1 # CMake build file list for OpenAL
3 INCLUDE(CheckFunctionExists)
4 INCLUDE(CheckLibraryExists)
5 INCLUDE(CheckIncludeFile)
6 INCLUDE(CheckIncludeFiles)
7 INCLUDE(CheckCCompilerFlag)
8 INCLUDE(CheckCSourceCompiles)
15 SET(CMAKE_ALLOW_LOOSE_LOOP_CONSTRUCTS TRUE)
18 OPTION(ALSA "Check for ALSA backend" ON)
19 OPTION(OSS "Check for OSS backend" ON)
20 OPTION(DSOUND "Check for DirectSound backend" ON)
21 OPTION(WINMM "Check for Windows Multimedia backend" ON)
23 OPTION(DLOPEN "Check for the dlopen API for loading optional libs" ON)
25 OPTION(WERROR "Treat compile warnings as errors" OFF)
28 SET(LIB_MAJOR_VERSION "1")
29 SET(LIB_MINOR_VERSION "1")
30 SET(LIB_BUILD_VERSION "93")
31 SET(LIB_VERSION "${LIB_MAJOR_VERSION}.${LIB_MINOR_VERSION}.${LIB_BUILD_VERSION}")
34 CHECK_TYPE_SIZE("long" SIZEOF_LONG)
35 CHECK_TYPE_SIZE("long long" SIZEOF_LONG_LONG)
36 CHECK_TYPE_SIZE("unsigned int" SIZEOF_UINT)
37 CHECK_TYPE_SIZE("void*" SIZEOF_VOIDP)
40 # Add definitions, compiler switches, etc.
41 INCLUDE_DIRECTORIES(OpenAL32/Include include "${OpenAL_BINARY_DIR}")
43 IF(NOT CMAKE_BUILD_TYPE)
44 SET(CMAKE_BUILD_TYPE RelWithDebInfo CACHE STRING
45 "Choose the type of build, options are: Debug Release RelWithDebInfo MinSizeRel."
51 SET(CMAKE_C_FLAGS_RELWITHDEBINFO "${CMAKE_C_FLAGS_RELWITHDEBINFO} -D_DEBUG")
52 SET(CMAKE_C_FLAGS_MINSIZEREL "${CMAKE_C_FLAGS_MINSIZEREL} -DNDEBUG")
53 SET(CMAKE_C_FLAGS_RELEASE "${CMAKE_C_FLAGS_RELEASE} -DNDEBUG")
54 SET(CMAKE_C_FLAGS_DEBUG "${CMAKE_C_FLAGS_DEBUG} -D_DEBUG")
56 ADD_DEFINITIONS(-Wall)
57 CHECK_C_COMPILER_FLAG(-Wextra HAVE_W_EXTRA)
59 ADD_DEFINITIONS(-Wextra)
63 ADD_DEFINITIONS(-Werror)
66 SET(CMAKE_C_FLAGS_RELWITHDEBINFO "-g -O2 -funroll-loops -D_DEBUG" CACHE STRING
67 "Flags used by the compiler during Release with Debug Info builds."
69 SET(CMAKE_C_FLAGS_MINSIZEREL "-Os -DNDEBUG" CACHE STRING
70 "Flags used by the compiler during release minsize builds."
72 SET(CMAKE_C_FLAGS_RELEASE "-O2 -funroll-loops -fomit-frame-pointer -DNDEBUG" CACHE STRING
73 "Flags used by the compiler during release builds"
75 SET(CMAKE_C_FLAGS_DEBUG "-g3 -D_DEBUG" CACHE STRING
76 "Flags used by the compiler during debug builds."
