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Custom cmake file for openal to add explicit -march flag on mingw, fixing compile error

mcc 13 лет назад
Родитель
Сommit
5a270544b7
3 измененных файлов с 785 добавлено и 0 удалено
  1. 2 0
      CMake/ExternalOpenAL.cmake
  2. 782 0
      CMake/openal.cmake
  3. 1 0
      CMakeLists.txt

+ 2 - 0
CMake/ExternalOpenAL.cmake

@@ -15,6 +15,8 @@ ExternalProject_Add(openal
     PREFIX ${openal_PREFIX}
 
     DOWNLOAD_DIR ${POLYCODE_DEPS_DOWNLOAD_DIR}
+    
+    PATCH_COMMAND ${CMAKE_COMMAND} -E copy_if_different ${PolycodeDependencies_SOURCE_DIR}/../CMake/openal.cmake <SOURCE_DIR>/CMakeLists.txt
 
     URL http://kcat.strangesoft.net/openal-releases/openal-soft-1.14.tar.bz2
     URL_MD5 3d8b86c21a2f87a2a5e60f78f3b3f03d

+ 782 - 0
CMake/openal.cmake

@@ -0,0 +1,782 @@
+# CMake build file list for OpenAL
+
+CMAKE_MINIMUM_REQUIRED(VERSION 2.4)
+
+IF(COMMAND CMAKE_POLICY)
+  CMAKE_POLICY(SET CMP0003 NEW)
+ENDIF(COMMAND CMAKE_POLICY)
+
+SET(CMAKE_MODULE_PATH "${CMAKE_SOURCE_DIR}/cmake")
+
+INCLUDE(CheckFunctionExists)
+INCLUDE(CheckLibraryExists)
+INCLUDE(CheckSharedFunctionExists)
+INCLUDE(CheckIncludeFile)
+INCLUDE(CheckIncludeFiles)
+INCLUDE(CheckSymbolExists)
+INCLUDE(CheckCCompilerFlag)
+INCLUDE(CheckCSourceCompiles)
+INCLUDE(CheckTypeSize)
+INCLUDE(FindPkgConfig)
+
+
+PROJECT(OpenAL C)
+
+
+SET(CMAKE_ALLOW_LOOSE_LOOP_CONSTRUCTS TRUE)
+
+
+OPTION(ALSA    "Check for ALSA backend"                ON)
+OPTION(OSS     "Check for OSS backend"                 ON)
+OPTION(SOLARIS "Check for Solaris backend"             ON)
+OPTION(SNDIO   "Check for SndIO backend"               ON)
+OPTION(MMDEVAPI "Check for MMDevApi"                   ON)
+OPTION(DSOUND  "Check for DirectSound backend"         ON)
+OPTION(WINMM   "Check for Windows Multimedia backend"  ON)
+OPTION(PORTAUDIO  "Check for PortAudio backend"        ON)
+OPTION(PULSEAUDIO "Check for PulseAudio backend"       ON)
+OPTION(COREAUDIO  "Check for CoreAudio backend"        ON)
+OPTION(OPENSL     "Check for OpenSL backend"           ON)
+OPTION(WAVE    "Enable Wave Writer backend"            ON)
+
+OPTION(REQUIRE_ALSA       "Require ALSA backend"               OFF)
+OPTION(REQUIRE_OSS        "Require OSS backend"                OFF)
+OPTION(REQUIRE_SOLARIS    "Require Solaris backend"            OFF)
+OPTION(REQUIRE_SNDIO      "Require SndIO backend"              OFF)
+OPTION(REQUIRE_MMDEVAPI   "Require MMDevApi"                   OFF)
+OPTION(REQUIRE_DSOUND     "Require DirectSound backend"        OFF)
+OPTION(REQUIRE_WINMM      "Require Windows Multimedia backend" OFF)
+OPTION(REQUIRE_PORTAUDIO  "Require PortAudio backend"          OFF)
+OPTION(REQUIRE_PULSEAUDIO "Require PulseAudio backend"         OFF)
+OPTION(REQUIRE_COREAUDIO  "Require CoreAudio backend"          OFF)
+OPTION(REQUIRE_OPENSL     "Require OpenSL backend"             OFF)
+
+OPTION(DLOPEN  "Check for the dlopen API for loading optional libs"  ON)
+
+OPTION(WERROR  "Treat compile warnings as errors"      OFF)
+
+OPTION(UTILS  "Build and install utility programs"  ON)
+
+OPTION(EXAMPLES  "Build and install example programs"  ON)
+
+OPTION(ALSOFT_CONFIG "Install alsoft.conf configuration file" OFF)
+
+
+IF(WIN32)
+    SET(LIBNAME OpenAL32)
+    IF(MINGW)
+        # Specify Pentium 2 instruction set, so TAS intrinsics will be inlined instead of becoming linker errors
+        ADD_DEFINITIONS("-D_WIN32 -D_WIN32_WINNT=0x0501 -march=i686 -mmmx -msse")
+    ELSE(MINGW)
+        ADD_DEFINITIONS("-D_WIN32 -D_WIN32_WINNT=0x0501")
+    ENDIF(MINGW)
+ELSE()
+    SET(LIBNAME openal)
+ENDIF()
+
+IF(NOT LIBTYPE)
+    SET(LIBTYPE SHARED)
+ENDIF()
+
+SET(LIB_MAJOR_VERSION "1")
+SET(LIB_MINOR_VERSION "14")
+SET(LIB_VERSION "${LIB_MAJOR_VERSION}.${LIB_MINOR_VERSION}")
+
+SET(EXPORT_DECL "")
+
+
+CHECK_TYPE_SIZE("long" SIZEOF_LONG)
+CHECK_TYPE_SIZE("long long" SIZEOF_LONG_LONG)
+
+
+CHECK_C_SOURCE_COMPILES("int *restrict foo;
+                         int main() {return 0;}" HAVE_RESTRICT)
+CHECK_C_SOURCE_COMPILES("int *__restrict foo;
+                         int main() {return 0;}" HAVE___RESTRICT)
+
+
+# Add definitions, compiler switches, etc.
