CMake/Modules/FindFreetype.cmake

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#.rst:
# FindFreetype
# ------------
#
# Locate FreeType library
#
# This module defines
#
# ::
#
# FREETYPE_LIBRARIES, the library to link against
# FREETYPE_FOUND, if false, do not try to link to FREETYPE
# FREETYPE_INCLUDE_DIRS, where to find headers.
# FREETYPE_VERSION_STRING, the version of freetype found (since CMake 2.8.8)
# This is the concatenation of the paths:
# FREETYPE_INCLUDE_DIR_ft2build
# FREETYPE_INCLUDE_DIR_freetype2
#
#
#
# $FREETYPE_DIR is an environment variable that would correspond to the
# ./configure --prefix=$FREETYPE_DIR used in building FREETYPE.
#=============================================================================
# Copyright 2007-2009 Kitware, Inc.
#
# Distributed under the OSI-approved BSD License (the "License");
# see accompanying file Copyright.txt for details.
#
# This software is distributed WITHOUT ANY WARRANTY; without even the
# implied warranty of MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.
# See the License for more information.
#=============================================================================
# (To distribute this file outside of CMake, substitute the full
# License text for the above reference.)
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# Created by Eric Wing.
# Modifications by Alexander Neundorf.
# This file has been renamed to "FindFreetype.cmake" instead of the correct
# "FindFreeType.cmake" in order to be compatible with the one from KDE4, Alex.
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# Ugh, FreeType seems to use some #include trickery which
# makes this harder than it should be. It looks like they
# put ft2build.h in a common/easier-to-find location which
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# then contains a #include to a more specific header in a
# more specific location (#include <freetype/config/ftheader.h>).
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# Then from there, they need to set a bunch of #define's
# so you can do something like:
# #include FT_FREETYPE_H
# Unfortunately, using CMake's mechanisms like include_directories()
# wants explicit full paths and this trickery doesn't work too well.
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# I'm going to attempt to cut out the middleman and hope
# everything still works.
find_path(FREETYPE_INCLUDE_DIR_ft2build ft2build.h
HINTS
ENV FREETYPE_DIR
PATHS
/usr/X11R6
/usr/local/X11R6
/usr/local/X11
/usr/freeware
ENV GTKMM_BASEPATH
[HKEY_CURRENT_USER\\SOFTWARE\\gtkmm\\2.4;Path]
[HKEY_LOCAL_MACHINE\\SOFTWARE\\gtkmm\\2.4;Path]
PATH_SUFFIXES include/freetype2 include
)
find_path(FREETYPE_INCLUDE_DIR_freetype2 freetype/config/ftheader.h
HINTS
ENV FREETYPE_DIR
PATHS
/usr/X11R6
/usr/local/X11R6
/usr/local/X11
/usr/freeware
ENV GTKMM_BASEPATH
[HKEY_CURRENT_USER\\SOFTWARE\\gtkmm\\2.4;Path]
[HKEY_LOCAL_MACHINE\\SOFTWARE\\gtkmm\\2.4;Path]
PATH_SUFFIXES include/freetype2 include
)
find_library(FREETYPE_LIBRARY
NAMES freetype libfreetype freetype219
HINTS
ENV FREETYPE_DIR
PATH_SUFFIXES lib
PATHS
/usr/X11R6
/usr/local/X11R6
/usr/local/X11
/usr/freeware
ENV GTKMM_BASEPATH
[HKEY_CURRENT_USER\\SOFTWARE\\gtkmm\\2.4;Path]
[HKEY_LOCAL_MACHINE\\SOFTWARE\\gtkmm\\2.4;Path]
)
# set the user variables
if(FREETYPE_INCLUDE_DIR_ft2build AND FREETYPE_INCLUDE_DIR_freetype2)
set(FREETYPE_INCLUDE_DIRS "${FREETYPE_INCLUDE_DIR_ft2build};${FREETYPE_INCLUDE_DIR_freetype2}")
endif()
set(FREETYPE_LIBRARIES "${FREETYPE_LIBRARY}")
if(FREETYPE_INCLUDE_DIR_freetype2 AND EXISTS "${FREETYPE_INCLUDE_DIR_freetype2}/freetype/freetype.h")
file(STRINGS "${FREETYPE_INCLUDE_DIR_freetype2}/freetype/freetype.h" freetype_version_str
REGEX "^#[\t ]*define[\t ]+FREETYPE_(MAJOR|MINOR|PATCH)[\t ]+[0-9]+$")
unset(FREETYPE_VERSION_STRING)
foreach(VPART MAJOR MINOR PATCH)
foreach(VLINE ${freetype_version_str})
if(VLINE MATCHES "^#[\t ]*define[\t ]+FREETYPE_${VPART}")
string(REGEX REPLACE "^#[\t ]*define[\t ]+FREETYPE_${VPART}[\t ]+([0-9]+)$" "\\1"
FREETYPE_VERSION_PART "${VLINE}")
if(FREETYPE_VERSION_STRING)
set(FREETYPE_VERSION_STRING "${FREETYPE_VERSION_STRING}.${FREETYPE_VERSION_PART}")
else()
set(FREETYPE_VERSION_STRING "${FREETYPE_VERSION_PART}")
endif()
unset(FREETYPE_VERSION_PART)
endif()
endforeach()
endforeach()
endif()
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# handle the QUIETLY and REQUIRED arguments and set FREETYPE_FOUND to TRUE if
# all listed variables are TRUE
include(${CMAKE_CURRENT_LIST_DIR}/FindPackageHandleStandardArgs.cmake)
FIND_PACKAGE_HANDLE_STANDARD_ARGS(Freetype
REQUIRED_VARS FREETYPE_LIBRARY FREETYPE_INCLUDE_DIRS
VERSION_VAR FREETYPE_VERSION_STRING)
mark_as_advanced(FREETYPE_LIBRARY FREETYPE_INCLUDE_DIR_freetype2 FREETYPE_INCLUDE_DIR_ft2build)