add 3 PLY and STL export tests.
[blender.git] / build_files / cmake / macros.cmake
1 # -*- mode: cmake; indent-tabs-mode: t; -*-
2 # $Id$
3
4
5 # foo_bar.spam --> foo_barMySuffix.spam
6 macro(file_suffix
7         file_name_new file_name file_suffix
8         )
9
10         get_filename_component(_file_name_PATH ${file_name} PATH)
11         get_filename_component(_file_name_NAME_WE ${file_name} NAME_WE)
12         get_filename_component(_file_name_EXT ${file_name} EXT)
13         set(${file_name_new} "${_file_name_PATH}/${_file_name_NAME_WE}${file_suffix}${_file_name_EXT}")
14
15         unset(_file_name_PATH)
16         unset(_file_name_NAME_WE)
17         unset(_file_name_EXT)
18 endmacro()
19
20 # usefil for adding debug suffix to library lists:
21 # /somepath/foo.lib --> /somepath/foo_d.lib
22 macro(file_list_suffix
23         fp_list_new fp_list fn_suffix
24         )
25
26         # incase of empty list
27         set(_fp)
28         set(_fp_suffixed)
29
30         set(fp_list_new)
31
32         foreach(_fp ${fp_list})
33                 file_suffix(_fp_suffixed "${_fp}" "${fn_suffix}")
34                 list(APPEND "${fp_list_new}" "${_fp_suffixed}")
35         endforeach()
36
37         unset(_fp)
38         unset(_fp_suffixed)
39
40 endmacro()
41
42
43 macro(target_link_libraries_optimized TARGET LIBS)
44         foreach(_LIB ${LIBS})
45                 target_link_libraries(${TARGET} optimized "${_LIB}")
46         endforeach()
47         unset(_LIB)
48 endmacro()
49
50 macro(target_link_libraries_debug TARGET LIBS)
51         foreach(_LIB ${LIBS})
52                 target_link_libraries(${TARGET} debug "${_LIB}")
53         endforeach()
54         unset(_LIB)
55 endmacro()
56
57 # Nicer makefiles with -I/1/foo/ instead of -I/1/2/3/../../foo/
58 # use it instead of include_directories()
59 macro(blender_include_dirs
60         includes)
61         set(_ALL_INCS "")
62         foreach(_INC ${ARGV})
63                 get_filename_component(_ABS_INC ${_INC} ABSOLUTE)
64                 list(APPEND _ALL_INCS ${_ABS_INC})
65                 # for checking for invalid includes, disable for regular use
66                 ##if(NOT EXISTS "${_ABS_INC}/")
67                 ##      message(FATAL_ERROR "Include not found: ${_ABS_INC}/")
68                 ##endif()
69         endforeach()
70         include_directories(${_ALL_INCS})
71         unset(_INC)
72         unset(_ABS_INC)
73         unset(_ALL_INCS)
74 endmacro()
75
76 macro(blender_include_dirs_sys
77         includes)
78         set(_ALL_INCS "")
79         foreach(_INC ${ARGV})
80                 get_filename_component(_ABS_INC ${_INC} ABSOLUTE)
81                 list(APPEND _ALL_INCS ${_ABS_INC})
82                 ##if(NOT EXISTS "${_ABS_INC}/")
83                 ##      message(FATAL_ERROR "Include not found: ${_ABS_INC}/")
84                 ##endif()
85         endforeach()
86         include_directories(SYSTEM ${_ALL_INCS})
87         unset(_INC)
88         unset(_ABS_INC)
89         unset(_ALL_INCS)
90 endmacro()
91
92 macro(blender_source_group
93         sources)
94
95         # Group by location on disk
96         source_group("Source Files" FILES CMakeLists.txt)
97
98         foreach(_SRC ${sources})
99                 get_filename_component(_SRC_EXT ${_SRC} EXT)
100                 if((${_SRC_EXT} MATCHES ".h") OR (${_SRC_EXT} MATCHES ".hpp"))
101                         source_group("Header Files" FILES ${_SRC})
102                 else()