+INCLUDE_DIRECTORIES(OpenAL32/Include include "${OpenAL_BINARY_DIR}")
+
+IF(NOT CMAKE_BUILD_TYPE)
+    SET(CMAKE_BUILD_TYPE RelWithDebInfo CACHE STRING
+        "Choose the type of build, options are: Debug Release RelWithDebInfo MinSizeRel."
+        FORCE)
+ENDIF()
+IF(NOT CMAKE_DEBUG_POSTFIX)
+    SET(CMAKE_DEBUG_POSTFIX "" CACHE STRING
+        "Library postfix for debug builds. Normally left blank."
+        FORCE)
+ENDIF()
+
+IF(MSVC)
+    # ???
+    SET(CMAKE_C_FLAGS_RELWITHDEBINFO "${CMAKE_C_FLAGS_RELWITHDEBINFO} -D_DEBUG")
+    SET(CMAKE_C_FLAGS_MINSIZEREL "${CMAKE_C_FLAGS_MINSIZEREL} -DNDEBUG")
+    SET(CMAKE_C_FLAGS_RELEASE "${CMAKE_C_FLAGS_RELEASE} -DNDEBUG")
+    SET(CMAKE_C_FLAGS_DEBUG "${CMAKE_C_FLAGS_DEBUG} -D_DEBUG")
+    ADD_DEFINITIONS(-D_CRT_SECURE_NO_WARNINGS)
+    ADD_DEFINITIONS(-D_CRT_NONSTDC_NO_DEPRECATE)
+
+    IF(NOT DXSDK_DIR)
+        STRING(REGEX REPLACE "\\\\" "/" DXSDK_DIR "$ENV{DXSDK_DIR}")
+    ELSE()
+        STRING(REGEX REPLACE "\\\\" "/" DXSDK_DIR "${DXSDK_DIR}")
+    ENDIF()
+    IF(DXSDK_DIR)
+        MESSAGE(STATUS "Using DirectX SDK directory: ${DXSDK_DIR}")
+        SET(CMAKE_REQUIRED_INCLUDES ${CMAKE_REQUIRED_INCLUDES} "${DXSDK_DIR}/Include")
+        INCLUDE_DIRECTORIES("${DXSDK_DIR}/Include")
+        LINK_DIRECTORIES("${DXSDK_DIR}/Lib")
+    ENDIF()
+
+    OPTION(FORCE_STATIC_VCRT "Force /MT for static VC runtimes" OFF)
+    IF(FORCE_STATIC_VCRT)
+        FOREACH(flag_var
+                CMAKE_C_FLAGS CMAKE_C_FLAGS_DEBUG CMAKE_C_FLAGS_RELEASE
+                CMAKE_C_FLAGS_MINSIZEREL CMAKE_C_FLAGS_RELWITHDEBINFO)
+            IF(${flag_var} MATCHES "/MD")
+                STRING(REGEX REPLACE "/MD" "/MT" ${flag_var} "${${flag_var}}")
+            ENDIF()
+        ENDFOREACH(flag_var)
+    ENDIF()
+ELSE()
+    ADD_DEFINITIONS(-Winline -Wall)
+    CHECK_C_COMPILER_FLAG(-Wextra HAVE_W_EXTRA)
+    IF(HAVE_W_EXTRA)
+        ADD_DEFINITIONS(-Wextra)
+    ENDIF()
+
+    IF(WERROR)
+        ADD_DEFINITIONS(-Werror)
+    ENDIF()
+
+    SET(CMAKE_C_FLAGS_RELWITHDEBINFO "-g -O2 -D_DEBUG" CACHE STRING
+        "Flags used by the compiler during Release with Debug Info builds."
+        FORCE)
+    SET(CMAKE_C_FLAGS_MINSIZEREL "-Os -DNDEBUG" CACHE STRING
+        "Flags used by the compiler during release minsize builds."
+        FORCE)
+    SET(CMAKE_C_FLAGS_RELEASE "-O2 -fomit-frame-pointer -DNDEBUG" CACHE STRING
+        "Flags used by the compiler during release builds"
+        FORCE)
+    SET(CMAKE_C_FLAGS_DEBUG "-g3 -D_DEBUG" CACHE STRING
+        "Flags used by the compiler during debug builds."
