CMakeLists.txt

   1 # CMake build file list for OpenAL
   2
   3 CMAKE_MINIMUM_REQUIRED(VERSION 3.0.2)
   4
   5 PROJECT(OpenAL)
   6
   7 IF(COMMAND CMAKE_POLICY)
   8     CMAKE_POLICY(SET CMP0003 NEW)
   9     CMAKE_POLICY(SET CMP0005 NEW)
  10     IF(POLICY CMP0020)
  11         CMAKE_POLICY(SET CMP0020 NEW)
  12     ENDIF(POLICY CMP0020)
  13     IF(POLICY CMP0042)
  14         CMAKE_POLICY(SET CMP0042 NEW)
  15     ENDIF(POLICY CMP0042)
  16     IF(POLICY CMP0054)
  17         CMAKE_POLICY(SET CMP0054 NEW)
  18     ENDIF(POLICY CMP0054)
  19 ENDIF(COMMAND CMAKE_POLICY)
  20
  21 SET(CMAKE_MODULE_PATH "${OpenAL_SOURCE_DIR}/cmake")
  22
  23 INCLUDE(CheckFunctionExists)
  24 INCLUDE(CheckLibraryExists)
  25 INCLUDE(CheckSharedFunctionExists)
  26 INCLUDE(CheckIncludeFile)
  27 INCLUDE(CheckIncludeFiles)
  28 INCLUDE(CheckSymbolExists)
  29 INCLUDE(CheckCCompilerFlag)
  30 INCLUDE(CheckCXXCompilerFlag)
  31 INCLUDE(CheckCSourceCompiles)
  32 INCLUDE(CheckTypeSize)
  33 include(CheckStructHasMember)
  34 include(CheckFileOffsetBits)
  35 include(GNUInstallDirs)
  36
  37 SET(CMAKE_ALLOW_LOOSE_LOOP_CONSTRUCTS TRUE)
  38
  39
  40 OPTION(ALSOFT_DLOPEN  "Check for the dlopen API for loading optional libs"  ON)
  41
  42 OPTION(ALSOFT_WERROR  "Treat compile warnings as errors"      OFF)
  43
  44 OPTION(ALSOFT_UTILS          "Build and install utility programs"         ON)
  45 OPTION(ALSOFT_NO_CONFIG_UTIL "Disable building the alsoft-config utility" OFF)
  46
  47 OPTION(ALSOFT_EXAMPLES  "Build and install example programs"  ON)
  48 OPTION(ALSOFT_TESTS     "Build and install test programs"     ON)
  49
  50 OPTION(ALSOFT_CONFIG "Install alsoft.conf sample configuration file" ON)
  51 OPTION(ALSOFT_HRTF_DEFS "Install HRTF definition files" ON)
  52 OPTION(ALSOFT_AMBDEC_PRESETS "Install AmbDec preset files" ON)
  53 OPTION(ALSOFT_INSTALL "Install headers and libraries" ON)
  54
  55 if(DEFINED SHARE_INSTALL_DIR)
  56     message(WARNING "SHARE_INSTALL_DIR is deprecated.  Use the variables provided by the GNUInstallDirs module instead")
  57     set(CMAKE_INSTALL_DATADIR "${SHARE_INSTALL_DIR}")
  58 endif()
  59
  60 if(DEFINED LIB_SUFFIX)
  61     message(WARNING "LIB_SUFFIX is deprecated.  Use the variables provided by the GNUInstallDirs module instead")
  62 endif()
  63
  64
  65 SET(CPP_DEFS ) # C pre-process, not C++
  66 SET(INC_PATHS )
  67 SET(C_FLAGS )
  68 SET(LINKER_FLAGS )
  69 SET(EXTRA_LIBS )
  70
  71 IF(WIN32)
  72     SET(CPP_DEFS ${CPP_DEFS} _WIN32 _WIN32_WINNT=0x0502)
  73
  74     OPTION(ALSOFT_BUILD_ROUTER  "Build the router (EXPERIMENTAL; creates OpenAL32.dll and soft_oal.dll)"  OFF)
  75
  76     # This option is mainly for static linking OpenAL Soft into another project
  77     # that already defines the IDs. It is up to that project to ensure all
  78     # required IDs are defined.
  79     OPTION(ALSOFT_NO_UID_DEFS "Do not define GUIDs, IIDs, CLSIDs, or PropertyKeys" OFF)
  80
  81     IF(MINGW)
  82         OPTION(ALSOFT_BUILD_IMPORT_LIB "Build an import .lib using dlltool (requires sed)" ON)
  83         IF(NOT DLLTOOL)
  84             IF(HOST)
  85                 SET(DLLTOOL "${HOST}-dlltool")
  86             ELSE()
  87                 SET(DLLTOOL "dlltool")
  88             ENDIF()
  89         ENDIF()
  90     ENDIF()
  91 ENDIF()
  92
  93
  94 # QNX's gcc do not uses /usr/include and /usr/lib pathes by default
  95 IF ("${CMAKE_C_PLATFORM_ID}" STREQUAL "QNX")
  96     SET(INC_PATHS ${INC_PATHS} /usr/include)
  97     SET(LINKER_FLAGS ${LINKER_FLAGS} -L/usr/lib)
  98 ENDIF()
  99
 100 IF(NOT LIBTYPE)
 101     SET(LIBTYPE SHARED)
 102 ENDIF()
 103
 104 SET(LIB_MAJOR_VERSION "1")
 105 SET(LIB_MINOR_VERSION "18")
 106 SET(LIB_REVISION "2")
 107 SET(LIB_VERSION "${LIB_MAJOR_VERSION}.${LIB_MINOR_VERSION}.${LIB_REVISION}")
 108
 109 SET(EXPORT_DECL "")
 110 SET(ALIGN_DECL "")
 111
 112
 113 CHECK_TYPE_SIZE("long" SIZEOF_LONG)
 114 CHECK_TYPE_SIZE("long long" SIZEOF_LONG_LONG)
 115
 116
 117 CHECK_C_COMPILER_FLAG(-std=c11 HAVE_STD_C11)
 118 IF(HAVE_STD_C11)
 119     SET(CMAKE_C_FLAGS "-std=c11 ${CMAKE_C_FLAGS}")
 120 ELSE()
 121     CHECK_C_COMPILER_FLAG(-std=c99 HAVE_STD_C99)
 122     IF(HAVE_STD_C99)
 123         SET(CMAKE_C_FLAGS "-std=c99 ${CMAKE_C_FLAGS}")
 124     ENDIF()
 125 ENDIF()
 126
 127 CHECK_CXX_COMPILER_FLAG(-std=c++11 HAVE_STD_CXX11)
 128 IF(HAVE_STD_CXX11)
 129     SET(CMAKE_CXX_FLAGS "-std=c++11 ${CMAKE_CXX_FLAGS}")
 130 ENDIF()
 131
 132 if(NOT WIN32)
 133     # Check if _POSIX_C_SOURCE and _XOPEN_SOURCE needs to be set for POSIX functions
 134     CHECK_SYMBOL_EXISTS(posix_memalign stdlib.h HAVE_POSIX_MEMALIGN_DEFAULT)
 135     IF(NOT HAVE_POSIX_MEMALIGN_DEFAULT)
 136         SET(OLD_REQUIRED_FLAGS ${CMAKE_REQUIRED_FLAGS})
 137         SET(CMAKE_REQUIRED_FLAGS "${CMAKE_REQUIRED_FLAGS} -D_POSIX_C_SOURCE=200112L -D_XOPEN_SOURCE=600")
 138         CHECK_SYMBOL_EXISTS(posix_memalign stdlib.h HAVE_POSIX_MEMALIGN_POSIX)
 139         IF(NOT HAVE_POSIX_MEMALIGN_POSIX)
 140             SET(CMAKE_REQUIRED_FLAGS ${OLD_REQUIRED_FLAGS})
 141         ELSE()
 142             SET(CPP_DEFS ${CPP_DEFS} _POSIX_C_SOURCE=200112L _XOPEN_SOURCE=600)
 143         ENDIF()
 144     ENDIF()
 145     UNSET(OLD_REQUIRED_FLAGS)
 146 ENDIF()
 147
 148 # Set defines for large file support
 149 CHECK_FILE_OFFSET_BITS()
 150 IF(_FILE_OFFSET_BITS)
 151     SET(CPP_DEFS ${CPP_DEFS} "_FILE_OFFSET_BITS=${_FILE_OFFSET_BITS}")
 152     SET(CMAKE_REQUIRED_FLAGS "${CMAKE_REQUIRED_FLAGS} -D_FILE_OFFSET_BITS=${_FILE_OFFSET_BITS}")
 153 ENDIF()
 154 SET(CPP_DEFS ${CPP_DEFS} _LARGEFILE_SOURCE _LARGE_FILES)
 155 SET(CMAKE_REQUIRED_FLAGS "${CMAKE_REQUIRED_FLAGS} -D_LARGEFILE_SOURCE -D_LARGE_FILES")
 156
 157 # MSVC may need workarounds for C99 restrict and inline
 158 IF(MSVC)
 159     # TODO: Once we truly require C99, these restrict and inline checks should go
 160     # away.
 161     CHECK_C_SOURCE_COMPILES("int *restrict foo;
 162                              int main() {return 0;}" HAVE_RESTRICT)
 163     IF(NOT HAVE_RESTRICT)
 164         SET(CPP_DEFS ${CPP_DEFS} "restrict=")
 165         SET(CMAKE_REQUIRED_FLAGS "${CMAKE_REQUIRED_FLAGS} -Drestrict=")
 166     ENDIF()
 167
 168     CHECK_C_SOURCE_COMPILES("inline void foo(void) { }
 169                              int main() {return 0;}" HAVE_INLINE)
 170     IF(NOT HAVE_INLINE)
 171         CHECK_C_SOURCE_COMPILES("__inline void foo(void) { }
 172                                  int main() {return 0;}" HAVE___INLINE)
 173         IF(NOT HAVE___INLINE)
 174             MESSAGE(FATAL_ERROR "No inline keyword found, please report!")
 175         ENDIF()
 176
 177         SET(CPP_DEFS ${CPP_DEFS} inline=__inline)
 178         SET(CMAKE_REQUIRED_FLAGS "${CMAKE_REQUIRED_FLAGS} -Dinline=__inline")
 179     ENDIF()
 180 ENDIF()
 181
 182 # Make sure we have C99-style inline semantics with GCC (4.3 or newer).
 183 IF(CMAKE_COMPILER_IS_GNUCC)
 184     SET(CMAKE_C_FLAGS "-fno-gnu89-inline ${CMAKE_C_FLAGS}")
 185
 186     SET(OLD_REQUIRED_FLAGS "${CMAKE_REQUIRED_FLAGS}")
 187     # Force no inlining for the next test.
 188     SET(CMAKE_REQUIRED_FLAGS "${OLD_REQUIRED_FLAGS} -fno-inline")
 189
 190     CHECK_C_SOURCE_COMPILES("extern inline int foo() { return 0; }
 191                              int main() {return foo();}" INLINE_IS_C99)
 192     IF(NOT INLINE_IS_C99)
 193         MESSAGE(FATAL_ERROR "Your compiler does not seem to have C99 inline semantics!
 194                              Please update your compiler for better C99 compliance.")
 195     ENDIF()
 196
 197     SET(CMAKE_REQUIRED_FLAGS "${OLD_REQUIRED_FLAGS}")
 198 ENDIF()
 199
 200 # Check if we have a proper timespec declaration
 201 CHECK_STRUCT_HAS_MEMBER("struct timespec" tv_sec time.h HAVE_STRUCT_TIMESPEC)
 202 IF(HAVE_STRUCT_TIMESPEC)
 203     # Define it here so we don't have to include config.h for it
 204     SET(CPP_DEFS ${CPP_DEFS} HAVE_STRUCT_TIMESPEC)
 205 ENDIF()
 206
 207 # Some systems may need libatomic for C11 atomic functions to work
 208 SET(OLD_REQUIRED_LIBRARIES ${CMAKE_REQUIRED_LIBRARIES})
 209 SET(CMAKE_REQUIRED_LIBRARIES ${OLD_REQUIRED_LIBRARIES} atomic)
 210 CHECK_C_SOURCE_COMPILES("#include <stdatomic.h>
 211 int _Atomic foo = ATOMIC_VAR_INIT(0);
 212 int main()
 213 {
 214     return atomic_fetch_add(&foo, 2);
 215 }"
 216 HAVE_LIBATOMIC)
 217 IF(NOT HAVE_LIBATOMIC)
 218     SET(CMAKE_REQUIRED_LIBRARIES "${OLD_REQUIRED_LIBRARIES}")
 219 ELSE()
 220     SET(EXTRA_LIBS atomic ${EXTRA_LIBS})
 221 ENDIF()
 222 UNSET(OLD_REQUIRED_LIBRARIES)
 223
 224 # Include liblog for Android logging
 225 CHECK_LIBRARY_EXISTS(log __android_log_print "" HAVE_LIBLOG)
 226 IF(HAVE_LIBLOG)
 227     SET(EXTRA_LIBS log ${EXTRA_LIBS})
 228     SET(CMAKE_REQUIRED_LIBRARIES ${CMAKE_REQUIRED_LIBRARIES} log)
 229 ENDIF()
 230
 231 # Check if we have C99 bool
 232 CHECK_C_SOURCE_COMPILES(
 233 "int main(int argc, char *argv[])
 234  {
 235      volatile _Bool ret;
 236      ret = (argc > 1) ? 1 : 0;
 237      return ret ? -1 : 0;
 238  }"
 239 HAVE_C99_BOOL)
 240
 241 # Check if we have C11 static_assert
 242 CHECK_C_SOURCE_COMPILES(
 243 "int main()
 244  {
 245      _Static_assert(sizeof(int) == sizeof(int), \"What\");
 246      return 0;
 247  }"
 248 HAVE_C11_STATIC_ASSERT)
 249
 250 # Check if we have C11 alignas
 251 CHECK_C_SOURCE_COMPILES(
 252 "_Alignas(16) int foo;
 253  int main()
 254  {
 255      return 0;
 256  }"
 257 HAVE_C11_ALIGNAS)
 258
 259 # Check if we have C11 _Atomic
 260 CHECK_C_SOURCE_COMPILES(
 261 "#include <stdatomic.h>
 262  int _Atomic foo = ATOMIC_VAR_INIT(0);
 263  int main()
 264  {
 265      atomic_fetch_add(&foo, 2);
 266      return 0;
 267  }"
 268 HAVE_C11_ATOMIC)
 269
 270 # Add definitions, compiler switches, etc.