103                         source_group("Source Files" FILES ${_SRC})
104                 endif()
105         endforeach()
106
107         unset(_SRC)
108         unset(_SRC_EXT)
109 endmacro()
110
111
112 # only MSVC uses SOURCE_GROUP
113 macro(blender_add_lib_nolist
114         name
115         sources
116         includes
117         includes_sys)
118
119         # message(STATUS "Configuring library ${name}")
120
121         # include_directories(${includes})
122         # include_directories(SYSTEM ${includes_sys})
123         blender_include_dirs("${includes}")
124         blender_include_dirs_sys("${includes_sys}")
125
126         add_library(${name} ${sources})
127
128         # works fine without having the includes
129         # listed is helpful for IDE's (QtCreator/MSVC)
130         blender_source_group("${sources}")
131
132 endmacro()
133
134
135 macro(blender_add_lib
136         name
137         sources
138         includes
139         includes_sys)
140
141         blender_add_lib_nolist(${name} "${sources}" "${includes}" "${includes_sys}")
142
143         set_property(GLOBAL APPEND PROPERTY BLENDER_LINK_LIBS ${name})
144 endmacro()
145
146
147 macro(SETUP_LIBDIRS)
148         link_directories(${JPEG_LIBPATH} ${PNG_LIBPATH} ${ZLIB_LIBPATH} ${FREETYPE_LIBPATH})
149
150         if(WITH_PYTHON)  #  AND NOT WITH_PYTHON_MODULE  # WIN32 needs
151                 link_directories(${PYTHON_LIBPATH})
152         endif()
153         if(WITH_INTERNATIONAL)
154                 link_directories(${ICONV_LIBPATH})
155                 link_directories(${GETTEXT_LIBPATH})
156         endif()
157         if(WITH_SDL)
158                 link_directories(${SDL_LIBPATH})
159         endif()
160         if(WITH_CODEC_FFMPEG)
161                 link_directories(${FFMPEG_LIBPATH})
162         endif()
163         if(WITH_IMAGE_OPENEXR)
164                 link_directories(${OPENEXR_LIBPATH})
165         endif()
166         if(WITH_IMAGE_TIFF)
167                 link_directories(${TIFF_LIBPATH})
168         endif()
169         if(WITH_IMAGE_OPENJPEG AND UNIX AND NOT APPLE)
170                 link_directories(${OPENJPEG_LIBPATH})
171         endif()
172         if(WITH_CODEC_QUICKTIME)
173                 link_directories(${QUICKTIME_LIBPATH})
174         endif()
175         if(WITH_OPENAL)
176                 link_directories(${OPENAL_LIBPATH})
177         endif()
178         if(WITH_JACK)
179                 link_directories(${JACK_LIBPATH})
180         endif()
181         if(WITH_CODEC_SNDFILE)
182                 link_directories(${SNDFILE_LIBPATH})
183         endif()
184         if(WITH_FFTW3)
185                 link_directories(${FFTW3_LIBPATH})
186         endif()
187         if(WITH_OPENCOLLADA)
188                 link_directories(${OPENCOLLADA_LIBPATH})
189                 link_directories(${PCRE_LIBPATH})
190                 link_directories(${EXPAT_LIBPATH})
191         endif()
192         if(WITH_MEM_JEMALLOC)
193                 link_directories(${JEMALLOC_LIBPATH})
194         endif()
195
196         if(WIN32 AND NOT UNIX)
197                 link_directories(${PTHREADS_LIBPATH})
198         endif()
199 endmacro()
200
201 macro(setup_liblinks
202         target)
203
204         set(CMAKE_EXE_LINKER_FLAGS "${CMAKE_EXE_LINKER_FLAGS} ${PLATFORM_LINKFLAGS}")
205         set(CMAKE_EXE_LINKER_FLAGS_DEBUG "${CMAKE_EXE_LINKER_FLAGS_DEBUG} ${PLATFORM_LINKFLAGS_DEBUG}")
206
207         target_link_libraries(${target}
