE_PNG_GET_VALID 1)
set (HAVE_PNG_SET_TRNS_TO_ALPHA 1)
include_directories (${CMAKE_CURRENT_SOURCE_DIR}/png)
endif ()
set (HAVE_LIBPNG 1)
#######################################################################
if (UNIX)
option (OPTION_CREATE_LINKS "create backwards compatibility links" OFF)
list (APPEND FLTK_LDLIBS -lm)
option (OPTION_USE_WAYLAND "use Wayland" OFF)
if (OPTION_USE_WAYLAND)
set (FLTK_USE_WAYLAND 1)
option (OPTION_USE_SYSTEM_LIBDECOR "use libdecor from the system" OFF)
unset (OPTION_USE_XRENDER CACHE)
unset (OPTION_USE_XINERAMA CACHE)
unset (OPTION_USE_XFT CACHE)
unset (OPTION_USE_XCURSOR CACHE)
unset (OPTION_USE_XFIXES CACHE)
unset (OPTION_USE_PANGO CACHE)
set (OPTION_USE_PANGO TRUE CACHE BOOL "use lib Pango")
if (OPTION_USE_SYSTEM_LIBDECOR)
pkg_check_modules(SYSTEM_LIBDECOR libdecor-0)
if (NOT SYSTEM_LIBDECOR_FOUND)
set (OPTION_USE_SYSTEM_LIBDECOR OFF)
endif (NOT SYSTEM_LIBDECOR_FOUND)
endif (OPTION_USE_SYSTEM_LIBDECOR)
endif (OPTION_USE_WAYLAND)
endif (UNIX)
if (WIN32)
option (OPTION_USE_GDIPLUS "use GDI+ when possible for antialiased graphics" ON)
if (OPTION_USE_GDIPLUS)
set (USE_GDIPLUS TRUE)
if (NOT MSVC)
list (APPEND FLTK_LDLIBS "-lgdiplus")
endif (NOT MSVC)
endif (OPTION_USE_GDIPLUS)
endif (WIN32)
#######################################################################
if (APPLE)
option (OPTION_APPLE_X11 "use X11" OFF)
if (CMAKE_OSX_SYSROOT)
list (APPEND FLTK_CFLAGS "-isysroot ${CMAKE_OSX_SYSROOT}")
endif (CMAKE_OSX_SYSROOT)
endif (APPLE)
# find X11 libraries and headers
set (PATH_TO_XLIBS)
if ((NOT APPLE OR OPTION_APPLE_X11) AND NOT WIN32 AND NOT OPTION_USE_WAYLAND)
include (FindX11)
if (X11_FOUND)
set (FLTK_USE_X11 1)
list (APPEND FLTK_LDLIBS -lX11)
if (X11_Xext_FOUND)
list (APPEND FLTK_LDLIBS -lXext)
endif (X11_Xext_FOUND)
get_filename_component (PATH_TO_XLIBS ${X11_X11_LIB} PATH)
endif (X11_FOUND)
endif ((NOT APPLE OR OPTION_APPLE_X11) AND NOT WIN32 AND NOT OPTION_USE_WAYLAND)
if (OPTION_APPLE_X11)
if (NOT(${CMAKE_SYSTEM_VERSION} VERSION_LESS 17.0.0)) # a.k.a. macOS version ≥ 10.13
list (APPEND FLTK_CFLAGS "-D_LIBCPP_HAS_THREAD_API_PTHREAD")
endif (NOT(${CMAKE_SYSTEM_VERSION} VERSION_LESS 17.0.0))
include_directories (AFTER SYSTEM /opt/X11/include/freetype2)
if (PATH_TO_XLIBS)
set (LDFLAGS "-L${PATH_TO_XLIBS} ${LDFLAGS}")
endif (PATH_TO_XLIBS)
if (X11_INCLUDE_DIR)
set (TEMP_INCLUDE_DIR ${X11_INCLUDE_DIR})
list (TRANSFORM TEMP_INCLUDE_DIR PREPEND "-I")
list (APPEND FLTK_CFLAGS "${TEMP_INCLUDE_DIR}")
endif (X11_INCLUDE_DIR)
endif (OPTION_APPLE_X11)
#######################################################################