 271 INCLUDE_DIRECTORIES("${OpenAL_SOURCE_DIR}/include" "${OpenAL_SOURCE_DIR}/common" "${OpenAL_BINARY_DIR}")
 272
 273 IF(NOT CMAKE_BUILD_TYPE)
 274     SET(CMAKE_BUILD_TYPE RelWithDebInfo CACHE STRING
 275         "Choose the type of build, options are: Debug Release RelWithDebInfo MinSizeRel."
 276         FORCE)
 277 ENDIF()
 278 IF(NOT CMAKE_DEBUG_POSTFIX)
 279     SET(CMAKE_DEBUG_POSTFIX "" CACHE STRING
 280         "Library postfix for debug builds. Normally left blank."
 281         FORCE)
 282 ENDIF()
 283
 284 IF(MSVC)
 285     SET(CPP_DEFS ${CPP_DEFS} _CRT_SECURE_NO_WARNINGS _CRT_NONSTDC_NO_DEPRECATE)
 286     SET(C_FLAGS ${C_FLAGS} /wd4098)
 287
 288     IF(NOT DXSDK_DIR)
 289         STRING(REGEX REPLACE "\\\\" "/" DXSDK_DIR "$ENV{DXSDK_DIR}")
 290     ELSE()
 291         STRING(REGEX REPLACE "\\\\" "/" DXSDK_DIR "${DXSDK_DIR}")
 292     ENDIF()
 293     IF(DXSDK_DIR)
 294         MESSAGE(STATUS "Using DirectX SDK directory: ${DXSDK_DIR}")
 295     ENDIF()
 296
 297     OPTION(FORCE_STATIC_VCRT "Force /MT for static VC runtimes" OFF)
 298     IF(FORCE_STATIC_VCRT)
 299         FOREACH(flag_var
 300                 CMAKE_C_FLAGS CMAKE_C_FLAGS_DEBUG CMAKE_C_FLAGS_RELEASE
 301                 CMAKE_C_FLAGS_MINSIZEREL CMAKE_C_FLAGS_RELWITHDEBINFO)
 302             IF(${flag_var} MATCHES "/MD")
 303                 STRING(REGEX REPLACE "/MD" "/MT" ${flag_var} "${${flag_var}}")
 304             ENDIF()
 305         ENDFOREACH(flag_var)
 306     ENDIF()
 307 ELSE()
 308     SET(C_FLAGS ${C_FLAGS} -Winline -Wall)
 309     CHECK_C_COMPILER_FLAG(-Wextra HAVE_W_EXTRA)
 310     IF(HAVE_W_EXTRA)
 311         SET(C_FLAGS ${C_FLAGS} -Wextra)
 312     ENDIF()
 313
 314     IF(ALSOFT_WERROR)
 315         SET(C_FLAGS ${C_FLAGS} -Werror)
 316     ENDIF()
 317
 318     # We want RelWithDebInfo to actually include debug stuff (define _DEBUG
 319     # instead of NDEBUG)
 320     FOREACH(flag_var  CMAKE_C_FLAGS_RELWITHDEBINFO CMAKE_CXX_FLAGS_RELWITHDEBINFO)
 321         IF(${flag_var} MATCHES "-DNDEBUG")
 322             STRING(REGEX REPLACE "-DNDEBUG" "-D_DEBUG" ${flag_var} "${${flag_var}}")
 323         ENDIF()
 324     ENDFOREACH()
 325
 326     CHECK_C_COMPILER_FLAG(-fno-math-errno HAVE_FNO_MATH_ERRNO)
 327     IF(HAVE_FNO_MATH_ERRNO)
 328         SET(C_FLAGS ${C_FLAGS} -fno-math-errno)
 329     ENDIF()
 330
 331     CHECK_C_SOURCE_COMPILES("int foo() __attribute__((destructor));
 332                              int main() {return 0;}" HAVE_GCC_DESTRUCTOR)
 333
 334     option(ALSOFT_STATIC_LIBGCC "Force -static-libgcc for static GCC runtimes" OFF)
 335     if(ALSOFT_STATIC_LIBGCC)
 336         set(OLD_REQUIRED_LIBRARIES ${CMAKE_REQUIRED_LIBRARIES})
 337         set(CMAKE_REQUIRED_LIBRARIES ${CMAKE_REQUIRED_LIBRARIES} -static-libgcc)
 338         check_c_source_compiles(
 339 "#include <stdlib.h>
 340 int main()
 341 {
 342     return 0;
 343 }"
 344             HAVE_STATIC_LIBGCC_SWITCH
 345         )
 346         if(HAVE_STATIC_LIBGCC_SWITCH)
 347             SET(LINKER_FLAGS ${LINKER_FLAGS} -static-libgcc)
 348         endif()
 349         set(CMAKE_REQUIRED_LIBRARIES ${OLD_REQUIRED_LIBRARIES})
 350         unset(OLD_REQUIRED_LIBRARIES)
 351     endif()
 352 ENDIF()
 353
 354 # Set visibility/export options if available
 355 IF(WIN32)
 356     SET(EXPORT_DECL "__declspec(dllexport)")
 357     IF(NOT MINGW)
 358         SET(ALIGN_DECL "__declspec(align(x))")
 359     ELSE()
 360         SET(ALIGN_DECL "__declspec(aligned(x))")
 361     ENDIF()
 362 ELSE()
 363     SET(OLD_REQUIRED_FLAGS "${CMAKE_REQUIRED_FLAGS}")
 364     # Yes GCC, really don't accept visibility modes you don't support
 365     SET(CMAKE_REQUIRED_FLAGS "${OLD_REQUIRED_FLAGS} -Wattributes -Werror")
 366
 367     CHECK_C_SOURCE_COMPILES("int foo() __attribute__((visibility(\"protected\")));
 368                              int main() {return 0;}" HAVE_GCC_PROTECTED_VISIBILITY)
 369     IF(HAVE_GCC_PROTECTED_VISIBILITY)
 370         SET(EXPORT_DECL "__attribute__((visibility(\"protected\")))")
 371     ELSE()
 372         CHECK_C_SOURCE_COMPILES("int foo() __attribute__((visibility(\"default\")));
 373                                  int main() {return 0;}" HAVE_GCC_DEFAULT_VISIBILITY)
 374         IF(HAVE_GCC_DEFAULT_VISIBILITY)
 375             SET(EXPORT_DECL "__attribute__((visibility(\"default\")))")
 376         ENDIF()
 377     ENDIF()
 378
 379     IF(HAVE_GCC_PROTECTED_VISIBILITY OR HAVE_GCC_DEFAULT_VISIBILITY)
 380         CHECK_C_COMPILER_FLAG(-fvisibility=hidden HAVE_VISIBILITY_HIDDEN_SWITCH)
 381         IF(HAVE_VISIBILITY_HIDDEN_SWITCH)
 382             SET(C_FLAGS ${C_FLAGS} -fvisibility=hidden)
 383         ENDIF()
 384     ENDIF()
 385
 386     CHECK_C_SOURCE_COMPILES("int foo __attribute__((aligned(16)));
 387                              int main() {return 0;}" HAVE_ATTRIBUTE_ALIGNED)
 388     IF(HAVE_ATTRIBUTE_ALIGNED)
 389         SET(ALIGN_DECL "__attribute__((aligned(x)))")
 390     ENDIF()
 391
 392     SET(CMAKE_REQUIRED_FLAGS "${OLD_REQUIRED_FLAGS}")
 393 ENDIF()
 394
 395 CHECK_C_SOURCE_COMPILES("
 396 int main()
 397 {
 398     float *ptr;
 399     ptr = __builtin_assume_aligned(ptr, 16);
 400     return 0;
 401 }" HAVE___BUILTIN_ASSUME_ALIGNED)
 402 IF(HAVE___BUILTIN_ASSUME_ALIGNED)
 403     SET(ASSUME_ALIGNED_DECL "__builtin_assume_aligned(x, y)")
 404 ELSE()
 405     SET(ASSUME_ALIGNED_DECL "x")
 406 ENDIF()
 407
 408 SET(SSE_SWITCH "")
 409 SET(SSE2_SWITCH "")
 410 SET(SSE3_SWITCH "")
 411 SET(SSE4_1_SWITCH "")
 412 SET(FPU_NEON_SWITCH "")
 413
 414 CHECK_C_COMPILER_FLAG(-msse HAVE_MSSE_SWITCH)
 415 IF(HAVE_MSSE_SWITCH)
 416     SET(SSE_SWITCH "-msse")
 417 ENDIF()
 418 CHECK_C_COMPILER_FLAG(-msse2 HAVE_MSSE2_SWITCH)
 419 IF(HAVE_MSSE2_SWITCH)
 420     SET(SSE2_SWITCH "-msse2")
 421 ENDIF()
 422 CHECK_C_COMPILER_FLAG(-msse3 HAVE_MSSE3_SWITCH)
 423 IF(HAVE_MSSE3_SWITCH)
 424     SET(SSE3_SWITCH "-msse3")
 425 ENDIF()
 426 CHECK_C_COMPILER_FLAG(-msse4.1 HAVE_MSSE4_1_SWITCH)
 427 IF(HAVE_MSSE4_1_SWITCH)
 428     SET(SSE4_1_SWITCH "-msse4.1")
 429 ENDIF()
 430 CHECK_C_COMPILER_FLAG(-mfpu=neon HAVE_MFPU_NEON_SWITCH)
 431 IF(HAVE_MFPU_NEON_SWITCH)
 432     SET(FPU_NEON_SWITCH "-mfpu=neon")
 433 ENDIF()
 434
 435 SET(FPMATH_SET "0")
 436 IF(HAVE_MSSE_SWITCH AND CMAKE_SIZEOF_VOID_P MATCHES "4")
 437     OPTION(ALSOFT_ENABLE_SSE_CODEGEN "Enable SSE code generation instead of x87 for 32-bit targets." TRUE)
 438     IF(HAVE_MSSE2_SWITCH)
 439         OPTION(ALSOFT_ENABLE_SSE2_CODEGEN "Enable SSE2 code generation instead of x87 for 32-bit targets." TRUE)
 440     ENDIF()
 441
 442     IF(HAVE_MSSE2_SWITCH AND ALSOFT_ENABLE_SSE2_CODEGEN)
 443         CHECK_C_COMPILER_FLAG("${SSE2_SWITCH} -mfpmath=sse" HAVE_MFPMATH_SSE_2)
 444         IF(ALSOFT_ENABLE_SSE2_CODEGEN AND HAVE_MFPMATH_SSE_2)
 445             SET(C_FLAGS ${C_FLAGS} ${SSE2_SWITCH} -mfpmath=sse)
 446             SET(FPMATH_SET 2)
 447         ENDIF()
 448     ENDIF()
 449     IF(ALSOFT_ENABLE_SSE_CODEGEN AND NOT FPMATH_SET)
 450         CHECK_C_COMPILER_FLAG("${SSE_SWITCH} -mfpmath=sse" HAVE_MFPMATH_SSE)
 451         IF(ALSOFT_ENABLE_SSE_CODEGEN AND HAVE_MFPMATH_SSE)
 452             SET(C_FLAGS ${C_FLAGS} ${SSE_SWITCH} -mfpmath=sse)
 453             SET(FPMATH_SET 1)
 454         ENDIF()
 455     ENDIF()
 456 ENDIF()
 457
 458
 459 CHECK_C_SOURCE_COMPILES("int foo(const char *str, ...) __attribute__((format(printf, 1, 2)));
 460                          int main() {return 0;}" HAVE_GCC_FORMAT)
 461
 462 CHECK_INCLUDE_FILE(stdbool.h HAVE_STDBOOL_H)
 463 CHECK_INCLUDE_FILE(stdalign.h HAVE_STDALIGN_H)
 464 CHECK_INCLUDE_FILE(malloc.h HAVE_MALLOC_H)
 465 CHECK_INCLUDE_FILE(dirent.h HAVE_DIRENT_H)
 466 CHECK_INCLUDE_FILE(strings.h HAVE_STRINGS_H)
 467 CHECK_INCLUDE_FILE(cpuid.h HAVE_CPUID_H)
 468 CHECK_INCLUDE_FILE(intrin.h HAVE_INTRIN_H)
 469 CHECK_INCLUDE_FILE(sys/sysconf.h HAVE_SYS_SYSCONF_H)
 470 CHECK_INCLUDE_FILE(fenv.h HAVE_FENV_H)
 471 CHECK_INCLUDE_FILE(float.h HAVE_FLOAT_H)
 472 CHECK_INCLUDE_FILE(ieeefp.h HAVE_IEEEFP_H)
 473 CHECK_INCLUDE_FILE(guiddef.h HAVE_GUIDDEF_H)
 474 IF(NOT HAVE_GUIDDEF_H)
 475     CHECK_INCLUDE_FILE(initguid.h HAVE_INITGUID_H)
 476 ENDIF()
 477
 478 # Some systems need libm for some of the following math functions to work
 479 SET(MATH_LIB )
 480 CHECK_LIBRARY_EXISTS(m pow "" HAVE_LIBM)
 481 IF(HAVE_LIBM)
 482     SET(MATH_LIB ${MATH_LIB} m)
 483     SET(CMAKE_REQUIRED_LIBRARIES ${CMAKE_REQUIRED_LIBRARIES} m)
 484 ENDIF()
 485
 486 # Check for the dlopen API (for dynamicly loading backend libs)
 487 IF(ALSOFT_DLOPEN)
 488     CHECK_LIBRARY_EXISTS(dl dlopen "" HAVE_LIBDL)
 489     IF(HAVE_LIBDL)
 490         SET(EXTRA_LIBS dl ${EXTRA_LIBS})
 491         SET(CMAKE_REQUIRED_LIBRARIES ${CMAKE_REQUIRED_LIBRARIES} dl)
 492     ENDIF()
 493
 494     CHECK_INCLUDE_FILE(dlfcn.h HAVE_DLFCN_H)
 495 ENDIF()
 496
 497 # Check for a cpuid intrinsic
 498 IF(HAVE_CPUID_H)
 499     CHECK_C_SOURCE_COMPILES("#include <cpuid.h>
 500         int main()
 501         {
 502             unsigned int eax, ebx, ecx, edx;
 503             return __get_cpuid(0, &eax, &ebx, &ecx, &edx);
 504         }" HAVE_GCC_GET_CPUID)
 505 ENDIF()
 506 IF(HAVE_INTRIN_H)
 507     CHECK_C_SOURCE_COMPILES("#include <intrin.h>
 508         int main()
 509         {
 510             int regs[4];
 511             __cpuid(regs, 0);
 512             return regs[0];
 513         }" HAVE_CPUID_INTRINSIC)
 514     CHECK_C_SOURCE_COMPILES("#include <intrin.h>
 515         int main()
 516         {
 517             unsigned long idx = 0;
 518             _BitScanForward64(&idx, 1);
 519             return idx;
 520         }" HAVE_BITSCANFORWARD64_INTRINSIC)
 521     CHECK_C_SOURCE_COMPILES("#include <intrin.h>
 522         int main()
 523         {
 524             unsigned long idx = 0;
 525             _BitScanForward(&idx, 1);
 526             return idx;
 527         }" HAVE_BITSCANFORWARD_INTRINSIC)
