OpenSceneGraph/CMakeModules/FindFontconfig.cmake
Graham Stewart fb63c5b0a5
comment out cmake internal help markup
cmake 2.8.12 cannot parse it. From the looks of it this sort of markup only needs to be parsable when building cmake v3 itself.
2020-06-23 11:51:58 -05:00

99 lines
2.9 KiB
CMake

# Distributed under the OSI-approved BSD 3-Clause License. See accompanying
# file Copyright.txt or https://cmake.org/licensing for details.
#[[=======================================================================.rst:
# FindFontconfig
# --------------
#
# Find Fontconfig headers and library.
#
# Imported Targets
# ^^^^^^^^^^^^^^^^
#
# ``Fontconfig::Fontconfig``
# The Fontconfig library, if found.
#
# Result Variables
# ^^^^^^^^^^^^^^^^
#
# This will define the following variables in your project:
#
# ``FONTCONFIG_FOUND``
# true if (the requested version of) Fontconfig is available.
# ``FONTCONFIG_VERSION``
# the version of Fontconfig.
# ``FONTCONFIG_LIBRARIES``
# the libraries to link against to use Fontconfig.
# ``FONTCONFIG_INCLUDE_DIRS``
# where to find the Fontconfig headers.
# ``FONTCONFIG_COMPILE_OPTIONS``
# this should be passed to target_compile_options(), if the
# target is not used for linking
#=======================================================================]]
# use pkg-config to get the directories and then use these values
# in the FIND_PATH() and FIND_LIBRARY() calls
find_package(PkgConfig QUIET)
pkg_check_modules(PKG_FONTCONFIG QUIET fontconfig)
set(FONTCONFIG_COMPILE_OPTIONS ${PKG_FONTCONFIG_CFLAGS_OTHER})
set(FONTCONFIG_VERSION ${PKG_FONTCONFIG_VERSION})
find_path( FONTCONFIG_INCLUDE_DIR
NAMES
fontconfig/fontconfig.h
HINTS
${PKG_FONTCONFIG_INCLUDE_DIRS}
/usr/X11/include
)
find_library( FONTCONFIG_LIBRARY
NAMES
fontconfig
PATHS
${PKG_FONTCONFIG_LIBRARY_DIRS}
)
if (FONTCONFIG_INCLUDE_DIR AND NOT FONTCONFIG_VERSION)
file(STRINGS ${FONTCONFIG_INCLUDE_DIR}/fontconfig/fontconfig.h _contents REGEX "^#define[ \t]+FC_[A-Z]+[ \t]+[0-9]+$")
unset(FONTCONFIG_VERSION)
foreach(VPART MAJOR MINOR REVISION)
foreach(VLINE ${_contents})
if(VLINE MATCHES "^#define[\t ]+FC_${VPART}[\t ]+([0-9]+)$")
set(FONTCONFIG_VERSION_PART "${CMAKE_MATCH_1}")
if(FONTCONFIG_VERSION)
string(APPEND FONTCONFIG_VERSION ".${FONTCONFIG_VERSION_PART}")
else()
set(FONTCONFIG_VERSION "${FONTCONFIG_VERSION_PART}")
endif()
endif()
endforeach()
endforeach()
endif ()
include(FindPackageHandleStandardArgs)
find_package_handle_standard_args(Fontconfig
FOUND_VAR
FONTCONFIG_FOUND
REQUIRED_VARS
FONTCONFIG_LIBRARY
FONTCONFIG_INCLUDE_DIR
VERSION_VAR
FONTCONFIG_VERSION
)
if(FONTCONFIG_FOUND AND NOT TARGET Fontconfig::Fontconfig)
add_library(Fontconfig::Fontconfig UNKNOWN IMPORTED)
set_target_properties(Fontconfig::Fontconfig PROPERTIES
IMPORTED_LOCATION "${FONTCONFIG_LIBRARY}"
INTERFACE_COMPILE_OPTIONS "${FONTCONFIG_COMPILE_OPTIONS}"
INTERFACE_INCLUDE_DIRECTORIES "${FONTCONFIG_INCLUDE_DIR}"
)
endif()
mark_as_advanced(FONTCONFIG_LIBRARY FONTCONFIG_INCLUDE_DIR)
if(FONTCONFIG_FOUND)
set(FONTCONFIG_LIBRARIES ${FONTCONFIG_LIBRARY})
set(FONTCONFIG_INCLUDE_DIRS ${FONTCONFIG_INCLUDE_DIR})
endif()