option (OPTION_USE_POLL "use poll if available" OFF)
mark_as_advanced (OPTION_USE_POLL)
if (OPTION_USE_POLL)
CHECK_FUNCTION_EXISTS(poll USE_POLL)
endif (OPTION_USE_POLL)
#######################################################################
option (OPTION_BUILD_SHARED_LIBS
"Build shared libraries (in addition to static libraries)"
OFF
)
#######################################################################
option (OPTION_PRINT_SUPPORT "allow print support" ON)
option (OPTION_FILESYSTEM_SUPPORT "allow file system support" ON)
option (FLTK_BUILD_TEST "Build test/demo programs" ON)
option (FLTK_BUILD_EXAMPLES "Build example programs" OFF)
if (DEFINED OPTION_BUILD_EXAMPLES)
message (WARNING
"'OPTION_BUILD_EXAMPLES' is obsolete, please use 'FLTK_BUILD_TEST' instead.")
message (STATUS
"To remove this warning, please delete 'OPTION_BUILD_EXAMPLES' from the CMake cache")
endif (DEFINED OPTION_BUILD_EXAMPLES)
#######################################################################
if (DOXYGEN_FOUND)
option (OPTION_BUILD_HTML_DOCUMENTATION "build html docs" ON)
option (OPTION_INSTALL_HTML_DOCUMENTATION "install html docs" OFF)
option (OPTION_INCLUDE_DRIVER_DOCUMENTATION "include driver (developer) docs" OFF)
mark_as_advanced (OPTION_INCLUDE_DRIVER_DOCUMENTATION)
if (LATEX_FOUND)
option (OPTION_BUILD_PDF_DOCUMENTATION "build pdf docs" ON)
option (OPTION_INSTALL_PDF_DOCUMENTATION "install pdf docs" OFF)
endif (LATEX_FOUND)
endif (DOXYGEN_FOUND)
if (OPTION_BUILD_HTML_DOCUMENTATION OR OPTION_BUILD_PDF_DOCUMENTATION)
add_subdirectory (documentation)
endif (OPTION_BUILD_HTML_DOCUMENTATION OR OPTION_BUILD_PDF_DOCUMENTATION)
#######################################################################
# Include optional Cairo support
#######################################################################
option (OPTION_CAIRO "use lib Cairo" OFF)
option (OPTION_CAIROEXT
"use FLTK code instrumentation for Cairo extended use" OFF
)
set (FLTK_HAVE_CAIRO 0)
set (FLTK_HAVE_CAIROEXT 0)
if (OPTION_CAIRO OR OPTION_CAIROEXT)
pkg_search_module (PKG_CAIRO cairo)
# fl_debug_var (PKG_CAIRO_FOUND)
if (PKG_CAIRO_FOUND)
set (FLTK_HAVE_CAIRO 1)
if (OPTION_CAIROEXT)
set (FLTK_HAVE_CAIROEXT 1)
endif (OPTION_CAIROEXT)
add_subdirectory (cairo)
if (0)
fl_debug_var (PKG_CAIRO_INCLUDE_DIRS)
fl_debug_var (PKG_CAIRO_CFLAGS)
fl_debug_var (PKG_CAIRO_LIBRARIES)
fl_debug_var (PKG_CAIRO_LIBRARY_DIRS)
fl_debug_var (PKG_CAIRO_STATIC_INCLUDE_DIRS)
fl_debug_var (PKG_CAIRO_STATIC_CFLAGS)
fl_debug_var (PKG_CAIRO_STATIC_LIBRARIES)
fl_debug_var (PKG_CAIRO_STATIC_LIBRARY_DIRS)
endif()
include_directories (${PKG_CAIRO_INCLUDE_DIRS})
