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[opencv.git] / opencv / CMakeLists.txt
1 # ----------------------------------------------------------------------------
2 #  Root CMake file for OpenCV
3 #
4 #    From the off-tree build directory, invoke:
5 #      $ cmake <PATH_TO_OPENCV_ROOT>
6 #
7 #
8 #   - OCT-2008: Initial version <joseluisblancoc@gmail.com>
9 #
10 # ----------------------------------------------------------------------------
11
12 set(CMAKE_ALLOW_LOOSE_LOOP_CONSTRUCTS true)
13
14 # it _must_ go before PROJECT(OpenCV) in order to work
15 if (NOT CMAKE_INSTALL_PREFIX)
16     if (WIN32)
17         set(CMAKE_INSTALL_PREFIX ${CMAKE_BINARY_DIR} CACHE INTERNAL "" FORCE)
18     elseif()
19         set(CMAKE_INSTALL_PREFIX "/usr" CACHE INTERNAL "" FORCE)
20     endif()
21 endif()
22
23 set(CMAKE_CONFIGURATION_TYPES "Debug;Release" CACHE STRING "Configs" FORCE)
24 set(CMAKE_C_FLAGS_MINSIZEREL "" CACHE INTERNAL "" FORCE)
25 set(CMAKE_C_FLAGS_RELWITHDEBINFO "" CACHE INTERNAL "" FORCE)
26 set(CMAKE_CXX_FLAGS_MINSIZEREL "" CACHE INTERNAL "" FORCE)
27 set(CMAKE_CXX_FLAGS_RELWITHDEBINFO "" CACHE INTERNAL "" FORCE)
28 set(CMAKE_EXE_LINKER_FLAGS_MINSIZEREL "" CACHE INTERNAL "" FORCE)
29 set(CMAKE_EXE_LINKER_FLAGS_RELWITHDEBINFO "" CACHE INTERNAL "" FORCE)
30 set(CMAKE_MODULE_LINKER_FLAGS_MINSIZEREL "" CACHE INTERNAL "" FORCE)
31 set(CMAKE_MODULE_LINKER_FLAGS_RELWITHDEBINFO "" CACHE INTERNAL "" FORCE)
32 set(CMAKE_SHARED_LINKER_FLAGS_MINSIZEREL "" CACHE INTERNAL "" FORCE)
33 set(CMAKE_SHARED_LINKER_FLAGS_RELWITHDEBINFO "" CACHE INTERNAL "" FORCE)
34
35 project(OpenCV)
36
37 cmake_minimum_required(VERSION 2.4)
38
39 if(MSVC)
40     set(CMAKE_USE_RELATIVE_PATHS ON CACHE INTERNAL "" FORCE)
41 endif()
42
43 # --------------------------------------------------------------
44 # Indicate CMake 2.7 and above that we don't want to mix relative
45 #  and absolute paths in linker lib lists.
46 # Run "cmake --help-policy CMP0003" for more information.
47 # --------------------------------------------------------------
48 if(COMMAND cmake_policy)
49     cmake_policy(SET CMP0003 NEW)
50 endif()
51
52 # ----------------------------------------------------------------------------
53 #  Current version number:
54 # ----------------------------------------------------------------------------
55 set(OPENCV_VERSION "1.1.0")
56
57 string(REGEX MATCHALL "[0-9]" OPENCV_VERSION_PARTS "${OPENCV_VERSION}")
58
59 list(GET OPENCV_VERSION_PARTS 0 OPENCV_VERSION_MAJOR)
60 list(GET OPENCV_VERSION_PARTS 1 OPENCV_VERSION_MINOR)
61 list(GET OPENCV_VERSION_PARTS 2 OPENCV_VERSION_PATCH)
62
63 set(OPENCV_SOVERSION "${OPENCV_VERSION_MAJOR}.${OPENCV_VERSION_MINOR}")
64
65 if(WIN32)
66         # Postfix of DLLs:
67         set(OPENCV_DLLVERSION "${OPENCV_VERSION_MAJOR}${OPENCV_VERSION_MINOR}${OPENCV_VERSION_PATCH}")
68         set(OPENCV_DEBUG_POSTFIX d)
69 else()
70         # Postfix of so's:
71         #set(OPENCV_DLLVERSION "${OPENCV_VERSION_MAJOR}${OPENCV_VERSION_MINOR}${OPENCV_VERSION_PATCH}")
72         set(OPENCV_DLLVERSION "")
73         set(OPENCV_DEBUG_POSTFIX)
74 endif()
75
76
77 # ----------------------------------------------------------------------------
78 #  Variables for cvconfig.h.cmake
79 # ----------------------------------------------------------------------------
80 set(PACKAGE "opencv")
81 set(PACKAGE_BUGREPORT "opencvlibrary-devel@lists.sourceforge.net")
82 set(PACKAGE_NAME "opencv")
83 set(PACKAGE_STRING "${PACKAGE} ${OPENCV_VERSION}")
84 set(PACKAGE_TARNAME "${PACKAGE}")
85 set(PACKAGE_VERSION "${OPENCV_VERSION}")
86
87 # ----------------------------------------------------------------------------
88 #  Autodetect if we are in a SVN repository
89 # ----------------------------------------------------------------------------
90 find_program(SVNVERSION_PATH svnversion)
91 mark_as_advanced(force SVNVERSION_PATH)
92 if(SVNVERSION_PATH)
93     message(STATUS "Extracting svn version, please wait...")
