Add more compiler checks for GCC
[freeglut] / CMakeLists.txt
1 PROJECT(freeglut)
2 CMAKE_MINIMUM_REQUIRED(VERSION 2.6)
3
4 # NOTE: On Windows and Cygwin, the dll's are placed in the
5 # CMAKE_RUNTIME_OUTPUT_DIRECTORY, while their corresponding import
6 # libraries end up in CMAKE_ARCHIVE_OUTPUT_DIRECTORY. On other
7 # platforms, such as Linux, the shared libraries are put in
8 # CMAKE_ARCHIVE_OUTPUT_DIRECTORY instead.
9 # Static libraries end up in CMAKE_ARCHIVE_OUTPUT_DIRECTORY on all
10 # platforms (unless 
11 SET(CMAKE_RUNTIME_OUTPUT_DIRECTORY ${PROJECT_BINARY_DIR}/bin)
12 SET(CMAKE_ARCHIVE_OUTPUT_DIRECTORY ${PROJECT_BINARY_DIR}/lib)
13
14 # setup version numbers
15 # TODO: Update these for each release!
16 set(VERSION_MAJOR 3)
17 set(VERSION_MINOR 0)
18 set(VERSION_PATCH 0)
19
20
21 # BUILD_SHARED_LIBS is already a standard CMake variable, but we need to
22 # re-declare it here so it will show up in the GUI.
23 # by default, we want to build both
24 OPTION(BUILD_SHARED_LIBS "Build FreeGLUT shared library." ON)
25 OPTION(BUILD_STATIC_LIBS "Build FreeGLUT static library." ON)
26
27 # OpenGL ES support
28 OPTION(FREEGLUT_GLES1 "Use OpenGL ES 1.x (requires EGL)" OFF)
29 OPTION(FREEGLUT_GLES2 "Use OpenGL ES 2.x (requires EGL) (overrides BUILD_GLES1)" OFF)
30
31
32 SET(FREEGLUT_HEADERS
33     include/GL/freeglut.h
34     include/GL/freeglut_ext.h
35     include/GL/freeglut_std.h
36     include/GL/glut.h
37 )
38 SET(FREEGLUT_SRCS
39     ${FREEGLUT_HEADERS}
40     src/fg_callbacks.c
41     src/fg_cursor.c
42     src/fg_display.c
43     src/fg_ext.c
44     src/fg_font_data.c
45     src/fg_gamemode.c
46     src/fg_gl2.c
47     src/fg_gl2.h
48     src/fg_init.c
49     src/fg_internal.h
50     src/fg_input_devices.c
51     src/fg_joystick.c
52     src/fg_main.c
53     src/fg_misc.c
54     src/fg_overlay.c
55     src/fg_spaceball.c
56     src/fg_state.c
57     src/fg_stroke_mono_roman.c
58     src/fg_stroke_roman.c
59     src/fg_structure.c
60     src/fg_videoresize.c
61     src/fg_window.c
62 )
63 # TODO: OpenGL ES requires a compatible version of these files:
64 IF(NOT FREEGLUT_GLES2 AND NOT FREEGLUT_GLES1)
65     LIST(APPEND FREEGLUT_SRCS
66         src/fg_font.c
67         src/fg_menu.c
68         src/fg_teapot.c
69         src/fg_teapot_data.h
70         src/fg_geometry.c
71     )
72 ELSE()
73     LIST(APPEND FREEGLUT_SRCS
74         src/fg_geometry.c
75         src/gles_stubs.c
76     )
77 ENDIF()
78
79 IF(WIN32)
80     LIST(APPEND FREEGLUT_SRCS
81         src/mswin/fg_cursor_mswin.c
82         src/mswin/fg_display_mswin.c
83         src/mswin/fg_ext_mswin.c
84         src/mswin/fg_gamemode_mswin.c
85         src/mswin/fg_init_mswin.c
86         src/mswin/fg_internal_mswin.h
87         src/mswin/fg_input_devices_mswin.c
88         src/mswin/fg_joystick_mswin.c
89         src/mswin/fg_main_mswin.c
90         src/mswin/fg_menu_mswin.c
91         src/mswin/fg_spaceball_mswin.c
92         src/mswin/fg_state_mswin.c
93         src/mswin/fg_structure_mswin.c
94         src/mswin/fg_window_mswin.c
95         ${CMAKE_BINARY_DIR}/freeglut.rc # generated below from freeglut.rc.in
96     )