# Cairo libs and flags for fltk-config
# Hint: use either PKG_CAIRO_* or PKG_CAIRO_STATIC_* variables to
# create the list of libraries used to link programs with cairo
# by running fltk-config --use-cairo --compile ...
# Currently we're using the non-STATIC variables to link cairo shared.
set (CAIROLIBS)
foreach (lib ${PKG_CAIRO_LIBRARIES})
list (APPEND CAIROLIBS "-l${lib}")
endforeach()
string (REPLACE ";" " " CAIROLIBS "${CAIROLIBS}")
string (REPLACE ";" " " CAIROFLAGS "${PKG_CAIRO_CFLAGS}")
# fl_debug_var (FLTK_LDLIBS)
# fl_debug_var (CAIROFLAGS)
# fl_debug_var (CAIROLIBS)
else ()
message (STATUS "*** Cairo was requested but not found - please check your cairo installation")
message (STATUS "*** or disable options OPTION_CAIRO and OPTION_CAIRO_EXT.")
message (FATAL_ERROR "*** Terminating: missing Cairo libs or headers.")
endif (PKG_CAIRO_FOUND)
endif (OPTION_CAIRO OR OPTION_CAIROEXT)
#######################################################################
option (OPTION_USE_SVG "read/write SVG files" ON)
if (OPTION_USE_SVG)
set (FLTK_USE_SVG 1)
endif (OPTION_USE_SVG)
#######################################################################
set (HAVE_GL LIB_GL OR LIB_MesaGL)
if (HAVE_GL)
option (OPTION_USE_GL "use OpenGL" ON)
endif (HAVE_GL)
if (OPTION_USE_GL)
if (OPTION_APPLE_X11)
set (OPENGL_FOUND TRUE)
set (OPENGL_LIBRARIES -L${PATH_TO_XLIBS} -lGLU -lGL)
unset(HAVE_GL_GLU_H CACHE)
find_file (HAVE_GL_GLU_H GL/glu.h PATHS ${X11_INCLUDE_DIR})
else()
include (FindOpenGL)
if (APPLE)
set (HAVE_GL_GLU_H ${HAVE_OPENGL_GLU_H})
endif (APPLE)
endif (OPTION_APPLE_X11)
else ()
set (OPENGL_FOUND FALSE)
set (HAVE_GL FALSE)
set (HAVE_GL_GLU_H FALSE)
set (HAVE_GLXGETPROCADDRESSARB FALSE)
endif (OPTION_USE_GL)
if (OPENGL_FOUND)
set (CMAKE_REQUIRED_INCLUDES ${OPENGL_INCLUDE_DIR}/GL)
# Set GLLIBS (used in fltk-config).
# We should probably deduct this from OPENGL_LIBRARIES but it turned
# out to be difficult since FindOpenGL seems to return different
# syntax depending on the platform (and maybe also CMake version).
# Hence we use the following code...
if (WIN32)
set (GLLIBS "-lglu32 -lopengl32")
elseif (APPLE AND NOT OPTION_APPLE_X11)
set (GLLIBS "-framework OpenGL")
elseif (OPTION_USE_WAYLAND)
set (GLLIBS "-lwayland-egl -lEGL -lGLU -lGL")
else ()
set (GLLIBS "-lGLU -lGL")
endif (WIN32)
# check if function glXGetProcAddressARB exists
set (TEMP_REQUIRED_LIBRARIES ${CMAKE_REQUIRED_LIBRARIES})
set (CMAKE_REQUIRED_LIBRARIES ${OPENGL_LIBRARIES})
CHECK_FUNCTION_EXISTS (glXGetProcAddressARB HAVE_GLXGETPROCADDRESSARB)
set (CMAKE_REQUIRED_LIBRARIES ${TEMP_REQUIRED_LIBRARIES})
unset (TEMP_REQUIRED_LIBRARIES)
set (FLTK_GL_FOUND TRUE)
else ()
set (FLTK_GL_FOUND FALSE)
set (GLLIBS)
endif (OPENGL_FOUND)
#######################################################################
option (OPTION_LARGE_FILE "enable large file support" ON)
if (OPTION_LARGE_FILE)
if (NOT MSVC)
add_definitions (-D_LARGEFILE_SOURCE -D_LARGEFILE64_SOURCE -D_FILE_OFFSET_BITS=64)
list (APPEND FLTK_CFLAGS -D_LARGEFILE_SOURCE -D_LARGEFILE64_SOURCE -D_FILE_OFFSET_BITS=64)
endif (NOT MSVC)
endif (OPTION_LARGE_FILE)