 528 ENDIF()
 529
 530 CHECK_SYMBOL_EXISTS(sysconf          unistd.h HAVE_SYSCONF)
 531 CHECK_SYMBOL_EXISTS(aligned_alloc    stdlib.h HAVE_ALIGNED_ALLOC)
 532 CHECK_SYMBOL_EXISTS(posix_memalign   stdlib.h HAVE_POSIX_MEMALIGN)
 533 CHECK_SYMBOL_EXISTS(_aligned_malloc  malloc.h HAVE__ALIGNED_MALLOC)
 534 CHECK_SYMBOL_EXISTS(proc_pidpath     libproc.h HAVE_PROC_PIDPATH)
 535 CHECK_SYMBOL_EXISTS(lrintf math.h HAVE_LRINTF)
 536 CHECK_SYMBOL_EXISTS(modff  math.h HAVE_MODFF)
 537 CHECK_SYMBOL_EXISTS(log2f  math.h HAVE_LOG2F)
 538 CHECK_SYMBOL_EXISTS(cbrtf  math.h HAVE_CBRTF)
 539
 540 IF(HAVE_FLOAT_H)
 541     CHECK_SYMBOL_EXISTS(_controlfp float.h HAVE__CONTROLFP)
 542     CHECK_SYMBOL_EXISTS(__control87_2 float.h HAVE___CONTROL87_2)
 543 ENDIF()
 544
 545 CHECK_FUNCTION_EXISTS(stat HAVE_STAT)
 546 CHECK_FUNCTION_EXISTS(strtof HAVE_STRTOF)
 547 CHECK_FUNCTION_EXISTS(strcasecmp HAVE_STRCASECMP)
 548 IF(NOT HAVE_STRCASECMP)
 549     CHECK_FUNCTION_EXISTS(_stricmp HAVE__STRICMP)
 550     IF(NOT HAVE__STRICMP)
 551         MESSAGE(FATAL_ERROR "No case-insensitive compare function found, please report!")
 552     ENDIF()
 553
 554     SET(CPP_DEFS ${CPP_DEFS} strcasecmp=_stricmp)
 555 ENDIF()
 556
 557 CHECK_FUNCTION_EXISTS(strncasecmp HAVE_STRNCASECMP)
 558 IF(NOT HAVE_STRNCASECMP)
 559     CHECK_FUNCTION_EXISTS(_strnicmp HAVE__STRNICMP)
 560     IF(NOT HAVE__STRNICMP)
 561         MESSAGE(FATAL_ERROR "No case-insensitive size-limitted compare function found, please report!")
 562     ENDIF()
 563
 564     SET(CPP_DEFS ${CPP_DEFS} strncasecmp=_strnicmp)
 565 ENDIF()
 566
 567 CHECK_SYMBOL_EXISTS(strnlen string.h HAVE_STRNLEN)
 568 CHECK_SYMBOL_EXISTS(snprintf stdio.h HAVE_SNPRINTF)
 569 IF(NOT HAVE_SNPRINTF)
 570     CHECK_FUNCTION_EXISTS(_snprintf HAVE__SNPRINTF)
 571     IF(NOT HAVE__SNPRINTF)
 572         MESSAGE(FATAL_ERROR "No snprintf function found, please report!")
 573     ENDIF()
 574
 575     SET(CPP_DEFS ${CPP_DEFS} snprintf=_snprintf)
 576 ENDIF()
 577
 578 CHECK_SYMBOL_EXISTS(isfinite math.h HAVE_ISFINITE)
 579 IF(NOT HAVE_ISFINITE)
 580     CHECK_FUNCTION_EXISTS(finite HAVE_FINITE)
 581     IF(NOT HAVE_FINITE)
 582         CHECK_FUNCTION_EXISTS(_finite HAVE__FINITE)
 583         IF(NOT HAVE__FINITE)
 584             MESSAGE(FATAL_ERROR "No isfinite function found, please report!")
 585         ENDIF()
 586         SET(CPP_DEFS ${CPP_DEFS} isfinite=_finite)
 587     ELSE()
 588         SET(CPP_DEFS ${CPP_DEFS} isfinite=finite)
 589     ENDIF()
 590 ENDIF()
 591
 592 CHECK_SYMBOL_EXISTS(isnan math.h HAVE_ISNAN)
 593 IF(NOT HAVE_ISNAN)
 594     CHECK_FUNCTION_EXISTS(_isnan HAVE__ISNAN)
 595     IF(NOT HAVE__ISNAN)
 596         MESSAGE(FATAL_ERROR "No isnan function found, please report!")
 597     ENDIF()
 598
 599     SET(CPP_DEFS ${CPP_DEFS} isnan=_isnan)
 600 ENDIF()
 601
 602
 603 # Check if we have Windows headers
 604 SET(OLD_REQUIRED_DEFINITIONS ${CMAKE_REQUIRED_DEFINITIONS})
 605 SET(CMAKE_REQUIRED_DEFINITIONS ${CMAKE_REQUIRED_DEFINITIONS} -D_WIN32_WINNT=0x0502)
 606 CHECK_INCLUDE_FILE(windows.h HAVE_WINDOWS_H)
 607 SET(CMAKE_REQUIRED_DEFINITIONS ${OLD_REQUIRED_DEFINITIONS})
 608 UNSET(OLD_REQUIRED_DEFINITIONS)
 609
 610 IF(NOT HAVE_WINDOWS_H)
 611     CHECK_SYMBOL_EXISTS(gettimeofday sys/time.h HAVE_GETTIMEOFDAY)
 612     IF(NOT HAVE_GETTIMEOFDAY)
 613         MESSAGE(FATAL_ERROR "No timing function found!")
 614     ENDIF()
 615
 616     CHECK_SYMBOL_EXISTS(nanosleep time.h HAVE_NANOSLEEP)
 617     IF(NOT HAVE_NANOSLEEP)
 618         MESSAGE(FATAL_ERROR "No sleep function found!")
 619     ENDIF()
 620
 621     # We need pthreads outside of Windows
 622     CHECK_INCLUDE_FILE(pthread.h HAVE_PTHREAD_H)
 623     IF(NOT HAVE_PTHREAD_H)
 624         MESSAGE(FATAL_ERROR "PThreads is required for non-Windows builds!")
 625     ENDIF()
 626     # Some systems need pthread_np.h to get recursive mutexes
 627     CHECK_INCLUDE_FILES("pthread.h;pthread_np.h" HAVE_PTHREAD_NP_H)
 628
 629     CHECK_C_COMPILER_FLAG(-pthread HAVE_PTHREAD)
 630     IF(HAVE_PTHREAD)
 631         SET(CMAKE_REQUIRED_FLAGS "${CMAKE_REQUIRED_FLAGS} -pthread")
 632         SET(C_FLAGS ${C_FLAGS} -pthread)
 633         SET(LINKER_FLAGS ${LINKER_FLAGS} -pthread)
 634     ENDIF()
 635
 636     CHECK_LIBRARY_EXISTS(pthread pthread_create "" HAVE_LIBPTHREAD)
 637     IF(HAVE_LIBPTHREAD)
 638         SET(EXTRA_LIBS pthread ${EXTRA_LIBS})
 639     ENDIF()
 640
 641     CHECK_SYMBOL_EXISTS(pthread_setschedparam pthread.h HAVE_PTHREAD_SETSCHEDPARAM)
 642
 643     IF(HAVE_PTHREAD_NP_H)
 644         CHECK_SYMBOL_EXISTS(pthread_setname_np "pthread.h;pthread_np.h" HAVE_PTHREAD_SETNAME_NP)
 645         IF(NOT HAVE_PTHREAD_SETNAME_NP)
 646             CHECK_SYMBOL_EXISTS(pthread_set_name_np "pthread.h;pthread_np.h" HAVE_PTHREAD_SET_NAME_NP)
 647         ELSE()
 648             CHECK_C_SOURCE_COMPILES("
 649 #include <pthread.h>
 650 #include <pthread_np.h>
 651 int main()
 652 {
 653     pthread_setname_np(\"testname\");
 654     return 0;
 655 }"
 656                 PTHREAD_SETNAME_NP_ONE_PARAM
 657             )
 658             CHECK_C_SOURCE_COMPILES("
 659 #include <pthread.h>
 660 #include <pthread_np.h>
 661 int main()
 662 {
 663     pthread_setname_np(pthread_self(), \"%s\", \"testname\");
 664     return 0;
 665 }"
 666                 PTHREAD_SETNAME_NP_THREE_PARAMS
 667             )
 668         ENDIF()
 669         CHECK_SYMBOL_EXISTS(pthread_mutexattr_setkind_np "pthread.h;pthread_np.h" HAVE_PTHREAD_MUTEXATTR_SETKIND_NP)
 670     ELSE()
 671         CHECK_SYMBOL_EXISTS(pthread_setname_np pthread.h HAVE_PTHREAD_SETNAME_NP)
 672         IF(NOT HAVE_PTHREAD_SETNAME_NP)
 673             CHECK_SYMBOL_EXISTS(pthread_set_name_np pthread.h HAVE_PTHREAD_SET_NAME_NP)
 674         ELSE()
 675             CHECK_C_SOURCE_COMPILES("
 676 #include <pthread.h>
 677 int main()
 678 {
 679     pthread_setname_np(\"testname\");
 680     return 0;
 681 }"
 682                 PTHREAD_SETNAME_NP_ONE_PARAM
 683             )
 684             CHECK_C_SOURCE_COMPILES("
 685 #include <pthread.h>
 686 int main()
 687 {
 688     pthread_setname_np(pthread_self(), \"%s\", \"testname\");
 689     return 0;
 690 }"
 691                 PTHREAD_SETNAME_NP_THREE_PARAMS
 692             )
 693         ENDIF()
 694         CHECK_SYMBOL_EXISTS(pthread_mutexattr_setkind_np pthread.h HAVE_PTHREAD_MUTEXATTR_SETKIND_NP)
 695     ENDIF()
 696
 697     CHECK_SYMBOL_EXISTS(pthread_mutex_timedlock pthread.h HAVE_PTHREAD_MUTEX_TIMEDLOCK)
 698
 699     CHECK_LIBRARY_EXISTS(rt clock_gettime "" HAVE_LIBRT)
 700     IF(HAVE_LIBRT)
 701         SET(EXTRA_LIBS rt ${EXTRA_LIBS})
 702     ENDIF()
 703 ENDIF()
 704
 705 CHECK_SYMBOL_EXISTS(getopt unistd.h HAVE_GETOPT)
 706
 707 # Check for a 64-bit type
 708 CHECK_INCLUDE_FILE(stdint.h HAVE_STDINT_H)
 709 IF(NOT HAVE_STDINT_H)
 710     IF(HAVE_WINDOWS_H)
 711         CHECK_C_SOURCE_COMPILES("#define _WIN32_WINNT 0x0502
 712                                  #include <windows.h>
 713                                  __int64 foo;
 714                                  int main() {return 0;}" HAVE___INT64)
 715     ENDIF()
 716     IF(NOT HAVE___INT64)
 717         IF(NOT SIZEOF_LONG MATCHES "8")
 718             IF(NOT SIZEOF_LONG_LONG MATCHES "8")
 719                 MESSAGE(FATAL_ERROR "No 64-bit types found, please report!")
 720             ENDIF()
 721         ENDIF()
 722     ENDIF()
 723 ENDIF()
 724
 725
 726 SET(COMMON_OBJS
 727     common/alcomplex.c
 728     common/alcomplex.h
 729     common/align.h
 730     common/almalloc.c
 731     common/almalloc.h
 732     common/atomic.c
 733     common/atomic.h
 734     common/bool.h
 735     common/math_defs.h
 736     common/rwlock.c
 737     common/rwlock.h
 738     common/static_assert.h
 739     common/threads.c
 740     common/threads.h
 741     common/uintmap.c
 742     common/uintmap.h
 743 )
 744 SET(OPENAL_OBJS
 745     OpenAL32/Include/bs2b.h
 746     OpenAL32/Include/alMain.h
 747     OpenAL32/Include/alu.h
 748
 749     OpenAL32/Include/alAuxEffectSlot.h
 750     OpenAL32/alAuxEffectSlot.c
 751     OpenAL32/Include/alBuffer.h
 752     OpenAL32/alBuffer.c