97     IF (MSVC AND NOT CMAKE_CL_64)
98         # .def file only for 32bit Windows builds
99         LIST(APPEND FREEGLUT_SRCS
100             ${CMAKE_BINARY_DIR}/freeglutdll.def # generated below from src/freeglutdll.def.in
101         )
102     ENDIF()
103
104 ELSEIF(ANDROID)
105     LIST(APPEND FREEGLUT_SRCS
106         src/egl/fg_internal_egl.h
107         src/egl/fg_display_egl.c
108         src/egl/fg_ext_egl.c
109         src/egl/fg_init_egl.c
110         src/egl/fg_state_egl.c
111         src/egl/fg_structure_egl.c
112         src/egl/fg_structure_egl.h
113         src/egl/fg_window_egl.c
114         src/egl/fg_window_egl.h
115         src/android/native_app_glue/android_native_app_glue.c
116         src/android/native_app_glue/android_native_app_glue.h
117         src/android/fg_internal_android.h
118         src/android/fg_cursor_android.c
119         src/android/fg_ext_android.c
120         src/android/fg_gamemode_android.c
121         src/android/fg_init_android.c
122         src/android/fg_input_devices_android.c
123         src/android/fg_joystick_android.c
124         src/android/fg_main_android.c
125         src/android/fg_runtime_android.c
126         src/android/fg_spaceball_android.c
127         src/android/fg_state_android.c
128         src/android/fg_structure_android.c
129         src/android/fg_window_android.c
130     )
131 ELSE()
132     LIST(APPEND FREEGLUT_SRCS
133         src/x11/fg_cursor_x11.c
134         src/x11/fg_ext_x11.c
135         src/x11/fg_gamemode_x11.c
136         src/x11/fg_glutfont_definitions_x11.c
137         src/x11/fg_init_x11.c
138         src/x11/fg_internal_x11.h
139         src/x11/fg_input_devices_x11.c
140         src/x11/fg_joystick_x11.c
141         src/x11/fg_main_x11.c
142         src/x11/fg_menu_x11.c
143         src/x11/fg_spaceball_x11.c
144         src/x11/fg_state_x11.c
145         src/x11/fg_structure_x11.c
146         src/x11/fg_window_x11.c
147         src/x11/fg_xinput_x11.c
148     )
149     IF(FREEGLUT_GLES2 OR FREEGLUT_GLES1)
150         LIST(APPEND FREEGLUT_SRCS
151             src/egl/fg_internal_egl.h
152             src/egl/fg_display_egl.c
153             src/egl/fg_ext_egl.c
154             src/egl/fg_init_egl.c
155             src/egl/fg_state_egl.c
156             src/egl/fg_structure_egl.c
157             src/egl/fg_window_egl.c
158         )
159     ELSE()
160         LIST(APPEND FREEGLUT_SRCS
161             src/x11/fg_internal_x11_glx.h
162             src/x11/fg_display_x11_glx.c
163             src/x11/fg_state_x11_glx.c
164             src/x11/fg_window_x11_glx.c
165             src/x11/fg_window_x11_glx.h
166         )
167     ENDIF()
168 ENDIF()
169
170 # For OpenGL ES (GLES):
171 # - compile with -DFREEGLUT_GLES1 and -DFREEGLUT_GLES2 to cleanly
172 #   bootstrap headers inclusion in freeglut_std.h; these constants
173 #   also need to be defined in client applications (e.g through
174 #   pkg-config), but use GLES constants directly for all other needs
175 # - define GLES version-specific library
176 IF(FREEGLUT_GLES2)
177   ADD_DEFINITIONS(-DFREEGLUT_GLES2)
178   LIST(APPEND LIBS GLESv2 EGL)
179 ELSEIF(FREEGLUT_GLES1)