94     execute_process(COMMAND ${SVNVERSION_PATH} -n ${CMAKE_SOURCE_DIR} OUTPUT_VARIABLE SVNVERSION_RESULT)
95
96     if(SVNVERSION_RESULT MATCHES "exported")
97        # This is NOT a svn repository:
98        set(OPENCV_SVNVERSION "")
99     else()
100         set(OPENCV_SVNVERSION " svn:${SVNVERSION_RESULT}")
101     endif()
102
103     message(STATUS "SVNVERSION: ${OPENCV_SVNVERSION}")
104 else()
105     # We don't have svnversion:
106     set(OPENCV_SVNVERSION "")
107 endif()
108
109 # ----------------------------------------------------------------------------
110 # Detect GNU version:
111 # ----------------------------------------------------------------------------
112 if(CMAKE_COMPILER_IS_GNUCXX)
113     execute_process(COMMAND ${CMAKE_CXX_COMPILER} --version
114                   OUTPUT_VARIABLE CMAKE_OPENCV_GCC_VERSION_FULL
115                   OUTPUT_STRIP_TRAILING_WHITESPACE)
116
117     # Typical output in CMAKE_OPENCV_GCC_VERSION_FULL: "c+//0 (whatever) 4.2.3 (...)"
118     #  Look for the version number
119     string(REGEX MATCH "[0-9].[0-9].[0-9]" CMAKE_GCC_REGEX_VERSION "${CMAKE_OPENCV_GCC_VERSION_FULL}")
120
121     # Split the three parts:
122     string(REGEX MATCHALL "[0-9]" CMAKE_OPENCV_GCC_VERSIONS "${CMAKE_GCC_REGEX_VERSION}")
123
124     list(GET CMAKE_OPENCV_GCC_VERSIONS 0 CMAKE_OPENCV_GCC_VERSION_MAJOR)
125     list(GET CMAKE_OPENCV_GCC_VERSIONS 1 CMAKE_OPENCV_GCC_VERSION_MINOR)
126
127     set(CMAKE_OPENCV_GCC_VERSION ${CMAKE_OPENCV_GCC_VERSION_MAJOR}${CMAKE_OPENCV_GCC_VERSION_MINOR})
128     message(STATUS "Detected version of GNU GCC: ${CMAKE_OPENCV_GCC_VERSION}")
129 endif()
130
131 # ----------------------------------------------------------------------------
132 #               CHECK FOR SYSTEM LIBRARIES, OPTIONS, ETC..
133 # ----------------------------------------------------------------------------
134
135 # Build/install (or not) some apps:
136 # ===================================================
137 set(BUILD_EXAMPLES OFF CACHE BOOL "Build all examples")
138 set(INSTALL_C_EXAMPLES OFF CACHE BOOL "Install C examples")
139 set(INSTALL_PYTHON_EXAMPLES OFF CACHE BOOL "Install Python examples")
140 set(INSTALL_OCTAVE_EXAMPLES OFF CACHE BOOL "Install Octave examples")
141
142 # Build tests:
143 # ===================================================
144 set(BUILD_TESTS ON CACHE BOOL "Build tests")
145
146 # Build 3rdparty libraries under unix
147 # ===================================================
148 if(WIN32)
149         set(OPENCV_BUILD_3RDPARTY_LIBS TRUE  CACHE BOOL "Build 3rd party libraries")
150 else()
151         set(OPENCV_BUILD_3RDPARTY_LIBS FALSE CACHE BOOL "Build 3rd party libraries")
152 endif()
153
154 if(UNIX)
155     include(OpenCVFindPkgConfig.cmake OPTIONAL)
156     include(CheckFunctionExists)
157     include(CheckIncludeFile)
158 endif()
159
160 set(OPENCV_ENABLE_OPENMP OFF CACHE BOOL "")
161
162 if(CMAKE_COMPILER_IS_GNUCXX)
163     set(OPENCV_ENABLE_PROFILING OFF CACHE BOOL "Enable profiling in the GCC compiler (Add flags: -g -pg)")
164     set(OPENCV_USE_OMIT_FRAME_POINTER ON CACHE BOOL "Enable -fomit-frame-pointer for GCC")
165     if(${CMAKE_SYSTEM_PROCESSOR} MATCHES arm*)
166         # We can use only -O2 because the -O3 causes gcc crash
167         set(OPENCV_USE_O2 ON CACHE BOOL "Enable -O2 for GCC")
168         set(OPENCV_USE_FAST_MATH ON CACHE BOOL "Enable -ffast-math for GCC")
169     endif()
170     if(${CMAKE_SYSTEM_PROCESSOR} MATCHES amd64*)
171         set(OPENCV_USE_O3 ON CACHE BOOL "Enable -O3 for GCC")
172         set(OPENCV_USE_FAST_MATH ON CACHE BOOL "Enable -ffast-math for GCC")
173         set(OPENCV_USE_MMX ON CACHE BOOL "Enable MMX for GCC")
174         set(OPENCV_USE_SSE ON CACHE BOOL "Enable SSE for GCC")
175         set(OPENCV_USE_SSE2 ON CACHE BOOL "Enable SSE2 for GCC")
176         set(OPENCV_USE_SSE3 ON CACHE BOOL "Enable SSE3 for GCC")
177     endif()
178     if(${CMAKE_SYSTEM_PROCESSOR} MATCHES x86_64*)
179         set(OPENCV_USE_O3 ON CACHE BOOL "Enable -O3 for GCC")
180         set(OPENCV_USE_FAST_MATH ON CACHE BOOL "Enable -ffast-math for GCC")
181         set(OPENCV_USE_MMX ON CACHE BOOL "Enable MMX for GCC")
182         set(OPENCV_USE_SSE ON CACHE BOOL "Enable SSE for GCC")
183         set(OPENCV_USE_SSE2 ON CACHE BOOL "Enable SSE2 for GCC")
184         set(OPENCV_USE_SSE3 ON CACHE BOOL "Enable SSE3 for GCC")
185     endif()
186     if(${CMAKE_SYSTEM_PROCESSOR} MATCHES powerpc*)
187         set(OPENCV_USE_O3 ON CACHE BOOL "Enable -O3 for GCC")
188         set(OPENCV_USE_POWERPC ON CACHE BOOL "Enable PowerPC for GCC")
189     endif ()
190     if(${CMAKE_SYSTEM_PROCESSOR} MATCHES i686*)
191         set(OPENCV_USE_O3 ON CACHE BOOL "Enable -O3 for GCC")
192         set(OPENCV_USE_FAST_MATH ON CACHE BOOL "Enable -ffast-math for GCC")
193         set(OPENCV_USE_MMX ON CACHE BOOL "Enable MMX for GCC")
194         set(OPENCV_USE_SSE ON CACHE BOOL "Enable SSE for GCC")
195         set(OPENCV_USE_SSE ON CACHE BOOL "Enable SSE2 for GCC")
196     endif ()
197     if(${CMAKE_SYSTEM_PROCESSOR} MATCHES x86)
198         set(OPENCV_USE_O3 ON CACHE BOOL "Enable -O3 for GCC")
199         set(OPENCV_USE_FAST_MATH ON CACHE BOOL "Enable -ffast-math for GCC")
200         set(OPENCV_USE_MMX ON CACHE BOOL "Enable MMX for GCC")
201         set(OPENCV_USE_SSE ON CACHE BOOL "Enable SSE for GCC")
202         set(OPENCV_USE_SSE ON CACHE BOOL "Enable SSE2 for GCC")
203     endif ()
204 endif()
205
206 # ===================================================
207 # Macros that checks if module have been installed.