208                         ${OPENGL_gl_LIBRARY}
209                         ${OPENGL_glu_LIBRARY}
210                         ${JPEG_LIBRARIES}
211                         ${PNG_LIBRARIES}
212                         ${ZLIB_LIBRARIES}
213                         ${FREETYPE_LIBRARY}
214                         ${PLATFORM_LINKLIBS})
215
216         # since we are using the local libs for python when compiling msvc projects, we need to add _d when compiling debug versions
217         if(WITH_PYTHON)  # AND NOT WITH_PYTHON_MODULE  # WIN32 needs
218                 target_link_libraries(${target} ${PYTHON_LINKFLAGS})
219
220                 if(WIN32 AND NOT UNIX)
221                         file_list_suffix(PYTHON_LIBRARIES_DEBUG "${PYTHON_LIBRARIES}" "_d")
222                         target_link_libraries_debug(${target} "${PYTHON_LIBRARIES_DEBUG}")
223                         target_link_libraries_optimized(${target} "${PYTHON_LIBRARIES}")
224                         unset(PYTHON_LIBRARIES_DEBUG)
225                 else()
226                         target_link_libraries(${target} ${PYTHON_LIBRARIES})
227                 endif()
228         endif()
229
230         if(NOT WITH_BUILTIN_GLEW)
231                 target_link_libraries(${target} ${GLEW_LIBRARY})
232         endif()
233
234         if(WITH_INTERNATIONAL)
235                 target_link_libraries(${target} ${GETTEXT_LIBRARIES})
236
237                 if(WIN32 AND NOT UNIX)
238                         target_link_libraries(${target} ${ICONV_LIBRARIES})
239                 endif()
240         endif()
241
242         if(WITH_OPENAL)
243                 target_link_libraries(${target} ${OPENAL_LIBRARY})
244         endif()
245         if(WITH_FFTW3)
246                 target_link_libraries(${target} ${FFTW3_LIBRARIES})
247         endif()
248         if(WITH_JACK)
249                 target_link_libraries(${target} ${JACK_LIBRARIES})
250         endif()
251         if(WITH_CODEC_SNDFILE)
252                 target_link_libraries(${target} ${SNDFILE_LIBRARIES})
253         endif()
254         if(WITH_SDL)
255                 target_link_libraries(${target} ${SDL_LIBRARY})
256         endif()
257         if(WITH_CODEC_QUICKTIME)
258                 target_link_libraries(${target} ${QUICKTIME_LIBRARIES})
259         endif()
260         if(WITH_IMAGE_TIFF)
261                 target_link_libraries(${target} ${TIFF_LIBRARY})
262         endif()
263         if(WITH_IMAGE_OPENEXR)
264                 if(WIN32 AND NOT UNIX)
265                         file_list_suffix(OPENEXR_LIBRARIES_DEBUG "${OPENEXR_LIBRARIES}" "_d")
266                         target_link_libraries_debug(${target} "${OPENEXR_LIBRARIES_DEBUG}")
267                         target_link_libraries_optimized(${target} "${OPENEXR_LIBRARIES}")
268                         unset(OPENEXR_LIBRARIES_DEBUG)
269                 else()
270                         target_link_libraries(${target} ${OPENEXR_LIBRARIES})
271                 endif()
272         endif()
273         if(WITH_IMAGE_OPENJPEG AND UNIX AND NOT APPLE)
274                 target_link_libraries(${target} ${OPENJPEG_LIBRARIES})
275         endif()
276         if(WITH_CODEC_FFMPEG)
277
278                 # Strange!, without this ffmpeg gives linking errors (on linux)
279                 # even though its linked above
280                 target_link_libraries(${target} ${OPENGL_glu_LIBRARY})
281
282                 target_link_libraries(${target} ${FFMPEG_LIBRARIES})