180   ADD_DEFINITIONS(-DFREEGLUT_GLES1)
181   LIST(APPEND LIBS GLESv1_CM EGL)
182 ELSE()
183   FIND_PACKAGE(OpenGL REQUIRED)
184   LIST(APPEND LIBS ${OPENGL_gl_LIBRARY})
185   INCLUDE_DIRECTORIES(${OPENGL_INCLUDE_DIR})
186 ENDIF()
187
188 # lib m for math, not needed on windows
189 IF (NOT WIN32)
190     LIST(APPEND LIBS m)
191 ENDIF()
192
193 IF(WIN32)
194     # hide insecure CRT warnings, common practice
195     ADD_DEFINITIONS(-D_CRT_SECURE_NO_WARNINGS)
196 ENDIF()
197
198 IF(CMAKE_COMPILER_IS_GNUCC)
199   SET(CMAKE_C_FLAGS "${CMAKE_C_FLAGS} -Wall -pedantic")
200   IF(!ANDROID)
201     # not setting -ansi as EGL/KHR headers doesn't support it
202     SET(CMAKE_C_FLAGS "${CMAKE_C_FLAGS} -ansi")
203   ENDIF()
204 ENDIF(CMAKE_COMPILER_IS_GNUCC)
205
206 if(UNIX AND NOT ANDROID)
207     FIND_PACKAGE(X11 REQUIRED)
208     LIST(APPEND LIBS ${X11_LIBRARIES})
209     IF(X11_Xrandr_FOUND)
210         SET(HAVE_X11_EXTENSIONS_XRANDR_H TRUE)
211         LIST(APPEND LIBS ${X11_Xrandr_LIB})
212     ENDIF()
213     IF(X11_xf86vmode_FOUND)
214         SET(HAVE_X11_EXTENSIONS_XF86VMODE_H TRUE)
215         # Work-around http://www.cmake.org/Bug/bug_view_page.php?bug_id=6976
216         IF(NOT "${X11_Xxf86vm_LIB}")
217             SET(X11_Xxf86vm_LIB "Xxf86vm")
218         ENDIF()
219         LIST(APPEND LIBS ${X11_Xxf86vm_LIB})
220     ENDIF()
221 ENDIF()
222
223 INCLUDE(CheckIncludeFiles)
224 INCLUDE(CheckFunctionExists)
225 INCLUDE(CheckTypeSize)
226 CHECK_INCLUDE_FILES(sys/types.h HAVE_SYS_TYPES_H)
227 CHECK_INCLUDE_FILES(unistd.h    HAVE_UNISTD_H)
228 CHECK_INCLUDE_FILES(sys/time.h  HAVE_SYS_TIME_H)
229 CHECK_INCLUDE_FILES(stdbool.h   HAVE_STDBOOL_H)
230 CHECK_INCLUDE_FILES(sys/param.h HAVE_SYS_PARAM_H)
231 CHECK_INCLUDE_FILES(sys/ioctl.h HAVE_SYS_IOCTL_H)
232 CHECK_INCLUDE_FILES(fcntl.h     HAVE_FCNTL_H)
233 CHECK_INCLUDE_FILES(errno.h     HAVE_ERRNO_H)
234 CHECK_INCLUDE_FILES(usbhid.h    HAVE_USBHID_H)
235 CHECK_FUNCTION_EXISTS(gettimeofday HAVE_GETTIMEOFDAY)
236 CHECK_FUNCTION_EXISTS(vfprintf  HAVE_VFPRINTF)
237 CHECK_FUNCTION_EXISTS(_doprnt   HAVE_DOPRNT)
238 CHECK_FUNCTION_EXISTS(XParseGeometry   HAVE_XPARSEGEOMETRY)
239 IF (NOT HAVE_XPARSEGEOMETRY)
240    LIST(APPEND FREEGLUT_SRCS
241         src/util/xparsegeometry_repl.c
242         src/util/xparsegeometry_repl.h)
243    SET(NEED_XPARSEGEOMETRY_IMPL TRUE)
244 ENDIF()
245 # decide on suitable type for internal time keeping, 64-bit if possible
246 CHECK_INCLUDE_FILES(stdint.h    HAVE_STDINT_H)
247 CHECK_INCLUDE_FILES(inttypes.h  HAVE_INTTYPES_H)
248 IF (NOT (HAVE_STDINT_H OR HAVE_INTTYPES_H))
249     IF (MSVC)
250         # Some old Microsoft VC don't support unsigned long long, but all we
251         # care about support unsigned __int64, so test for presence of that
252         # type
253         CHECK_TYPE_SIZE("unsigned __int64" U__INT64 BUILTIN_TYPES_ONLY)
254     ELSEIF()
255         CHECK_TYPE_SIZE("unsigned long long" ULONG_LONG BUILTIN_TYPES_ONLY)
256     ENDIF()
257 ENDIF()
258
259
260 # The generated config.h is placed in the project's build directory, just to
261 # ensure that all CMake-generated files are kept away from the main source tree.
