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 "ALSA backend" ON)
19 OPTION(OSS "OSS backend" ON)
20 OPTION(DSOUND "DirectSound backend" ON)
21 OPTION(WINMM "Windows Multimedia backend" ON)
23 OPTION(DLOPEN "Use the dlopen API for loading optional libs" ON)
25 OPTION(DEBUG "Build lib in debug mode" OFF)
26 OPTION(NODEBUG "Disable all debug info for optimizations" OFF)
27 OPTION(WERROR "Treat compile warnings as errors" OFF)
30 SET(LIB_MAJOR_VERSION "1")
31 SET(LIB_MINOR_VERSION "1")
32 SET(LIB_BUILD_VERSION "93")
33 SET(LIB_VERSION "${LIB_MAJOR_VERSION}.${LIB_MINOR_VERSION}.${LIB_BUILD_VERSION}")
36 CHECK_TYPE_SIZE("long" SIZEOF_LONG)
37 CHECK_TYPE_SIZE("long long" SIZEOF_LONG_LONG)
38 CHECK_TYPE_SIZE("unsigned int" SIZEOF_UINT)
39 CHECK_TYPE_SIZE("void*" SIZEOF_VOIDP)
42 # Add definitions, compiler switches, etc.
43 INCLUDE_DIRECTORIES(OpenAL32/Include include "${OpenAL_BINARY_DIR}")
48 ADD_DEFINITIONS(-Wall)
49 CHECK_C_COMPILER_FLAG(-Wextra HAVE_W_EXTRA)
51 ADD_DEFINITIONS(-Wextra)
55 ADD_DEFINITIONS(-Werror)
61 ADD_DEFINITIONS(-O2 -funroll-loops -fomit-frame-pointer)
63 ADD_DEFINITIONS(-g -O2 -funroll-loops)
66 # The mixer doesn't like GCC's strict aliasing optimizations. Make sure
68 CHECK_C_COMPILER_FLAG(-fstrict-aliasing HAVE_STRICT_ALIASING)
69 IF("${HAVE_STRICT_ALIASING}")
70 ADD_DEFINITIONS(-fno-strict-aliasing)
73 # Set visibility options if available
75 CHECK_C_SOURCE_COMPILES("int foo() __attribute__((destructor));
76 int main() {return 0;}" HAVE_GCC_DESTRUCTOR)
78 CHECK_C_COMPILER_FLAG(-fvisibility=hidden HAVE_VISIBILITY_SWITCH)
79 IF("${HAVE_VISIBILITY_SWITCH}")
80 CHECK_C_SOURCE_COMPILES("int foo() __attribute__((visibility(\"default\")));
81 int main() {return 0;}" HAVE_GCC_VISIBILITY)
82 IF("${HAVE_GCC_VISIBILITY}")
83 ADD_DEFINITIONS(-fvisibility=hidden -DHAVE_GCC_VISIBILITY)
90 ADD_DEFINITIONS(-D_DEBUG)
92 ADD_DEFINITIONS(-DNDEBUG)
95 CHECK_LIBRARY_EXISTS(m sqrtf "" HAVE_SQRTF)
97 SET(EXTRA_LIBS m ${EXTRA_LIBS})
99 CHECK_FUNCTION_EXISTS(strtof HAVE_STRTOF)
101 CHECK_FUNCTION_EXISTS(strcasecmp HAVE_STRCASECMP)
102 IF(NOT "${HAVE_STRCASECMP}")
103 CHECK_FUNCTION_EXISTS(_stricmp HAVE__STRICMP)
104 IF(NOT "${HAVE__STRICMP}")
105 MESSAGE(FATAL_ERROR "No case-insensitive compare function found, please report!")
108 ADD_DEFINITIONS(-Dstrcasecmp=_stricmp)
111 CHECK_FUNCTION_EXISTS(snprintf HAVE_SNPRINTF)
112 IF(NOT "${HAVE_SNPRINTF}")
113 CHECK_FUNCTION_EXISTS(_snprintf HAVE__SNPRINTF)
114 IF(NOT "${HAVE__SNPRINTF}")
115 MESSAGE(FATAL_ERROR "No snprintf function found, please report!")
118 ADD_DEFINITIONS(-Dsnprintf=_snprintf)
121 # Check for the dlopen API (for dynamicly loading backend libs)
