eBookReaderSwitch/thirdparty/freeglut/CMakeLists.txt

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CMAKE_MINIMUM_REQUIRED(VERSION 2.8.8 FATAL_ERROR)
PROJECT(freeglut)
# for multiarch LIBDIR support (requires cmake>=2.8.8)
INCLUDE(GNUInstallDirs)
# NOTE: On Windows and Cygwin, the dll's are placed in the
# CMAKE_RUNTIME_OUTPUT_DIRECTORY, while their corresponding import
# libraries end up in CMAKE_ARCHIVE_OUTPUT_DIRECTORY. On other
# platforms, such as Linux, the shared libraries are put in
# CMAKE_ARCHIVE_OUTPUT_DIRECTORY instead.
# Static libraries end up in CMAKE_ARCHIVE_OUTPUT_DIRECTORY on all
# platforms.
SET(CMAKE_RUNTIME_OUTPUT_DIRECTORY ${PROJECT_BINARY_DIR}/bin)
SET(CMAKE_LIBRARY_OUTPUT_DIRECTORY ${PROJECT_BINARY_DIR}/lib)
SET(CMAKE_ARCHIVE_OUTPUT_DIRECTORY ${PROJECT_BINARY_DIR}/lib)
# setup version numbers
# TODO: Update these for each release!
set(VERSION_MAJOR 3)
set(VERSION_MINOR 0)
set(VERSION_PATCH 0)
# Update fg_version.h to match the versions number here in cmake
CONFIGURE_FILE(src/fg_version.h.in src/fg_version.h)
# shared lib version numbers (change before release)
set(SO_MAJOR 3) # increment on backwards incompatible API/ABI changes
set(SO_MINOR 10) # increment on backwards compatible or internal changes
set(SO_REV 0) # if nothing else changed increment this
# FREEGLUT_BUILD_SHARED_LIBS is already a standard CMake variable, but we need to
# re-declare it here so it will show up in the GUI.
# by default, we want to build both
OPTION(FREEGLUT_BUILD_SHARED_LIBS "Build FreeGLUT shared library." ON)
OPTION(FREEGLUT_BUILD_STATIC_LIBS "Build FreeGLUT static library." ON)
# option for whether warnings and errors should be printed
OPTION(FREEGLUT_PRINT_ERRORS "Lib prints errors to stderr" ON)
#MARK_AS_ADVANCED(FREEGLUT_PRINT_ERRORS)
OPTION(FREEGLUT_PRINT_WARNINGS "Lib prints warnings to stderr" ON)
#MARK_AS_ADVANCED(FREEGLUT_PRINT_WARNINGS)
# option to also copy .pdb files to install directory when executing
# INSTALL target
IF(MSVC)
OPTION(INSTALL_PDB "Also install .pdb files" ON)
ELSE()
SET(INSTALL_PDB OFF)
ENDIF()
# OpenGL ES support
OPTION(FREEGLUT_GLES "Use OpenGL ES (requires EGL)" OFF)
# option to build either as "glut" (ON) or "freeglut" (OFF)
IF(NOT WIN32)
OPTION(FREEGLUT_REPLACE_GLUT "Be a replacement for GLUT" ON)
ENDIF()
SET(FREEGLUT_HEADERS
include/GL/freeglut.h
include/GL/freeglut_ext.h
include/GL/freeglut_std.h
include/GL/glut.h
)
SET(FREEGLUT_SRCS
${FREEGLUT_HEADERS}
src/fg_callbacks.c
src/fg_cursor.c
src/fg_display.c
src/fg_ext.c
src/fg_font_data.c
src/fg_gamemode.c
src/fg_geometry.c
src/fg_gl2.c
src/fg_gl2.h
src/fg_init.c
src/fg_init.h
src/fg_internal.h
src/fg_input_devices.c
src/fg_joystick.c
src/fg_main.c
src/fg_misc.c
src/fg_overlay.c
src/fg_spaceball.c
src/fg_state.c
src/fg_stroke_mono_roman.c
src/fg_stroke_roman.c
src/fg_structure.c
src/fg_teapot.c
src/fg_teapot_data.h
src/fg_videoresize.c
src/fg_window.c
)
# TODO: OpenGL ES requires a compatible version of these files:
IF(NOT FREEGLUT_GLES)
LIST(APPEND FREEGLUT_SRCS
src/fg_font.c
src/fg_menu.c
)
ELSE()
LIST(APPEND FREEGLUT_SRCS
src/gles_stubs.c
)
ENDIF()
IF(WIN32)
LIST(APPEND FREEGLUT_SRCS
src/mswin/fg_cursor_mswin.c
src/mswin/fg_display_mswin.c
src/mswin/fg_ext_mswin.c
src/mswin/fg_gamemode_mswin.c
src/mswin/fg_init_mswin.c
src/mswin/fg_internal_mswin.h
src/mswin/fg_input_devices_mswin.c
src/mswin/fg_joystick_mswin.c
src/mswin/fg_main_mswin.c
src/mswin/fg_menu_mswin.c
src/mswin/fg_spaceball_mswin.c
src/mswin/fg_state_mswin.c
src/mswin/fg_structure_mswin.c
src/mswin/fg_window_mswin.c
${CMAKE_BINARY_DIR}/freeglut.rc # generated below from freeglut.rc.in
)
IF (MSVC AND NOT CMAKE_CL_64)