262 # As a result, the build directory must to be added to the include path list.
263 CONFIGURE_FILE(${CMAKE_SOURCE_DIR}/config.h.in ${CMAKE_BINARY_DIR}/config.h)
264 INCLUDE_DIRECTORIES(${CMAKE_BINARY_DIR} ${CMAKE_SOURCE_DIR}/include ${CMAKE_SOURCE_DIR}/src)
265 ADD_DEFINITIONS(-DHAVE_CONFIG_H)
266 IF(WIN32)
267     # we also have to generate freeglut.rc, which contains the version
268     # number
269     CONFIGURE_FILE(${CMAKE_SOURCE_DIR}/freeglut.rc.in ${CMAKE_BINARY_DIR}/freeglut.rc)
270     IF (MSVC AND NOT CMAKE_CL_64)
271         # .def file only for 32bit Windows builds with Visual Studio
272         CONFIGURE_FILE(${CMAKE_SOURCE_DIR}/src/freeglutdll.def.in ${CMAKE_BINARY_DIR}/freeglutdll.def)
273     ENDIF()
274 ENDIF()
275
276 IF(BUILD_SHARED_LIBS)
277     ADD_LIBRARY(freeglut SHARED ${FREEGLUT_SRCS})
278 ENDIF()
279 IF(BUILD_STATIC_LIBS)
280     ADD_LIBRARY(freeglut_static STATIC ${FREEGLUT_SRCS})
281 ENDIF()
282
283
284 IF(WIN32)
285     LIST(APPEND LIBS winmm)
286     IF(BUILD_SHARED_LIBS)
287         SET_TARGET_PROPERTIES(freeglut PROPERTIES COMPILE_FLAGS -DFREEGLUT_EXPORTS)
288     ENDIF()
289     IF(BUILD_STATIC_LIBS)
290         SET_TARGET_PROPERTIES(freeglut_static PROPERTIES COMPILE_FLAGS -DFREEGLUT_STATIC)
291         # need to set machine:x64 for linker, at least for VC10, and
292         # doesn't hurt for older compilers:
293         # http://public.kitware.com/Bug/view.php?id=11240#c22768
294         IF (CMAKE_CL_64)
295             SET_TARGET_PROPERTIES(freeglut_static PROPERTIES STATIC_LIBRARY_FLAGS "/machine:x64")
296         ENDIF()
297     ENDIF()
298 ELSE()
299     # on UNIX we need to make sure:
300     # - all shared libraries must have a soname/version, see :
301     #   http://sourceware.org/autobook/autobook/autobook_91.html#SEC91
302     #   http://www.gnu.org/software/libtool/manual/html_node/Updating-version-info.html
303     #   Current: -version-info 12:0:9 -> 3.9.0
304     # - the output library should be named glut so it'll be linkable with -lglut
305     # - the shared library should link to the dependency libraries so that the user
306     #   won't have to link them explicitly (they shouldn't have to know that we depend
307     #   on Xrandr or Xxf86vm)
308     IF(FREEGLUT_GLES2)
309       SET(LIBNAME freeglut-gles2)
310     ELSEIF(FREEGLUT_GLES1)
311       SET(LIBNAME freeglut-gles1)
312     ELSE()
313       SET(LIBNAME glut)
314     ENDIF()
315
316     SET_TARGET_PROPERTIES(freeglut PROPERTIES VERSION 3.9.0 SOVERSION 3 OUTPUT_NAME ${LIBNAME})