+        FORCE)
+
+    CHECK_C_SOURCE_COMPILES("int foo() __attribute__((destructor));
+                             int main() {return 0;}" HAVE_GCC_DESTRUCTOR)
+ENDIF()
+
+# Set visibility/export options if available
+IF(WIN32)
+    SET(EXPORT_DECL "__declspec(dllexport)")
+
+    OPTION(WINE "Enable use of Wine headers when compiling" OFF)
+    IF(WINE)
+        FIND_PATH(WINE_INCLUDE_DIR library.h
+                  PATHS
+                  /usr/include/wine
+                  /usr/local/include/wine
+                  CMAKE_FIND_ROOT_PATH_BOTH)
+        IF(WINE_INCLUDE_DIR)
+            MESSAGE(STATUS "Found Wine header files - ${WINE_INCLUDE_DIR}" )
+            INCLUDE_DIRECTORIES("${WINE_INCLUDE_DIR}/windows")
+            SET(CMAKE_REQUIRED_INCLUDES ${CMAKE_REQUIRED_INCLUDES} "${WINE_INCLUDE_DIR}/windows")
+        ELSE()
+            MESSAGE(STATUS "Could not find Wine header files" )
+        ENDIF()
+    ENDIF()
+ELSE()
+    SET(OLD_REQUIRED_FLAGS "${CMAKE_REQUIRED_FLAGS}")
+    # Yes GCC, really don't accept visibility modes you don't support
+    SET(CMAKE_REQUIRED_FLAGS "${OLD_REQUIRED_FLAGS} -Wattributes -Werror")
+
+    CHECK_C_SOURCE_COMPILES("int foo() __attribute__((visibility(\"protected\")));
+                             int main() {return 0;}" HAVE_GCC_PROTECTED_VISIBILITY)
+    IF(HAVE_GCC_PROTECTED_VISIBILITY)
+        SET(EXPORT_DECL "__attribute__((visibility(\"protected\")))")
+    ELSE()
+        CHECK_C_SOURCE_COMPILES("int foo() __attribute__((visibility(\"default\")));
+                                 int main() {return 0;}" HAVE_GCC_DEFAULT_VISIBILITY)
+        IF(HAVE_GCC_DEFAULT_VISIBILITY)
+            SET(EXPORT_DECL "__attribute__((visibility(\"default\")))")
+        ENDIF()
+    ENDIF()
+
+    IF(HAVE_GCC_PROTECTED_VISIBILITY OR HAVE_GCC_DEFAULT_VISIBILITY)
+        CHECK_C_COMPILER_FLAG(-fvisibility=internal HAVE_VISIBILITY_INTERNAL_SWITCH)
+        IF(HAVE_VISIBILITY_INTERNAL_SWITCH)
+            ADD_DEFINITIONS(-fvisibility=internal)
+        ELSE()
+            CHECK_C_COMPILER_FLAG(-fvisibility=hidden HAVE_VISIBILITY_HIDDEN_SWITCH)
+            IF(HAVE_VISIBILITY_HIDDEN_SWITCH)
+                ADD_DEFINITIONS(-fvisibility=hidden)
+            ENDIF()
+        ENDIF()
+    ENDIF()
+
+    SET(CMAKE_REQUIRED_FLAGS "${OLD_REQUIRED_FLAGS}")
+ENDIF()
+
+CHECK_C_SOURCE_COMPILES("int foo(const char *str, ...) __attribute__((format(printf, 1, 2)));
+                         int main() {return 0;}" HAVE_GCC_FORMAT)
+
+CHECK_INCLUDE_FILE(fenv.h HAVE_FENV_H)
+CHECK_INCLUDE_FILE(fpu_control.h HAVE_FPU_CONTROL_H)
+CHECK_INCLUDE_FILE(float.h HAVE_FLOAT_H)
+CHECK_INCLUDE_FILE(ieeefp.h HAVE_IEEEFP_H)
+CHECK_INCLUDE_FILE(guiddef.h HAVE_GUIDDEF_H)
+IF(NOT HAVE_GUIDDEF_H)
+    CHECK_INCLUDE_FILE(initguid.h HAVE_INITGUID_H)
+ENDIF()
+CHECK_INCLUDE_FILE(arm_neon.h HAVE_ARM_NEON_H)
+
+# Some systems need libm for some of the following math functions to work
+CHECK_LIBRARY_EXISTS(m pow "" HAVE_LIBM)
+IF(HAVE_LIBM)
+    SET(EXTRA_LIBS m ${EXTRA_LIBS})
+    SET(CMAKE_REQUIRED_LIBRARIES ${CMAKE_REQUIRED_LIBRARIES} m)
+ENDIF()
+
+
+CHECK_SYMBOL_EXISTS(powf   math.h HAVE_POWF)
+CHECK_SYMBOL_EXISTS(sqrtf  math.h HAVE_SQRTF)
+CHECK_SYMBOL_EXISTS(cosf   math.h HAVE_COSF)
+CHECK_SYMBOL_EXISTS(sinf   math.h HAVE_SINF)
+CHECK_SYMBOL_EXISTS(acosf  math.h HAVE_ACOSF)
+CHECK_SYMBOL_EXISTS(asinf  math.h HAVE_ASINF)
+CHECK_SYMBOL_EXISTS(atanf  math.h HAVE_ATANF)
+CHECK_SYMBOL_EXISTS(atan2f math.h HAVE_ATAN2F)
+CHECK_SYMBOL_EXISTS(fabsf  math.h HAVE_FABSF)
+CHECK_SYMBOL_EXISTS(log10f math.h HAVE_LOG10F)
+CHECK_SYMBOL_EXISTS(floorf math.h HAVE_FLOORF)
+
+IF(HAVE_FENV_H)
+    CHECK_SYMBOL_EXISTS(fesetround fenv.h HAVE_FESETROUND)
+ENDIF()
+
+CHECK_FUNCTION_EXISTS(strtof HAVE_STRTOF)
+CHECK_FUNCTION_EXISTS(_controlfp HAVE__CONTROLFP)
+
+CHECK_FUNCTION_EXISTS(stat HAVE_STAT)
+CHECK_FUNCTION_EXISTS(strcasecmp HAVE_STRCASECMP)
+IF(NOT HAVE_STRCASECMP)
+    CHECK_FUNCTION_EXISTS(_stricmp HAVE__STRICMP)
+    IF(NOT HAVE__STRICMP)
+        MESSAGE(FATAL_ERROR "No case-insensitive compare function found, please report!")