#######################################################################
# Create an option whether we want to check for pthreads.
# We must not do it on Windows unless we run under Cygwin, since we
# always use native threads on Windows (even if libpthread is available).
# Note: HAVE_PTHREAD_H has already been determined in resources.cmake
# before this file is included (or set to 0 for WIN32).
if (WIN32 AND NOT CYGWIN)
# set (HAVE_PTHREAD_H 0) # (see resources.cmake)
set (OPTION_USE_THREADS FALSE)
else ()
option (OPTION_USE_THREADS "use multi-threading with pthreads" ON)
endif (WIN32 AND NOT CYGWIN)
# initialize more variables
set (USE_THREADS 0)
set (HAVE_PTHREAD 0)
set (FLTK_PTHREADS_FOUND FALSE)
if (OPTION_USE_THREADS)
include (FindThreads)
if (CMAKE_HAVE_THREADS_LIBRARY)
add_definitions ("-D_THREAD_SAFE -D_REENTRANT")
set (USE_THREADS 1)
set (FLTK_THREADS_FOUND TRUE)
endif (CMAKE_HAVE_THREADS_LIBRARY)
if (CMAKE_USE_PTHREADS_INIT AND NOT WIN32)
set (HAVE_PTHREAD 1)
if (NOT APPLE)
set (CMAKE_EXE_LINKER_FLAGS "${CMAKE_EXE_LINKER_FLAGS} -pthread")
endif (NOT APPLE)
list (APPEND FLTK_LDLIBS -lpthread)
list (APPEND FLTK_CFLAGS -D_THREAD_SAFE -D_REENTRANT)
set (FLTK_PTHREADS_FOUND TRUE)
else()
set (HAVE_PTHREAD 0)
set (HAVE_PTHREAD_H 0)
set (FLTK_PTHREADS_FOUND FALSE)
endif (CMAKE_USE_PTHREADS_INIT AND NOT WIN32)
else (OPTION_USE_THREADS)
set (HAVE_PTHREAD_H 0)
endif (OPTION_USE_THREADS)
set (debug_threads 0) # set to 1 to show debug info
if (debug_threads)
message ("")
message (STATUS "options.cmake: set debug_threads to 0 to disable the following info:")
fl_debug_var(OPTION_USE_THREADS)
fl_debug_var(HAVE_PTHREAD)
fl_debug_var(HAVE_PTHREAD_H)
fl_debug_var(FLTK_THREADS_FOUND)
fl_debug_var(CMAKE_EXE_LINKER_FLAGS)
message (STATUS "options.cmake: end of debug_threads info.")