# .def file only for 32bit Windows builds (TODO: MSVC only right
# now, needed for any other Windows platform?)
LIST(APPEND FREEGLUT_SRCS
${CMAKE_BINARY_DIR}/freeglutdll.def # generated below from src/freeglutdll.def.in
)
ENDIF()
ELSEIF(ANDROID OR BLACKBERRY)
# BlackBerry and Android share some similar design concepts and ideas, as with many mobile devices.
# As such, some classes can be shared between the two. XXX: Possibly rename shareable classes to
# a more generic name. *_stub? *_mobile?
LIST(APPEND FREEGLUT_SRCS
src/android/fg_cursor_android.c
src/android/fg_ext_android.c
src/android/fg_gamemode_android.c
src/android/fg_joystick_android.c
src/android/fg_spaceball_android.c
)
IF(ANDROID)
LIST(APPEND FREEGLUT_SRCS
src/android/native_app_glue/android_native_app_glue.c
src/android/native_app_glue/android_native_app_glue.h
src/android/fg_internal_android.h
src/android/fg_init_android.c
src/android/fg_input_devices_android.c
src/android/fg_main_android.c
src/android/fg_main_android.h
src/android/fg_runtime_android.c
src/android/fg_state_android.c
src/android/fg_structure_android.c
src/android/fg_window_android.c
)
ELSE()
LIST(APPEND FREEGLUT_SRCS
src/blackberry/fg_internal_blackberry.h
src/blackberry/fg_init_blackberry.c
src/x11/fg_input_devices_x11.c
src/blackberry/fg_main_blackberry.c
src/blackberry/fg_state_blackberry.c
src/blackberry/fg_structure_blackberry.c
src/blackberry/fg_window_blackberry.c
)
ENDIF()
ELSE()
LIST(APPEND FREEGLUT_SRCS
src/x11/fg_cursor_x11.c
src/x11/fg_ext_x11.c
src/x11/fg_gamemode_x11.c
src/x11/fg_glutfont_definitions_x11.c
src/x11/fg_init_x11.c
src/x11/fg_internal_x11.h
src/x11/fg_input_devices_x11.c
src/x11/fg_joystick_x11.c
src/x11/fg_main_x11.c
src/x11/fg_menu_x11.c
src/x11/fg_spaceball_x11.c
src/x11/fg_state_x11.c
src/x11/fg_structure_x11.c
src/x11/fg_window_x11.c
src/x11/fg_xinput_x11.c
)
IF(NOT(FREEGLUT_GLES))
LIST(APPEND FREEGLUT_SRCS
src/x11/fg_internal_x11_glx.h
src/x11/fg_display_x11_glx.c
src/x11/fg_state_x11_glx.c
src/x11/fg_state_x11_glx.h
src/x11/fg_window_x11_glx.c
src/x11/fg_window_x11_glx.h
)
ENDIF()
ENDIF()
IF(FREEGLUT_GLES)
LIST(APPEND FREEGLUT_SRCS
src/egl/fg_internal_egl.h
src/egl/fg_display_egl.c
src/egl/fg_ext_egl.c
src/egl/fg_init_egl.c
src/egl/fg_init_egl.h
src/egl/fg_state_egl.c
src/egl/fg_state_egl.h
src/egl/fg_structure_egl.c
src/egl/fg_structure_egl.h
src/egl/fg_window_egl.c
src/egl/fg_window_egl.h
)
ENDIF()