 753     OpenAL32/Include/alEffect.h
 754     OpenAL32/alEffect.c
 755     OpenAL32/Include/alError.h
 756     OpenAL32/alError.c
 757     OpenAL32/alExtension.c
 758     OpenAL32/Include/alFilter.h
 759     OpenAL32/alFilter.c
 760     OpenAL32/Include/alListener.h
 761     OpenAL32/alListener.c
 762     OpenAL32/Include/alSource.h
 763     OpenAL32/alSource.c
 764     OpenAL32/alState.c
 765     OpenAL32/event.c
 766     OpenAL32/Include/sample_cvt.h
 767     OpenAL32/sample_cvt.c
 768 )
 769 SET(ALC_OBJS
 770     Alc/ALc.c
 771     Alc/ALu.c
 772     Alc/alconfig.c
 773     Alc/alconfig.h
 774     Alc/bs2b.c
 775     Alc/converter.c
 776     Alc/converter.h
 777     Alc/inprogext.h
 778     Alc/mastering.c
 779     Alc/mastering.h
 780     Alc/ringbuffer.c
 781     Alc/ringbuffer.h
 782     Alc/effects/autowah.c
 783     Alc/effects/chorus.c
 784     Alc/effects/compressor.c
 785     Alc/effects/dedicated.c
 786     Alc/effects/distortion.c
 787     Alc/effects/echo.c
 788     Alc/effects/equalizer.c
 789     Alc/effects/fshifter.c
 790     Alc/effects/modulator.c
 791     Alc/effects/null.c
 792     Alc/effects/pshifter.c
 793     Alc/effects/reverb.c
 794     Alc/filters/defs.h
 795     Alc/filters/filter.c
 796     Alc/filters/nfc.c
 797     Alc/filters/nfc.h
 798     Alc/filters/splitter.c
 799     Alc/filters/splitter.h
 800     Alc/helpers.c
 801     Alc/alstring.h
 802     Alc/compat.h
 803     Alc/cpu_caps.h
 804     Alc/fpu_modes.h
 805     Alc/logging.h
 806     Alc/vector.h
 807     Alc/hrtf.c
 808     Alc/hrtf.h
 809     Alc/uhjfilter.c
 810     Alc/uhjfilter.h
 811     Alc/ambdec.c
 812     Alc/ambdec.h
 813     Alc/bformatdec.c
 814     Alc/bformatdec.h
 815     Alc/panning.c
 816     Alc/polymorphism.h
 817     Alc/mixvoice.c
 818     Alc/mixer/defs.h
 819     Alc/mixer/mixer_c.c
 820 )
 821
 822
 823 SET(CPU_EXTS "Default")
 824 SET(HAVE_SSE        0)
 825 SET(HAVE_SSE2       0)
 826 SET(HAVE_SSE3       0)
 827 SET(HAVE_SSE4_1     0)
 828 SET(HAVE_NEON       0)
 829
 830 SET(HAVE_ALSA       0)
 831 SET(HAVE_OSS        0)
 832 SET(HAVE_SOLARIS    0)
 833 SET(HAVE_SNDIO      0)
 834 SET(HAVE_QSA        0)
 835 SET(HAVE_DSOUND     0)
 836 SET(HAVE_WASAPI     0)
 837 SET(HAVE_WINMM      0)
 838 SET(HAVE_PORTAUDIO  0)
 839 SET(HAVE_PULSEAUDIO 0)
 840 SET(HAVE_COREAUDIO  0)
 841 SET(HAVE_OPENSL     0)
 842 SET(HAVE_WAVE       0)
 843 SET(HAVE_SDL2       0)
 844
 845 # Check for SSE support
 846 OPTION(ALSOFT_REQUIRE_SSE "Require SSE support" OFF)
 847 CHECK_INCLUDE_FILE(xmmintrin.h HAVE_XMMINTRIN_H "${SSE_SWITCH}")
 848 IF(HAVE_XMMINTRIN_H)
 849     OPTION(ALSOFT_CPUEXT_SSE "Enable SSE support" ON)
 850     IF(ALSOFT_CPUEXT_SSE)
 851         IF(ALIGN_DECL OR HAVE_C11_ALIGNAS)
 852             SET(HAVE_SSE 1)
 853             SET(ALC_OBJS  ${ALC_OBJS} Alc/mixer/mixer_sse.c)
 854             IF(SSE_SWITCH)
 855                 SET_SOURCE_FILES_PROPERTIES(Alc/mixer/mixer_sse.c PROPERTIES
 856                                             COMPILE_FLAGS "${SSE_SWITCH}")
 857             ENDIF()
 858             SET(CPU_EXTS "${CPU_EXTS}, SSE")
 859         ENDIF()
 860     ENDIF()
 861 ENDIF()
 862 IF(ALSOFT_REQUIRE_SSE AND NOT HAVE_SSE)
 863     MESSAGE(FATAL_ERROR "Failed to enabled required SSE CPU extensions")
 864 ENDIF()
 865
 866 OPTION(ALSOFT_REQUIRE_SSE2 "Require SSE2 support" OFF)
 867 CHECK_INCLUDE_FILE(emmintrin.h HAVE_EMMINTRIN_H "${SSE2_SWITCH}")
 868 IF(HAVE_EMMINTRIN_H)
 869     OPTION(ALSOFT_CPUEXT_SSE2 "Enable SSE2 support" ON)
 870     IF(HAVE_SSE AND ALSOFT_CPUEXT_SSE2)
 871         IF(ALIGN_DECL OR HAVE_C11_ALIGNAS)
 872             SET(HAVE_SSE2 1)
 873             SET(ALC_OBJS  ${ALC_OBJS} Alc/mixer/mixer_sse2.c)
 874             IF(SSE2_SWITCH)
 875                 SET_SOURCE_FILES_PROPERTIES(Alc/mixer/mixer_sse2.c PROPERTIES
 876                                             COMPILE_FLAGS "${SSE2_SWITCH}")
 877             ENDIF()
 878             SET(CPU_EXTS "${CPU_EXTS}, SSE2")
 879         ENDIF()
 880     ENDIF()
 881 ENDIF()
 882 IF(ALSOFT_REQUIRE_SSE2 AND NOT HAVE_SSE2)
 883     MESSAGE(FATAL_ERROR "Failed to enable required SSE2 CPU extensions")
 884 ENDIF()
 885
 886 OPTION(ALSOFT_REQUIRE_SSE3 "Require SSE3 support" OFF)
 887 CHECK_INCLUDE_FILE(pmmintrin.h HAVE_PMMINTRIN_H "${SSE3_SWITCH}")
 888 IF(HAVE_EMMINTRIN_H)
 889     OPTION(ALSOFT_CPUEXT_SSE3 "Enable SSE3 support" ON)
 890     IF(HAVE_SSE2 AND ALSOFT_CPUEXT_SSE3)
 891         IF(ALIGN_DECL OR HAVE_C11_ALIGNAS)
 892             SET(HAVE_SSE3 1)
 893             SET(ALC_OBJS  ${ALC_OBJS} Alc/mixer/mixer_sse3.c)
 894             IF(SSE2_SWITCH)
 895                 SET_SOURCE_FILES_PROPERTIES(Alc/mixer/mixer_sse3.c PROPERTIES
 896                                             COMPILE_FLAGS "${SSE3_SWITCH}")
 897             ENDIF()
 898             SET(CPU_EXTS "${CPU_EXTS}, SSE3")
 899         ENDIF()
 900     ENDIF()
 901 ENDIF()
 902 IF(ALSOFT_REQUIRE_SSE3 AND NOT HAVE_SSE3)
 903     MESSAGE(FATAL_ERROR "Failed to enable required SSE3 CPU extensions")
 904 ENDIF()
 905
 906 OPTION(ALSOFT_REQUIRE_SSE4_1 "Require SSE4.1 support" OFF)
 907 CHECK_INCLUDE_FILE(smmintrin.h HAVE_SMMINTRIN_H "${SSE4_1_SWITCH}")
 908 IF(HAVE_SMMINTRIN_H)
 909     OPTION(ALSOFT_CPUEXT_SSE4_1 "Enable SSE4.1 support" ON)
 910     IF(HAVE_SSE2 AND ALSOFT_CPUEXT_SSE4_1)
 911         IF(ALIGN_DECL OR HAVE_C11_ALIGNAS)
 912             SET(HAVE_SSE4_1 1)
 913             SET(ALC_OBJS  ${ALC_OBJS} Alc/mixer/mixer_sse41.c)
 914             IF(SSE4_1_SWITCH)
 915                 SET_SOURCE_FILES_PROPERTIES(Alc/mixer/mixer_sse41.c PROPERTIES
 916                                             COMPILE_FLAGS "${SSE4_1_SWITCH}")
 917             ENDIF()
 918             SET(CPU_EXTS "${CPU_EXTS}, SSE4.1")
 919         ENDIF()
 920     ENDIF()
 921 ENDIF()
 922 IF(ALSOFT_REQUIRE_SSE4_1 AND NOT HAVE_SSE4_1)
 923     MESSAGE(FATAL_ERROR "Failed to enable required SSE4.1 CPU extensions")
 924 ENDIF()
 925
 926 # Check for ARM Neon support
 927 OPTION(ALSOFT_REQUIRE_NEON "Require ARM Neon support" OFF)
 928 CHECK_INCLUDE_FILE(arm_neon.h HAVE_ARM_NEON_H ${FPU_NEON_SWITCH})
 929 IF(HAVE_ARM_NEON_H)
 930     OPTION(ALSOFT_CPUEXT_NEON "Enable ARM Neon support" ON)
 931     IF(ALSOFT_CPUEXT_NEON)
 932         SET(HAVE_NEON 1)
 933         SET(ALC_OBJS  ${ALC_OBJS} Alc/mixer/mixer_neon.c)
 934         IF(FPU_NEON_SWITCH)
 935             SET_SOURCE_FILES_PROPERTIES(Alc/mixer/mixer_neon.c PROPERTIES
 936                                         COMPILE_FLAGS "${FPU_NEON_SWITCH}")
 937         ENDIF()
 938         SET(CPU_EXTS "${CPU_EXTS}, Neon")
 939     ENDIF()
 940 ENDIF()
 941 IF(ALSOFT_REQUIRE_NEON AND NOT HAVE_NEON)
 942     MESSAGE(FATAL_ERROR "Failed to enabled required ARM Neon CPU extensions")
 943 ENDIF()
 944
 945
 946 IF(WIN32 OR HAVE_DLFCN_H)
 947     SET(IS_LINKED "")
 948     MACRO(ADD_BACKEND_LIBS _LIBS)
 949     ENDMACRO()
 950 ELSE()
 951     SET(IS_LINKED " (linked)")
 952     MACRO(ADD_BACKEND_LIBS _LIBS)
 953         SET(EXTRA_LIBS ${_LIBS} ${EXTRA_LIBS})
 954     ENDMACRO()
 955 ENDIF()
 956
 957 SET(BACKENDS "")
 958 SET(ALC_OBJS  ${ALC_OBJS}
 959     Alc/backends/base.c
 960     Alc/backends/base.h
 961     # Default backends, always available
 962     Alc/backends/loopback.c
 963     Alc/backends/null.c
 964 )
 965
 966 # Check ALSA backend
 967 OPTION(ALSOFT_REQUIRE_ALSA "Require ALSA backend" OFF)
 968 FIND_PACKAGE(ALSA)
 969 IF(ALSA_FOUND)
 970     OPTION(ALSOFT_BACKEND_ALSA "Enable ALSA backend" ON)
 971     IF(ALSOFT_BACKEND_ALSA)
 972         SET(HAVE_ALSA 1)
 973         SET(BACKENDS  "${BACKENDS} ALSA${IS_LINKED},")
 974         SET(ALC_OBJS  ${ALC_OBJS} Alc/backends/alsa.c)
 975         ADD_BACKEND_LIBS(${ALSA_LIBRARIES})
 976         SET(INC_PATHS ${INC_PATHS} ${ALSA_INCLUDE_DIRS})
 977     ENDIF()
 978 ENDIF()
 979 IF(ALSOFT_REQUIRE_ALSA AND NOT HAVE_ALSA)
 980     MESSAGE(FATAL_ERROR "Failed to enabled required ALSA backend")
 981 ENDIF()
 982
 983 # Check OSS backend
 984 OPTION(ALSOFT_REQUIRE_OSS "Require OSS backend" OFF)
 985 FIND_PACKAGE(OSS)
 986 IF(OSS_FOUND)
 987     OPTION(ALSOFT_BACKEND_OSS "Enable OSS backend" ON)