+    ENDIF()
+
+    ADD_DEFINITIONS(-Dstrcasecmp=_stricmp)
+ENDIF()
+
+CHECK_FUNCTION_EXISTS(strncasecmp HAVE_STRNCASECMP)
+IF(NOT HAVE_STRNCASECMP)
+    CHECK_FUNCTION_EXISTS(_strnicmp HAVE__STRNICMP)
+    IF(NOT HAVE__STRNICMP)
+        MESSAGE(FATAL_ERROR "No case-insensitive size-limitted compare function found, please report!")
+    ENDIF()
+
+    ADD_DEFINITIONS(-Dstrncasecmp=_strnicmp)
+ENDIF()
+
+CHECK_FUNCTION_EXISTS(snprintf HAVE_SNPRINTF)
+IF(NOT HAVE_SNPRINTF)
+    CHECK_FUNCTION_EXISTS(_snprintf HAVE__SNPRINTF)
+    IF(NOT HAVE__SNPRINTF)
+        MESSAGE(FATAL_ERROR "No snprintf function found, please report!")
+    ENDIF()
+
+    ADD_DEFINITIONS(-Dsnprintf=_snprintf)
+ENDIF()
+
+CHECK_FUNCTION_EXISTS(vsnprintf HAVE_VSNPRINTF)
+IF(NOT HAVE_VSNPRINTF)
+    CHECK_FUNCTION_EXISTS(_vsnprintf HAVE__VSNPRINTF)
+    IF(NOT HAVE__VSNPRINTF)
+        MESSAGE(FATAL_ERROR "No vsnprintf function found, please report!")
+    ENDIF()
+
+    ADD_DEFINITIONS(-Dvsnprintf=_vsnprintf)
+ENDIF()
+
+CHECK_SYMBOL_EXISTS(isfinite math.h HAVE_ISFINITE)
+IF(NOT HAVE_ISFINITE)
+    CHECK_FUNCTION_EXISTS(finite HAVE_FINITE)
+    IF(NOT HAVE_FINITE)
+        CHECK_FUNCTION_EXISTS(_finite HAVE__FINITE)
+        IF(NOT HAVE__FINITE)
+            MESSAGE(FATAL_ERROR "No isfinite function found, please report!")
+        ENDIF()
+        ADD_DEFINITIONS(-Disfinite=_finite)
+    ELSE()
+        ADD_DEFINITIONS(-Disfinite=finite)
+    ENDIF()
+ENDIF()
+
+CHECK_SYMBOL_EXISTS(isnan math.h HAVE_ISNAN)
+IF(NOT HAVE_ISNAN)
+    CHECK_FUNCTION_EXISTS(_isnan HAVE__ISNAN)
+    IF(NOT HAVE__ISNAN)
+        MESSAGE(FATAL_ERROR "No isnan function found, please report!")
+    ENDIF()
+
+    ADD_DEFINITIONS(-Disnan=_isnan)
+ENDIF()
+
+
+# Check for the dlopen API (for dynamicly loading backend libs)
+IF(DLOPEN)
+    CHECK_INCLUDE_FILE(dlfcn.h HAVE_DLFCN_H)
+    IF(HAVE_DLFCN_H)
+        CHECK_LIBRARY_EXISTS(dl dlopen "" HAVE_LIBDL)
+        IF(HAVE_LIBDL)
+            SET(EXTRA_LIBS dl ${EXTRA_LIBS})
+        ENDIF()
+    ENDIF()
+ENDIF()
+
+# Check if we have Windows headers
+CHECK_INCLUDE_FILE(windows.h HAVE_WINDOWS_H -D_WIN32_WINNT=0x0501)
+IF(NOT HAVE_WINDOWS_H)
+    CHECK_FUNCTION_EXISTS(gettimeofday HAVE_GETTIMEOFDAY)
+    IF(NOT HAVE_GETTIMEOFDAY)
+        MESSAGE(FATAL_ERROR "No timing function found!")
+    ENDIF()
+
+    CHECK_FUNCTION_EXISTS(nanosleep HAVE_NANOSLEEP)
+    IF(NOT HAVE_NANOSLEEP)
+        MESSAGE(FATAL_ERROR "No sleep function found!")
+    ENDIF()
+
+    CHECK_C_COMPILER_FLAG(-pthread HAVE_PTHREAD)
+    IF(HAVE_PTHREAD)
+        ADD_DEFINITIONS(-pthread)
+        SET(EXTRA_LIBS ${EXTRA_LIBS} -pthread)
+    ENDIF()
+
+    # We need pthreads outside of Windows
+    CHECK_INCLUDE_FILE(pthread.h HAVE_PTHREAD_H)
+    IF(NOT HAVE_PTHREAD_H)
+        MESSAGE(FATAL_ERROR "PThreads is required for non-Windows builds!")