283         endif()
284         if(WITH_OPENCOLLADA)
285                 if(WIN32 AND NOT UNIX)
286                         file_list_suffix(OPENCOLLADA_LIBRARIES_DEBUG "${OPENCOLLADA_LIBRARIES}" "_d")
287                         target_link_libraries_debug(${target} "${OPENCOLLADA_LIBRARIES_DEBUG}")
288                         target_link_libraries_optimized(${target} "${OPENCOLLADA_LIBRARIES}")
289                         unset(OPENCOLLADA_LIBRARIES_DEBUG)
290
291                         file_list_suffix(PCRE_LIBRARIES_DEBUG "${PCRE_LIBRARIES}" "_d")
292                         target_link_libraries_debug(${target} "${PCRE_LIBRARIES_DEBUG}")
293                         target_link_libraries_optimized(${target} "${PCRE_LIBRARIES}")
294                         unset(PCRE_LIBRARIES_DEBUG)
295
296                         if(EXPAT_LIB)
297                                 file_list_suffix(EXPAT_LIB_DEBUG "${EXPAT_LIB}" "_d")
298                                 target_link_libraries_debug(${target} "${EXPAT_LIB_DEBUG}")
299                                 target_link_libraries_optimized(${target} "${EXPAT_LIB}")
300                                 unset(EXPAT_LIB_DEBUG)
301                         endif()
302                 else()
303                         target_link_libraries(${target}
304                                         ${OPENCOLLADA_LIBRARIES}
305                                         ${PCRE_LIBRARIES}
306                                         ${XML2_LIBRARIES}
307                                         ${EXPAT_LIB})
308                 endif()
309         endif()
310         if(WITH_MEM_JEMALLOC)
311                 target_link_libraries(${target} ${JEMALLOC_LIBRARIES})
312         endif()
313         if(WITH_INPUT_NDOF)
314                 target_link_libraries(${target} ${NDOF_LIBRARIES})
315         endif()
316
317         if(WIN32 AND NOT UNIX)
318                 target_link_libraries(${target} ${PTHREADS_LIBRARIES})
319         endif()
320 endmacro()
321
322 macro(TEST_SSE_SUPPORT
323         _sse_flags
324         _sse2_flags)
325
326         include(CheckCSourceRuns)
327
328         # message(STATUS "Detecting SSE support")
329         if(CMAKE_COMPILER_IS_GNUCC OR (CMAKE_C_COMPILER_ID MATCHES "Clang"))
330                 set(${_sse_flags} "-msse")
331                 set(${_sse2_flags} "-msse2")
332         elseif(MSVC)
333                 set(${_sse_flags} "/arch:SSE")
334                 set(${_sse2_flags} "/arch:SSE2")
335         elseif(CMAKE_C_COMPILER_ID MATCHES "Intel")
336                 set(${_sse_flags} "")  # icc defaults to -msse
337                 set(${_sse2_flags} "-msse2")
338         else()
339                 message(WARNING "SSE flags for this compiler: '${CMAKE_C_COMPILER_ID}' not known")
340                 set(${_sse_flags})
341                 set(${_sse2_flags})
342         endif()
343
344         set(CMAKE_REQUIRED_FLAGS "${${_sse_flags}} ${${_sse2_flags}}")
345
346         if(NOT DEFINED SUPPORT_SSE_BUILD)
347                 # result cached
348                 check_c_source_runs("
349                         #include <xmmintrin.h>
350                         int main(void) { __m128 v = _mm_setzero_ps(); return 0; }"
351                 SUPPORT_SSE_BUILD)
352
353                 if(SUPPORT_SSE_BUILD)
354                         message(STATUS "SSE Support: detected.")
355                 else()
356                         message(STATUS "SSE Support: missing.")