 988     IF(ALSOFT_BACKEND_OSS)
 989         SET(HAVE_OSS 1)
 990         SET(BACKENDS  "${BACKENDS} OSS,")
 991         SET(ALC_OBJS  ${ALC_OBJS} Alc/backends/oss.c)
 992         IF(OSS_LIBRARIES)
 993             SET(EXTRA_LIBS ${OSS_LIBRARIES} ${EXTRA_LIBS})
 994         ENDIF()
 995         SET(INC_PATHS ${INC_PATHS} ${OSS_INCLUDE_DIRS})
 996     ENDIF()
 997 ENDIF()
 998 IF(ALSOFT_REQUIRE_OSS AND NOT HAVE_OSS)
 999     MESSAGE(FATAL_ERROR "Failed to enabled required OSS backend")
1000 ENDIF()
1001
1002 # Check Solaris backend
1003 OPTION(ALSOFT_REQUIRE_SOLARIS "Require Solaris backend" OFF)
1004 FIND_PACKAGE(AudioIO)
1005 IF(AUDIOIO_FOUND)
1006     OPTION(ALSOFT_BACKEND_SOLARIS "Enable Solaris backend" ON)
1007     IF(ALSOFT_BACKEND_SOLARIS)
1008         SET(HAVE_SOLARIS 1)
1009         SET(BACKENDS  "${BACKENDS} Solaris,")
1010         SET(ALC_OBJS  ${ALC_OBJS} Alc/backends/solaris.c)
1011         SET(INC_PATHS ${INC_PATHS} ${AUDIOIO_INCLUDE_DIRS})
1012     ENDIF()
1013 ENDIF()
1014 IF(ALSOFT_REQUIRE_SOLARIS AND NOT HAVE_SOLARIS)
1015     MESSAGE(FATAL_ERROR "Failed to enabled required Solaris backend")
1016 ENDIF()
1017
1018 # Check SndIO backend
1019 OPTION(ALSOFT_REQUIRE_SNDIO "Require SndIO backend" OFF)
1020 FIND_PACKAGE(SoundIO)
1021 IF(SOUNDIO_FOUND)
1022     OPTION(ALSOFT_BACKEND_SNDIO "Enable SndIO backend" ON)
1023     IF(ALSOFT_BACKEND_SNDIO)
1024         SET(HAVE_SNDIO 1)
1025         SET(BACKENDS  "${BACKENDS} SndIO (linked),")
1026         SET(ALC_OBJS  ${ALC_OBJS} Alc/backends/sndio.c)
1027         SET(EXTRA_LIBS ${SOUNDIO_LIBRARIES} ${EXTRA_LIBS})
1028         SET(INC_PATHS ${INC_PATHS} ${SOUNDIO_INCLUDE_DIRS})
1029     ENDIF()
1030 ENDIF()
1031 IF(ALSOFT_REQUIRE_SNDIO AND NOT HAVE_SNDIO)
1032     MESSAGE(FATAL_ERROR "Failed to enabled required SndIO backend")
1033 ENDIF()
1034
1035 # Check QSA backend
1036 OPTION(ALSOFT_REQUIRE_QSA "Require QSA backend" OFF)
1037 FIND_PACKAGE(QSA)
1038 IF(QSA_FOUND)
1039     OPTION(ALSOFT_BACKEND_QSA "Enable QSA backend" ON)
1040     IF(ALSOFT_BACKEND_QSA)
1041         SET(HAVE_QSA 1)
1042         SET(BACKENDS  "${BACKENDS} QSA (linked),")
1043         SET(ALC_OBJS  ${ALC_OBJS} Alc/backends/qsa.c)
1044         SET(EXTRA_LIBS ${QSA_LIBRARIES} ${EXTRA_LIBS})
1045         SET(INC_PATHS ${INC_PATHS} ${QSA_INCLUDE_DIRS})
1046     ENDIF()
1047 ENDIF()
1048 IF(ALSOFT_REQUIRE_QSA AND NOT HAVE_QSA)
1049     MESSAGE(FATAL_ERROR "Failed to enabled required QSA backend")
1050 ENDIF()
1051
1052 # Check Windows-only backends
1053 OPTION(ALSOFT_REQUIRE_WINMM "Require Windows Multimedia backend" OFF)
1054 OPTION(ALSOFT_REQUIRE_DSOUND "Require DirectSound backend" OFF)
1055 OPTION(ALSOFT_REQUIRE_WASAPI "Require WASAPI backend" OFF)
1056 IF(HAVE_WINDOWS_H)
1057     SET(OLD_REQUIRED_DEFINITIONS ${CMAKE_REQUIRED_DEFINITIONS})
1058     SET(CMAKE_REQUIRED_DEFINITIONS ${CMAKE_REQUIRED_DEFINITIONS} -D_WIN32_WINNT=0x0502)
1059
1060     # Check MMSystem backend
1061     CHECK_INCLUDE_FILES("windows.h;mmsystem.h" HAVE_MMSYSTEM_H)
1062     IF(HAVE_MMSYSTEM_H)
1063         CHECK_SHARED_FUNCTION_EXISTS(waveOutOpen "windows.h;mmsystem.h" winmm "" HAVE_LIBWINMM)
1064         IF(HAVE_LIBWINMM)
1065             OPTION(ALSOFT_BACKEND_WINMM "Enable Windows Multimedia backend" ON)
1066             IF(ALSOFT_BACKEND_WINMM)
1067                 SET(HAVE_WINMM 1)
1068                 SET(BACKENDS  "${BACKENDS} WinMM,")
1069                 SET(ALC_OBJS  ${ALC_OBJS} Alc/backends/winmm.c)
1070                 SET(EXTRA_LIBS winmm ${EXTRA_LIBS})
1071             ENDIF()
1072         ENDIF()
1073     ENDIF()
1074
1075     # Check DSound backend
1076     FIND_PACKAGE(DSound)
1077     IF(DSOUND_FOUND)
1078         OPTION(ALSOFT_BACKEND_DSOUND "Enable DirectSound backend" ON)
1079         IF(ALSOFT_BACKEND_DSOUND)
1080             SET(HAVE_DSOUND 1)
1081             SET(BACKENDS  "${BACKENDS} DirectSound${IS_LINKED},")
1082             SET(ALC_OBJS  ${ALC_OBJS} Alc/backends/dsound.c)
1083             ADD_BACKEND_LIBS(${DSOUND_LIBRARIES})
1084             SET(INC_PATHS ${INC_PATHS} ${DSOUND_INCLUDE_DIRS})
1085         ENDIF()
1086     ENDIF()
1087
1088     # Check for WASAPI backend
1089     CHECK_INCLUDE_FILE(mmdeviceapi.h HAVE_MMDEVICEAPI_H)
1090     IF(HAVE_MMDEVICEAPI_H)
1091         OPTION(ALSOFT_BACKEND_WASAPI "Enable WASAPI backend" ON)
1092         IF(ALSOFT_BACKEND_WASAPI)
1093             SET(HAVE_WASAPI 1)
1094             SET(BACKENDS  "${BACKENDS} WASAPI,")
1095             SET(ALC_OBJS  ${ALC_OBJS} Alc/backends/wasapi.c)
1096         ENDIF()
1097     ENDIF()
1098
1099     SET(CMAKE_REQUIRED_DEFINITIONS ${OLD_REQUIRED_DEFINITIONS})
1100     UNSET(OLD_REQUIRED_DEFINITIONS)
1101 ENDIF()
1102 IF(ALSOFT_REQUIRE_WINMM AND NOT HAVE_WINMM)
1103     MESSAGE(FATAL_ERROR "Failed to enabled required WinMM backend")
1104 ENDIF()
1105 IF(ALSOFT_REQUIRE_DSOUND AND NOT HAVE_DSOUND)
1106     MESSAGE(FATAL_ERROR "Failed to enabled required DSound backend")
1107 ENDIF()
1108 IF(ALSOFT_REQUIRE_WASAPI AND NOT HAVE_WASAPI)
1109     MESSAGE(FATAL_ERROR "Failed to enabled required WASAPI backend")
1110 ENDIF()
1111
1112 # Check PortAudio backend
1113 OPTION(ALSOFT_REQUIRE_PORTAUDIO "Require PortAudio backend" OFF)
1114 FIND_PACKAGE(PortAudio)
1115 IF(PORTAUDIO_FOUND)
1116     OPTION(ALSOFT_BACKEND_PORTAUDIO "Enable PortAudio backend" ON)
1117     IF(ALSOFT_BACKEND_PORTAUDIO)
1118         SET(HAVE_PORTAUDIO 1)
1119         SET(BACKENDS  "${BACKENDS} PortAudio${IS_LINKED},")
1120         SET(ALC_OBJS  ${ALC_OBJS} Alc/backends/portaudio.c)
1121         ADD_BACKEND_LIBS(${PORTAUDIO_LIBRARIES})
1122         SET(INC_PATHS ${INC_PATHS} ${PORTAUDIO_INCLUDE_DIRS})
1123     ENDIF()
1124 ENDIF()
1125 IF(ALSOFT_REQUIRE_PORTAUDIO AND NOT HAVE_PORTAUDIO)
1126     MESSAGE(FATAL_ERROR "Failed to enabled required PortAudio backend")
1127 ENDIF()
1128
1129 # Check PulseAudio backend
1130 OPTION(ALSOFT_REQUIRE_PULSEAUDIO "Require PulseAudio backend" OFF)
1131 FIND_PACKAGE(PulseAudio)
1132 IF(PULSEAUDIO_FOUND)
1133     OPTION(ALSOFT_BACKEND_PULSEAUDIO "Enable PulseAudio backend" ON)
1134     IF(ALSOFT_BACKEND_PULSEAUDIO)
1135         SET(HAVE_PULSEAUDIO 1)
1136         SET(BACKENDS  "${BACKENDS} PulseAudio${IS_LINKED},")
1137         SET(ALC_OBJS  ${ALC_OBJS} Alc/backends/pulseaudio.c)
1138         ADD_BACKEND_LIBS(${PULSEAUDIO_LIBRARIES})
1139         SET(INC_PATHS ${INC_PATHS} ${PULSEAUDIO_INCLUDE_DIRS})
1140     ENDIF()
1141 ENDIF()
1142 IF(ALSOFT_REQUIRE_PULSEAUDIO AND NOT HAVE_PULSEAUDIO)
1143     MESSAGE(FATAL_ERROR "Failed to enabled required PulseAudio backend")
1144 ENDIF()
1145
1146 # Check JACK backend
1147 OPTION(ALSOFT_REQUIRE_JACK "Require JACK backend" OFF)
1148 FIND_PACKAGE(JACK)
1149 IF(JACK_FOUND)
1150     OPTION(ALSOFT_BACKEND_JACK "Enable JACK backend" ON)
1151     IF(ALSOFT_BACKEND_JACK)
1152         SET(HAVE_JACK 1)
1153         SET(BACKENDS  "${BACKENDS} JACK${IS_LINKED},")
1154         SET(ALC_OBJS  ${ALC_OBJS} Alc/backends/jack.c)
1155         ADD_BACKEND_LIBS(${JACK_LIBRARIES})
1156         SET(INC_PATHS ${INC_PATHS} ${JACK_INCLUDE_DIRS})
1157     ENDIF()
1158 ENDIF()
1159 IF(ALSOFT_REQUIRE_JACK AND NOT HAVE_JACK)
1160     MESSAGE(FATAL_ERROR "Failed to enabled required JACK backend")
1161 ENDIF()
1162
1163 # Check CoreAudio backend
1164 OPTION(ALSOFT_REQUIRE_COREAUDIO "Require CoreAudio backend" OFF)
1165 FIND_LIBRARY(COREAUDIO_FRAMEWORK
1166              NAMES CoreAudio
1167              PATHS /System/Library/Frameworks
1168 )
1169 IF(COREAUDIO_FRAMEWORK)
1170     OPTION(ALSOFT_BACKEND_COREAUDIO "Enable CoreAudio backend" ON)
1171     IF(ALSOFT_BACKEND_COREAUDIO)
1172         SET(HAVE_COREAUDIO 1)
1173         SET(ALC_OBJS  ${ALC_OBJS} Alc/backends/coreaudio.c)
1174         SET(BACKENDS  "${BACKENDS} CoreAudio,")
1175         SET(EXTRA_LIBS ${COREAUDIO_FRAMEWORK} ${EXTRA_LIBS})
1176         SET(EXTRA_LIBS /System/Library/Frameworks/AudioUnit.framework ${EXTRA_LIBS})
1177         SET(EXTRA_LIBS /System/Library/Frameworks/ApplicationServices.framework ${EXTRA_LIBS})
1178
1179         # Some versions of OSX may need the AudioToolbox framework. Add it if
1180         # it's found.