123 CHECK_INCLUDE_FILE(dlfcn.h HAVE_DLFCN_H)
124 IF("${HAVE_DLFCN_H}")
125 CHECK_LIBRARY_EXISTS(dl dlopen "" HAVE_LIBDL)
127 SET(EXTRA_LIBS dl ${EXTRA_LIBS})
132 # Check if we have Windows headers
133 CHECK_INCLUDE_FILE(windows.h HAVE_WINDOWS_H)
134 IF(NOT "${HAVE_WINDOWS_H}")
135 CHECK_FUNCTION_EXISTS(gettimeofday HAVE_GETTIMEOFDAY)
136 IF(NOT "${HAVE_GETTIMEOFDAY}")
137 MESSAGE(FATAL_ERROR "No timing function found!")
140 CHECK_FUNCTION_EXISTS(nanosleep HAVE_NANOSLEEP)
141 IF(NOT "${HAVE_NANOSLEEP}")
142 MESSAGE(FATAL_ERROR "No sleep function found!")
145 # We need pthreads outside of Windows
146 CHECK_INCLUDE_FILE(pthread.h HAVE_PTHREAD_H)
147 IF(NOT "${HAVE_PTHREAD_H}")
148 MESSAGE(FATAL_ERROR "PThreads is required for non-Windows builds!")
151 # _GNU_SOURCE is needed on some systems for extra attributes, and
152 # _REENTRANT is needed for libc thread-safety
153 ADD_DEFINITIONS(-D_GNU_SOURCE=1 -D_REENTRANT)
154 CHECK_LIBRARY_EXISTS(pthread pthread_create "" HAVE_LIBPTHREAD)
155 IF("${HAVE_LIBPTHREAD}")
156 SET(EXTRA_LIBS pthread ${EXTRA_LIBS})
160 # Check for a 64-bit type
161 CHECK_INCLUDE_FILE(stdint.h HAVE_STDINT_H)
162 IF(NOT "${HAVE_STDINT_H}")
163 IF("${HAVE_WINDOWS_H}")
164 CHECK_C_SOURCE_COMPILES("\#include <windows.h>
166 int main() {return 0;}" HAVE___INT64)
168 IF(NOT "${HAVE___INT64}")
169 IF(NOT "${SIZEOF_LONG}" MATCHES "8")
170 IF(NOT "${SIZEOF_LONG_LONG}" MATCHES "8")
171 MESSAGE(FATAL_ERROR "No 64-bit types found, please report!")
178 SET(OPENAL_OBJS OpenAL32/alAuxEffectSlot.c
182 OpenAL32/alExtension.c
184 OpenAL32/alListener.c
190 SET(ALC_OBJS Alc/ALc.c
203 CHECK_INCLUDE_FILE(alsa/asoundlib.h HAVE_ALSA_ASOUNDLIB_H)
204 IF("${HAVE_ALSA_ASOUNDLIB_H}")
205 CHECK_LIBRARY_EXISTS(asound snd_pcm_open "" HAVE_LIBASOUND)
206 IF("${HAVE_DLFCN_H}" OR "${HAVE_LIBASOUND}")
208 SET(ALC_OBJS ${ALC_OBJS} Alc/alsa.c)
209 IF("${HAVE_DLFCN_H}")
210 SET(BACKENDS ${BACKENDS} ALSA)
212 SET(BACKENDS ${BACKENDS} ALSA\(linked\))
213 SET(EXTRA_LIBS asound ${EXTRA_LIBS})
221 CHECK_INCLUDE_FILE(sys/soundcard.h HAVE_SYS_SOUNDCARD_H)
222 IF("${HAVE_SYS_SOUNDCARD_H}")
224 SET(ALC_OBJS ${ALC_OBJS} Alc/oss.c)
225 SET(BACKENDS ${BACKENDS} OSS)
229 # Check DSound/MMSystem backend
230 IF("${HAVE_WINDOWS_H}")
231 SET(CMAKE_REQUIRED_LIBRARIES ole32)
232 CHECK_C_SOURCE_COMPILES("int main() {return 0;}" HAVE_LIBOLE32)
233 SET(CMAKE_REQUIRED_LIBRARIES "")
234 # CHECK_LIBRARY_EXISTS(ole32 CoInitialize "" HAVE_LIBOLE32)
235 IF("${HAVE_LIBOLE32}")
236 SET(EXTRA_LIBS ole32 ${EXTRA_LIBS})
240 CHECK_INCLUDE_FILE(dsound.h HAVE_DSOUND_H)
241 IF("${HAVE_DSOUND_H}")
243 SET(ALC_OBJS ${ALC_OBJS} Alc/dsound.c)
244 SET(BACKENDS ${BACKENDS} DirectSound)
246 CHECK_LIBRARY_EXISTS(dxguid IID_IDirectSound "" HAVE_LIBDXGUID)
247 IF("${HAVE_LIBDXGUID}")
248 SET(EXTRA_LIBS dxguid ${EXTRA_LIBS})
253 CHECK_INCLUDE_FILES("windows.h;mmsystem.h" HAVE_MMSYSTEM_H)
254 IF("${HAVE_MMSYSTEM_H}")
256 SET(ALC_OBJS ${ALC_OBJS} Alc/winmm.c)
257 SET(BACKENDS ${BACKENDS} WinMM)
259 SET(CMAKE_REQUIRED_LIBRARIES winmm)
260 CHECK_C_SOURCE_COMPILES("int main() {return 0;}" HAVE_LIBWINMM)
261 SET(CMAKE_REQUIRED_LIBRARIES "")
262 # CHECK_LIBRARY_EXISTS(winmm waveInOpen "" HAVE_LIBWINMM)
263 IF("${HAVE_LIBWINMM}")
264 SET(EXTRA_LIBS winmm ${EXTRA_LIBS})
270 # This is always available
271 SET(BACKENDS ${BACKENDS} WaveFile)
275 "${OpenAL_SOURCE_DIR}/config.h.in"
276 "${OpenAL_BINARY_DIR}/config.h")
278 ADD_DEFINITIONS(-DAL_BUILD_LIBRARY)
280 # Build a shared library
282 SET(LIBNAME openal32)
287 ADD_LIBRARY(${LIBNAME} SHARED ${OPENAL_OBJS} ${ALC_OBJS})
288 SET_TARGET_PROPERTIES(${LIBNAME} PROPERTIES VERSION ${LIB_VERSION}
289 SOVERSION ${LIB_MAJOR_VERSION})
291 SET_TARGET_PROPERTIES(${LIBNAME} PROPERTIES PREFIX "")
294 TARGET_LINK_LIBRARIES(${LIBNAME} ${EXTRA_LIBS})
296 # Add an install target here
297 INSTALL(TARGETS ${LIBNAME}
298 RUNTIME DESTINATION bin
299 LIBRARY DESTINATION lib
300 ARCHIVE DESTINATION lib
302 INSTALL(FILES include/AL/al.h
304 DESTINATION include/AL
308 MESSAGE(STATUS "Building OpenAL with support for the following backends:")
309 MESSAGE(STATUS " ${BACKENDS}")