endif (debug_threads)
unset (debug_threads)
#######################################################################
if (X11_Xinerama_FOUND)
option (OPTION_USE_XINERAMA "use lib Xinerama" ON)
endif (X11_Xinerama_FOUND)
if (OPTION_USE_XINERAMA)
set (HAVE_XINERAMA ${X11_Xinerama_FOUND})
include_directories (${X11_Xinerama_INCLUDE_PATH})
list (APPEND FLTK_LDLIBS -lXinerama)
set (FLTK_XINERAMA_FOUND TRUE)
else()
set (FLTK_XINERAMA_FOUND FALSE)
endif (OPTION_USE_XINERAMA)
#######################################################################
if (X11_Xfixes_FOUND)
option (OPTION_USE_XFIXES "use lib Xfixes" ON)
endif (X11_Xfixes_FOUND)
if (OPTION_USE_XFIXES)
set (HAVE_XFIXES ${X11_Xfixes_FOUND})
include_directories (${X11_Xfixes_INCLUDE_PATH})
list (APPEND FLTK_LDLIBS -lXfixes)
set (FLTK_XFIXES_FOUND TRUE)
else()
set (FLTK_XFIXES_FOUND FALSE)
endif (OPTION_USE_XFIXES)
#######################################################################
if (X11_Xcursor_FOUND)
option (OPTION_USE_XCURSOR "use lib Xcursor" ON)
endif (X11_Xcursor_FOUND)
if (OPTION_USE_XCURSOR)
set (HAVE_XCURSOR ${X11_Xcursor_FOUND})
include_directories (${X11_Xcursor_INCLUDE_PATH})
list (APPEND FLTK_LDLIBS -lXcursor)
set (FLTK_XCURSOR_FOUND TRUE)
else()
set (FLTK_XCURSOR_FOUND FALSE)
endif (OPTION_USE_XCURSOR)
#######################################################################
if (X11_Xft_FOUND)
option (OPTION_USE_XFT "use lib Xft" ON)
option (OPTION_USE_PANGO "use lib Pango" OFF)
endif (X11_Xft_FOUND)
# test option compatibility: Pango requires Xft
if (OPTION_USE_PANGO AND NOT OPTION_USE_WAYLAND)
if (NOT X11_Xft_FOUND)
message (STATUS "Pango requires Xft but Xft library or headers could not be found.")
message (STATUS "Please install Xft development files and try again or disable OPTION_USE_PANGO.")
message (FATAL_ERROR "*** Aborting ***")
else ()
if (NOT OPTION_USE_XFT)
message (STATUS "Pango requires Xft but usage of Xft was disabled.")
message (STATUS "Please enable OPTION_USE_XFT and try again or disable OPTION_USE_PANGO.")
message (FATAL_ERROR "*** Aborting ***")
endif (NOT OPTION_USE_XFT)
endif (NOT X11_Xft_FOUND)
endif (OPTION_USE_PANGO AND NOT OPTION_USE_WAYLAND)
#######################################################################
if ((X11_Xft_FOUND OR OPTION_USE_WAYLAND) AND OPTION_USE_PANGO)
pkg_check_modules(CAIRO cairo)
pkg_check_modules(PANGOXFT pangoxft)
pkg_check_modules(PANGOCAIRO pangocairo)
if (PANGOXFT_FOUND AND PANGOCAIRO_FOUND AND CAIRO_FOUND)
include_directories (${PANGOXFT_INCLUDE_DIRS} ${CAIRO_INCLUDE_DIRS})
find_library (HAVE_LIB_PANGO pango-1.0 ${CMAKE_LIBRARY_PATH})
find_library (HAVE_LIB_PANGOXFT pangoxft-1.0 ${CMAKE_LIBRARY_PATH})
find_library (HAVE_LIB_PANGOCAIRO pangocairo-1.0 ${CMAKE_LIBRARY_PATH})
find_library (HAVE_LIB_CAIRO cairo ${CMAKE_LIBRARY_PATH})
find_library (HAVE_LIB_GOBJECT gobject-2.0 ${CMAKE_LIBRARY_PATH})
mark_as_advanced (HAVE_LIB_PANGO)
mark_as_advanced (HAVE_LIB_PANGOXFT)
mark_as_advanced (HAVE_LIB_PANGOCAIRO)
mark_as_advanced (HAVE_LIB_CAIRO)
mark_as_advanced (HAVE_LIB_GOBJECT)
set (USE_PANGO TRUE)