1181         FIND_LIBRARY(AUDIOTOOLBOX_LIBRARY
1182                      NAMES AudioToolbox
1183                      PATHS ~/Library/Frameworks
1184                            /Library/Frameworks
1185                            /System/Library/Frameworks
1186                     )
1187         IF(AUDIOTOOLBOX_LIBRARY)
1188             SET(EXTRA_LIBS ${AUDIOTOOLBOX_LIBRARY} ${EXTRA_LIBS})
1189         ENDIF()
1190     ENDIF()
1191 ENDIF()
1192 IF(ALSOFT_REQUIRE_COREAUDIO AND NOT HAVE_COREAUDIO)
1193     MESSAGE(FATAL_ERROR "Failed to enabled required CoreAudio backend")
1194 ENDIF()
1195
1196 # Check for OpenSL (Android) backend
1197 OPTION(ALSOFT_REQUIRE_OPENSL "Require OpenSL backend" OFF)
1198 CHECK_INCLUDE_FILES("SLES/OpenSLES.h;SLES/OpenSLES_Android.h" HAVE_SLES_OPENSLES_ANDROID_H)
1199 IF(HAVE_SLES_OPENSLES_ANDROID_H)
1200     CHECK_SHARED_FUNCTION_EXISTS(slCreateEngine "SLES/OpenSLES.h" OpenSLES "" HAVE_LIBOPENSLES)
1201     IF(HAVE_LIBOPENSLES)
1202         OPTION(ALSOFT_BACKEND_OPENSL "Enable OpenSL backend" ON)
1203         IF(ALSOFT_BACKEND_OPENSL)
1204             SET(HAVE_OPENSL 1)
1205             SET(ALC_OBJS  ${ALC_OBJS} Alc/backends/opensl.c)
1206             SET(BACKENDS  "${BACKENDS} OpenSL,")
1207             SET(EXTRA_LIBS OpenSLES ${EXTRA_LIBS})
1208         ENDIF()
1209     ENDIF()
1210 ENDIF()
1211 IF(ALSOFT_REQUIRE_OPENSL AND NOT HAVE_OPENSL)
1212     MESSAGE(FATAL_ERROR "Failed to enabled required OpenSL backend")
1213 ENDIF()
1214
1215 # Check for SDL2 backend
1216 OPTION(ALSOFT_REQUIRE_SDL2 "Require SDL2 backend" OFF)
1217 FIND_PACKAGE(SDL2)
1218 IF(SDL2_FOUND)
1219     # Off by default, since it adds a runtime dependency
1220     OPTION(ALSOFT_BACKEND_SDL2 "Enable SDL2 backend" OFF)
1221     IF(ALSOFT_BACKEND_SDL2)
1222         SET(HAVE_SDL2 1)
1223         SET(ALC_OBJS  ${ALC_OBJS} Alc/backends/sdl2.c)
1224         SET(BACKENDS  "${BACKENDS} SDL2,")
1225         SET(EXTRA_LIBS ${SDL2_LIBRARY} ${EXTRA_LIBS})
1226         SET(INC_PATHS ${INC_PATHS} ${SDL2_INCLUDE_DIR})
1227     ENDIF()
1228 ENDIF()
1229 IF(ALSOFT_REQUIRE_SDL2 AND NOT SDL2_FOUND)
1230     MESSAGE(FATAL_ERROR "Failed to enabled required SDL2 backend")
1231 ENDIF()
1232
1233 # Optionally enable the Wave Writer backend
1234 OPTION(ALSOFT_BACKEND_WAVE "Enable Wave Writer backend" ON)
1235 IF(ALSOFT_BACKEND_WAVE)
1236     SET(HAVE_WAVE 1)
1237     SET(ALC_OBJS  ${ALC_OBJS} Alc/backends/wave.c)
1238     SET(BACKENDS  "${BACKENDS} WaveFile,")
1239 ENDIF()
1240
1241 # This is always available
1242 SET(BACKENDS  "${BACKENDS} Null")
1243
1244
1245 FIND_PACKAGE(Git)
1246 IF(GIT_FOUND AND EXISTS "${OpenAL_SOURCE_DIR}/.git")
1247     # Get the current working branch and its latest abbreviated commit hash
1248     ADD_CUSTOM_TARGET(build_version
1249         ${CMAKE_COMMAND} -D GIT_EXECUTABLE=${GIT_EXECUTABLE}
1250                          -D LIB_VERSION=${LIB_VERSION}
1251                          -D SRC=${OpenAL_SOURCE_DIR}/version.h.in
1252                          -D DST=${OpenAL_BINARY_DIR}/version.h
1253                          -P ${OpenAL_SOURCE_DIR}/version.cmake
1254         WORKING_DIRECTORY "${OpenAL_SOURCE_DIR}"
1255         VERBATIM
1256     )
1257 ELSE()
1258     SET(GIT_BRANCH "UNKNOWN")
1259     SET(GIT_COMMIT_HASH "unknown")
1260     CONFIGURE_FILE(
1261         "${OpenAL_SOURCE_DIR}/version.h.in"
1262         "${OpenAL_BINARY_DIR}/version.h")
1263 ENDIF()
1264
1265 SET(NATIVE_SRC_DIR  "${OpenAL_SOURCE_DIR}/native-tools/")
1266 SET(NATIVE_BIN_DIR  "${OpenAL_BINARY_DIR}/native-tools/")
1267 FILE(MAKE_DIRECTORY "${NATIVE_BIN_DIR}")
1268
1269 SET(BIN2H_COMMAND  "${NATIVE_BIN_DIR}bin2h")
1270 SET(BSINCGEN_COMMAND  "${NATIVE_BIN_DIR}bsincgen")
1271 ADD_CUSTOM_COMMAND(OUTPUT "${BIN2H_COMMAND}" "${BSINCGEN_COMMAND}"
1272     COMMAND ${CMAKE_COMMAND} -G "${CMAKE_GENERATOR}" "${NATIVE_SRC_DIR}"
1273     COMMAND ${CMAKE_COMMAND} -E remove "${BIN2H_COMMAND}" "${BSINCGEN_COMMAND}"
1274     COMMAND ${CMAKE_COMMAND} --build . --config "Release"
1275     WORKING_DIRECTORY "${NATIVE_BIN_DIR}"
1276     DEPENDS "${NATIVE_SRC_DIR}CMakeLists.txt"
1277     IMPLICIT_DEPENDS C "${NATIVE_SRC_DIR}bin2h.c"
1278                      C "${NATIVE_SRC_DIR}bsincgen.c"
1279     VERBATIM
1280 )
1281 ADD_CUSTOM_TARGET(native-tools
1282     DEPENDS "${BIN2H_COMMAND}" "${BSINCGEN_COMMAND}"
1283     VERBATIM
1284 )
1285
1286 option(ALSOFT_EMBED_HRTF_DATA "Embed the HRTF data files (increases library footprint)" OFF)
1287 if(ALSOFT_EMBED_HRTF_DATA)
1288     MACRO(make_hrtf_header FILENAME VARNAME)
1289         SET(infile  "${OpenAL_SOURCE_DIR}/hrtf/${FILENAME}")
1290         SET(outfile  "${OpenAL_BINARY_DIR}/${FILENAME}.h")
1291
1292         ADD_CUSTOM_COMMAND(OUTPUT "${outfile}"
1293             COMMAND "${BIN2H_COMMAND}" "${infile}" "${outfile}" ${VARNAME}
1294             DEPENDS native-tools "${infile}"
1295             VERBATIM
1296         )
1297         SET(ALC_OBJS  ${ALC_OBJS} "${outfile}")
1298     ENDMACRO()
1299
1300     make_hrtf_header(default-44100.mhr "hrtf_default_44100")
1301     make_hrtf_header(default-48000.mhr "hrtf_default_48000")
1302 endif()
1303
1304 ADD_CUSTOM_COMMAND(OUTPUT "${OpenAL_BINARY_DIR}/bsinc_inc.h"
1305     COMMAND "${BSINCGEN_COMMAND}" "${OpenAL_BINARY_DIR}/bsinc_inc.h"
1306     DEPENDS native-tools "${NATIVE_SRC_DIR}bsincgen.c"
1307     VERBATIM
1308 )
1309 SET(ALC_OBJS  ${ALC_OBJS} "${OpenAL_BINARY_DIR}/bsinc_inc.h")
1310
1311
1312 IF(ALSOFT_UTILS AND NOT ALSOFT_NO_CONFIG_UTIL)
1313     add_subdirectory(utils/alsoft-config)
1314 ENDIF()
1315 IF(ALSOFT_EXAMPLES)
1316     IF(NOT SDL2_FOUND)
1317         FIND_PACKAGE(SDL2)
1318     ENDIF()
1319     IF(SDL2_FOUND)
1320         FIND_PACKAGE(SDL_sound)
1321         FIND_PACKAGE(FFmpeg COMPONENTS AVFORMAT AVCODEC AVUTIL SWSCALE SWRESAMPLE)
1322     ENDIF()
1323 ENDIF()
1324
1325 IF(NOT WIN32)
1326     SET(LIBNAME "openal")
1327 ELSE()
1328     SET(LIBNAME "OpenAL32")
1329 ENDIF()
1330
1331 # Needed for openal.pc.in
1332 SET(prefix ${CMAKE_INSTALL_PREFIX})
1333 SET(exec_prefix "\${prefix}")
1334 SET(libdir "\${exec_prefix}/${CMAKE_INSTALL_LIBDIR}")
1335 SET(bindir "\${exec_prefix}/${CMAKE_INSTALL_BINDIR}")
1336 SET(includedir "\${prefix}/${CMAKE_INSTALL_INCLUDEDIR}")
1337 SET(PACKAGE_VERSION "${LIB_VERSION}")
1338 SET(PKG_CONFIG_CFLAGS )
1339 SET(PKG_CONFIG_PRIVATE_LIBS )
1340 IF(LIBTYPE STREQUAL "STATIC")
1341     SET(PKG_CONFIG_CFLAGS -DAL_LIBTYPE_STATIC)
1342     FOREACH(FLAG  ${LINKER_FLAGS} ${EXTRA_LIBS} ${MATH_LIB})
1343         # If this is already a linker flag, or is a full path+file, add it
1344         # as-is. Otherwise, it's a name intended to be dressed as -lname.