79 # The mixer doesn't like GCC's strict aliasing optimizations. Make sure
81 CHECK_C_COMPILER_FLAG(-fstrict-aliasing HAVE_STRICT_ALIASING)
82 IF("${HAVE_STRICT_ALIASING}")
83 ADD_DEFINITIONS(-fno-strict-aliasing)
86 # Set visibility options if available
88 CHECK_C_SOURCE_COMPILES("int foo() __attribute__((destructor));
89 int main() {return 0;}" HAVE_GCC_DESTRUCTOR)
91 CHECK_C_COMPILER_FLAG(-fvisibility=hidden HAVE_VISIBILITY_SWITCH)
92 IF("${HAVE_VISIBILITY_SWITCH}")
93 CHECK_C_SOURCE_COMPILES("int foo() __attribute__((visibility(\"default\")));
94 int main() {return 0;}" HAVE_GCC_VISIBILITY)
95 IF("${HAVE_GCC_VISIBILITY}")
96 ADD_DEFINITIONS(-fvisibility=hidden -DHAVE_GCC_VISIBILITY)
103 CHECK_LIBRARY_EXISTS(m sqrtf "" HAVE_SQRTF)
105 SET(EXTRA_LIBS m ${EXTRA_LIBS})
107 CHECK_FUNCTION_EXISTS(strtof HAVE_STRTOF)
109 CHECK_FUNCTION_EXISTS(strcasecmp HAVE_STRCASECMP)
110 IF(NOT HAVE_STRCASECMP)
111 CHECK_FUNCTION_EXISTS(_stricmp HAVE__STRICMP)
112 IF(NOT HAVE__STRICMP)
113 MESSAGE(FATAL_ERROR "No case-insensitive compare function found, please report!")
116 ADD_DEFINITIONS(-Dstrcasecmp=_stricmp)
119 CHECK_FUNCTION_EXISTS(strncasecmp HAVE_STRNCASECMP)
120 IF(NOT HAVE_STRNCASECMP)
121 CHECK_FUNCTION_EXISTS(_strnicmp HAVE__STRNICMP)
122 IF(NOT HAVE__STRNICMP)
123 MESSAGE(FATAL_ERROR "No case-insensitive size-limitted compare function found, please report!")
126 ADD_DEFINITIONS(-Dstrncasecmp=_strnicmp)
129 CHECK_FUNCTION_EXISTS(snprintf HAVE_SNPRINTF)
130 IF(NOT HAVE_SNPRINTF)
131 CHECK_FUNCTION_EXISTS(_snprintf HAVE__SNPRINTF)
132 IF(NOT HAVE__SNPRINTF)
133 MESSAGE(FATAL_ERROR "No snprintf function found, please report!")
136 ADD_DEFINITIONS(-Dsnprintf=_snprintf)
139 # Check for the dlopen API (for dynamicly loading backend libs)
141 CHECK_INCLUDE_FILE(dlfcn.h HAVE_DLFCN_H)
143 CHECK_LIBRARY_EXISTS(dl dlopen "" HAVE_LIBDL)
145 SET(EXTRA_LIBS dl ${EXTRA_LIBS})
150 # Check if we have Windows headers
151 CHECK_INCLUDE_FILE(windows.h HAVE_WINDOWS_H)
152 IF(NOT HAVE_WINDOWS_H)
153 CHECK_FUNCTION_EXISTS(gettimeofday HAVE_GETTIMEOFDAY)
154 IF(NOT HAVE_GETTIMEOFDAY)
155 MESSAGE(FATAL_ERROR "No timing function found!")
158 CHECK_FUNCTION_EXISTS(nanosleep HAVE_NANOSLEEP)
159 IF(NOT HAVE_NANOSLEEP)
160 MESSAGE(FATAL_ERROR "No sleep function found!")
163 # We need pthreads outside of Windows
164 CHECK_INCLUDE_FILE(pthread.h HAVE_PTHREAD_H)
165 IF(NOT HAVE_PTHREAD_H)
166 MESSAGE(FATAL_ERROR "PThreads is required for non-Windows builds!")
169 # _GNU_SOURCE is needed on some systems for extra attributes, and
170 # _REENTRANT is needed for libc thread-safety
171 ADD_DEFINITIONS(-D_GNU_SOURCE=1 -D_REENTRANT)
172 CHECK_LIBRARY_EXISTS(pthread pthread_create "" HAVE_LIBPTHREAD)
174 SET(EXTRA_LIBS pthread ${EXTRA_LIBS})
178 # Check for a 64-bit type
179 CHECK_INCLUDE_FILE(stdint.h HAVE_STDINT_H)
180 IF(NOT HAVE_STDINT_H)
182 CHECK_C_SOURCE_COMPILES("\#include <windows.h>
184 int main() {return 0;}" HAVE___INT64)