317     SET_TARGET_PROPERTIES(freeglut_static PROPERTIES OUTPUT_NAME ${LIBNAME})
318     IF(ANDROID)
319         # Not in CMake toolchain file, because the toolchain
320         # file is called several times and generally doesn't
321         # seem to be meant for modifying CFLAGS:
322         # '-mandroid' is not mandatory but doesn't hurt
323         # '-O0 -gstabs+' helps the currently buggy GDB port
324         # Too late to manipulate ENV: SET(ENV{CFLAGS} "$ENV{CFLAGS} -mandroid")
325         # Not using _INIT variables, they seem to be used internally only
326         SET(CMAKE_C_FLAGS "${CMAKE_C_FLAGS} -mandroid")
327         SET(CMAKE_C_FLAGS_DEBUG "${CMAKE_C_FLAGS_DEBUG} -O0 -gstabs+")
328     ENDIF()
329 ENDIF()
330 IF(BUILD_SHARED_LIBS)
331     TARGET_LINK_LIBRARIES(freeglut ${LIBS})
332 ENDIF()
333 IF(BUILD_STATIC_LIBS)
334     TARGET_LINK_LIBRARIES(freeglut_static ${LIBS})
335 ENDIF()
336
337 IF(BUILD_SHARED_LIBS)
338     INSTALL(TARGETS freeglut DESTINATION lib)
339 ENDIF()
340 IF(BUILD_STATIC_LIBS)
341     INSTALL(TARGETS freeglut_static DESTINATION lib)
342 ENDIF()
343 INSTALL(FILES ${FREEGLUT_HEADERS} DESTINATION include/GL)
344
345
346
347 # Optionally build demos, on by default.
348 option( FREEGLUT_BUILD_DEMOS "Build FreeGLUT demos." ON )
349
350 SET(DEMO_LIBS ${OPENGL_glu_LIBRARY} ${LIBS})
351 # lib m for math, not needed on windows
352 IF (NOT WIN32)
353     LIST(APPEND DEMO_LIBS m)
354 ENDIF()
355
356 MACRO(ADD_DEMO name)
357     IF( FREEGLUT_BUILD_DEMOS )
358         IF(BUILD_SHARED_LIBS)
359             ADD_EXECUTABLE(${name} ${ARGN})
360             TARGET_LINK_LIBRARIES(${name} ${DEMO_LIBS} freeglut)
361         ENDIF()
362         IF(BUILD_STATIC_LIBS)
363             ADD_EXECUTABLE(${name}_static ${ARGN})
364             TARGET_LINK_LIBRARIES(${name}_static ${DEMO_LIBS} freeglut_static)
365             SET_TARGET_PROPERTIES(${name}_static PROPERTIES COMPILE_FLAGS -DFREEGLUT_STATIC)
366         ENDIF()
367     ENDIF()
368 ENDMACRO()
369
370 ADD_DEMO(CallbackMaker   progs/demos/CallbackMaker/CallbackMaker.c)
371 ADD_DEMO(Fractals        progs/demos/Fractals/fractals.c)
372 ADD_DEMO(Fractals_random progs/demos/Fractals_random/fractals_random.c)
373 ADD_DEMO(Lorenz          progs/demos/Lorenz/lorenz.c)
374 ADD_DEMO(One             progs/demos/One/one.c)
375 ADD_DEMO(Resizer         progs/demos/Resizer/Resizer.cpp)
376 ADD_DEMO(shapes          progs/demos/shapes/shapes.c)
377 ADD_DEMO(smooth_opengl3  progs/demos/smooth_opengl3/smooth_opengl3.c)