357                 endif()
358         endif()
359
360         if(NOT DEFINED SUPPORT_SSE2_BUILD)
361                 # result cached
362                 check_c_source_runs("
363                         #include <emmintrin.h>
364                         int main(void) { __m128d v = _mm_setzero_pd(); return 0; }"
365                 SUPPORT_SSE2_BUILD)
366
367                 if(SUPPORT_SSE2_BUILD)
368                         message(STATUS "SSE2 Support: detected.")
369                 else()
370                         message(STATUS "SSE2 Support: missing.")
371                 endif()
372         endif()
373
374         unset(CMAKE_REQUIRED_FLAGS)
375 endmacro()
376
377 # when we have warnings as errors applied globally this
378 # needs to be removed for some external libs which we dont maintain.
379
380 # utility macro
381 macro(remove_flag
382         flag)
383
384         string(REGEX REPLACE ${flag} "" CMAKE_C_FLAGS "${CMAKE_C_FLAGS}")
385         string(REGEX REPLACE ${flag} "" CMAKE_C_FLAGS_DEBUG "${CMAKE_C_FLAGS_DEBUG}")
386         string(REGEX REPLACE ${flag} "" CMAKE_C_FLAGS_RELEASE "${CMAKE_C_FLAGS_RELEASE}")
387         string(REGEX REPLACE ${flag} "" CMAKE_C_FLAGS_MINSIZEREL "${CMAKE_C_FLAGS_MINSIZEREL}")
388         string(REGEX REPLACE ${flag} "" CMAKE_C_FLAGS_RELWITHDEBINFO "${CMAKE_C_FLAGS_RELWITHDEBINFO}")
389
390         string(REGEX REPLACE ${flag} "" CMAKE_CXX_FLAGS "${CMAKE_CXX_FLAGS}")
391         string(REGEX REPLACE ${flag} "" CMAKE_CXX_FLAGS_DEBUG "${CMAKE_CXX_FLAGS_DEBUG}")
392         string(REGEX REPLACE ${flag} "" CMAKE_CXX_FLAGS_RELEASE "${CMAKE_CXX_FLAGS_RELEASE}")
393         string(REGEX REPLACE ${flag} "" CMAKE_CXX_FLAGS_MINSIZEREL "${CMAKE_CXX_FLAGS_MINSIZEREL}")
394         string(REGEX REPLACE ${flag} "" CMAKE_CXX_FLAGS_RELWITHDEBINFO "${CMAKE_CXX_FLAGS_RELWITHDEBINFO}")
395
396 endmacro()
397
398 macro(remove_strict_flags)
399
400         if(CMAKE_COMPILER_IS_GNUCC)
401                 remove_flag("-Wstrict-prototypes")
402                 remove_flag("-Wunused-parameter")
403                 remove_flag("-Wwrite-strings")
404                 remove_flag("-Wundef")
405                 remove_flag("-Wshadow")
406                 remove_flag("-Werror=[^ ]+")
407                 remove_flag("-Werror")
408         endif()
409
410         if(MSVC)
411                 # TODO
412         endif()
413
414 endmacro()
415
416 macro(ADD_CHECK_C_COMPILER_FLAG
417         _CFLAGS
418         _CACHE_VAR
419         _FLAG)
420
421         include(CheckCCompilerFlag)
422
423         CHECK_C_COMPILER_FLAG("${_FLAG}" "${_CACHE_VAR}")
424         if(${_CACHE_VAR})
425                 # message(STATUS "Using CFLAG: ${_FLAG}")
426                 set(${_CFLAGS} "${${_CFLAGS}} ${_FLAG}")
427         else()
428                 message(STATUS "Unsupported CFLAG: ${_FLAG}")
429         endif()
430 endmacro()
431
432 macro(ADD_CHECK_CXX_COMPILER_FLAG
433         _CXXFLAGS
434         _CACHE_VAR
435         _FLAG)
436
437         include(CheckCXXCompilerFlag)
438
439         CHECK_CXX_COMPILER_FLAG("${_FLAG}" "${_CACHE_VAR}")
440         if(${_CACHE_VAR})
441                 # message(STATUS "Using CXXFLAG: ${_FLAG}")
442                 set(${_CXXFLAGS} "${${_CXXFLAGS}} ${_FLAG}")
443         else()
444                 message(STATUS "Unsupported CXXFLAG: ${_FLAG}")
445         endif()
446 endmacro()
447
448 macro(get_blender_version)
449         # So cmake depends on BKE_blender.h, beware of inf-loops!