208 # After it adds module to build and define
209 # constants passed as second arg
210 # ===================================================
211
212 macro(CHECK_MODULE module_name define)
213     set(${define} 0)
214     if(PKG_CONFIG_FOUND)
215         set(ALIAS               ALIASOF_${module_name})
216         set(ALIAS_FOUND                 ${ALIAS}_FOUND)
217         set(ALIAS_INCLUDE_DIRS   ${ALIAS}_INCLUDE_DIRS)
218         set(ALIAS_LIBRARY_DIRS   ${ALIAS}_LIBRARY_DIRS)
219         set(ALIAS_LIBRARIES         ${ALIAS}_LIBRARIES)
220
221         PKG_CHECK_MODULES(${ALIAS} ${module_name})
222
223         if (${ALIAS_FOUND})
224             set(${define} 1)
225             foreach(P "${ALIAS_INCLUDE_DIRS}")
226                 list(APPEND HIGHGUI_INCLUDE_DIRS ${${P}})
227             endforeach()
228
229             foreach(P "${ALIAS_LIBRARY_DIRS}")
230                 if (${${P}})
231                     list(APPEND HIGHGUI_LIBRARY_DIRS ${${P}})
232                 endif()
233             endforeach()
234
235             list(APPEND HIGHGUI_LIBRARIES ${${ALIAS_LIBRARIES}})
236         endif()
237     endif()
238 endmacro()
239
240 if(UNIX)
241     if(NOT APPLE)
242         CHECK_MODULE(gtk+-2.0 HAVE_GTK)
243         CHECK_MODULE(gthread-2.0 HAVE_GTHREAD)
244         CHECK_MODULE(gstreamer-base-0.10 HAVE_GSTREAMER)
245     endif()
246
247     CHECK_MODULE(libunicap HAVE_UNICAP_)
248     CHECK_MODULE(libucil HAVE_UNICAP_UCIL)
249     if(HAVE_UNICAP_ AND HAVE_UNICAP_UCIL)
250         set(HAVE_UNICAP 1)
251     endif()
252
253     CHECK_MODULE(libavcodec HAVE_FFMPEG_CODEC)
254     CHECK_MODULE(libavformat HAVE_FFMPEG_FORMAT)
255     CHECK_MODULE(libavutil HAVE_FFMPEG_UTIL)
256     CHECK_MODULE(libswscale HAVE_FFMPEG_SWSCALE)
257     CHECK_INCLUDE_FILE(libavformat/avformat.h HAVE_GENTOO_FFMPEG)
258     if(HAVE_FFMPEG_CODEC AND HAVE_FFMPEG_FORMAT AND HAVE_FFMPEG_UTIL)
259         set(HAVE_FFMPEG 1)
260     endif()
261
262     CHECK_MODULE(libdc1394-2 HAVE_DC1394_2)
263     if(NOT HAVE_DC1394_2)
264         CHECK_MODULE(libdc1394 HAVE_DC1394)
265     endif()
266
267     if(NOT APPLE)
268         CHECK_INCLUDE_FILE(alloca.h HAVE_ALLOCA_H)
269         CHECK_FUNCTION_EXISTS(alloca HAVE_ALLOCA)
270         CHECK_INCLUDE_FILE(unistd.h HAVE_UNISTD_H)
271         CHECK_INCLUDE_FILE(pthread.h HAVE_LIBPTHREAD)
272
273         CHECK_MODULE(libxine HAVE_XINE)
274                 CHECK_MODULE(libv4l1 HAVE_LIBV4L)
275         CHECK_INCLUDE_FILE(linux/videodev.h HAVE_CAMV4L)
276         CHECK_INCLUDE_FILE(linux/videodev2.h HAVE_CAMV4L2)
277
278                 if(NOT OPENCV_BUILD_3RDPARTY_LIBS)
279                         include(FindPNG)
280                         if(PNG_FOUND)
281                                 CHECK_INCLUDE_FILE(${PNG_PNG_INCLUDE_DIR}/png.h HAVE_PNG_H)
282                                 CHECK_INCLUDE_FILE(${PNG_PNG_INCLUDE_DIR}/libpng/png.h HAVE_LIBPNG_PNG_H)
283                         endif()
284                         include(FindJPEG)
285                         include(FindTIFF)
286                         include(FindJasper)
287                 endif()
288
289         set(OPENCV_LINKER_LIBS dl m pthread rt)
290     else()
291         add_definitions(-DHAVE_ALLOCA -DHAVE_ALLOCA_H -DHAVE_LIBPTHREAD -DHAVE_UNISTD_H)
292     endif()
293 endif()
294
295 set(BUILD_PYTHON_SUPPORT OFF CACHE BOOL "Build with Python support")
296 set(BUILD_OCTAVE_SUPPORT OFF CACHE BOOL "Build with Octave support")
297
298 find_package(SWIG)
299 if(SWIG_FOUND)
300
301     find_package(PythonInterp)
302     find_package(PythonLibs)
303     
304     # cmake 2.4 (at least on Ubuntu 8.04 (hardy)) don't define PYTHONLIBS_FOUND
305     if(NOT PYTHONLIBS_FOUND AND PYTHON_INCLUDE_PATH)
