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0001 Usage: configure [options] 0002 Options: [defaults in brackets after descriptions] 0003 0004 Help options: 0005 --help print this message 0006 --quiet Suppress showing informative output 0007 --list-decoders show all available decoders 0008 --list-encoders show all available encoders 0009 --list-hwaccels show all available hardware accelerators 0010 --list-demuxers show all available demuxers 0011 --list-muxers show all available muxers 0012 --list-parsers show all available parsers 0013 --list-protocols show all available protocols 0014 --list-bsfs show all available bitstream filters 0015 --list-indevs show all available input devices 0016 --list-outdevs show all available output devices 0017 --list-filters show all available filters 0018 0019 Standard options: 0020 --logfile=FILE log tests and output to FILE [ffbuild/config.log] 0021 --disable-logging do not log configure debug information 0022 --fatal-warnings fail if any configure warning is generated 0023 --prefix=PREFIX install in PREFIX [/usr/local] 0024 --bindir=DIR install binaries in DIR [PREFIX/bin] 0025 --datadir=DIR install data files in DIR [PREFIX/share/ffmpeg] 0026 --docdir=DIR install documentation in DIR [PREFIX/share/doc/ffmpeg] 0027 --libdir=DIR install libs in DIR [PREFIX/lib] 0028 --shlibdir=DIR install shared libs in DIR [LIBDIR] 0029 --incdir=DIR install includes in DIR [PREFIX/include] 0030 --mandir=DIR install man page in DIR [PREFIX/share/man] 0031 --pkgconfigdir=DIR install pkg-config files in DIR [LIBDIR/pkgconfig] 0032 --enable-rpath use rpath to allow installing libraries in paths 0033 not part of the dynamic linker search path 0034 use rpath when linking programs (USE WITH CARE) 0035 --install-name-dir=DIR Darwin directory name for installed targets 0036 0037 Licensing options: 0038 --enable-gpl allow use of GPL code, the resulting libs 0039 and binaries will be under GPL [no] 0040 --enable-version3 upgrade (L)GPL to version 3 [no] 0041 --enable-nonfree allow use of nonfree code, the resulting libs 0042 and binaries will be unredistributable [no] 0043 0044 Configuration options: 0045 --disable-static do not build static libraries [no] 0046 --enable-shared build shared libraries [no] 0047 --enable-small optimize for size instead of speed 0048 --disable-runtime-cpudetect disable detecting CPU capabilities at runtime (smaller binary) 0049 --enable-gray enable full grayscale support (slower color) 0050 --disable-swscale-alpha disable alpha channel support in swscale 0051 --disable-all disable building components, libraries and programs 0052 --disable-autodetect disable automatically detected external libraries [no] 0053 0054 Program options: 0055 --disable-programs do not build command line programs 0056 --disable-ffmpeg disable ffmpeg build 0057 --disable-ffplay disable ffplay build 0058 --disable-ffprobe disable ffprobe build 0059 0060 Documentation options: 0061 --disable-doc do not build documentation 0062 --disable-htmlpages do not build HTML documentation pages 0063 --disable-manpages do not build man documentation pages 0064 --disable-podpages do not build POD documentation pages 0065 --disable-txtpages do not build text documentation pages 0066 0067 Component options: 0068 --disable-avdevice disable libavdevice build 0069 --disable-avcodec disable libavcodec build 0070 --disable-avformat disable libavformat build 0071 --disable-swresample disable libswresample build 0072 --disable-swscale disable libswscale build 0073 --disable-postproc disable libpostproc build 0074 --disable-avfilter disable libavfilter build 0075 --disable-pthreads disable pthreads [autodetect] 0076 --disable-w32threads disable Win32 threads [autodetect] 0077 --disable-os2threads disable OS/2 threads [autodetect] 0078 --disable-network disable network support [no] 0079 --disable-dct disable DCT code 0080 --disable-dwt disable DWT code 0081 --disable-error-resilience disable error resilience code 0082 --disable-lsp disable LSP code 0083 --disable-mdct disable MDCT code 0084 --disable-rdft disable RDFT code 0085 --disable-fft disable FFT code 0086 --disable-faan disable floating point AAN (I)DCT code 0087 --disable-pixelutils disable pixel utils in libavutil 0088 0089 Individual component options: 0090 --disable-everything disable all components listed below 0091 --disable-encoder=NAME disable encoder NAME 0092 --enable-encoder=NAME enable encoder NAME 0093 --disable-encoders disable all encoders 0094 --disable-decoder=NAME disable decoder NAME 0095 --enable-decoder=NAME enable decoder NAME 0096 --disable-decoders disable all decoders 0097 --disable-hwaccel=NAME disable hwaccel NAME 0098 --enable-hwaccel=NAME enable hwaccel NAME 0099 --disable-hwaccels disable all hwaccels 0100 --disable-muxer=NAME disable muxer NAME 0101 --enable-muxer=NAME enable muxer NAME 0102 --disable-muxers disable all muxers 0103 --disable-demuxer=NAME disable demuxer NAME 0104 --enable-demuxer=NAME enable demuxer NAME 0105 --disable-demuxers disable all demuxers 0106 --enable-parser=NAME enable parser NAME 0107 --disable-parser=NAME disable parser NAME 0108 --disable-parsers disable all parsers 0109 --enable-bsf=NAME enable bitstream filter NAME 0110 --disable-bsf=NAME disable bitstream filter NAME 0111 --disable-bsfs disable all bitstream filters 0112 --enable-protocol=NAME enable protocol NAME 0113 --disable-protocol=NAME disable protocol NAME 0114 --disable-protocols disable all protocols 0115 --enable-indev=NAME enable input device NAME 0116 --disable-indev=NAME disable input device NAME 0117 --disable-indevs disable input devices 0118 --enable-outdev=NAME enable output device NAME 0119 --disable-outdev=NAME disable output device NAME 0120 --disable-outdevs disable output devices 0121 --disable-devices disable all devices 0122 --enable-filter=NAME enable filter NAME 0123 --disable-filter=NAME disable filter NAME 0124 --disable-filters disable all filters 0125 0126 External library support: 0127 0128 Using any of the following switches will allow FFmpeg to link to the 0129 corresponding external library. All the components depending on that library 0130 will become enabled, if all their other dependencies are met and they are not 0131 explicitly disabled. E.g. --enable-libopus will enable linking to 0132 libopus and allow the libopus encoder to be built, unless it is 0133 specifically disabled with --disable-encoder=libopus. 0134 0135 Note that only the system libraries are auto-detected. All the other external 0136 libraries must be explicitly enabled. 0137 0138 Also note that the following help text describes the purpose of the libraries 0139 themselves, not all their features will necessarily be usable by FFmpeg. 