builds/cmake/FindHarfBuzz.cmake

   1 # Copyright (c) 2012, Intel Corporation
   2 #
   3 # Redistribution and use in source and binary forms, with or without
   4 # modification, are permitted provided that the following conditions are met:
   5 #
   6 # * Redistributions of source code must retain the above copyright notice, this
   7 #   list of conditions and the following disclaimer.
   8 # * Redistributions in binary form must reproduce the above copyright notice,
   9 #   this list of conditions and the following disclaimer in the documentation
  10 #   and/or other materials provided with the distribution.
  11 # * Neither the name of Intel Corporation nor the names of its contributors may
  12 #   be used to endorse or promote products derived from this software without
  13 #   specific prior written permission.
  14 #
  15 # THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS"
  16 # AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
  17 # IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
  18 # ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT OWNER OR CONTRIBUTORS BE
  19 # LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR
  20 # CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF
  21 # SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS
  22 # INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN
  23 # CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)
  24 # ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
  25 # POSSIBILITY OF SUCH DAMAGE.
  26
  27
  28 # Try to find HarfBuzz include and library directories.
  29 #
  30 # After successful discovery, this will set for inclusion where needed:
  31 #
  32 #   HARFBUZZ_INCLUDE_DIRS - containg the HarfBuzz headers
  33 #   HARFBUZZ_LIBRARIES    - containg the HarfBuzz library
  34
  35 include(FindPkgConfig)
  36 pkg_check_modules(PC_HARFBUZZ QUIET harfbuzz)
  37
  38 find_path(HARFBUZZ_INCLUDE_DIRS
  39   NAMES hb.h
  40   HINTS ${PC_HARFBUZZ_INCLUDEDIR}
  41         ${PC_HARFBUZZ_INCLUDE_DIRS}
  42   PATH_SUFFIXES harfbuzz)
  43
  44 find_library(HARFBUZZ_LIBRARIES
  45   NAMES harfbuzz
  46   HINTS ${PC_HARFBUZZ_LIBDIR}
  47         ${PC_HARFBUZZ_LIBRARY_DIRS})
  48
  49 if (HARFBUZZ_INCLUDE_DIRS)
  50   if (EXISTS "${HARFBUZZ_INCLUDE_DIRS}/hb-version.h")
  51     file(READ "${HARFBUZZ_INCLUDE_DIRS}/hb-version.h" _harfbuzz_version_content)
  52
  53     string(REGEX MATCH
  54            "#define +HB_VERSION_STRING +\"([0-9]+\\.[0-9]+\\.[0-9]+)\""
  55            _dummy "${_harfbuzz_version_content}")
  56     set(HARFBUZZ_VERSION "${CMAKE_MATCH_1}")
  57   endif ()
  58 endif ()
  59
  60 if ("${harfbuzz_FIND_VERSION}" VERSION_GREATER "${HARFBUZZ_VERSION}")
  61   message(FATAL_ERROR
  62     "Required version (" ${harfbuzz_FIND_VERSION} ")"
  63     " is higher than found version (" ${HARFBUZZ_VERSION} ")")
  64 endif ()
  65
  66 include(FindPackageHandleStandardArgs)
  67 find_package_handle_standard_args(
  68   harfbuzz
  69   REQUIRED_VARS HARFBUZZ_INCLUDE_DIRS HARFBUZZ_LIBRARIES
  70   VERSION_VAR HARFBUZZ_VERSION)
  71
  72 mark_as_advanced(
  73   HARFBUZZ_INCLUDE_DIRS
  74   HARFBUZZ_LIBRARIES)
  75
  76 # Allow easy linking as in
  77 #
  78 #   target_link_libraries(freetype PRIVATE Harfbuzz::Harfbuzz)
  79 #
  80 if (NOT CMAKE_VERSION VERSION_LESS 3.1)
  81   if (HARFBUZZ_FOUND AND NOT TARGET Harfbuzz::Harfbuzz)
  82     add_library(Harfbuzz::Harfbuzz INTERFACE IMPORTED)
  83     set_target_properties(
  84         Harfbuzz::Harfbuzz PROPERTIES
  85           INTERFACE_INCLUDE_DIRECTORIES "${HARFBUZZ_INCLUDE_DIRS}")
  86   endif ()
  87 endif ()