306         set(PYTHONLIBS_FOUND ON)
307     endif(NOT PYTHONLIBS_FOUND AND PYTHON_INCLUDE_PATH)
308     
309     # Build with python if installed:
310     # ===================================================
311     if(PYTHONLIBS_FOUND AND BUILD_PYTHON_SUPPORT)
312         execute_process(COMMAND ${PYTHON_EXECUTABLE} --version
313                   ERROR_VARIABLE PYTHON_VERSION_FULL
314                   OUTPUT_STRIP_TRAILING_WHITESPACE)
315     
316         string(REGEX MATCH "[0-9].[0-9]" PYTHON_VERSION_MAJOR_MINOR "${PYTHON_VERSION_FULL}")
317         if(UNIX)
318             set(PYTHON_PLUGIN_INSTALL_PATH lib/python${PYTHON_VERSION_MAJOR_MINOR}/site-packages/opencv)
319         endif()
320         if(WIN32)
321             get_filename_component(PYTHON_PATH "[HKEY_LOCAL_MACHINE\\SOFTWARE\\Python\\PythonCore\\${PYTHON_VERSION_MAJOR_MINOR}\\InstallPath]" ABSOLUTE CACHE)
322             set(PYTHON_PLUGIN_INSTALL_PATH "${PYTHON_PATH}/Lib/site-packages/opencv")
323         endif()
324     endif()
325
326 endif()
327
328 if(WIN32)
329
330 set(IPP_FOUND)
331 foreach(v "6.1" "6.0" "5.3" "5.2" "5.1")
332     if(NOT IPP_FOUND)
333         find_path(IPP_PATH "ippi-${v}.dll"
334             PATHS ${CMAKE_PROGRAM_PATH} ${CMAKE_SYSTEM_PROGRAM_PATH}
335             DOC "The path to IPP DLLs")
336         if(IPP_PATH)
337             file(GLOB IPP_HDRS "${IPP_PATH}/../include")
338             if(IPP_HDRS)
339                 set(IPP_FOUND TRUE)
340             endif()
341         endif()
342     endif()
343 endforeach()
344
345 message(STATUS "IPP detected: ${IPP_FOUND}")
346 set(USE_IPP ${IPP_FOUND} CACHE BOOL "Use IPP when available")
347
348 if(IPP_FOUND AND USE_IPP)
349     add_definitions(-DHAVE_IPP)
350     include_directories("${IPP_PATH}/../include")
351     link_directories("${IPP_PATH}/../lib")
352     set(IPP_LIBS ippsmerged.lib ippsemerged.lib ippimerged.lib ippiemerged.lib
353         ippvmmerged.lib ippvmemerged.lib ippccmerged.lib ippccemerged.lib
354         ippcvmerged.lib ippcvemerged.lib ippcorel.lib)
355 endif()
356
357 endif()
358
359 # ----------------------------------------------------------------------------
360 #                               UPDATE CONFIG FILES & SCRIPTS:
361 #
362 #  CONFIGURE_FILE(InputFile OutputFile [COPYONLY] [ESCAPE_QUOTES] [@ONLY])
363 # If @ONLY is specified, only variables of the form @VAR@ will be
364 #  replaces and ${VAR} will be ignored.
365 #
366 #  A directory will be created for each platform so the "cvconfig.h" file is
367 #   not overwritten if cmake generates code in the same path.
368 # ----------------------------------------------------------------------------
369 add_definitions(-DHAVE_CONFIG_H)
370
371 set(OPENCV_CONFIG_FILE_INCLUDE_DIR "${CMAKE_BINARY_DIR}/" CACHE PATH "Where to create the platform-dependant cvconfig.h")
372
373 message(STATUS "Parsing 'cvconfig.h.cmake'")
374 configure_file("${CMAKE_SOURCE_DIR}/cvconfig.h.cmake" "${OPENCV_CONFIG_FILE_INCLUDE_DIR}/cvconfig.h")
375
376 # ---------------------------------------------------------------------------
377 # The C+//0 include & link directories:
378 # ---------------------------------------------------------------------------
379 include_directories("."
380     "${OPENCV_CONFIG_FILE_INCLUDE_DIR}"
381     "${CMAKE_SOURCE_DIR}/include"
382     "${CMAKE_SOURCE_DIR}/include/opencv"
383     )
384
385 # ----------------------------------------------------------------------------
386 #                       Set the maximum level of warnings:
387 # ----------------------------------------------------------------------------
388 # Should be set to true for development
389 set(OPENCV_WARNINGS_ARE_ERRORS OFF CACHE BOOL "Treat warnings as errors")
390
391 # Whole program optimization?