# For OpenGL ES (GLES): compile with -DFREEGLUT_GLES to cleanly
# bootstrap headers inclusion in freeglut_std.h; this constant also
# need to be defined in client applications (e.g. through pkg-config),
# but do use GLES constants directly for all other needs
# GLES1 and GLES2 libraries are compatible and can be co-linked.
IF(FREEGLUT_GLES)
ADD_DEFINITIONS(-DFREEGLUT_GLES)
LIST(APPEND LIBS GLESv2 GLESv1_CM EGL)
ELSE()
FIND_PACKAGE(OpenGL REQUIRED)
LIST(APPEND LIBS ${OPENGL_gl_LIBRARY})
INCLUDE_DIRECTORIES(${OPENGL_INCLUDE_DIR})
ENDIF()
# lib m for math, not needed on windows
IF (NOT WIN32)
# For compilation:
LIST(APPEND LIBS m)
# For CHECK_FUNCTION_EXISTS:
LIST(APPEND CMAKE_REQUIRED_LIBRARIES m)
ENDIF()
IF(WIN32)
# hide insecure CRT warnings, common practice
ADD_DEFINITIONS(-D_CRT_SECURE_NO_WARNINGS)
IF(MSVC)
SET( CMAKE_DEBUG_POSTFIX "d" )
ENDIF(MSVC)
# enable the use of Win2000 APIs (needed for really old compilers like MSVC6)
ADD_DEFINITIONS(-D_WIN32_WINNT=0x0500)
ADD_DEFINITIONS(-DWINVER=0x0500)
ENDIF()
IF(CMAKE_COMPILER_IS_GNUCC)
SET(CMAKE_C_FLAGS "${CMAKE_C_FLAGS} -Wall")
IF(NOT(ANDROID OR BLACKBERRY))
# not setting -ansi as EGL/KHR headers doesn't support it
SET(CMAKE_C_FLAGS "${CMAKE_C_FLAGS} -pedantic")
ENDIF()
ENDIF(CMAKE_COMPILER_IS_GNUCC)
INCLUDE(CheckIncludeFiles)
IF(UNIX AND NOT(ANDROID OR BLACKBERRY))
FIND_PACKAGE(X11 REQUIRED)
INCLUDE_DIRECTORIES(${X11_INCLUDE_DIR})
LIST(APPEND LIBS ${X11_LIBRARIES})
IF(X11_Xrandr_FOUND)
SET(HAVE_X11_EXTENSIONS_XRANDR_H TRUE)
LIST(APPEND LIBS ${X11_Xrandr_LIB})
ENDIF()
IF(X11_xf86vmode_FOUND)
SET(HAVE_X11_EXTENSIONS_XF86VMODE_H TRUE)
LIST(APPEND LIBS ${X11_Xxf86vm_LIB})
ENDIF()
IF(X11_Xinput_FOUND)
# Needed for multi-touch:
CHECK_INCLUDE_FILES("${X11_Xinput_INCLUDE_PATH}/X11/extensions/XInput2.h" HAVE_X11_EXTENSIONS_XINPUT2_H)
LIST(APPEND LIBS ${X11_Xinput_LIB})
ENDIF()
ENDIF()
IF(ANDROID)
# -landroid for ANativeWindow
# -llog for native Android logging
LIST(APPEND LIBS android log)
ELSEIF(BLACKBERRY)
# -lbps for event loop
# -screen for native screen
LIST(APPEND LIBS bps screen)
if(NOT PLAYBOOK)
# -lslog2 for logging
# -pps for low-level screen manipulation
LIST(APPEND LIBS slog2 pps)
ENDIF()
ENDIF()
INCLUDE(CheckFunctionExists)
INCLUDE(CheckTypeSize)
CHECK_INCLUDE_FILES(sys/types.h HAVE_SYS_TYPES_H)
CHECK_INCLUDE_FILES(unistd.h HAVE_UNISTD_H)
CHECK_INCLUDE_FILES(sys/time.h HAVE_SYS_TIME_H)
CHECK_INCLUDE_FILES(stdbool.h HAVE_STDBOOL_H)
CHECK_INCLUDE_FILES(sys/param.h HAVE_SYS_PARAM_H)