378 ADD_DEMO(spaceball       progs/demos/spaceball/spaceball.c
379                          progs/demos/spaceball/vmath.c
380                          progs/demos/spaceball/vmath.h)
381 ADD_DEMO(subwin          progs/demos/subwin/subwin.c)
382 ADD_DEMO(timer           progs/demos/timer/timer.c)
383
384 # finally, if any demos are built, copy needed files to output directory
385 # (currently, thats just the input file for the Fractals demo)
386 IF(FREEGLUT_BUILD_DEMOS)
387     # 1) copy fractals.dat from freeglut/progs/demos/Fractals
388     IF(BUILD_SHARED_LIBS)
389         SET(Frac_target Fractals)
390     ELSE()
391         SET(Frac_target Fractals_static)
392     ENDIF()
393     GET_TARGET_PROPERTY(DEMO_OUTPUT_DIRECTORY ${Frac_target} RUNTIME_OUTPUT_DIRECTORY)
394     ADD_CUSTOM_COMMAND(
395         TARGET ${Frac_target}
396         POST_BUILD
397         COMMAND ${CMAKE_COMMAND} -E copy
398         ${PROJECT_SOURCE_DIR}/progs/demos/Fractals/fractals.dat
399         ${DEMO_OUTPUT_DIRECTORY}/${CMAKE_CFG_INTDIR}
400     )
401 ENDIF()
402
403 # pkg-config support, to install at $(libdir)/pkgconfig
404 # Define static build dependencies
405 IF(WIN32)
406   SET(PC_LIBS_PRIVATE "-lopengl32 -lwinmm -lgdi32 -lm")
407 ELSEIF(FREEGLUT_GLES2)
408   IF(ANDROID)
409     SET(PC_LIBS_PRIVATE "-llog -landroid -lGLESv2 -lEGL -lm")
410   ELSE()
411     SET(PC_LIBS_PRIVATE "-lX11 -lXxf86vm -lXrandr -lGLESv2 -lEGL -lm")
412   ENDIF()
413 ELSEIF(FREEGLUT_GLES1)
414   IF(ANDROID)
415     SET(PC_LIBS_PRIVATE "-llog -landroid -lGLESv1_CM -lEGL -lm")
416   ELSE()
417     SET(PC_LIBS_PRIVATE "-lX11 -lXxf86vm -lXrandr -lGLESv1_CM -lEGL -lm")
418   ENDIF()
419 ELSE()
420   SET(PC_LIBS_PRIVATE "-lX11 -lXxf86vm -lXrandr -lGL -lm")
421 ENDIF()
422 # Client applications need to define FreeGLUT GLES version to
423 # bootstrap headers inclusion in freeglut_std.h:
424 SET(PC_LIBNAME "glut")
425 SET(PC_FILENAME "freeglut.pc")
426 IF(FREEGLUT_GLES2)
427   SET(PC_CFLAGS "-DFREEGLUT_GLES2")
428   SET(PC_LIBNAME "freeglut-gles2")
429   SET(PC_FILENAME "freeglut-gles2.pc")
430 ELSEIF(FREEGLUT_GLES1)
431   SET(PC_CFLAGS "-DFREEGLUT_GLES1")
432   SET(PC_LIBNAME "freeglut-gles1")
433   SET(PC_FILENAME "freeglut-gles1.pc")
434 ENDIF()
435 CONFIGURE_FILE(${CMAKE_SOURCE_DIR}/freeglut.pc.in ${CMAKE_BINARY_DIR}/freeglut.pc @ONLY)
436 INSTALL(FILES ${CMAKE_BINARY_DIR}/freeglut.pc DESTINATION share/pkgconfig/ RENAME ${PC_FILENAME})
437 # TODO: change the library and .pc name when building for GLES,
438 # e.g. -lglut-GLES2