1345         IF(FLAG MATCHES "^-.*" OR EXISTS "${FLAG}")
1346             SET(PKG_CONFIG_PRIVATE_LIBS "${PKG_CONFIG_PRIVATE_LIBS} ${FLAG}")
1347         ELSE()
1348             SET(PKG_CONFIG_PRIVATE_LIBS "${PKG_CONFIG_PRIVATE_LIBS} -l${FLAG}")
1349         ENDIF()
1350     ENDFOREACH()
1351 ENDIF()
1352
1353 # End configuration
1354 CONFIGURE_FILE(
1355     "${OpenAL_SOURCE_DIR}/config.h.in"
1356     "${OpenAL_BINARY_DIR}/config.h")
1357 CONFIGURE_FILE(
1358     "${OpenAL_SOURCE_DIR}/openal.pc.in"
1359     "${OpenAL_BINARY_DIR}/openal.pc"
1360     @ONLY)
1361
1362
1363 # Add a static library with common functions used by multiple targets
1364 ADD_LIBRARY(common STATIC ${COMMON_OBJS})
1365 TARGET_COMPILE_DEFINITIONS(common PRIVATE ${CPP_DEFS})
1366 TARGET_COMPILE_OPTIONS(common PRIVATE ${C_FLAGS})
1367
1368
1369 UNSET(HAS_ROUTER)
1370 SET(IMPL_TARGET OpenAL)
1371 SET(COMMON_LIB )
1372 SET(SUBSYS_FLAG )
1373
1374 # Build main library
1375 IF(LIBTYPE STREQUAL "STATIC")
1376     SET(CPP_DEFS ${CPP_DEFS} AL_LIBTYPE_STATIC)
1377     IF(WIN32 AND ALSOFT_NO_UID_DEFS)
1378         SET(CPP_DEFS ${CPP_DEFS} AL_NO_UID_DEFS)
1379     ENDIF()
1380     ADD_LIBRARY(OpenAL STATIC ${COMMON_OBJS} ${OPENAL_OBJS} ${ALC_OBJS})
1381 ELSE()
1382     # Make sure to compile the common code with PIC, since it'll be linked into
1383     # shared libs that needs it.
1384     SET_PROPERTY(TARGET common PROPERTY POSITION_INDEPENDENT_CODE TRUE)
1385     SET(COMMON_LIB common)
1386
1387     IF(WIN32)
1388         IF(MSVC)
1389             SET(SUBSYS_FLAG ${SUBSYS_FLAG} "/SUBSYSTEM:WINDOWS")
1390         ELSEIF(CMAKE_COMPILER_IS_GNUCC)
1391             SET(SUBSYS_FLAG ${SUBSYS_FLAG} "-mwindows")
1392         ENDIF()
1393     ENDIF()
1394
1395     IF(WIN32 AND ALSOFT_BUILD_ROUTER)
1396         ADD_LIBRARY(OpenAL SHARED router/router.c router/router.h router/alc.c router/al.c)
1397         TARGET_COMPILE_DEFINITIONS(OpenAL
1398             PRIVATE AL_BUILD_LIBRARY AL_ALEXT_PROTOTYPES ${CPP_DEFS})
1399         TARGET_COMPILE_OPTIONS(OpenAL PRIVATE ${C_FLAGS})
1400         TARGET_LINK_LIBRARIES(OpenAL PRIVATE ${LINKER_FLAGS} ${COMMON_LIB})
1401         SET_TARGET_PROPERTIES(OpenAL PROPERTIES PREFIX "")
1402         SET_TARGET_PROPERTIES(OpenAL PROPERTIES OUTPUT_NAME ${LIBNAME})
1403         IF(TARGET build_version)
1404             ADD_DEPENDENCIES(OpenAL build_version)
1405         ENDIF()
1406         SET(HAS_ROUTER 1)
1407
1408         SET(LIBNAME "soft_oal")
1409         SET(IMPL_TARGET soft_oal)
1410     ENDIF()
1411
1412     ADD_LIBRARY(${IMPL_TARGET} SHARED ${OPENAL_OBJS} ${ALC_OBJS})
1413     IF(WIN32)
1414         SET_TARGET_PROPERTIES(${IMPL_TARGET} PROPERTIES PREFIX "")
1415     ENDIF()
1416 ENDIF()
1417 SET_TARGET_PROPERTIES(${IMPL_TARGET} PROPERTIES OUTPUT_NAME ${LIBNAME}
1418     VERSION ${LIB_VERSION}
1419     SOVERSION ${LIB_MAJOR_VERSION}
1420 )
1421 TARGET_COMPILE_DEFINITIONS(${IMPL_TARGET}
1422     PRIVATE AL_BUILD_LIBRARY AL_ALEXT_PROTOTYPES ${CPP_DEFS})
1423 TARGET_INCLUDE_DIRECTORIES(${IMPL_TARGET}
1424     PRIVATE "${OpenAL_SOURCE_DIR}/OpenAL32/Include" "${OpenAL_SOURCE_DIR}/Alc" ${INC_PATHS})
1425 TARGET_COMPILE_OPTIONS(${IMPL_TARGET} PRIVATE ${C_FLAGS})
1426 TARGET_LINK_LIBRARIES(${IMPL_TARGET}
1427     PRIVATE ${LINKER_FLAGS} ${COMMON_LIB} ${EXTRA_LIBS} ${MATH_LIB})
1428 IF(TARGET build_version)
1429     ADD_DEPENDENCIES(${IMPL_TARGET} build_version)
1430 ENDIF()
1431
1432 IF(WIN32 AND MINGW AND ALSOFT_BUILD_IMPORT_LIB AND NOT LIBTYPE STREQUAL "STATIC")
1433     FIND_PROGRAM(SED_EXECUTABLE NAMES sed DOC "sed executable")
1434     FIND_PROGRAM(DLLTOOL_EXECUTABLE NAMES "${DLLTOOL}" DOC "dlltool executable")
1435     IF(NOT SED_EXECUTABLE OR NOT DLLTOOL_EXECUTABLE)
1436         MESSAGE(STATUS "")
1437         IF(NOT SED_EXECUTABLE)
1438             MESSAGE(STATUS "WARNING: Cannot find sed, disabling .def/.lib generation")
1439         ENDIF()
1440         IF(NOT DLLTOOL_EXECUTABLE)
1441             MESSAGE(STATUS "WARNING: Cannot find dlltool, disabling .def/.lib generation")
1442         ENDIF()
1443     ELSE()
1444         SET_PROPERTY(TARGET OpenAL APPEND_STRING PROPERTY LINK_FLAGS
1445                         " -Wl,--output-def,OpenAL32.def")
1446         ADD_CUSTOM_COMMAND(TARGET OpenAL POST_BUILD
1447             COMMAND "${SED_EXECUTABLE}" -i -e "s/ @[^ ]*//" OpenAL32.def
1448             COMMAND "${DLLTOOL_EXECUTABLE}" -d OpenAL32.def -l OpenAL32.lib -D OpenAL32.dll
1449             COMMENT "Stripping ordinals from OpenAL32.def and generating OpenAL32.lib..."
1450             VERBATIM
1451         )
1452     ENDIF()
1453 ENDIF()
1454
1455 IF(ALSOFT_INSTALL)
1456     INSTALL(TARGETS OpenAL EXPORT OpenAL
1457             RUNTIME DESTINATION ${CMAKE_INSTALL_BINDIR}
1458             LIBRARY DESTINATION ${CMAKE_INSTALL_LIBDIR}
1459             ARCHIVE DESTINATION ${CMAKE_INSTALL_LIBDIR}
1460             INCLUDES DESTINATION ${CMAKE_INSTALL_INCLUDEDIR} ${CMAKE_INSTALL_INCLUDEDIR}/AL
1461     )
1462     EXPORT(TARGETS OpenAL
1463            NAMESPACE OpenAL::
1464            FILE OpenALConfig.cmake)
1465     INSTALL(EXPORT OpenAL
1466             DESTINATION ${CMAKE_INSTALL_LIBDIR}/cmake/OpenAL
1467             NAMESPACE OpenAL::
1468             FILE OpenALConfig.cmake)
1469     INSTALL(FILES include/AL/al.h
1470                   include/AL/alc.h
1471                   include/AL/alext.h
1472                   include/AL/efx.h
1473                   include/AL/efx-creative.h
1474                   include/AL/efx-presets.h
1475             DESTINATION ${CMAKE_INSTALL_INCLUDEDIR}/AL
1476     )
1477     INSTALL(FILES "${OpenAL_BINARY_DIR}/openal.pc"
1478             DESTINATION "${CMAKE_INSTALL_LIBDIR}/pkgconfig")
1479     IF(TARGET soft_oal)
1480         INSTALL(TARGETS soft_oal
1481                 RUNTIME DESTINATION ${CMAKE_INSTALL_BINDIR}
1482         )
1483     ENDIF()
1484 ENDIF()
1485
1486
1487 if(HAS_ROUTER)
1488     message(STATUS "")
1489     message(STATUS "Building DLL router")
1490 endif()