+    ENDIF()
+    # Some systems need pthread_np.h to get recursive mutexes
+    CHECK_INCLUDE_FILES("pthread.h;pthread_np.h" HAVE_PTHREAD_NP_H)
+
+    # _GNU_SOURCE is needed on some systems for extra attributes, and
+    # _REENTRANT is needed for libc thread-safety
+    ADD_DEFINITIONS(-D_GNU_SOURCE=1)
+    CHECK_LIBRARY_EXISTS(pthread pthread_create "" HAVE_LIBPTHREAD)
+    IF(HAVE_LIBPTHREAD)
+        SET(EXTRA_LIBS pthread ${EXTRA_LIBS})
+    ENDIF()
+
+    CHECK_LIBRARY_EXISTS(pthread pthread_setschedparam "" HAVE_PTHREAD_SETSCHEDPARAM)
+
+    CHECK_LIBRARY_EXISTS(rt clock_gettime "" HAVE_LIBRT)
+    IF(HAVE_LIBRT)
+        SET(EXTRA_LIBS rt ${EXTRA_LIBS})
+    ENDIF()
+ENDIF()
+
+# Check for a 64-bit type
+CHECK_INCLUDE_FILE(stdint.h HAVE_STDINT_H)
+IF(NOT HAVE_STDINT_H)
+    IF(HAVE_WINDOWS_H)
+        CHECK_C_SOURCE_COMPILES("\#define _WIN32_WINNT 0x0501
+                                 \#include <windows.h>
+                                 __int64 foo;
+                                 int main() {return 0;}" HAVE___INT64)
+    ENDIF()
+    IF(NOT HAVE___INT64)
+        IF(NOT SIZEOF_LONG MATCHES "8")
+            IF(NOT SIZEOF_LONG_LONG MATCHES "8")
+                MESSAGE(FATAL_ERROR "No 64-bit types found, please report!")
+            ENDIF()
+        ENDIF()
+    ENDIF()
+ENDIF()
+
+# Windows needs winmm for timeGetTime, even if the backend is disabled
+CHECK_SHARED_FUNCTION_EXISTS(timeGetTime "windows.h;mmsystem.h" winmm "" HAVE_LIBWINMM)
+IF(HAVE_LIBWINMM)
+    SET(EXTRA_LIBS winmm ${EXTRA_LIBS})
+    SET(PKG_CONFIG_LIBS ${PKG_CONFIG_LIBS} -lwinmm)
+ENDIF()
+
+
+SET(OPENAL_OBJS  OpenAL32/alAuxEffectSlot.c
+                 OpenAL32/alBuffer.c
+                 OpenAL32/alEffect.c
+                 OpenAL32/alError.c
+                 OpenAL32/alExtension.c
+                 OpenAL32/alFilter.c
+                 OpenAL32/alListener.c
+                 OpenAL32/alSource.c
+                 OpenAL32/alState.c
+                 OpenAL32/alThunk.c
+)
+SET(ALC_OBJS  Alc/ALc.c
+              Alc/ALu.c
+              Alc/alcConfig.c
+              Alc/alcDedicated.c
+              Alc/alcEcho.c
+              Alc/alcModulator.c
+              Alc/alcReverb.c
+              Alc/alcRing.c
+              Alc/alcThread.c
+              Alc/bs2b.c
+              Alc/helpers.c
+              Alc/hrtf.c
+              Alc/mixer.c
+              Alc/panning.c
+              # Default backends, always available
+              Alc/backends/loopback.c
+              Alc/backends/null.c
+)
+
+SET(BACKENDS "")
+SET(HAVE_ALSA       0)
+SET(HAVE_OSS        0)
+SET(HAVE_SOLARIS    0)
+SET(HAVE_SNDIO      0)
+SET(HAVE_DSOUND     0)
+SET(HAVE_MMDEVAPI   0)
+SET(HAVE_WINMM      0)
+SET(HAVE_PORTAUDIO  0)
+SET(HAVE_PULSEAUDIO 0)
+SET(HAVE_COREAUDIO  0)
+SET(HAVE_OPENSL     0)
+SET(HAVE_WAVE       0)
+
+# Check ALSA backend
+IF(ALSA)
+    CHECK_INCLUDE_FILE(alsa/asoundlib.h HAVE_ALSA_ASOUNDLIB_H)
+    IF(HAVE_ALSA_ASOUNDLIB_H)
+        CHECK_SHARED_FUNCTION_EXISTS(snd_pcm_open "alsa/asoundlib.h" asound "" HAVE_LIBASOUND)
+        IF(HAVE_LIBASOUND OR HAVE_DLFCN_H OR WIN32)
+            SET(HAVE_ALSA 1)
+            SET(ALC_OBJS  ${ALC_OBJS} Alc/backends/alsa.c)
+            IF(HAVE_DLFCN_H OR WIN32)
+                SET(BACKENDS  "${BACKENDS} ALSA,")
+            ELSE()
+                SET(BACKENDS  "${BACKENDS} ALSA \(linked\),")
+                SET(EXTRA_LIBS asound ${EXTRA_LIBS})
+            ENDIF()
+        ENDIF()
+    ENDIF()
+ENDIF()
+IF(REQUIRE_ALSA AND NOT HAVE_ALSA)
+    MESSAGE(FATAL_ERROR "Failed to enabled required ALSA backend")
+ENDIF()
+
+# Check OSS backend
+IF(OSS)
+    CHECK_INCLUDE_FILE(sys/soundcard.h HAVE_SYS_SOUNDCARD_H)
