CMakeLists.txt

   1 cmake_minimum_required(VERSION 2.8.12)
   2 project(vorbis)
   3
   4 list(APPEND CMAKE_MODULE_PATH "${CMAKE_CURRENT_SOURCE_DIR}/cmake")
   5
   6 # Required modules
   7 include(GNUInstallDirs)
   8 include(CheckIncludeFiles)
   9 include(CheckLibraryExists)
  10
  11 # Build options
  12 option(BUILD_SHARED_LIBS "Build shared library" OFF)
  13 if(APPLE)
  14     option(BUILD_FRAMEWORK "Build Framework bundle for OSX" OFF)
  15 endif()
  16
  17 if(BUILD_FRAMEWORK)
  18         set(BUILD_SHARED_LIBS TRUE)
  19 endif()
  20
  21 option(INSTALL_CMAKE_PACKAGE_MODULE "Install CMake package configiguration module" ON)
  22
  23 # Extract project version from configure.ac
  24 file(READ configure.ac CONFIGURE_AC_CONTENTS)
  25 string(REGEX MATCH "AC_INIT\\(\\[libvorbis\\],\\[([0-9]*).([0-9]*).([0-9]*)" DUMMY ${CONFIGURE_AC_CONTENTS})
  26 set(PROJECT_VERSION_MAJOR ${CMAKE_MATCH_1})
  27 set(PROJECT_VERSION_MINOR ${CMAKE_MATCH_2})
  28 set(PROJECT_VERSION_PATCH ${CMAKE_MATCH_3})
  29 set(PROJECT_VERSION ${PROJECT_VERSION_MAJOR}.${PROJECT_VERSION_MINOR}.${PROJECT_VERSION_PATCH})
  30
  31 # Helper function to get version-info
  32 function(get_version_info result current_var_name age_var_name revision_var_name)
  33     string(REGEX MATCH "${current_var_name}=([0-9]*)" DUMMY ${CONFIGURE_AC_CONTENTS})
  34     set(VERSION_INFO_CURRENT ${CMAKE_MATCH_1})
  35
  36     string(REGEX MATCH "${age_var_name}=([0-9]*)" DUMMY ${CONFIGURE_AC_CONTENTS})
  37     set(VERSION_INFO_AGE ${CMAKE_MATCH_1})
  38
  39     string(REGEX MATCH "${revision_var_name}=([0-9]*)" DUMMY ${CONFIGURE_AC_CONTENTS})
  40     set(VERSION_INFO_REVISION ${CMAKE_MATCH_1})
  41
  42     math(EXPR VERSION_INFO_CURRENT_MINUS_AGE "${VERSION_INFO_CURRENT} - ${VERSION_INFO_AGE}")
  43
  44     set(${result} "${VERSION_INFO_CURRENT_MINUS_AGE}.${VERSION_INFO_AGE}.${VERSION_INFO_REVISION}" PARENT_SCOPE)
  45 endfunction()
  46
  47 # Helper function to configure pkg-config files
  48 function(configure_pkg_config_file pkg_config_file_in)
  49     set(prefix ${CMAKE_INSTALL_PREFIX})
  50     set(exec_prefix ${CMAKE_INSTALL_FULL_BINDIR})
  51     set(libdir ${CMAKE_INSTALL_FULL_LIBDIR})
  52     set(includedir ${CMAKE_INSTALL_FULL_INCLUDEDIR})
  53     set(VERSION ${PROJECT_VERSION})
  54     string(REPLACE ".in" "" pkg_config_file ${pkg_config_file_in})
  55     configure_file(${pkg_config_file_in} ${pkg_config_file} @ONLY)
  56 endfunction()
  57
  58 message(STATUS "Configuring ${PROJECT_NAME} ${PROJECT_VERSION}")
  59
  60 # Find math library
  61
  62 check_library_exists(m floor "" HAVE_LIBM)
  63
  64 # Find ogg dependency
  65 find_package(Ogg REQUIRED)
  66
  67 add_subdirectory(lib)
  68
  69 configure_pkg_config_file(vorbis.pc.in)
  70 configure_pkg_config_file(vorbisenc.pc.in)
  71 configure_pkg_config_file(vorbisfile.pc.in)
  72
  73 install(
  74     FILES
  75     ${CMAKE_CURRENT_BINARY_DIR}/vorbis.pc
  76     ${CMAKE_CURRENT_BINARY_DIR}/vorbisenc.pc
  77     ${CMAKE_CURRENT_BINARY_DIR}/vorbisfile.pc
  78     DESTINATION
  79     ${CMAKE_INSTALL_LIBDIR}/pkgconfig
  80 )