392 set(OPENCV_WHOLE_PROGRAM_OPTIMIZATION OFF CACHE BOOL "Flags for whole program optimization.")
393
394 set(EXTRA_C_FLAGS "")
395 set(EXTRA_C_FLAGS_RELEASE "")
396 set(EXTRA_C_FLAGS_DEBUG "")
397 set(EXTRA_EXE_LINKER_FLAGS "")
398 set(EXTRA_EXE_LINKER_FLAGS_RELEASE "")
399 set(EXTRA_EXE_LINKER_FLAGS_DEBUG "")
400
401 if(MSVC)
402     set(EXTRA_C_FLAGS "${EXTRA_C_FLAGS} /W4 /D _CRT_SECURE_NO_DEPRECATE /D _CRT_NONSTDC_NO_DEPRECATE")
403     # 64-bit portability warnings, in MSVC8
404     if(MSVC80)
405         set(OPENCV_EXTRA_C_FLAGS "${OPENCV_EXTRA_C_FLAGS} /Wp64")
406     endif()
407
408     set(EXTRA_EXE_LINKER_FLAGS_RELEASE "${EXTRA_EXE_LINKER_FLAGS_RELEASE} /debug")
409
410     # Whole program optimization
411     if(OPENCV_WHOLE_PROGRAM_OPTIMIZATION AND MSVC_VERSION GREATER 1300)
412         set(EXTRA_C_FLAGS_RELEASE "${EXTRA_C_FLAGS_RELEASE} /GL")
413         set(CMAKE_EXE_LINKER_FLAGS_RELEASE "${CMAKE_EXE_LINKER_FLAGS_RELEASE} /LTCG")
414         set(CMAKE_MODULE_LINKER_FLAGS_RELEASE "${CMAKE_MODULE_LINKER_FLAGS_RELEASE} /LTCG")
415     endif()
416
417     if(OPENCV_ENABLE_OPENMP)
418         set(EXTRA_C_FLAGS_RELEASE "${EXTRA_C_FLAGS_RELEASE} /openmp")
419     endif()
420
421     # Remove unreferenced functions: function level linking
422     set(EXTRA_C_FLAGS "${EXTRA_C_FLAGS} /Gy")
423     set(EXTRA_C_FLAGS_RELEASE "${EXTRA_C_FLAGS_RELEASE} /Zi")
424 endif()
425
426 if(CMAKE_COMPILER_IS_GNUCXX)
427     # High level of warnings.
428     # The -Wno-long-long is required in 64bit systems when including sytem headers.
429     set(EXTRA_C_FLAGS "${EXTRA_C_FLAGS} -Wall")
430
431     # We need pthread's
432     if(UNIX)
433         set(EXTRA_C_FLAGS "${EXTRA_C_FLAGS} -pthread")
434     endif()
435
436     if(OPENCV_WARNINGS_ARE_ERRORS)
437         set(EXTRA_C_FLAGS "${EXTRA_C_FLAGS} -Werror")
438     endif()
439
440     # Whole program optimization
441     if(OPENCV_WHOLE_PROGRAM_OPTIMIZATION)
442         set(EXTRA_C_FLAGS_RELEASE "${EXTRA_C_FLAGS_RELEASE} -fwhole-program --combine")
443     endif()
444
445     # Other optimizations
446     if(OPENCV_USE_OMIT_FRAME_POINTER)
447        set(EXTRA_C_FLAGS_RELEASE "${EXTRA_C_FLAGS_RELEASE} -fomit-frame-pointer")
448     endif()
449     if(OPENCV_USE_O2)
450        set(EXTRA_C_FLAGS_RELEASE "${EXTRA_C_FLAGS_RELEASE} -O2")
451     endif()
452     if(OPENCV_USE_O3)
453        set(EXTRA_C_FLAGS_RELEASE "${EXTRA_C_FLAGS_RELEASE} -O3")
454     endif()
455     if(OPENCV_USE_FAST_MATH)
456        set(EXTRA_C_FLAGS_RELEASE "${EXTRA_C_FLAGS_RELEASE} -ffast-math")
457     endif()
458     if(OPENCV_USE_POWERPC)
459        set(EXTRA_C_FLAGS_RELEASE "${EXTRA_C_FLAGS_RELEASE} -mcpu=G3 -mtune=G5")
460     endif()
461     if(OPENCV_USE_MMX)
462        set(EXTRA_C_FLAGS_RELEASE "${EXTRA_C_FLAGS_RELEASE} -mmmx")
463     endif()
464     # SSE should be disabled under MingW because it generates compiler errors
465     if(OPENCV_USE_SSE)
466        set(EXTRA_C_FLAGS_RELEASE "${EXTRA_C_FLAGS_RELEASE} -msse")
467     endif()
468     # SSE2 should be disabled under MingW because it generates compiler errors
469     if(OPENCV_USE_SSE2)
470        set(EXTRA_C_FLAGS_RELEASE "${EXTRA_C_FLAGS_RELEASE} -msse2")
471     endif()
472     # SSE3 should be disabled under MingW because it generates compiler errors
473     if(OPENCV_USE_SSE3 AND NOT MINGW)
474        set(EXTRA_C_FLAGS_RELEASE "${EXTRA_C_FLAGS_RELEASE} -msse3")
475     endif()
476
477     # Profiling?