+    IF(HAVE_SYS_SOUNDCARD_H)
+        SET(HAVE_OSS 1)
+        SET(ALC_OBJS  ${ALC_OBJS} Alc/backends/oss.c)
+        SET(BACKENDS  "${BACKENDS} OSS,")
+    ENDIF()
+ENDIF()
+IF(REQUIRE_OSS AND NOT HAVE_OSS)
+    MESSAGE(FATAL_ERROR "Failed to enabled required OSS backend")
+ENDIF()
+
+# Check Solaris backend
+IF(SOLARIS)
+    CHECK_INCLUDE_FILE(sys/audioio.h HAVE_SYS_AUDIOIO_H)
+    IF(HAVE_SYS_AUDIOIO_H)
+        SET(HAVE_SOLARIS 1)
+        SET(ALC_OBJS  ${ALC_OBJS} Alc/backends/solaris.c)
+        SET(BACKENDS  "${BACKENDS} Solaris,")
+    ENDIF()
+ENDIF()
+IF(REQUIRE_SOLARIS AND NOT HAVE_SOLARIS)
+    MESSAGE(FATAL_ERROR "Failed to enabled required Solaris backend")
+ENDIF()
+
+# Check SndIO backend
+IF(SNDIO)
+    CHECK_INCLUDE_FILE(sndio.h HAVE_SNDIO_H)
+    IF(HAVE_SNDIO_H)
+        CHECK_SHARED_FUNCTION_EXISTS(sio_open "sndio.h" sndio "" HAVE_LIBSNDIO)
+        IF(HAVE_LIBSNDIO OR HAVE_DLFCN_H OR WIN32)
+            SET(HAVE_SNDIO 1)
+            SET(ALC_OBJS  ${ALC_OBJS} Alc/backends/sndio.c)
+            IF(HAVE_DLFCN_H OR WIN32)
+                SET(BACKENDS  "${BACKENDS} SndIO,")
+            ELSE()
+                SET(BACKENDS  "${BACKENDS} SndIO \(linked\),")
+                SET(EXTRA_LIBS sndio ${EXTRA_LIBS})
+            ENDIF()
+        ENDIF()
+    ENDIF()
+ENDIF()
+IF(REQUIRE_SNDIO AND NOT HAVE_SNDIO)
+    MESSAGE(FATAL_ERROR "Failed to enabled required SndIO backend")
+ENDIF()
+
+# Check for MMDevApi backend
+IF(HAVE_WINDOWS_H)
+    IF(MMDEVAPI)
+        CHECK_INCLUDE_FILE(mmdeviceapi.h HAVE_MMDEVICEAPI_H)
+        IF(HAVE_MMDEVICEAPI_H)
+            SET(HAVE_MMDEVAPI 1)
+            SET(ALC_OBJS  ${ALC_OBJS} Alc/backends/mmdevapi.c)
+
+            SET(BACKENDS  "${BACKENDS} MMDevApi,")
+        ENDIF()
+    ENDIF()
+ENDIF()
+IF(REQUIRE_MMDEVAPI AND NOT HAVE_MMDEVAPI)
+    MESSAGE(FATAL_ERROR "Failed to enabled required MMDevApi backend")
+ENDIF()
+
+# Check DSound/MMSystem backend
+IF(DSOUND)
+    CHECK_INCLUDE_FILE(dsound.h HAVE_DSOUND_H)
+    IF(HAVE_DSOUND_H)
+        CHECK_SHARED_FUNCTION_EXISTS(DirectSoundCreate "dsound.h" dsound "" HAVE_LIBDSOUND)
+        IF(HAVE_LIBDSOUND OR HAVE_DLFCN_H OR WIN32)
+            SET(HAVE_DSOUND 1)
+            SET(ALC_OBJS  ${ALC_OBJS} Alc/backends/dsound.c)
+
+            IF(HAVE_DLFCN_H OR WIN32)
+                SET(BACKENDS  "${BACKENDS} DirectSound,")
+            ELSE()
+                SET(BACKENDS  "${BACKENDS} DirectSound \(linked\),")
+                SET(EXTRA_LIBS dsound ${EXTRA_LIBS})
+            ENDIF()
+        ENDIF()
+    ENDIF()
+ENDIF()
+IF(REQUIRE_DSOUND AND NOT HAVE_DSOUND)
+    MESSAGE(FATAL_ERROR "Failed to enabled required DSound backend")
+ENDIF()
+
+IF(HAVE_WINDOWS_H)
+    IF(WINMM)
+        CHECK_INCLUDE_FILES("windows.h;mmsystem.h" HAVE_MMSYSTEM_H -D_WIN32_WINNT=0x0501)
+        IF(HAVE_MMSYSTEM_H AND HAVE_LIBWINMM)
+            SET(HAVE_WINMM 1)
+            SET(ALC_OBJS  ${ALC_OBJS} Alc/backends/winmm.c)
+            SET(BACKENDS  "${BACKENDS} WinMM,")
+        ENDIF()
+    ENDIF()
+ENDIF()
+IF(REQUIRE_WINMM AND NOT HAVE_WINMM)
+    MESSAGE(FATAL_ERROR "Failed to enabled required WinMM backend")
+ENDIF()
+
+# Check PortAudio backend
+IF(PORTAUDIO)
+    CHECK_INCLUDE_FILE(portaudio.h HAVE_PORTAUDIO_H)
+    IF(HAVE_PORTAUDIO_H)
+        CHECK_SHARED_FUNCTION_EXISTS(Pa_Initialize "portaudio.h" portaudio "" HAVE_LIBPORTAUDIO)
+        IF(HAVE_LIBPORTAUDIO OR HAVE_DLFCN_H OR WIN32)
+            SET(HAVE_PORTAUDIO 1)
+            SET(ALC_OBJS  ${ALC_OBJS} Alc/backends/portaudio.c)
+            IF(HAVE_DLFCN_H OR WIN32)
+                SET(BACKENDS  "${BACKENDS} PortAudio,")
+            ELSE()
+                SET(BACKENDS  "${BACKENDS} PortAudio \(linked\),")
