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 "0")
32 SET(LIB_BUILD_VERSION "38")
33 SET(LIB_VERSION "${LIB_MAJOR_VERSION}.${LIB_MINOR_VERSION}.${LIB_BUILD_VERSION}")
38 SET(TARGET_OPTS "PREFIX \"\"")
45 CHECK_TYPE_SIZE("long" SIZEOF_LONG)
46 CHECK_TYPE_SIZE("long long" SIZEOF_LONG_LONG)
47 CHECK_TYPE_SIZE("unsigned int" SIZEOF_UINT)
48 CHECK_TYPE_SIZE("void*" SIZEOF_VOIDP)
51 # Add definitions, compiler switches, etc.
52 INCLUDE_DIRECTORIES(OpenAL32/Include include "${OpenAL_BINARY_DIR}")
53 SET(EXTRA_LIBS m ${EXTRA_LIBS})
58 ADD_DEFINITIONS(-Wall)
59 CHECK_C_COMPILER_FLAG(-Wextra HAVE_W_EXTRA)
61 ADD_DEFINITIONS(-Wextra)
65 ADD_DEFINITIONS(-Werror)
71 ADD_DEFINITIONS(-O2 -funroll-loops -fomit-frame-pointer)
73 ADD_DEFINITIONS(-g -O2 -funroll-loops)
76 # The mixer doesn't like GCC's strict aliasing optimizations. Make sure
78 CHECK_C_COMPILER_FLAG(-fstrict-aliasing HAVE_STRICT_ALIASING)
79 IF("${HAVE_STRICT_ALIASING}")
80 ADD_DEFINITIONS(-fno-strict-aliasing)
83 # Set visibility options if available
85 CHECK_C_SOURCE_COMPILES("int foo() __attribute__((destructor));
86 int main() {return 0;}" HAVE_GCC_DESTRUCTOR)
88 CHECK_C_COMPILER_FLAG(-fvisibility=hidden HAVE_VISIBILITY_SWITCH)
89 IF("${HAVE_VISIBILITY_SWITCH}")
90 CHECK_C_SOURCE_COMPILES("int foo() __attribute__((visibility(\"default\")));
91 int main() {return 0;}" HAVE_GCC_VISIBILITY)
92 IF("${HAVE_GCC_VISIBILITY}")
93 ADD_DEFINITIONS(-fvisibility=hidden -DHAVE_GCC_VISIBILITY)
100 ADD_DEFINITIONS(-D_DEBUG)
102 ADD_DEFINITIONS(-DNDEBUG)
105 CHECK_LIBRARY_EXISTS(m sqrtf "" HAVE_SQRTF)
106 CHECK_FUNCTION_EXISTS(strtof HAVE_STRTOF)
108 CHECK_FUNCTION_EXISTS(strcasecmp HAVE_STRCASECMP)
109 IF(NOT "${HAVE_STRCASECMP}")
110 CHECK_FUNCTION_EXISTS(_stricmp HAVE__STRICMP)
111 IF(NOT "${HAVE__STRICMP}")
112 MESSAGE(FATAL_ERROR "No case-insensitive compare function found, please report!")
115 ADD_DEFINITIONS(-Dstrcasecmp=_stricmp)
118 # Check for the dlopen API (for dynamicly loading backend libs)
120 CHECK_INCLUDE_FILE(dlfcn.h HAVE_DLFCN_H)
121 IF("${HAVE_DLFCN_H}")
122 CHECK_LIBRARY_EXISTS(dl dlopen "" HAVE_LIBDL)
124 SET(EXTRA_LIBS dl ${EXTRA_LIBS})
129 # Check if we have Windows headers
130 CHECK_INCLUDE_FILE(windows.h HAVE_WINDOWS_H)
131 IF(NOT "${HAVE_WINDOWS_H}")
132 # We need pthreads outside of Windows
133 CHECK_INCLUDE_FILE(pthread.h HAVE_PTHREAD_H)
134 IF(NOT "${HAVE_PTHREAD_H}")
135 MESSAGE(FATAL_ERROR "PThreads is required for non-Windows builds!")
138 # _GNU_SOURCE is needed on some systems for extra attributes, and
139 # _REENTRANT is needed for libc thread-safety
140 ADD_DEFINITIONS(-D_GNU_SOURCE=1 -D_REENTRANT)
141 CHECK_LIBRARY_EXISTS(pthread pthread_create "" HAVE_LIBPTHREAD)
142 IF("${HAVE_LIBPTHREAD}")
143 SET(EXTRA_LIBS pthread ${EXTRA_LIBS})
147 # Check for a 64-bit type
148 CHECK_INCLUDE_FILE(stdint.h HAVE_STDINT_H)
149 IF(NOT "${HAVE_STDINT_H}")
150 IF("${HAVE_WINDOWS_H}")
151 CHECK_C_SOURCE_COMPILES("\#include <windows.h>
153 int main() {return 0;}" HAVE___INT64)