450         CONFIGURE_FILE(${CMAKE_SOURCE_DIR}/source/blender/blenkernel/BKE_blender.h ${CMAKE_BINARY_DIR}/source/blender/blenkernel/BKE_blender.h.done)
451
452         file(STRINGS ${CMAKE_SOURCE_DIR}/source/blender/blenkernel/BKE_blender.h _contents REGEX "^#define[ \t]+BLENDER_.*$")
453
454         string(REGEX REPLACE ".*#define[ \t]+BLENDER_VERSION[ \t]+([0-9]+).*" "\\1" _out_version "${_contents}")
455         string(REGEX REPLACE ".*#define[ \t]+BLENDER_SUBVERSION[ \t]+([0-9]+).*" "\\1" _out_subversion "${_contents}")
456         string(REGEX REPLACE ".*#define[ \t]+BLENDER_VERSION_CHAR[ \t]+([a-z]+).*" "\\1" _out_version_char "${_contents}")
457         string(REGEX REPLACE ".*#define[ \t]+BLENDER_VERSION_CYCLE[ \t]+([a-z]+).*" "\\1" _out_version_cycle "${_contents}")
458
459         if(NOT ${_out_version} MATCHES "[0-9]+")
460                 message(FATAL_ERROR "Version parsing failed for BLENDER_VERSION")
461         endif()
462
463         if(NOT ${_out_subversion} MATCHES "[0-9]+")
464                 message(FATAL_ERROR "Version parsing failed for BLENDER_SUBVERSION")
465         endif()
466
467         # clumsy regex, only single char are ok but it could be unset
468
469         string(LENGTH "${_out_version_char}" _out_version_char_len)
470         if(NOT _out_version_char_len EQUAL 1)
471                 set(_out_version_char "")
472         elseif(NOT ${_out_version_char} MATCHES "[a-z]+")
473                 message(FATAL_ERROR "Version parsing failed for BLENDER_VERSION_CHAR")
474         endif()
475
476         if(NOT ${_out_version_cycle} MATCHES "[a-z]+")
477                 message(FATAL_ERROR "Version parsing failed for BLENDER_VERSION_CYCLE")
478         endif()
479
480         math(EXPR BLENDER_VERSION_MAJOR "${_out_version} / 100")
481         math(EXPR BLENDER_VERSION_MINOR "${_out_version} % 100")
482         set(BLENDER_VERSION "${BLENDER_VERSION_MAJOR}.${BLENDER_VERSION_MINOR}")
483
484         set(BLENDER_SUBVERSION ${_out_subversion})
485         set(BLENDER_VERSION_CHAR ${_out_version_char})
486         set(BLENDER_VERSION_CYCLE ${_out_version_cycle})
487
488         # for packaging, alpha to numbers
489         string(COMPARE EQUAL "${BLENDER_VERSION_CHAR}" "" _out_version_char_empty)
490         if(${_out_version_char_empty})
491                 set(BLENDER_VERSION_CHAR_INDEX "0")
492         else()
493                 set(_char_ls a b c d e f g h i j k l m n o p q r s t u v w x y z)
494                 list(FIND _char_ls ${BLENDER_VERSION_CHAR} _out_version_char_index)
495                 math(EXPR BLENDER_VERSION_CHAR_INDEX "${_out_version_char_index} + 1")
496                 unset(_char_ls)
497                 unset(_out_version_char_index)
498         endif()
499
500         unset(_out_subversion)
501         unset(_out_version_char)
502         unset(_out_version_char_empty)
503         unset(_out_version_cycle)
504
505         # message(STATUS "Version (Internal): ${BLENDER_VERSION}.${BLENDER_SUBVERSION}, Version (external): ${BLENDER_VERSION}${BLENDER_VERSION_CHAR}-${BLENDER_VERSION_CYCLE}")
506 endmacro()
507
508
509 # hacks to override initial project settings
510 # these macros must be called directly before/after project(Blender)
511 macro(blender_project_hack_pre)
512         # ----------------
513         # MINGW HACK START
514         # ignore system set flag, use our own
515         # must be before project(...)