+                SET(EXTRA_LIBS portaudio ${EXTRA_LIBS})
+            ENDIF()
+        ENDIF()
+    ENDIF()
+ENDIF()
+IF(REQUIRE_PORTAUDIO AND NOT HAVE_PORTAUDIO)
+    MESSAGE(FATAL_ERROR "Failed to enabled required PortAudio backend")
+ENDIF()
+
+# Check PulseAudio backend
+IF(PULSEAUDIO)
+    CHECK_INCLUDE_FILE(pulse/pulseaudio.h HAVE_PULSE_PULSEAUDIO_H)
+    IF(HAVE_PULSE_PULSEAUDIO_H)
+        CHECK_SHARED_FUNCTION_EXISTS(pa_context_new "pulse/pulseaudio.h" pulse "" HAVE_LIBPULSE)
+        IF(HAVE_LIBPULSE OR HAVE_DLFCN_H OR WIN32)
+            SET(HAVE_PULSEAUDIO 1)
+            SET(ALC_OBJS  ${ALC_OBJS} Alc/backends/pulseaudio.c)
+            IF(HAVE_DLFCN_H OR WIN32)
+                SET(BACKENDS  "${BACKENDS} PulseAudio,")
+            ELSE()
+                SET(BACKENDS  "${BACKENDS} PulseAudio \(linked\),")
+                SET(EXTRA_LIBS pulse ${EXTRA_LIBS})
+            ENDIF()
+        ENDIF()
+    ENDIF()
+ENDIF()
+IF(REQUIRE_PULSEAUDIO AND NOT HAVE_PULSEAUDIO)
+    MESSAGE(FATAL_ERROR "Failed to enabled required PulseAudio backend")
+ENDIF()
+
+# Check CoreAudio backend
+IF(COREAUDIO)
+    CHECK_INCLUDE_FILE(/System/Library/Frameworks/CoreAudio.framework/Headers/CoreAudio.h HAVE_COREAUDIO_FRAMEWORK)
+    IF(HAVE_COREAUDIO_FRAMEWORK)
+        SET(HAVE_COREAUDIO 1)
+        SET(ALC_OBJS  ${ALC_OBJS} Alc/backends/coreaudio.c)
+        SET(BACKENDS  "${BACKENDS} CoreAudio,")
+        SET(EXTRA_LIBS /System/Library/Frameworks/CoreAudio.framework ${EXTRA_LIBS})
+        SET(EXTRA_LIBS /System/Library/Frameworks/AudioUnit.framework ${EXTRA_LIBS})
+        SET(EXTRA_LIBS /System/Library/Frameworks/ApplicationServices.framework ${EXTRA_LIBS})
+
+        # Some versions of OSX may need the AudioToolbox framework. Add it if
+        # it's found.
+        FIND_LIBRARY(AUDIOTOOLBOX_LIBRARY
+                     NAMES AudioToolbox
+                     PATHS ~/Library/Frameworks
+                           /Library/Frameworks
+                           /System/Library/Frameworks
+                    )
+        IF(AUDIOTOOLBOX_LIBRARY)
+            SET(EXTRA_LIBS ${AUDIOTOOLBOX_LIBRARY} ${EXTRA_LIBS})
+        ENDIF()
+    ENDIF()
+ENDIF()
+IF(REQUIRE_COREAUDIO AND NOT HAVE_COREAUDIO)
+    MESSAGE(FATAL_ERROR "Failed to enabled required CoreAudio backend")
+ENDIF()
+
+# Check for OpenSL (Android) backend
+IF(OPENSL)
+    CHECK_INCLUDE_FILES("SLES/OpenSLES.h;SLES/OpenSLES_Android.h" HAVE_SLES_OPENSLES_ANDROID_H)
+    IF(HAVE_SLES_OPENSLES_ANDROID_H)
+        CHECK_SHARED_FUNCTION_EXISTS(slCreateEngine "SLES/OpenSLES.h" OpenSLES "" HAVE_LIBOPENSLES)
+        IF(HAVE_LIBOPENSLES)
+            SET(HAVE_OPENSL 1)
+            SET(ALC_OBJS  ${ALC_OBJS} Alc/backends/opensl.c)
+            SET(BACKENDS  "${BACKENDS} OpenSL,")
+            SET(EXTRA_LIBS OpenSLES ${EXTRA_LIBS})
+        ENDIF()
+    ENDIF()
+ENDIF()
+IF(REQUIRE_OPENSL AND NOT HAVE_OPENSL)
+    MESSAGE(FATAL_ERROR "Failed to enabled required OpenSL backend")
+ENDIF()
+
+# Optionally enable the Wave Writer backend
+IF(WAVE)
+    SET(HAVE_WAVE 1)
+    SET(ALC_OBJS  ${ALC_OBJS} Alc/backends/wave.c)
+    SET(BACKENDS  "${BACKENDS} WaveFile,")
+ENDIF()
+
+# This is always available
+SET(BACKENDS  "${BACKENDS} Null")
+
+IF(EXAMPLES)
+    # Might be able to use earlier versions, but these definitely work
+    PKG_CHECK_MODULES(FFMPEG libavcodec>=52.123.0 libavformat>=52.111.0)
+ENDIF()
+
+IF(LIBTYPE STREQUAL "STATIC")
+    ADD_DEFINITIONS(-DAL_LIBTYPE_STATIC)
+    SET(PKG_CONFIG_CFLAGS -DAL_LIBTYPE_STATIC ${PKG_CONFIG_CFLAGS})
+ENDIF()
+
+# Needed for openal.pc.in
+SET(prefix ${CMAKE_INSTALL_PREFIX})
+SET(exec_prefix "\${prefix}")
+SET(libdir "\${exec_prefix}/lib${LIB_SUFFIX}")