# add required libraries to fltk-config ...
list (APPEND FLTK_LDLIBS ${PANGOXFT_LDFLAGS})
list (APPEND FLTK_LDLIBS ${PANGOCAIRO_LDFLAGS})
list (APPEND FLTK_LDLIBS ${CAIRO_LDFLAGS})
# *FIXME* Libraries should not be added explicitly if possible
if (OPTION_USE_WAYLAND)
list (APPEND FLTK_LDLIBS -lgtk-3 -lgdk-3 -lgio-2.0)
endif (OPTION_USE_WAYLAND)
if (APPLE)
get_filename_component(PANGO_L_PATH ${HAVE_LIB_PANGO} PATH)
set (LDFLAGS "${LDFLAGS} -L${PANGO_L_PATH}")
endif (APPLE)
else (PANGOXFT_FOUND AND PANGOCAIRO_FOUND AND CAIRO_FOUND)
# this covers Debian, Ubuntu, FreeBSD, NetBSD, Darwin
if (APPLE AND OPTION_APPLE_X11)
find_file(FINK_PREFIX NAMES /opt/sw /sw)
list (APPEND CMAKE_INCLUDE_PATH ${FINK_PREFIX}/include)
include_directories (${FINK_PREFIX}/include/cairo)
list (APPEND CMAKE_LIBRARY_PATH ${FINK_PREFIX}/lib)
endif (APPLE AND OPTION_APPLE_X11)
find_file(HAVE_PANGO_H pango-1.0/pango/pango.h ${CMAKE_INCLUDE_PATH})
find_file(HAVE_PANGOXFT_H pango-1.0/pango/pangoxft.h ${CMAKE_INCLUDE_PATH})
if (HAVE_PANGO_H AND HAVE_PANGOXFT_H)
find_library(HAVE_LIB_PANGO pango-1.0 ${CMAKE_LIBRARY_PATH})
find_library(HAVE_LIB_PANGOXFT pangoxft-1.0 ${CMAKE_LIBRARY_PATH})
if (APPLE)
set (HAVE_LIB_GOBJECT TRUE)
else()
find_library(HAVE_LIB_GOBJECT gobject-2.0 ${CMAKE_LIBRARY_PATH})
endif (APPLE)
endif (HAVE_PANGO_H AND HAVE_PANGOXFT_H)
if (HAVE_LIB_PANGO AND HAVE_LIB_PANGOXFT AND HAVE_LIB_GOBJECT)
set (USE_PANGO TRUE)
# remove last 3 components of HAVE_PANGO_H and put in PANGO_H_PREFIX
get_filename_component(PANGO_H_PREFIX ${HAVE_PANGO_H} PATH)
get_filename_component(PANGO_H_PREFIX ${PANGO_H_PREFIX} PATH)
get_filename_component(PANGO_H_PREFIX ${PANGO_H_PREFIX} PATH)
get_filename_component(PANGOLIB_DIR ${HAVE_LIB_PANGO} PATH)