CHECK_INCLUDE_FILES(sys/ioctl.h HAVE_SYS_IOCTL_H)
CHECK_INCLUDE_FILES(fcntl.h HAVE_FCNTL_H)
CHECK_INCLUDE_FILES(usbhid.h HAVE_USBHID_H)
CHECK_FUNCTION_EXISTS(gettimeofday HAVE_GETTIMEOFDAY)
CHECK_FUNCTION_EXISTS(XParseGeometry HAVE_XPARSEGEOMETRY)
IF (NOT HAVE_XPARSEGEOMETRY)
LIST(APPEND FREEGLUT_SRCS
src/util/xparsegeometry_repl.c
src/util/xparsegeometry_repl.h)
SET(NEED_XPARSEGEOMETRY_IMPL TRUE)
ENDIF()
# decide on suitable type for internal time keeping, 64-bit if possible
CHECK_INCLUDE_FILES(stdint.h HAVE_STDINT_H)
CHECK_INCLUDE_FILES(inttypes.h HAVE_INTTYPES_H)
IF (NOT (HAVE_STDINT_H OR HAVE_INTTYPES_H))
IF (MSVC)
# Some old Microsoft VC releases don't support unsigned long
# long, but all we care about is support for unsigned __int64 on
# MSVC, so test for presence of that type
CHECK_TYPE_SIZE("unsigned __int64" U__INT64 BUILTIN_TYPES_ONLY)
ELSEIF()
CHECK_TYPE_SIZE("unsigned long long" ULONG_LONG BUILTIN_TYPES_ONLY)
ENDIF()
ENDIF()
# The generated config.h is placed in the project's build directory, just to
# ensure that all CMake-generated files are kept away from the main source tree.
# As a result, the build directory must to be added to the include path list.
CONFIGURE_FILE(${CMAKE_CURRENT_SOURCE_DIR}/config.h.in ${CMAKE_BINARY_DIR}/config.h)
INCLUDE_DIRECTORIES(BEFORE ${CMAKE_BINARY_DIR} ${CMAKE_CURRENT_SOURCE_DIR}/include ${CMAKE_CURRENT_SOURCE_DIR}/src)
ADD_DEFINITIONS(-DHAVE_CONFIG_H)
IF(WIN32)
# we also have to generate freeglut.rc, which contains the version
# number
CONFIGURE_FILE(${CMAKE_CURRENT_SOURCE_DIR}/freeglut.rc.in ${CMAKE_BINARY_DIR}/freeglut.rc)
IF (MSVC AND NOT CMAKE_CL_64)
# .def file only for 32bit Windows builds with Visual Studio
CONFIGURE_FILE(${CMAKE_CURRENT_SOURCE_DIR}/src/freeglutdll.def.in ${CMAKE_BINARY_DIR}/freeglutdll.def)
ENDIF()
ENDIF()
IF(FREEGLUT_BUILD_SHARED_LIBS)
ADD_LIBRARY(freeglut SHARED ${FREEGLUT_SRCS})
ENDIF()
IF(FREEGLUT_BUILD_STATIC_LIBS)
ADD_LIBRARY(freeglut_static STATIC ${FREEGLUT_SRCS})
ENDIF()
IF(WIN32)
LIST(APPEND LIBS winmm)
IF(FREEGLUT_BUILD_SHARED_LIBS)
SET_TARGET_PROPERTIES(freeglut PROPERTIES COMPILE_FLAGS -DFREEGLUT_EXPORTS)
ENDIF()
IF(FREEGLUT_BUILD_STATIC_LIBS)
SET_TARGET_PROPERTIES(freeglut_static PROPERTIES COMPILE_FLAGS -DFREEGLUT_STATIC)
# need to set machine:x64 for linker, at least for VC10, and
# doesn't hurt for older compilers:
# http://public.kitware.com/Bug/view.php?id=11240#c22768
IF (CMAKE_CL_64)
SET_TARGET_PROPERTIES(freeglut_static PROPERTIES STATIC_LIBRARY_FLAGS "/machine:x64")
ENDIF()
ENDIF()
ELSE()