1491
1492 MESSAGE(STATUS "")
1493 MESSAGE(STATUS "Building OpenAL with support for the following backends:")
1494 MESSAGE(STATUS "    ${BACKENDS}")
1495 MESSAGE(STATUS "")
1496 MESSAGE(STATUS "Building with support for CPU extensions:")
1497 MESSAGE(STATUS "    ${CPU_EXTS}")
1498 MESSAGE(STATUS "")
1499 IF(FPMATH_SET)
1500     MESSAGE(STATUS "Building with SSE${FPMATH_SET} codegen")
1501     MESSAGE(STATUS "")
1502 ENDIF()
1503
1504 IF(WIN32)
1505     IF(NOT HAVE_DSOUND)
1506         MESSAGE(STATUS "WARNING: Building the Windows version without DirectSound output")
1507         MESSAGE(STATUS "         This is probably NOT what you want!")
1508         MESSAGE(STATUS "")
1509     ENDIF()
1510 ENDIF()
1511
1512 if(ALSOFT_EMBED_HRTF_DATA)
1513     message(STATUS "Embedding HRTF datasets")
1514     message(STATUS "")
1515 endif()
1516
1517 # Install alsoft.conf configuration file
1518 IF(ALSOFT_CONFIG)
1519     INSTALL(FILES alsoftrc.sample
1520             DESTINATION ${CMAKE_INSTALL_DATADIR}/openal
1521     )
1522     MESSAGE(STATUS "Installing sample configuration")
1523     MESSAGE(STATUS "")
1524 ENDIF()
1525
1526 # Install HRTF definitions
1527 IF(ALSOFT_HRTF_DEFS)
1528     INSTALL(FILES hrtf/default-44100.mhr
1529                   hrtf/default-48000.mhr
1530             DESTINATION ${CMAKE_INSTALL_DATADIR}/openal/hrtf
1531     )
1532     MESSAGE(STATUS "Installing HRTF definitions")
1533     MESSAGE(STATUS "")
1534 ENDIF()
1535
1536 # Install AmbDec presets
1537 IF(ALSOFT_AMBDEC_PRESETS)
1538     INSTALL(FILES presets/3D7.1.ambdec
1539                   presets/hexagon.ambdec
1540                   presets/itu5.1.ambdec
1541                   presets/itu5.1-nocenter.ambdec
1542                   presets/rectangle.ambdec
1543                   presets/square.ambdec
1544                   presets/presets.txt
1545             DESTINATION ${CMAKE_INSTALL_DATADIR}/openal/presets
1546     )
1547     MESSAGE(STATUS "Installing AmbDec presets")
1548     MESSAGE(STATUS "")
1549 ENDIF()
1550
1551 IF(ALSOFT_UTILS)
1552     ADD_EXECUTABLE(openal-info utils/openal-info.c)
1553     TARGET_COMPILE_OPTIONS(openal-info PRIVATE ${C_FLAGS})
1554     TARGET_LINK_LIBRARIES(openal-info PRIVATE ${LINKER_FLAGS} OpenAL)
1555
1556     SET(MAKEHRTF_SRCS  utils/makehrtf.c)
1557     IF(NOT HAVE_GETOPT)
1558         SET(MAKEHRTF_SRCS  ${MAKEHRTF_SRCS} utils/getopt.c utils/getopt.h)
1559     ENDIF()
1560     ADD_EXECUTABLE(makehrtf ${MAKEHRTF_SRCS})
1561     TARGET_COMPILE_DEFINITIONS(makehrtf PRIVATE ${CPP_DEFS})
1562     TARGET_COMPILE_OPTIONS(makehrtf PRIVATE ${C_FLAGS})
1563     IF(HAVE_LIBM)
1564         TARGET_LINK_LIBRARIES(makehrtf PRIVATE ${LINKER_FLAGS} m)
1565     ENDIF()
1566
1567     IF(ALSOFT_INSTALL)
1568         INSTALL(TARGETS openal-info makehrtf
1569                 RUNTIME DESTINATION ${CMAKE_INSTALL_BINDIR}
1570                 LIBRARY DESTINATION ${CMAKE_INSTALL_LIBDIR}
1571                 ARCHIVE DESTINATION ${CMAKE_INSTALL_LIBDIR}
1572         )
1573     ENDIF()
1574
1575     MESSAGE(STATUS "Building utility programs")
1576     IF(TARGET alsoft-config)
1577         MESSAGE(STATUS "Building configuration program")
1578     ENDIF()
1579     MESSAGE(STATUS "")
1580 ENDIF()
1581
1582 IF(ALSOFT_TESTS)
1583     SET(TEST_COMMON_OBJS  examples/common/alhelpers.c)
1584
1585     ADD_EXECUTABLE(altonegen examples/altonegen.c ${TEST_COMMON_OBJS})
1586     TARGET_COMPILE_DEFINITIONS(altonegen PRIVATE ${CPP_DEFS})
1587     TARGET_COMPILE_OPTIONS(altonegen PRIVATE ${C_FLAGS})
1588     TARGET_LINK_LIBRARIES(altonegen PRIVATE ${LINKER_FLAGS} common OpenAL ${MATH_LIB})
1589
1590     IF(ALSOFT_INSTALL)
1591         INSTALL(TARGETS altonegen
1592                 RUNTIME DESTINATION ${CMAKE_INSTALL_BINDIR}
1593                 LIBRARY DESTINATION ${CMAKE_INSTALL_LIBDIR}
1594                 ARCHIVE DESTINATION ${CMAKE_INSTALL_LIBDIR}
1595         )
1596     ENDIF()
1597
1598     MESSAGE(STATUS "Building test programs")
1599     MESSAGE(STATUS "")
1600 ENDIF()
1601
1602 IF(ALSOFT_EXAMPLES)
1603     ADD_EXECUTABLE(alrecord examples/alrecord.c)
1604     TARGET_COMPILE_DEFINITIONS(alrecord PRIVATE ${CPP_DEFS})
1605     TARGET_COMPILE_OPTIONS(alrecord PRIVATE ${C_FLAGS})
1606     TARGET_LINK_LIBRARIES(alrecord PRIVATE ${LINKER_FLAGS} common OpenAL)
1607
1608     IF(ALSOFT_INSTALL)
1609         INSTALL(TARGETS alrecord
1610                 RUNTIME DESTINATION ${CMAKE_INSTALL_BINDIR}
1611                 LIBRARY DESTINATION ${CMAKE_INSTALL_LIBDIR}
1612                 ARCHIVE DESTINATION ${CMAKE_INSTALL_LIBDIR}
1613         )
1614     ENDIF()
1615
1616     MESSAGE(STATUS "Building example programs")
1617
1618     IF(SDL2_FOUND)
1619         IF(SDL_SOUND_FOUND)
1620             # Add a static library with common functions used by multiple targets
1621             ADD_LIBRARY(ex-common STATIC examples/common/alhelpers.c)
1622             TARGET_COMPILE_DEFINITIONS(ex-common PRIVATE ${CPP_DEFS})
1623             TARGET_COMPILE_OPTIONS(ex-common PRIVATE ${C_FLAGS})
1624
1625             ADD_EXECUTABLE(alplay examples/alplay.c)
1626             TARGET_COMPILE_DEFINITIONS(alplay PRIVATE ${CPP_DEFS})
1627             TARGET_INCLUDE_DIRECTORIES(alplay
1628                 PRIVATE ${SDL2_INCLUDE_DIR} ${SDL_SOUND_INCLUDE_DIR})
1629             TARGET_COMPILE_OPTIONS(alplay PRIVATE ${C_FLAGS})
1630             TARGET_LINK_LIBRARIES(alplay
1631                 PRIVATE ${LINKER_FLAGS} ${SDL_SOUND_LIBRARIES} ${SDL2_LIBRARY} ex-common common
1632                         OpenAL)
1633
1634             ADD_EXECUTABLE(alstream examples/alstream.c)
1635             TARGET_COMPILE_DEFINITIONS(alstream PRIVATE ${CPP_DEFS})
1636             TARGET_INCLUDE_DIRECTORIES(alstream
1637                 PRIVATE ${SDL2_INCLUDE_DIR} ${SDL_SOUND_INCLUDE_DIR})
1638             TARGET_COMPILE_OPTIONS(alstream PRIVATE ${C_FLAGS})
1639             TARGET_LINK_LIBRARIES(alstream
1640                 PRIVATE ${LINKER_FLAGS} ${SDL_SOUND_LIBRARIES} ${SDL2_LIBRARY} ex-common common
1641                         OpenAL)
1642
1643             ADD_EXECUTABLE(alreverb examples/alreverb.c)
1644             TARGET_COMPILE_DEFINITIONS(alreverb PRIVATE ${CPP_DEFS})
1645             TARGET_INCLUDE_DIRECTORIES(alreverb
1646                 PRIVATE ${SDL2_INCLUDE_DIR} ${SDL_SOUND_INCLUDE_DIR})
1647             TARGET_COMPILE_OPTIONS(alreverb PRIVATE ${C_FLAGS})
1648             TARGET_LINK_LIBRARIES(alreverb
1649                 PRIVATE ${LINKER_FLAGS} ${SDL_SOUND_LIBRARIES} ${SDL2_LIBRARY} ex-common common
1650                         OpenAL)
1651
1652             ADD_EXECUTABLE(almultireverb examples/almultireverb.c)
1653             TARGET_COMPILE_DEFINITIONS(almultireverb PRIVATE ${CPP_DEFS})
1654             TARGET_INCLUDE_DIRECTORIES(almultireverb
1655                 PRIVATE ${SDL2_INCLUDE_DIR} ${SDL_SOUND_INCLUDE_DIR})
1656             TARGET_COMPILE_OPTIONS(almultireverb PRIVATE ${C_FLAGS})
1657             TARGET_LINK_LIBRARIES(almultireverb
1658                 PRIVATE ${LINKER_FLAGS} ${SDL_SOUND_LIBRARIES} ${SDL2_LIBRARY} ex-common common
1659                         OpenAL ${MATH_LIB})
1660
1661             ADD_EXECUTABLE(allatency examples/allatency.c)
1662             TARGET_COMPILE_DEFINITIONS(allatency PRIVATE ${CPP_DEFS})
1663             TARGET_INCLUDE_DIRECTORIES(allatency
1664                 PRIVATE ${SDL2_INCLUDE_DIR} ${SDL_SOUND_INCLUDE_DIR})
1665             TARGET_COMPILE_OPTIONS(allatency PRIVATE ${C_FLAGS})
1666             TARGET_LINK_LIBRARIES(allatency
1667                 PRIVATE ${LINKER_FLAGS} ${SDL_SOUND_LIBRARIES} ${SDL2_LIBRARY} ex-common common
1668                         OpenAL)
1669
1670             ADD_EXECUTABLE(alloopback examples/alloopback.c)
1671             TARGET_COMPILE_DEFINITIONS(alloopback PRIVATE ${CPP_DEFS})
1672             TARGET_INCLUDE_DIRECTORIES(alloopback
1673                 PRIVATE ${SDL2_INCLUDE_DIR} ${SDL_SOUND_INCLUDE_DIR})
1674             TARGET_COMPILE_OPTIONS(alloopback PRIVATE ${C_FLAGS})
1675             TARGET_LINK_LIBRARIES(alloopback
1676                 PRIVATE ${LINKER_FLAGS} ${SDL_SOUND_LIBRARIES} ${SDL2_LIBRARY} ex-common common
1677                         OpenAL ${MATH_LIB})
1678
1679             ADD_EXECUTABLE(alhrtf examples/alhrtf.c)
1680             TARGET_COMPILE_DEFINITIONS(alhrtf PRIVATE ${CPP_DEFS})
1681             TARGET_INCLUDE_DIRECTORIES(alhrtf
1682                 PRIVATE ${SDL2_INCLUDE_DIR} ${SDL_SOUND_INCLUDE_DIR})
1683             TARGET_COMPILE_OPTIONS(alhrtf PRIVATE ${C_FLAGS})
1684             TARGET_LINK_LIBRARIES(alhrtf
1685                 PRIVATE ${LINKER_FLAGS} ${SDL_SOUND_LIBRARIES} ${SDL2_LIBRARY} ex-common common
1686                         OpenAL ${MATH_LIB})
1687
1688             IF(ALSOFT_INSTALL)
1689                 INSTALL(TARGETS alplay alstream alreverb almultireverb allatency alloopback alhrtf
1690                         RUNTIME DESTINATION ${CMAKE_INSTALL_BINDIR}
1691                         LIBRARY DESTINATION ${CMAKE_INSTALL_LIBDIR}
1692                         ARCHIVE DESTINATION ${CMAKE_INSTALL_LIBDIR}
1693                 )
1694             ENDIF()
1695
1696             MESSAGE(STATUS "Building SDL_sound example programs")
1697         ENDIF()
1698
1699         SET(FFVER_OK FALSE)
1700         IF(FFMPEG_FOUND)
1701             SET(FFVER_OK TRUE)
1702             IF(AVFORMAT_VERSION VERSION_LESS "57.56.101")
1703                 MESSAGE(STATUS "libavformat is too old! (${AVFORMAT_VERSION}, wanted 57.56.101)")
1704                 SET(FFVER_OK FALSE)
1705             ENDIF()
1706             IF(AVCODEC_VERSION VERSION_LESS "57.64.101")
1707                 MESSAGE(STATUS "libavcodec is too old! (${AVCODEC_VERSION}, wanted 57.64.101)")
1708                 SET(FFVER_OK FALSE)
1709             ENDIF()
1710             IF(AVUTIL_VERSION VERSION_LESS "55.34.101")
1711                 MESSAGE(STATUS "libavutil is too old! (${AVUTIL_VERSION}, wanted 55.34.101)")
1712                 SET(FFVER_OK FALSE)
1713             ENDIF()
1714             IF(SWSCALE_VERSION VERSION_LESS "4.2.100")
1715                 MESSAGE(STATUS "libswscale is too old! (${SWSCALE_VERSION}, wanted 4.2.100)")
1716                 SET(FFVER_OK FALSE)
1717             ENDIF()
1718             IF(SWRESAMPLE_VERSION VERSION_LESS "2.3.100")
1719                 MESSAGE(STATUS "libswresample is too old! (${SWRESAMPLE_VERSION}, wanted 2.3.100)")
1720                 SET(FFVER_OK FALSE)
1721             ENDIF()
1722         ENDIF()
1723         IF(FFVER_OK)
1724             ADD_EXECUTABLE(alffplay examples/alffplay.cpp)
1725             TARGET_COMPILE_DEFINITIONS(alffplay PRIVATE ${CPP_DEFS})
1726             TARGET_INCLUDE_DIRECTORIES(alffplay
1727                 PRIVATE ${SDL2_INCLUDE_DIR} ${FFMPEG_INCLUDE_DIRS})
1728             TARGET_COMPILE_OPTIONS(alffplay PRIVATE ${C_FLAGS})
1729             TARGET_LINK_LIBRARIES(alffplay
1730                 PRIVATE ${LINKER_FLAGS} ${SDL2_LIBRARY} ${FFMPEG_LIBRARIES} common OpenAL)
1731
1732             IF(ALSOFT_INSTALL)
1733                 INSTALL(TARGETS alffplay
1734                         RUNTIME DESTINATION ${CMAKE_INSTALL_BINDIR}
1735                         LIBRARY DESTINATION ${CMAKE_INSTALL_LIBDIR}
1736                         ARCHIVE DESTINATION ${CMAKE_INSTALL_LIBDIR}
1737                 )
1738             ENDIF()
1739             MESSAGE(STATUS "Building SDL+FFmpeg example programs")
1740         ENDIF()
1741         MESSAGE(STATUS "")
1742     ENDIF()
1743 ENDIF()