# glib.h is usually in ${PANGO_H_PREFIX}/glib-2.0/ ...
find_path(GLIB_H_PATH glib.h
PATHS ${PANGO_H_PREFIX}/glib-2.0
${PANGO_H_PREFIX}/glib/glib-2.0)
include_directories (${PANGO_H_PREFIX}/pango-1.0 ${GLIB_H_PATH} ${PANGOLIB_DIR}/glib-2.0/include)
# *FIXME* Libraries should not be added explicitly if possible
list (APPEND FLTK_LDLIBS -lpango-1.0 -lpangoxft-1.0 -lgobject-2.0)
endif (HAVE_LIB_PANGO AND HAVE_LIB_PANGOXFT AND HAVE_LIB_GOBJECT)
endif (PANGOXFT_FOUND AND PANGOCAIRO_FOUND AND CAIRO_FOUND)
endif ((X11_Xft_FOUND OR OPTION_USE_WAYLAND) AND OPTION_USE_PANGO)
if (OPTION_USE_WAYLAND AND NOT OPTION_USE_SYSTEM_LIBDECOR)
pkg_check_modules(GTK gtk+-3.0)
# set (GTK_FOUND 0) # use this to get cairo titlebars rather than GTK
if (GTK_FOUND)
include_directories (${GTK_INCLUDE_DIRS})
endif (GTK_FOUND)
endif (OPTION_USE_WAYLAND AND NOT OPTION_USE_SYSTEM_LIBDECOR)
if (OPTION_USE_XFT)
set (USE_XFT X11_Xft_FOUND)
list (APPEND FLTK_LDLIBS -lXft)
set (FLTK_XFT_FOUND TRUE)
if (APPLE AND OPTION_APPLE_X11)
find_library(LIB_fontconfig fontconfig "/opt/X11/lib")
endif (APPLE AND OPTION_APPLE_X11)
else()
set (FLTK_XFT_FOUND FALSE)
endif (OPTION_USE_XFT)
#######################################################################
if (X11_Xrender_FOUND)
option (OPTION_USE_XRENDER "use lib Xrender" ON)
endif (X11_Xrender_FOUND)
if (OPTION_USE_XRENDER)
set (HAVE_XRENDER ${X11_Xrender_FOUND})
if (HAVE_XRENDER)
include_directories (${X11_Xrender_INCLUDE_PATH})
list (APPEND FLTK_LDLIBS -lXrender)
set (FLTK_XRENDER_FOUND TRUE)
else(HAVE_XRENDER)
set (FLTK_XRENDER_FOUND FALSE)
endif (HAVE_XRENDER)
else(OPTION_USE_XRENDER)
set (FLTK_XRENDER_FOUND FALSE)
endif (OPTION_USE_XRENDER)
#######################################################################
set (FL_NO_PRINT_SUPPORT FALSE)
if (X11_FOUND AND NOT OPTION_PRINT_SUPPORT)
set (FL_NO_PRINT_SUPPORT TRUE)
endif (X11_FOUND AND NOT OPTION_PRINT_SUPPORT)
#######################################################################
#######################################################################
set (FL_CFG_NO_FILESYSTEM_SUPPORT TRUE)
if (OPTION_FILESYSTEM_SUPPORT)
set (FL_CFG_NO_FILESYSTEM_SUPPORT FALSE)
endif (OPTION_FILESYSTEM_SUPPORT)
#######################################################################
#######################################################################
option (OPTION_USE_KDIALOG "Fl_Native_File_Chooser may run kdialog" ON)
if (OPTION_USE_KDIALOG)
set (USE_KDIALOG 1)
else ()
set (USE_KDIALOG 0)
endif (OPTION_USE_KDIALOG)
#######################################################################
#######################################################################
option (CMAKE_SUPPRESS_REGENERATION "suppress rules to re-run CMake on rebuild" OFF)
mark_as_advanced (CMAKE_SUPPRESS_REGENERATION)
#######################################################################
# Debugging ...
if (DEBUG_OPTIONS_CMAKE)
message (STATUS "") # empty line
fl_debug_var (WIN32)
fl_debug_var (LIBS)
fl_debug_var (GLLIBS)
fl_debug_var (FLTK_LDLIBS)
fl_debug_var (OPENGL_FOUND)
fl_debug_var (OPENGL_INCLUDE_DIR)
fl_debug_var (OPENGL_LIBRARIES)
message ("--- X11 ---")
fl_debug_var (X11_FOUND)
fl_debug_var (X11_INCLUDE_DIR)
fl_debug_var (X11_LIBRARIES)
fl_debug_var (X11_X11_LIB)
fl_debug_var (X11_X11_INCLUDE_PATH)
fl_debug_var (X11_Xft_INCLUDE_PATH)
fl_debug_var (X11_Xft_LIB)
fl_debug_var (X11_Xft_FOUND)
fl_debug_var (PATH_TO_XLIBS)
message (STATUS "[** end of options.cmake **]")
endif (DEBUG_OPTIONS_CMAKE)
unset (DEBUG_OPTIONS_CMAKE)
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