478     if(OPENCV_ENABLE_PROFILING)
479         set(EXTRA_C_FLAGS_RELEASE "${EXTRA_C_FLAGS_RELEASE} -pg -g")
480     else()
481         # Remove unreferenced functions: function level linking
482         if(NOT APPLE)
483             set(EXTRA_C_FLAGS "${EXTRA_C_FLAGS} -ffunction-sections")
484         endif()
485     endif()
486
487     # Parallel mode
488     if(OPENCV_ENABLE_OPENMP)
489         set(EXTRA_C_FLAGS "${EXTRA_C_FLAGS} -D_GLIBCXX_PARALLEL -fopenmp")
490     endif()
491
492     set(EXTRA_C_FLAGS_RELEASE "${EXTRA_C_FLAGS_RELEASE} -DNDEBUG")
493     set(EXTRA_C_FLAGS_DEBUG "${EXTRA_C_FLAGS_DEBUG} -O0 -DDEBUG -D_DEBUG")
494 endif()
495
496
497 # Add user supplied extra options (optimization, etc...)
498 # ==========================================================
499 set(OPENCV_EXTRA_C_FLAGS ${EXTRA_C_FLAGS} CACHE STRING "Extra compiler options" FORCE)
500 set(OPENCV_EXTRA_C_FLAGS_RELEASE ${EXTRA_C_FLAGS_RELEASE} CACHE STRING "Extra compiler options for Release build" FORCE)
501 set(OPENCV_EXTRA_C_FLAGS_DEBUG ${EXTRA_C_FLAGS_DEBUG} CACHE STRING "Extra compiler options for Debug build" FORCE)
502 set(OPENCV_EXTRA_EXE_LINKER_FLAGS ${EXTRA_EXE_LINKER_FLAGS} CACHE STRING "Extra linker flags" FORCE)
503 set(OPENCV_EXTRA_EXE_LINKER_FLAGS_RELEASE ${EXTRA_EXE_LINKER_FLAGS_RELEASE} CACHE STRING "Extra linker flags for Release build" FORCE)
504 set(OPENCV_EXTRA_EXE_LINKER_FLAGS_DEBUG ${EXTRA_EXE_LINKER_FLAGS_DEBUG} CACHE STRING "Extra linker flags for Debug build" FORCE)
505
506 set(CMAKE_CXX_FLAGS "${CMAKE_CXX_FLAGS} ${OPENCV_EXTRA_C_FLAGS}")
507 set(CMAKE_C_FLAGS "${CMAKE_C_FLAGS} ${OPENCV_EXTRA_C_FLAGS}")
508 set(CMAKE_CXX_FLAGS_RELEASE "${CMAKE_CXX_FLAGS_RELEASE} ${OPENCV_EXTRA_C_FLAGS_RELEASE}")
509 set(CMAKE_C_FLAGS_RELEASE "${CMAKE_C_FLAGS_RELEASE} ${OPENCV_EXTRA_C_FLAGS_RELEASE}")
510 set(CMAKE_CXX_FLAGS_DEBUG "${CMAKE_CXX_FLAGS_DEBUG} ${OPENCV_EXTRA_C_FLAGS_DEBUG}")
511 set(CMAKE_C_FLAGS_DEBUG "${CMAKE_C_FLAGS_DEBUG} ${OPENCV_EXTRA_C_FLAGS_DEBUG}")
512 set(CMAKE_EXE_LINKER_FLAGS "${CMAKE_EXE_LINKER_FLAGS} ${OPENCV_EXTRA_EXE_LINKER_FLAGS}")
513 set(CMAKE_EXE_LINKER_FLAGS_RELEASE "${CMAKE_EXE_LINKER_FLAGS_RELEASE} ${OPENCV_EXTRA_EXE_LINKER_FLAGS_RELEASE}")
514 set(CMAKE_EXE_LINKER_FLAGS_DEBUG "${CMAKE_EXE_LINKER_FLAGS_DEBUG} ${OPENCV_EXTRA_EXE_LINKER_FLAGS_DEBUG}")
515
516 if("${CMAKE_CONFIGURE_LDFLAGS}")
517     set(CMAKE_EXE_LINKER_FLAGS "${CMAKE_EXE_LINKER_FLAGS} ${CMAKE_CONFIGURE_LDFLAGS}")
518 endif("${CMAKE_CONFIGURE_LDFLAGS}")
519
520 # ----------------------------------------------------------------------------
521 #                                       PROCESS SUBDIRECTORIES:
522 # ----------------------------------------------------------------------------
523 # Save libs and executables in the same place
524 set(LIBRARY_OUTPUT_PATH ${CMAKE_BINARY_DIR}/lib CACHE PATH "Output directory for libraries" )
525 set(EXECUTABLE_OUTPUT_PATH ${CMAKE_BINARY_DIR}/bin CACHE PATH "Output directory for applications" )
526
527 if(WIN32)
528 set(OPENCV_DOC_INSTALL_PATH doc)
529 else()
530 set(OPENCV_DOC_INSTALL_PATH share/opencv/doc)
531 endif()
532
533 #-----------------------------------
534 # Subdirectories:
535 #-----------------------------------
536 add_subdirectory(src)
537 add_subdirectory(apps)
538 add_subdirectory(doc)
539 add_subdirectory(data)
540
541 if(BUILD_EXAMPLES OR INSTALL_PYTHON_EXAMPLES OR INSTALL_OCTAVE_EXAMPLES)
542     add_subdirectory(samples)
543 endif()
544
545 if(BUILD_TESTS)
546     enable_testing()
547     add_subdirectory(tests)
548 endif()
549
550 add_subdirectory(interfaces)
551 add_subdirectory(3rdparty)
552
553 # --------------------------------------------------------------------------------------------
554 #   Installation for CMake Module:  OpenCVConfig.cmake
555 #  Part 1/3: ${BIN_DIR}/OpenCVConfig.cmake              -> For use *without* "make install"
556 #  Part 2/3: ${BIN_DIR}/unix-install/OpenCVConfig.cmake -> For use with "make install"
557 #  Part 3/3: ${BIN_DIR}/win-install/OpenCVConfig.cmake  -> For use within binary installers/packages
558 # -------------------------------------------------------------------------------------------
559
560 # -------------------------------------------------------------------------------------------
561 #  Part 1/2: ${BIN_DIR}/OpenCVConfig.cmake              -> For use *without* "make install"
562 # -------------------------------------------------------------------------------------------
563
564 # Name of libraries is: libcv.so.1.1.0, etc...
