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