155 IF(NOT "${HAVE___INT64}")
156 IF(NOT "${SIZEOF_LONG}" MATCHES "8")
157 IF(NOT "${SIZEOF_LONG_LONG}" MATCHES "8")
158 MESSAGE(FATAL_ERROR "No 64-bit types found, please report!")
165 SET(OPENAL_OBJS OpenAL32/alBuffer.c
167 OpenAL32/alExtension.c
168 OpenAL32/alListener.c
174 SET(ALC_OBJS Alc/ALc.c
185 CHECK_INCLUDE_FILE(alsa/asoundlib.h HAVE_ALSA_ASOUNDLIB_H)
186 IF("${HAVE_ALSA_ASOUNDLIB_H}")
187 CHECK_LIBRARY_EXISTS(asound snd_pcm_open "" HAVE_LIBASOUND)
188 IF("${HAVE_DLFCN_H}" OR "${HAVE_LIBASOUND}")
190 SET(ALC_OBJS ${ALC_OBJS} Alc/alsa.c)
191 IF("${HAVE_DLFCN_H}")
192 SET(BACKENDS ${BACKENDS} ALSA)
194 SET(BACKENDS ${BACKENDS} ALSA\(linked\))
195 SET(EXTRA_LIBS asound ${EXTRA_LIBS})
203 CHECK_INCLUDE_FILE(sys/soundcard.h HAVE_SYS_SOUNDCARD_H)
204 IF("${HAVE_SYS_SOUNDCARD_H}")
206 SET(ALC_OBJS ${ALC_OBJS} Alc/oss.c)
207 SET(BACKENDS ${BACKENDS} OSS)
211 # Check DSound/MMSystem backend
212 IF("${HAVE_WINDOWS_H}")
213 SET(CMAKE_REQUIRED_LIBRARIES ole32)
214 CHECK_C_SOURCE_COMPILES("int main() {return 0;}" HAVE_LIBOLE32)
215 SET(CMAKE_REQUIRED_LIBRARIES "")
216 # CHECK_LIBRARY_EXISTS(ole32 CoInitialize "" HAVE_LIBOLE32)
217 IF("${HAVE_LIBOLE32}")
218 SET(EXTRA_LIBS ole32 ${EXTRA_LIBS})
222 CHECK_INCLUDE_FILE(dsound.h HAVE_DSOUND_H)
223 IF("${HAVE_DSOUND_H}")
225 SET(ALC_OBJS ${ALC_OBJS} Alc/dsound.c)
226 SET(BACKENDS ${BACKENDS} DirectSound)
228 CHECK_LIBRARY_EXISTS(dxguid IID_IDirectSound "" HAVE_LIBDXGUID)
229 IF("${HAVE_LIBDXGUID}")
230 SET(EXTRA_LIBS dxguid ${EXTRA_LIBS})
235 CHECK_INCLUDE_FILES("windows.h;mmsystem.h" HAVE_MMSYSTEM_H)
236 IF("${HAVE_MMSYSTEM_H}")
238 SET(ALC_OBJS ${ALC_OBJS} Alc/winmm.c)
239 SET(BACKENDS ${BACKENDS} WinMM)
241 SET(CMAKE_REQUIRED_LIBRARIES winmm)
242 CHECK_C_SOURCE_COMPILES("int main() {return 0;}" HAVE_LIBWINMM)
243 SET(CMAKE_REQUIRED_LIBRARIES "")
244 # CHECK_LIBRARY_EXISTS(winmm waveInOpen "" HAVE_LIBWINMM)
245 IF("${HAVE_LIBWINMM}")
246 SET(EXTRA_LIBS winmm ${EXTRA_LIBS})
254 "${OpenAL_SOURCE_DIR}/config.h.in"
255 "${OpenAL_BINARY_DIR}/config.h")
257 ADD_DEFINITIONS(-DAL_BUILD_LIBRARY)
259 # Build a shared library
260 ADD_LIBRARY(${LIBNAME} SHARED ${OPENAL_OBJS} ${ALC_OBJS})
261 SET_TARGET_PROPERTIES(${LIBNAME} PROPERTIES VERSION ${LIB_VERSION}
262 SOVERSION ${LIB_MAJOR_VERSION}
265 TARGET_LINK_LIBRARIES(${LIBNAME} ${EXTRA_LIBS})
267 # Add an install target here
268 INSTALL(TARGETS ${LIBNAME}
269 RUNTIME DESTINATION bin
270 LIBRARY DESTINATION lib
271 ARCHIVE DESTINATION lib
273 INSTALL(FILES include/AL/al.h
275 DESTINATION include/AL
279 MESSAGE(STATUS "Building OpenAL with support for the following backends:")
280 MESSAGE(STATUS " ${BACKENDS}")