187 IF(NOT SIZEOF_LONG MATCHES "8")
188 IF(NOT SIZEOF_LONG_LONG MATCHES "8")
189 MESSAGE(FATAL_ERROR "No 64-bit types found, please report!")
196 SET(OPENAL_OBJS OpenAL32/alAuxEffectSlot.c
200 OpenAL32/alExtension.c
202 OpenAL32/alListener.c
208 SET(ALC_OBJS Alc/ALc.c
221 CHECK_INCLUDE_FILE(alsa/asoundlib.h HAVE_ALSA_ASOUNDLIB_H)
222 IF(HAVE_ALSA_ASOUNDLIB_H)
223 CHECK_LIBRARY_EXISTS(asound snd_pcm_open "" HAVE_LIBASOUND)
224 IF(HAVE_DLFCN_H OR HAVE_LIBASOUND)
226 SET(ALC_OBJS ${ALC_OBJS} Alc/alsa.c)
228 SET(BACKENDS "${BACKENDS} ALSA,")
230 SET(BACKENDS "${BACKENDS} ALSA \(linked\),")
231 SET(EXTRA_LIBS asound ${EXTRA_LIBS})
239 CHECK_INCLUDE_FILE(sys/soundcard.h HAVE_SYS_SOUNDCARD_H)
240 IF(HAVE_SYS_SOUNDCARD_H)
242 SET(ALC_OBJS ${ALC_OBJS} Alc/oss.c)
243 SET(BACKENDS "${BACKENDS} OSS,")
247 # Check DSound/MMSystem backend
249 SET(CMAKE_REQUIRED_LIBRARIES ole32)
250 CHECK_C_SOURCE_COMPILES("int main() {return 0;}" HAVE_LIBOLE32)
251 SET(CMAKE_REQUIRED_LIBRARIES "")
252 # CHECK_LIBRARY_EXISTS(ole32 CoInitialize "" HAVE_LIBOLE32)
254 SET(EXTRA_LIBS ole32 ${EXTRA_LIBS})
258 CHECK_INCLUDE_FILE(dsound.h HAVE_DSOUND_H)
261 SET(ALC_OBJS ${ALC_OBJS} Alc/dsound.c)
262 SET(BACKENDS "${BACKENDS} DirectSound,")
264 CHECK_LIBRARY_EXISTS(dxguid IID_IDirectSound "" HAVE_LIBDXGUID)
266 SET(EXTRA_LIBS dxguid ${EXTRA_LIBS})
271 CHECK_INCLUDE_FILES("windows.h;mmsystem.h" HAVE_MMSYSTEM_H)
274 SET(ALC_OBJS ${ALC_OBJS} Alc/winmm.c)
275 SET(BACKENDS "${BACKENDS} WinMM,")
277 SET(CMAKE_REQUIRED_LIBRARIES winmm)
278 CHECK_C_SOURCE_COMPILES("int main() {return 0;}" HAVE_LIBWINMM)
279 SET(CMAKE_REQUIRED_LIBRARIES "")
280 # CHECK_LIBRARY_EXISTS(winmm waveInOpen "" HAVE_LIBWINMM)
282 SET(EXTRA_LIBS winmm ${EXTRA_LIBS})
288 # This is always available
289 SET(BACKENDS "${BACKENDS} WaveFile")
293 "${OpenAL_SOURCE_DIR}/config.h.in"
294 "${OpenAL_BINARY_DIR}/config.h")
296 ADD_DEFINITIONS(-DAL_BUILD_LIBRARY)
298 # Build a shared library
300 SET(LIBNAME openal32)
305 ADD_LIBRARY(${LIBNAME} SHARED ${OPENAL_OBJS} ${ALC_OBJS})
306 SET_TARGET_PROPERTIES(${LIBNAME} PROPERTIES VERSION ${LIB_VERSION}
307 SOVERSION ${LIB_MAJOR_VERSION})
309 SET_TARGET_PROPERTIES(${LIBNAME} PROPERTIES PREFIX "")
312 TARGET_LINK_LIBRARIES(${LIBNAME} ${EXTRA_LIBS})
314 # Add an install target here
315 INSTALL(TARGETS ${LIBNAME}
316 RUNTIME DESTINATION bin
317 LIBRARY DESTINATION lib
318 ARCHIVE DESTINATION lib
320 INSTALL(FILES include/AL/al.h
322 DESTINATION include/AL
326 MESSAGE(STATUS "Building OpenAL with support for the following backends:")
327 MESSAGE(STATUS " ${BACKENDS}")