565 #  OPENCV_DLLVERSION must be set to "110", etc..
566 # Already done above.
567
568 # Set CMAKE_INCLUDE_DIRS_CONFIGCMAKE to the list of include directories:
569 set(CMAKE_INCLUDE_DIRS_CONFIGCMAKE)
570 list(APPEND CMAKE_INCLUDE_DIRS_CONFIGCMAKE "${OPENCV_CONFIG_FILE_INCLUDE_DIR}")
571 list(APPEND CMAKE_INCLUDE_DIRS_CONFIGCMAKE "${CMAKE_SOURCE_DIR}/include")
572 list(APPEND CMAKE_INCLUDE_DIRS_CONFIGCMAKE "${CMAKE_SOURCE_DIR}/include/opencv")
573
574 set(CMAKE_LIB_DIRS_CONFIGCMAKE ${LIBRARY_OUTPUT_PATH})
575
576 configure_file("${CMAKE_SOURCE_DIR}/OpenCVConfig.cmake.in" "${CMAKE_BINARY_DIR}/OpenCVConfig.cmake" IMMEDIATE @ONLY)
577
578 # --------------------------------------------------------------------------------------------
579 #  Part 2/2: ${BIN_DIR}/unix-install/OpenCVConfig.cmake -> For use *with* "make install"
580 # -------------------------------------------------------------------------------------------
581 # Set CMAKE_INCLUDE_DIRS_CONFIGCMAKE to the list of include directories:
582
583 set(CMAKE_INCLUDE_DIRS_CONFIGCMAKE "${CMAKE_INSTALL_PREFIX}/include/opencv")
584 set(CMAKE_LIB_DIRS_CONFIGCMAKE "${CMAKE_INSTALL_PREFIX}/lib")
585
586 #exec_program(${CMAKE_COMMAND} ARGS "-E make_directory \"${CMAKE_BINARY_DIR}/unix-install/\"")
587 exec_program(mkdir ARGS "-p \"${CMAKE_BINARY_DIR}/unix-install/\"")
588 configure_file("${CMAKE_SOURCE_DIR}/OpenCVConfig.cmake.in" "${CMAKE_BINARY_DIR}/unix-install/OpenCVConfig.cmake" IMMEDIATE @ONLY)
589
590 if(UNIX)
591     # For a command "FIND_PACKAGE(FOO)", CMake will look at the directory /usr/share|lib/FOO/FOOConfig.cmake, so:
592     install(FILES ${CMAKE_BINARY_DIR}/unix-install/OpenCVConfig.cmake DESTINATION ${CMAKE_INSTALL_PREFIX}/share/opencv/)
593 endif()
594
595 # --------------------------------------------------------------------------------------------
596 #  Part 3/3: ${BIN_DIR}/win-install/OpenCVConfig.cmake  -> For use within binary installers/packages
597 # -------------------------------------------------------------------------------------------
598 if(WIN32)
599         # Set CMAKE_INCLUDE_DIRS_CONFIGCMAKE to the list of include directories:
600         
601         # This will expand to, for example, <program files>/OpenCV 1.1.0/include
602         set(CMAKE_INCLUDE_DIRS_CONFIGCMAKE "\"\${THIS_OPENCV_CONFIG_PATH}/include\"")
603
604         # This will expand to, for example, <program files>/OpenCV 1.1.0/lib
605         set(CMAKE_LIB_DIRS_CONFIGCMAKE "\"\${THIS_OPENCV_CONFIG_PATH}/lib\"")
606
607         #exec_program(${CMAKE_COMMAND} ARGS "-E make_directory \"${CMAKE_BINARY_DIR}/win-install/\"")
608         exec_program(mkdir ARGS "-p \"${CMAKE_BINARY_DIR}/win-install/\"")
609         configure_file("${CMAKE_SOURCE_DIR}/OpenCVConfig.cmake.in" "${CMAKE_BINARY_DIR}/win-install/OpenCVConfig.cmake" IMMEDIATE @ONLY)
610 endif()
611
612
613 # --------------------------------------------------------------------------------------------
614 #  Part 2/2: ${BIN_DIR}/unix-install/opencv.pc -> For use *with* "make install"
615 # prefix=/usr
616 # exec_prefix=${prefix}
617 # libdir=${exec_prefix}/lib
618 # includedir=${prefix}/include/opencv
619 # -------------------------------------------------------------------------------------------
620 set(prefix              ${CMAKE_INSTALL_PREFIX})
621 set(exec_prefix         "\${prefix}")
622 set(libdir              "\${exec_prefix}/lib")
623 set(includedir          "\${prefix}/include")
624 set(VERSION             ${OPENCV_VERSION})
625
626 configure_file("${CMAKE_SOURCE_DIR}/opencv.pc.cmake.in" "${CMAKE_BINARY_DIR}/unix-install/opencv.pc" @ONLY IMMEDIATE)
627
628 if(UNIX)
629     install(FILES ${CMAKE_BINARY_DIR}/unix-install/opencv.pc DESTINATION lib/pkgconfig)
630 endif()
631
632
633 # ----------------------------------------------------------------------------
634 #   Uninstall target, for "make uninstall"
635 # ----------------------------------------------------------------------------
636 CONFIGURE_FILE(
637   "${CMAKE_CURRENT_SOURCE_DIR}/cmake_uninstall.cmake.in"
638   "${CMAKE_CURRENT_BINARY_DIR}/cmake_uninstall.cmake"
639   IMMEDIATE @ONLY)
640
641 ADD_CUSTOM_TARGET(uninstall
642   "${CMAKE_COMMAND}" -P "${CMAKE_CURRENT_BINARY_DIR}/cmake_uninstall.cmake")
643
644
645 # ----------------------------------------------------------------------------
646 #   CPack target
647 # ----------------------------------------------------------------------------