+SET(bindir "\${exec_prefix}/bin")
+SET(includedir "\${prefix}/include")
+SET(PACKAGE_VERSION "${LIB_VERSION}")
+
+# End configuration
+CONFIGURE_FILE(
+    "${OpenAL_SOURCE_DIR}/config.h.in"
+    "${OpenAL_BINARY_DIR}/config.h")
+CONFIGURE_FILE(
+    "${OpenAL_SOURCE_DIR}/openal.pc.in"
+    "${OpenAL_BINARY_DIR}/openal.pc"
+    @ONLY)
+
+# Build a library
+ADD_LIBRARY(${LIBNAME} ${LIBTYPE} ${OPENAL_OBJS} ${ALC_OBJS})
+SET_TARGET_PROPERTIES(${LIBNAME} PROPERTIES DEFINE_SYMBOL AL_BUILD_LIBRARY
+                                            COMPILE_FLAGS -DAL_ALEXT_PROTOTYPES
+                                            VERSION ${LIB_VERSION}.0
+                                            SOVERSION ${LIB_MAJOR_VERSION})
+IF(WIN32 AND NOT LIBTYPE STREQUAL "STATIC")
+    SET_TARGET_PROPERTIES(${LIBNAME} PROPERTIES PREFIX "")
+ENDIF()
+
+TARGET_LINK_LIBRARIES(${LIBNAME} ${EXTRA_LIBS})
+
+# Add an install target here
+INSTALL(TARGETS ${LIBNAME}
+        RUNTIME DESTINATION bin
+        LIBRARY DESTINATION "lib${LIB_SUFFIX}"
+        ARCHIVE DESTINATION "lib${LIB_SUFFIX}"
+)
+INSTALL(FILES include/AL/al.h
+              include/AL/alc.h
+              include/AL/alext.h
+              include/AL/efx.h
+              include/AL/efx-creative.h
+              include/AL/efx-presets.h
+        DESTINATION include/AL
+)
+INSTALL(FILES "${OpenAL_BINARY_DIR}/openal.pc"
+        DESTINATION "lib${LIB_SUFFIX}/pkgconfig")
+
+
+MESSAGE(STATUS "")
+MESSAGE(STATUS "Building OpenAL with support for the following backends:")
+MESSAGE(STATUS "    ${BACKENDS}")
+MESSAGE(STATUS "")
+
+IF(WIN32)
+    IF(NOT HAVE_DSOUND)
+        MESSAGE(STATUS "WARNING: Building the Windows version without DirectSound output")
+        MESSAGE(STATUS "         This is probably NOT what you want!")
+        MESSAGE(STATUS "")
+    ENDIF()
+ENDIF()
+
+# Install alsoft.conf configuration file
+IF(ALSOFT_CONFIG)
+    INSTALL(FILES alsoftrc.sample
+            DESTINATION /etc/openal
+            RENAME alsoft.conf
+    )
+    MESSAGE(STATUS "Installing sample alsoft.conf")
+    MESSAGE(STATUS "")
+ENDIF()
+
+IF(UTILS)
+    ADD_EXECUTABLE(openal-info utils/openal-info.c)
+    TARGET_LINK_LIBRARIES(openal-info ${LIBNAME})
+
+    ADD_EXECUTABLE(makehrtf utils/makehrtf.c)
+    IF(HAVE_LIBM)
+        TARGET_LINK_LIBRARIES(makehrtf m)
+    ENDIF()
+
+    INSTALL(TARGETS openal-info makehrtf
+            RUNTIME DESTINATION bin
+            LIBRARY DESTINATION "lib${LIB_SUFFIX}"
+            ARCHIVE DESTINATION "lib${LIB_SUFFIX}"
+    )
+    MESSAGE(STATUS "Building utility programs")
+    MESSAGE(STATUS "")
+ENDIF()
+
+IF(EXAMPLES)
+    IF(FFMPEG_FOUND)
+        ADD_EXECUTABLE(alstream examples/alhelpers.c examples/alffmpeg.c examples/alstream.c)
+        TARGET_LINK_LIBRARIES(alstream ${FFMPEG_LIBRARIES} ${LIBNAME})
+        SET_TARGET_PROPERTIES(alstream PROPERTIES COMPILE_FLAGS "${FFMPEG_CFLAGS}")
+        INSTALL(TARGETS alstream
+                RUNTIME DESTINATION bin
+                LIBRARY DESTINATION "lib${LIB_SUFFIX}"
+                ARCHIVE DESTINATION "lib${LIB_SUFFIX}"
+        )
+
+        MESSAGE(STATUS "Building ffmpeg example programs")
+        MESSAGE(STATUS "")
+    ENDIF()
+ENDIF()
+

+ 1 - 0
CMakeLists.txt

@@ -49,6 +49,7 @@ SET(CMAKE_PREFIX_PATH
 MESSAGE(DEBUG " CMAKE_PREFIX_PATH=${CMAKE_PREFIX_PATH}")
 
 # If the following large ugly mess is not present, failures can occur with -G "Unix Makefiles".
+# Even WITH this, you may get "library not found" errors on mingw first run; if so just re-run.
 # FIXME: Shouldn't be necessary if FIND_LIBRARY were working on mingw.
 IF (MINGW)
 LINK_DIRECTORIES(${POLYCODE_RELEASE_DIR}/Framework/Core/Dependencies/lib)