0140 0141 --disable-alsa disable ALSA support [autodetect] 0142 --disable-appkit disable Apple AppKit framework [autodetect] 0143 --disable-avfoundation disable Apple AVFoundation framework [autodetect] 0144 --enable-avisynth enable reading of AviSynth script files [no] 0145 --disable-bzlib disable bzlib [autodetect] 0146 --disable-coreimage disable Apple CoreImage framework [autodetect] 0147 --enable-chromaprint enable audio fingerprinting with chromaprint [no] 0148 --enable-frei0r enable frei0r video filtering [no] 0149 --enable-gcrypt enable gcrypt, needed for rtmp(t)e support 0150 if openssl, librtmp or gmp is not used [no] 0151 --enable-gmp enable gmp, needed for rtmp(t)e support 0152 if openssl or librtmp is not used [no] 0153 --enable-gnutls enable gnutls, needed for https support 0154 if openssl, libtls or mbedtls is not used [no] 0155 --disable-iconv disable iconv [autodetect] 0156 --enable-jni enable JNI support [no] 0157 --enable-ladspa enable LADSPA audio filtering [no] 0158 --enable-libaom enable AV1 video encoding/decoding via libaom [no] 0159 --enable-libaribb24 enable ARIB text and caption decoding via libaribb24 [no] 0160 --enable-libass enable libass subtitles rendering, 0161 needed for subtitles and ass filter [no] 0162 --enable-libbluray enable BluRay reading using libbluray [no] 0163 --enable-libbs2b enable bs2b DSP library [no] 0164 --enable-libcaca enable textual display using libcaca [no] 0165 --enable-libcelt enable CELT decoding via libcelt [no] 0166 --enable-libcdio enable audio CD grabbing with libcdio [no] 0167 --enable-libcodec2 enable codec2 en/decoding using libcodec2 [no] 0168 --enable-libdav1d enable AV1 decoding via libdav1d [no] 0169 --enable-libdavs2 enable AVS2 decoding via libdavs2 [no] 0170 --enable-libdc1394 enable IIDC-1394 grabbing using libdc1394 0171 and libraw1394 [no] 0172 --enable-libfdk-aac enable AAC de/encoding via libfdk-aac [no] 0173 --enable-libflite enable flite (voice synthesis) support via libflite [no] 0174 --enable-libfontconfig enable libfontconfig, useful for drawtext filter [no] 0175 --enable-libfreetype enable libfreetype, needed for drawtext filter [no] 0176 --enable-libfribidi enable libfribidi, improves drawtext filter [no] 0177 --enable-libglslang enable GLSL->SPIRV compilation via libglslang [no] 0178 --enable-libgme enable Game Music Emu via libgme [no] 0179 --enable-libgsm enable GSM de/encoding via libgsm [no] 0180 --enable-libiec61883 enable iec61883 via libiec61883 [no] 0181 --enable-libilbc enable iLBC de/encoding via libilbc [no] 0182 --enable-libjack enable JACK audio sound server [no] 0183 --enable-libklvanc enable Kernel Labs VANC processing [no] 0184 --enable-libkvazaar enable HEVC encoding via libkvazaar [no] 0185 --enable-liblensfun enable lensfun lens correction [no] 0186 --enable-libmodplug enable ModPlug via libmodplug [no] 0187 --enable-libmp3lame enable MP3 encoding via libmp3lame [no] 0188 --enable-libopencore-amrnb enable AMR-NB de/encoding via libopencore-amrnb [no] 0189 --enable-libopencore-amrwb enable AMR-WB decoding via libopencore-amrwb [no] 0190 --enable-libopencv enable video filtering via libopencv [no] 0191 --enable-libopenh264 enable H.264 encoding via OpenH264 [no] 0192 --enable-libopenjpeg enable JPEG 2000 de/encoding via OpenJPEG [no] 0193 --enable-libopenmpt enable decoding tracked files via libopenmpt [no] 0194 --enable-libopenvino enable OpenVINO as a DNN module backend 0195 for DNN based filters like dnn_processing [no] 0196 --enable-libopus enable Opus de/encoding via libopus [no] 0197 --enable-libplacebo enable libplacebo library [no] 0198 --enable-libpulse enable Pulseaudio input via libpulse [no] 0199 --enable-librabbitmq enable RabbitMQ library [no] 0200 --enable-librav1e enable AV1 encoding via rav1e [no] 0201 --enable-librist enable RIST via librist [no] 0202 --enable-librsvg enable SVG rasterization via librsvg [no] 0203 --enable-librubberband enable rubberband needed for rubberband filter [no] 0204 --enable-librtmp enable RTMP[E] support via librtmp [no] 0205 --enable-libshaderc enable GLSL->SPIRV compilation via libshaderc [no] 0206 --enable-libshine enable fixed-point MP3 encoding via libshine [no] 0207 --enable-libsmbclient enable Samba protocol via libsmbclient [no] 0208 --enable-libsnappy enable Snappy compression, needed for hap encoding [no] 0209 --enable-libsoxr enable Include libsoxr resampling [no] 0210 --enable-libspeex enable Speex de/encoding via libspeex [no] 0211 --enable-libsrt enable Haivision SRT protocol via libsrt [no] 0212 --enable-libssh enable SFTP protocol via libssh [no] 0213 --enable-libsvtav1 enable AV1 encoding via SVT [no] 0214 --enable-libtensorflow enable TensorFlow as a DNN module backend 0215 for DNN based filters like sr [no] 0216 --enable-libtesseract enable Tesseract, needed for ocr filter [no] 0217 --enable-libtheora enable Theora encoding via libtheora [no] 0218 --enable-libtls enable LibreSSL (via libtls), needed for https support 0219 if openssl, gnutls or mbedtls is not used [no] 0220 --enable-libtwolame enable MP2 encoding via libtwolame [no] 0221 --enable-libuavs3d enable AVS3 decoding via libuavs3d [no] 0222 --enable-libv4l2 enable libv4l2/v4l-utils [no] 0223 --enable-libvidstab enable video stabilization using vid.stab [no] 0224 --enable-libvmaf enable vmaf filter via libvmaf [no] 0225 --enable-libvo-amrwbenc enable AMR-WB encoding via libvo-amrwbenc [no] 0226 --enable-libvorbis enable Vorbis en/decoding via libvorbis, 0227 native implementation exists [no] 0228 --enable-libvpx enable VP8 and VP9 de/encoding via libvpx [no] 0229 --enable-libwebp enable WebP encoding via libwebp [no] 0230 --enable-libx264 enable H.264 encoding via x264 [no] 0231 --enable-libx265 enable HEVC encoding via x265 [no] 0232 --enable-libxavs enable AVS encoding via xavs [no] 0233 --enable-libxavs2 enable AVS2 encoding via xavs2 [no] 0234 --enable-libxcb enable X11 grabbing using XCB [autodetect] 0235 --enable-libxcb-shm enable X11 grabbing shm communication [autodetect] 0236 --enable-libxcb-xfixes enable X11 grabbing mouse rendering [autodetect] 0237 --enable-libxcb-shape enable X11 grabbing shape rendering [autodetect] 0238 --enable-libxvid enable Xvid encoding via xvidcore, 0239 native MPEG-4/Xvid encoder exists [no] 0240 --enable-libxml2 enable XML parsing using the C library libxml2, needed 0241 for dash and imf demuxing support [no] 0242 --enable-libzimg enable z.lib, needed for zscale filter [no] 0243 --enable-libzmq enable message passing via libzmq [no] 0244 --enable-libzvbi enable teletext support via libzvbi [no] 0245 --enable-lv2 enable LV2 audio filtering [no] 0246 --disable-lzma disable lzma [autodetect] 0247 --enable-decklink enable Blackmagic DeckLink I/O support [no] 0248 --enable-mbedtls enable mbedTLS, needed for https support 0249 if openssl, gnutls or libtls is not used [no] 0250 --enable-mediacodec enable Android MediaCodec support [no] 0251 --enable-mediafoundation enable encoding via MediaFoundation [auto] 0252 --disable-metal disable Apple Metal framework [autodetect] 0253 --enable-libmysofa enable libmysofa, needed for sofalizer filter [no] 0254 --enable-openal enable OpenAL 1.1 capture support [no] 0255 --enable-opencl enable OpenCL processing [no] 0256 --enable-opengl enable OpenGL rendering [no] 0257 --enable-openssl enable openssl, needed for https support 0258 if gnutls, libtls or mbedtls is not used [no] 0259 --enable-pocketsphinx enable PocketSphinx, needed for asr filter [no] 0260 --disable-sndio disable sndio support [autodetect] 0261 --disable-schannel disable SChannel SSP, needed for TLS support on 0262 Windows if openssl and gnutls are not used [autodetect] 0263 --disable-sdl2 disable sdl2 [autodetect] 0264 --disable-securetransport disable Secure Transport, needed for TLS support 0265 on OSX if openssl and gnutls are not used [autodetect] 0266 --enable-vapoursynth enable VapourSynth demuxer [no] 0267 --disable-vulkan disable Vulkan code [autodetect] 0268 --disable-xlib disable xlib [autodetect] 0269 --disable-zlib disable zlib [autodetect] 0270 0271 The following libraries provide various hardware acceleration features: 0272 --disable-amf disable AMF video encoding code [autodetect] 0273 --disable-audiotoolbox disable Apple AudioToolbox code [autodetect] 0274 --enable-cuda-nvcc enable Nvidia CUDA compiler [no] 0275 --disable-cuda-llvm disable CUDA compilation using clang [autodetect] 0276 --disable-cuvid disable Nvidia CUVID support [autodetect] 0277 --disable-d3d11va disable Microsoft Direct3D 11 video acceleration code [autodetect] 0278 --disable-dxva2 disable Microsoft DirectX 9 video acceleration code [autodetect] 0279 --disable-ffnvcodec disable dynamically linked Nvidia code [autodetect] 0280 --enable-libdrm enable DRM code (Linux) [no] 0281 --enable-libmfx enable Intel MediaSDK (AKA Quick Sync Video) code via libmfx [no] 0282 --enable-libnpp enable Nvidia Performance Primitives-based code [no] 0283 --enable-mmal enable Broadcom Multi-Media Abstraction Layer (Raspberry Pi) via MMAL [no] 0284 --disable-nvdec disable Nvidia video decoding acceleration (via hwaccel) [autodetect] 0285 --disable-nvenc disable Nvidia video encoding code [autodetect] 0286 --enable-omx enable OpenMAX IL code [no] 0287 --enable-omx-rpi enable OpenMAX IL code for Raspberry Pi [no] 0288 --enable-rkmpp enable Rockchip Media Process Platform code [no] 0289 --disable-v4l2-m2m disable V4L2 mem2mem code [autodetect] 0290 --disable-vaapi disable Video Acceleration API (mainly Unix/Intel) code [autodetect] 0291 --disable-vdpau disable Nvidia Video Decode and Presentation API for Unix code [autodetect] 0292 --disable-videotoolbox disable VideoToolbox code [autodetect] 0293 0294 Toolchain options: 0295 --arch=ARCH select architecture [] 0296 --cpu=CPU select the minimum required CPU (affects 0297 instruction selection, may crash on older CPUs) 0298 --cross-prefix=PREFIX use PREFIX for compilation tools [] 0299 --progs-suffix=SUFFIX program name suffix [] 0300 --enable-cross-compile assume a cross-compiler is used 0301 --sysroot=PATH root of cross-build tree 0302 --sysinclude=PATH location of cross-build system headers 0303 --target-os=OS compiler targets OS [] 0304 --target-exec=CMD command to run executables on target 0305 --target-path=DIR path to view of build directory on target 0306 --target-samples=DIR path to samples directory on target 0307 --tempprefix=PATH force fixed dir/prefix instead of mktemp for checks 0308 --toolchain=NAME set tool defaults according to NAME 0309 (gcc-asan, clang-asan, gcc-msan, clang-msan, 0310 gcc-tsan, clang-tsan, gcc-usan, clang-usan, 0311 valgrind-massif, valgrind-memcheck, 0312 msvc, icl, gcov, llvm-cov, hardened) 