# on UNIX we need to make sure:
# - all shared libraries must have a soname/version, see :
# http://sourceware.org/autobook/autobook/autobook_91.html#SEC91
# http://www.gnu.org/software/libtool/manual/html_node/Updating-version-info.html
# Current: -version-info 12:0:9 -> 3.9.0
# Note: most platforms now prefer the latter major.minor.revision form
# (e.g. FreeBSD, cf. http://debbugs.gnu.org/cgi/bugreport.cgi?bug=8765),
# or special-cased FreeGLUT long ago (e.g. .so.4 on OpenBSD), so
# the lack of support for current:revision:age in CMake should
# not be a problem.
# - the output library should be named glut so it'll be linkable with -lglut
# (unless FREEGLUT_REPLACE_GLUT is false).
# - the shared library should link to the dependency libraries so that the user
# won't have to link them explicitly (they shouldn't have to know that we depend
# on Xrandr or Xxf86vm)
IF(FREEGLUT_GLES)
SET(LIBNAME freeglut-gles)
ELSE()
IF(FREEGLUT_REPLACE_GLUT)
SET(LIBNAME glut)
ELSE()
SET(LIBNAME freeglut)
ENDIF()
ENDIF()
IF(FREEGLUT_BUILD_SHARED_LIBS)
SET_TARGET_PROPERTIES(freeglut PROPERTIES VERSION ${SO_MAJOR}.${SO_MINOR}.${SO_REV} SOVERSION ${SO_MAJOR} OUTPUT_NAME ${LIBNAME})
ENDIF()
IF(FREEGLUT_BUILD_STATIC_LIBS)
SET_TARGET_PROPERTIES(freeglut_static PROPERTIES OUTPUT_NAME ${LIBNAME})
ENDIF()
IF(ANDROID)
# Not in CMake toolchain file, because the toolchain
# file is called several times and generally doesn't
# seem to be meant for modifying CFLAGS:
# '-mandroid' is not mandatory but doesn't hurt
# '-O0 -gstabs+' helps the currently buggy GDB port
# Too late to manipulate ENV: SET(ENV{CFLAGS} "$ENV{CFLAGS} -mandroid")
# Not using _INIT variables, they seem to be used internally only
SET(CMAKE_C_FLAGS "${CMAKE_C_FLAGS} -mandroid")
SET(CMAKE_C_FLAGS_DEBUG "${CMAKE_C_FLAGS_DEBUG} -O0 -gstabs+")
ENDIF()
ENDIF()
IF(FREEGLUT_BUILD_SHARED_LIBS)
TARGET_LINK_LIBRARIES(freeglut ${LIBS})
ENDIF()
IF(FREEGLUT_BUILD_STATIC_LIBS)
TARGET_LINK_LIBRARIES(freeglut_static ${LIBS})
ENDIF()
IF(FREEGLUT_BUILD_SHARED_LIBS)
INSTALL(TARGETS freeglut
RUNTIME DESTINATION bin
LIBRARY DESTINATION ${CMAKE_INSTALL_LIBDIR}
ARCHIVE DESTINATION ${CMAKE_INSTALL_LIBDIR}
)
IF(INSTALL_PDB)
INSTALL(FILES ${CMAKE_RUNTIME_OUTPUT_DIRECTORY}/Debug/freeglut${CMAKE_DEBUG_POSTFIX}.pdb
DESTINATION bin
CONFIGURATIONS Debug)
ENDIF()
ENDIF()
IF(FREEGLUT_BUILD_STATIC_LIBS)
INSTALL(TARGETS freeglut_static
RUNTIME DESTINATION bin
LIBRARY DESTINATION ${CMAKE_INSTALL_LIBDIR}
ARCHIVE DESTINATION ${CMAKE_INSTALL_LIBDIR}
)
IF(INSTALL_PDB)
INSTALL(FILES ${CMAKE_ARCHIVE_OUTPUT_DIRECTORY}/Debug/freeglut_static${CMAKE_DEBUG_POSTFIX}.pdb
DESTINATION lib
CONFIGURATIONS Debug)
ENDIF()
ENDIF()
INSTALL(FILES ${FREEGLUT_HEADERS} DESTINATION include/GL)