516         # if the user wants to add their own its ok after first run.
517         if(DEFINED CMAKE_C_STANDARD_LIBRARIES)
518                 set(_reset_standard_libraries OFF)
519         else()
520                 set(_reset_standard_libraries ON)
521         endif()
522
523         # ------------------
524         # GCC -O3 HACK START
525         # needed because O3 can cause problems but
526         # allow the builder to set O3 manually after.
527         if(DEFINED CMAKE_C_FLAGS_RELEASE)
528                 set(_reset_standard_cflags_rel OFF)
529         else()
530                 set(_reset_standard_cflags_rel ON)
531         endif()
532         if(DEFINED CMAKE_CXX_FLAGS_RELEASE)
533                 set(_reset_standard_cxxflags_rel OFF)
534         else()
535                 set(_reset_standard_cxxflags_rel ON)
536         endif()
537 endmacro()
538
539
540 macro(blender_project_hack_post)
541         # --------------
542         # MINGW HACK END
543         if (_reset_standard_libraries)
544                 # Must come after project(...)
545                 #
546                 # MINGW workaround for -ladvapi32 being included which surprisingly causes
547                 # string formatting of floats, eg: printf("%.*f", 3, value). to crash blender
548                 # with a meaningless stack trace. by overriding this flag we ensure we only
549                 # have libs we define and that cmake & scons builds match.
550                 set(CMAKE_C_STANDARD_LIBRARIES "" CACHE STRING "" FORCE)
551                 set(CMAKE_CXX_STANDARD_LIBRARIES "" CACHE STRING "" FORCE)
552                 mark_as_advanced(
553                         CMAKE_C_STANDARD_LIBRARIES
554                         CMAKE_CXX_STANDARD_LIBRARIES
555                 )
556         endif()
557         unset(_reset_standard_libraries)
558
559
560         # ----------------
561         # GCC -O3 HACK END
562         if(_reset_standard_cflags_rel)
563                 string(REGEX REPLACE "-O3" "-O2" CMAKE_C_FLAGS_RELEASE "${CMAKE_C_FLAGS_RELEASE}")
564                 set(CMAKE_C_FLAGS_RELEASE "${CMAKE_C_FLAGS_RELEASE}" CACHE STRING "" FORCE)
565                 mark_as_advanced(CMAKE_C_FLAGS_RELEASE)
566         endif()
567
568         if(_reset_standard_cxxflags_rel)
569                 string(REGEX REPLACE "-O3" "-O2" CMAKE_CXX_FLAGS_RELEASE "${CMAKE_CXX_FLAGS_RELEASE}")
570                 set(CMAKE_CXX_FLAGS_RELEASE "${CMAKE_CXX_FLAGS_RELEASE}" CACHE STRING "" FORCE)
571                 mark_as_advanced(CMAKE_CXX_FLAGS_RELEASE)
572         endif()
573
574         unset(_reset_standard_cflags_rel)
575         unset(_reset_standard_cxxflags_rel)
576
577         # ------------------------------------------------------------------
578         # workaround for omission in cmake 2.8.4's GNU.cmake, fixed in 2.8.5
579         if(CMAKE_COMPILER_IS_GNUCC)
580                 if(NOT DARWIN)
581                         set(CMAKE_INCLUDE_SYSTEM_FLAG_C "-isystem ")
582                 endif()
583         endif()
584
585 endmacro()