0313 --nm=NM use nm tool NM [nm -g] 0314 --ar=AR use archive tool AR [ar] 0315 --as=AS use assembler AS [] 0316 --ln_s=LN_S use symbolic link tool LN_S [ln -s -f] 0317 --strip=STRIP use strip tool STRIP [strip] 0318 --windres=WINDRES use windows resource compiler WINDRES [windres] 0319 --x86asmexe=EXE use nasm-compatible assembler EXE [nasm] 0320 --cc=CC use C compiler CC [gcc] 0321 --cxx=CXX use C compiler CXX [g++] 0322 --objcc=OCC use ObjC compiler OCC [gcc] 0323 --dep-cc=DEPCC use dependency generator DEPCC [gcc] 0324 --nvcc=NVCC use Nvidia CUDA compiler NVCC or clang [] 0325 --ld=LD use linker LD [] 0326 --metalcc=METALCC use metal compiler METALCC [xcrun -sdk macosx metal] 0327 --metallib=METALLIB use metal linker METALLIB [xcrun -sdk macosx metallib] 0328 --pkg-config=PKGCONFIG use pkg-config tool PKGCONFIG [pkg-config] 0329 --pkg-config-flags=FLAGS pass additional flags to pkgconf [] 0330 --ranlib=RANLIB use ranlib RANLIB [ranlib] 0331 --doxygen=DOXYGEN use DOXYGEN to generate API doc [doxygen] 0332 --host-cc=HOSTCC use host C compiler HOSTCC 0333 --host-cflags=HCFLAGS use HCFLAGS when compiling for host 0334 --host-cppflags=HCPPFLAGS use HCPPFLAGS when compiling for host 0335 --host-ld=HOSTLD use host linker HOSTLD 0336 --host-ldflags=HLDFLAGS use HLDFLAGS when linking for host 0337 --host-extralibs=HLIBS use libs HLIBS when linking for host 0338 --host-os=OS compiler host OS [] 0339 --extra-cflags=ECFLAGS add ECFLAGS to CFLAGS [] 0340 --extra-cxxflags=ECFLAGS add ECFLAGS to CXXFLAGS [] 0341 --extra-objcflags=FLAGS add FLAGS to OBJCFLAGS [] 0342 --extra-ldflags=ELDFLAGS add ELDFLAGS to LDFLAGS [] 0343 --extra-ldexeflags=ELDFLAGS add ELDFLAGS to LDEXEFLAGS [] 0344 --extra-ldsoflags=ELDFLAGS add ELDFLAGS to LDSOFLAGS [] 0345 --extra-libs=ELIBS add ELIBS [] 0346 --extra-version=STRING version string suffix [] 0347 --optflags=OPTFLAGS override optimization-related compiler flags 0348 --nvccflags=NVCCFLAGS override nvcc flags [] 0349 --build-suffix=SUFFIX library name suffix [] 0350 --enable-pic build position-independent code 0351 --enable-thumb compile for Thumb instruction set 0352 --enable-lto use link-time optimization 0353 --env="ENV=override" override the environment variables 0354 0355 Advanced options (experts only): 0356 --malloc-prefix=PREFIX prefix malloc and related names with PREFIX 0357 --custom-allocator=NAME use a supported custom allocator 0358 --disable-symver disable symbol versioning 0359 --enable-hardcoded-tables use hardcoded tables instead of runtime generation 0360 --disable-safe-bitstream-reader 0361 disable buffer boundary checking in bitreaders 0362 (faster, but may crash) 0363 --sws-max-filter-size=N the max filter size swscale uses [256] 0364 0365 Optimization options (experts only): 0366 --disable-asm disable all assembly optimizations 0367 --disable-altivec disable AltiVec optimizations 0368 --disable-vsx disable VSX optimizations 0369 --disable-power8 disable POWER8 optimizations 0370 --disable-amd3dnow disable 3DNow! optimizations 0371 --disable-amd3dnowext disable 3DNow! extended optimizations 0372 --disable-mmx disable MMX optimizations 0373 --disable-mmxext disable MMXEXT optimizations 0374 --disable-sse disable SSE optimizations 0375 --disable-sse2 disable SSE2 optimizations 0376 --disable-sse3 disable SSE3 optimizations 0377 --disable-ssse3 disable SSSE3 optimizations 0378 --disable-sse4 disable SSE4 optimizations 0379 --disable-sse42 disable SSE4.2 optimizations 0380 --disable-avx disable AVX optimizations 0381 --disable-xop disable XOP optimizations 0382 --disable-fma3 disable FMA3 optimizations 0383 --disable-fma4 disable FMA4 optimizations 0384 --disable-avx2 disable AVX2 optimizations 0385 --disable-avx512 disable AVX-512 optimizations 0386 --disable-avx512icl disable AVX-512ICL optimizations 0387 --disable-aesni disable AESNI optimizations 0388 --disable-armv5te disable armv5te optimizations 0389 --disable-armv6 disable armv6 optimizations 0390 --disable-armv6t2 disable armv6t2 optimizations 0391 --disable-vfp disable VFP optimizations 0392 --disable-neon disable NEON optimizations 0393 --disable-inline-asm disable use of inline assembly 0394 --disable-x86asm disable use of standalone x86 assembly 0395 --disable-mipsdsp disable MIPS DSP ASE R1 optimizations 0396 --disable-mipsdspr2 disable MIPS DSP ASE R2 optimizations 0397 --disable-msa disable MSA optimizations 0398 --disable-mipsfpu disable floating point MIPS optimizations 0399 --disable-mmi disable Loongson MMI optimizations 0400 --disable-lsx disable Loongson LSX optimizations 0401 --disable-lasx disable Loongson LASX optimizations 0402 --disable-fast-unaligned consider unaligned accesses slow 0403 0404 Developer options (useful when working on FFmpeg itself): 0405 --disable-debug disable debugging symbols 0406 --enable-debug=LEVEL set the debug level [] 0407 --disable-optimizations disable compiler optimizations 0408 --enable-extra-warnings enable more compiler warnings 0409 --disable-stripping disable stripping of executables and shared libraries 0410 --assert-level=level 0(default), 1 or 2, amount of assertion testing, 0411 2 causes a slowdown at runtime. 0412 --enable-memory-poisoning fill heap uninitialized allocated space with arbitrary data 0413 --valgrind=VALGRIND run "make fate" tests through valgrind to detect memory 0414 leaks and errors, using the specified valgrind binary. 0415 Cannot be combined with --target-exec 0416 --enable-ftrapv Trap arithmetic overflows 0417 --samples=PATH location of test samples for FATE, if not set use 0418 $FATE_SAMPLES at make invocation time. 0419 --enable-neon-clobber-test check NEON registers for clobbering (should be 0420 used only for debugging purposes) 0421 --enable-xmm-clobber-test check XMM registers for clobbering (Win64-only; 0422 should be used only for debugging purposes) 0423 --enable-random randomly enable/disable components 0424 --disable-random 0425 --enable-random=LIST randomly enable/disable specific components or 0426 --disable-random=LIST component groups. LIST is a comma-separated list 0427 of NAME[:PROB] entries where NAME is a component 0428 (group) and PROB the probability associated with 0429 NAME (default 0.5). 0430 --random-seed=VALUE seed value for --enable/disable-random 0431 --disable-valgrind-backtrace do not print a backtrace under Valgrind 0432 (only applies to --disable-optimizations builds) 0433 --enable-ossfuzz Enable building fuzzer tool 0434 --libfuzzer=PATH path to libfuzzer 0435 --ignore-tests=TESTS comma-separated list (without "fate-" prefix 0436 in the name) of tests whose result is ignored 0437 --enable-linux-perf enable Linux Performance Monitor API 0438 --enable-macos-kperf enable macOS kperf (private) API 0439 --disable-large-tests disable tests that use a large amount of memory 0440 --disable-ptx-compression don't compress CUDA PTX code even when possible 0441 0442 NOTE: Object files are built at the place where configure is launched.