# Optionally build demos, on by default.
option( FREEGLUT_BUILD_DEMOS "Build FreeGLUT demos." ON )
SET(DEMO_LIBS ${OPENGL_glu_LIBRARY} ${LIBS})
# lib m for math, not needed on windows
IF (NOT WIN32)
LIST(APPEND DEMO_LIBS m)
ENDIF()
MACRO(ADD_DEMO name)
IF( FREEGLUT_BUILD_DEMOS )
IF(FREEGLUT_BUILD_SHARED_LIBS)
ADD_EXECUTABLE(${name} ${ARGN})
TARGET_LINK_LIBRARIES(${name} ${DEMO_LIBS} freeglut)
IF(WIN32 AND MSVC)
SET_TARGET_PROPERTIES(${name} PROPERTIES DEBUG_POSTFIX d)
ENDIF()
ENDIF()
IF(FREEGLUT_BUILD_STATIC_LIBS)
ADD_EXECUTABLE(${name}_static ${ARGN})
TARGET_LINK_LIBRARIES(${name}_static ${DEMO_LIBS} freeglut_static)
SET_TARGET_PROPERTIES(${name}_static PROPERTIES COMPILE_FLAGS -DFREEGLUT_STATIC)
IF(WIN32 AND MSVC)
SET_TARGET_PROPERTIES(${name}_static PROPERTIES DEBUG_POSTFIX d)
ENDIF()
ENDIF()
ENDIF()
ENDMACRO()
ADD_DEMO(CallbackMaker progs/demos/CallbackMaker/CallbackMaker.c)
ADD_DEMO(Fractals progs/demos/Fractals/fractals.c)
ADD_DEMO(Fractals_random progs/demos/Fractals_random/fractals_random.c)
ADD_DEMO(Lorenz progs/demos/Lorenz/lorenz.c)
IF (NOT WIN32)
ADD_DEMO(One progs/demos/One/one.c)
ELSE()
ADD_DEMO(One progs/demos/One/one.c
progs/demos/One/one.rc)
ENDIF()
ADD_DEMO(Resizer progs/demos/Resizer/Resizer.cpp)
ADD_DEMO(multi-touch progs/demos/multi-touch/multi-touch.c)
ADD_DEMO(shapes progs/demos/shapes/shapes.c
progs/demos/shapes/glmatrix.h
progs/demos/shapes/glmatrix.c)
ADD_DEMO(smooth_opengl3 progs/demos/smooth_opengl3/smooth_opengl3.c)
IF(UNIX)
ADD_DEMO(spaceball progs/demos/spaceball/spaceball.c
progs/demos/spaceball/vmath.c
progs/demos/spaceball/vmath.h)
ENDIF()
ADD_DEMO(subwin progs/demos/subwin/subwin.c)
ADD_DEMO(timer progs/demos/timer/timer.c)
# pkg-config support, to install at $(libdir)/pkgconfig
# Define static build dependencies
IF(WIN32)
SET(PC_LIBS_PRIVATE "-lopengl32 -lwinmm -lgdi32 -lm")
ELSEIF(FREEGLUT_GLES)
IF(ANDROID)
SET(PC_LIBS_PRIVATE "-llog -landroid -lGLESv2 -lGLESv1_CM -lEGL -lm")
ELSEIF(BLACKBERRY)
IF(PLAYBOOK)
SET(PC_LIBS_PRIVATE "-lbps -lscreen -lGLESv2 -lGLESv1_CM -lEGL -lm")
ELSE()
SET(PC_LIBS_PRIVATE "-lbps -lslog2 -lscreen -lGLESv2 -lGLESv1_CM -lEGL -lm")
ENDIF()
ELSE()
SET(PC_LIBS_PRIVATE "-lX11 -lXxf86vm -lXrandr -lGLESv2 -lGLESv1_CM -lEGL -lm")
ENDIF()
ELSE()
SET(PC_LIBS_PRIVATE "-lX11 -lXxf86vm -lXrandr -lGL -lm")
ENDIF()
# Client applications need to define FreeGLUT GLES version to
# bootstrap headers inclusion in freeglut_std.h:
SET(PC_LIBNAME "glut")
SET(PC_FILENAME "freeglut.pc")
IF(FREEGLUT_GLES)
SET(PC_CFLAGS "-DFREEGLUT_GLES")
SET(PC_LIBNAME "freeglut-gles")
SET(PC_FILENAME "freeglut-gles.pc")
ENDIF()
CONFIGURE_FILE(${CMAKE_CURRENT_SOURCE_DIR}/freeglut.pc.in ${CMAKE_BINARY_DIR}/freeglut.pc @ONLY)
INSTALL(FILES ${CMAKE_BINARY_DIR}/freeglut.pc DESTINATION ${CMAKE_INSTALL_LIBDIR}/pkgconfig/ RENAME ${PC_FILENAME})
# TODO: change the library and .pc name when building for GLES,
# e.g. -lglut-GLES