648
649 option(BUILD_PACKAGE "Build a installer with the SDK")
650
651 if(BUILD_PACKAGE)
652
653         configure_file(
654         Package.cmake.in
655         ${CMAKE_BINARY_DIR}/.cpack/Package.cmake
656         @ONLY
657         )
658         
659         install(FILES 
660                 AUTHORS
661                 ChangeLog
662                 COPYING
663                 INSTALL
664                 NEWS
665                 README
666                 THANKS
667                 TODO
668                 DESTINATION ${OPENCV_DOC_INSTALL_PATH}
669         COMPONENT doc
670                 )
671                 
672         include(${CMAKE_BINARY_DIR}/.cpack/Package.cmake)
673         
674 endif()
675
676 # ----------------------------------------------------------------------------
677 #   Sumary:
678 # ----------------------------------------------------------------------------
679 message(STATUS "")
680 message(STATUS "General configuration for opencv ${OPENCV_VERSION} =====================================")
681 message(STATUS "")
682 message(STATUS "    Compiler:                  ${CMAKE_COMPILER}")
683 message(STATUS "    C++ flags (Release):       ${CMAKE_CXX_FLAGS} ${CMAKE_CXX_FLAGS_RELEASE}")
684 message(STATUS "    C++ flags (Debug):         ${CMAKE_CXX_FLAGS} ${CMAKE_CXX_FLAGS_DEBUG}")
685 if(WIN32)
686 message(STATUS "    Linker flags (Release):    ${CMAKE_EXE_LINKER_FLAGS} ${CMAKE_EXE_LINKER_FLAGS_RELEASE}")
687 message(STATUS "    Linker flags (Debug):      ${CMAKE_EXE_LINKER_FLAGS} ${CMAKE_EXE_LINKER_FLAGS_DEBUG}")
688 else()
689 message(STATUS "    Linker flags (Release):    ${CMAKE_SHARED_LINKER_FLAGS} ${CMAKE_SHARED_LINKER_FLAGS_RELEASE}")
690 message(STATUS "    Linker flags (Debug):      ${CMAKE_SHARED_LINKER_FLAGS} ${CMAKE_SHARED_LINKER_FLAGS_DEBUG}")
691 endif()
692
693 if(UNIX)
694 if(NOT APPLE)
695 message(STATUS "")
696 message(STATUS "  GUI: ")
697 message(STATUS "    GTK+ 2.x:                  ${HAVE_GTK}")
698 message(STATUS "    GThread:                   ${HAVE_GTHREAD}")
699 message(STATUS "")
700 if(NOT OPENCV_BUILD_3RDPARTY_LIBS)
701 message(STATUS "  Image I/O: ")
702 message(STATUS "    JPEG:                      ${JPEG_FOUND}")
703 message(STATUS "    PNG:                       ${PNG_FOUND}")
704 message(STATUS "    TIFF:                      ${TIFF_FOUND}")
705 message(STATUS "    JASPER:                    ${JASPER_FOUND}")
706 else()
707 message(STATUS "  Image I/O: ")
708 message(STATUS "    JPEG:                      build")
709 message(STATUS "    PNG:                       build")
710 message(STATUS "    TIFF:                      build")
711 message(STATUS "    JASPER:                    build")
712 endif()
713 endif()
714 message(STATUS "")
715 message(STATUS "  Video I/O: ")
716 message(STATUS "    DC1394 1.x:                ${HAVE_DC1394}")
717 message(STATUS "    DC1394 2.x:                ${HAVE_DC1394_2}")
718 message(STATUS "    FFMPEG:                    ${HAVE_FFMPEG}")
719 message(STATUS "    GStreamer:                 ${HAVE_GSTREAMER}")
720 message(STATUS "    UniCap:                    ${HAVE_UNICAP}")
721 if(HAVE_LIBV4L)
722 message(STATUS "    V4L/V4L2:                  Using libv4l")
723 else()
724 message(STATUS "    V4L/V4L2:                  ${HAVE_CAMV4L}/${HAVE_CAMV4L2}")
725 endif()
726 message(STATUS "    Xine:                      ${HAVE_XINE}")
727 endif()
728 message(STATUS "")
729 message(STATUS "  Interfaces: ")
730 if(PYTHONLIBS_FOUND AND BUILD_PYTHON_SUPPORT)
731 message(STATUS "    Python:                    1")
732 else()
733 message(STATUS "    Python:                    0")
734 endif()
735 if(IPP_FOUND AND USE_IPP)
736 message(STATUS "    Use IPP:                   1")
737 else()
738 message(STATUS "    Use IPP:                   0")
739 endif()
740 message(STATUS "")
741 message(STATUS "    Install path:              ${CMAKE_INSTALL_PREFIX}")
742 message(STATUS "")
743 message(STATUS "    cvconfig.h is in:          ${OPENCV_CONFIG_FILE_INCLUDE_DIR}")
744 message(STATUS "-----------------------------------------------------------------")
745 message(STATUS "")
746
747 #----------------------------------------------------------------------------
748 #   Generate the OpenCVConfig.cmake file for unix
749 #      installation in CMAKE_INSTALL_PREFIX
750 #----------------------------------------------------------------------------