Move CODEC_FLAG_GRAY check to outer loop
[ffmpeg.git] / configure
index 495e5b0..891b06c 100755 (executable)
--- a/configure
+++ b/configure
@@ -83,6 +83,10 @@ Configuration options:
   --disable-ffmpeg         disable ffmpeg build
   --disable-ffplay         disable ffplay build
   --disable-ffserver       disable ffserver build
+  --disable-avdevice       disable libavdevice build
+  --disable-avcodec        disable libavcodec build
+  --disable-avformat       disable libavformat build
+  --disable-swscale        disable libswscale build
   --enable-postproc        enable GPLed postprocessing support [no]
   --enable-avfilter        video filter support [no]
   --enable-avfilter-lavf   video filters dependent on avformat [no]
@@ -92,13 +96,13 @@ Configuration options:
   --enable-w32threads      use Win32 threads [no]
   --enable-x11grab         enable X11 grabbing [no]
   --disable-network        disable network support [no]
-  --disable-ipv6           disable IPv6 support [no]
   --disable-mpegaudio-hp   faster (but less accurate) MPEG audio decoding [no]
   --enable-gray            enable full grayscale support (slower color)
   --disable-swscale-alpha  disable alpha channel support in swscale
   --disable-fastdiv        disable table-based division
   --enable-small           optimize for size instead of speed
   --disable-aandct         disable AAN DCT code
+  --disable-dct            disable DCT code
   --disable-fft            disable FFT code
   --disable-golomb         disable Golomb code
   --disable-lpc            disable LPC code
@@ -106,6 +110,7 @@ Configuration options:
   --disable-rdft           disable RDFT code
   --disable-vaapi          disable VAAPI code
   --disable-vdpau          disable VDPAU code
+  --disable-dxva2          disable DXVA2 code
   --enable-runtime-cpudetect detect cpu capabilities at runtime (bigger binary)
   --enable-hardcoded-tables use hardcoded tables instead of runtime generation
   --enable-memalign-hack   emulate memalign, interferes with memory debuggers
@@ -226,6 +231,8 @@ Advanced options (experts only):
   --disable-vis            disable VIS optimizations
   --disable-yasm           disable use of yasm assembler
   --enable-pic             build position-independent code
+  --malloc-prefix=PFX      prefix malloc and related names with PFX
+  --enable-sram            allow use of on-chip SRAM
 
 Developer options (useful when working on FFmpeg itself):
   --disable-debug          disable debugging symbols
@@ -661,6 +668,18 @@ int main(void){ $func(); }
 EOF
 }
 
+check_mathfunc(){
+    log check_mathfunc "$@"
+    func=$1
+    shift
+    disable $func
+    check_ld "$@" <<EOF && enable $func
+#include <math.h>
+float foo(float f) { return $func(f); }
+int main(void){ return 0; }
+EOF
+}
+
 check_func_headers(){
     log check_func_headers "$@"
     headers=$1
@@ -857,12 +876,17 @@ COMPONENT_LIST="
 CONFIG_LIST="
     $COMPONENT_LIST
     aandct
+    avcodec
+    avdevice
     avfilter
     avfilter_lavf
+    avformat
     avisynth
     beos_netserver
     bzlib
+    dct
     doc
+    dxva2
     fastdiv
     ffmpeg
     ffplay
@@ -873,7 +897,6 @@ CONFIG_LIST="
     gprof
     gray
     hardcoded_tables
-    ipv6
     libdc1394
     libdirac
     libfaac
@@ -905,7 +928,9 @@ CONFIG_LIST="
     runtime_cpudetect
     shared
     small
+    sram
     static
+    swscale
     swscale_alpha
     vaapi
     vdpau
@@ -939,6 +964,7 @@ ARCH_LIST='
     sh4
     sparc
     sparc64
+    tomi
     x86
     x86_32
     x86_64
@@ -974,6 +1000,7 @@ HAVE_LIST="
     alsa_asoundlib_h
     altivec_h
     arpa_inet_h
+    attribute_may_alias
     attribute_packed
     bswap
     closesocket
@@ -1029,7 +1056,11 @@ HAVE_LIST="
     socklen_t
     soundcard_h
     poll_h
+    setrlimit
     struct_addrinfo
+    struct_ipv6_mreq
+    struct_sockaddr_in6
+    struct_sockaddr_sa_len
     struct_sockaddr_storage
     sys_mman_h
     sys_resource_h
@@ -1049,6 +1080,7 @@ HAVE_LIST="
 
 # options emitted with CONFIG_ prefix but not available on command line
 CONFIG_EXTRA="
+    avutil
     gplv3
     lgplv3
 "
@@ -1094,6 +1126,7 @@ CMDLINE_SET="
     host_os
     ld
     logfile
+    malloc_prefix
     nm
     source_path
     sysinclude
@@ -1125,7 +1158,7 @@ ppc4xx_deps="ppc"
 
 vis_deps="sparc"
 
-x86_64_select="cmov fast_cmov"
+x86_64_suggest="cmov fast_cmov"
 amd3dnow_deps="mmx"
 amd3dnowext_deps="amd3dnow"
 mmx_deps="x86"
@@ -1140,16 +1173,23 @@ fast_unaligned_if_any="armv6 ppc x86"
 need_memalign="altivec neon sse"
 inline_asm_deps="!tms470"
 
+# subsystems
+mdct_select="fft"
+rdft_select="fft"
+
 # decoders / encoders / hardware accelerators
-aac_decoder_select="fft mdct aac_parser"
-aac_encoder_select="fft mdct"
-ac3_decoder_select="fft mdct ac3_parser"
+aac_decoder_select="mdct aac_parser"
+aac_encoder_select="mdct"
+ac3_decoder_select="mdct ac3_parser"
 alac_encoder_select="lpc"
-atrac3_decoder_select="fft mdct"
+atrac1_decoder_select="mdct"
+atrac3_decoder_select="mdct"
+binkaudio_dct_decoder_select="mdct rdft dct"
+binkaudio_rdft_decoder_select="mdct rdft"
 cavs_decoder_select="golomb"
-cook_decoder_select="fft mdct"
+cook_decoder_select="mdct"
 cscd_decoder_suggest="zlib"
-dca_decoder_select="fft mdct"
+dca_decoder_select="mdct"
 dnxhd_encoder_select="aandct"
 dxa_decoder_select="zlib"
 eac3_decoder_select="ac3_decoder"
@@ -1171,6 +1211,8 @@ h263_vaapi_hwaccel_select="vaapi h263_decoder"
 h263i_decoder_select="h263_decoder"
 h263p_encoder_select="h263_encoder"
 h264_decoder_select="golomb"
+h264_dxva2_hwaccel_deps="dxva2api_h"
+h264_dxva2_hwaccel_select="dxva2 h264_decoder"
 h264_vaapi_hwaccel_deps="va_va_h"
 h264_vaapi_hwaccel_select="vaapi"
 h264_vdpau_decoder_deps="vdpau_vdpau_h vdpau_vdpau_x11_h"
@@ -1204,11 +1246,11 @@ msmpeg4v2_decoder_select="h263_decoder"
 msmpeg4v2_encoder_select="h263_encoder"
 msmpeg4v3_decoder_select="h263_decoder"
 msmpeg4v3_encoder_select="h263_encoder"
-nellymoser_decoder_select="fft mdct"
-nellymoser_encoder_select="fft mdct"
+nellymoser_decoder_select="mdct"
+nellymoser_encoder_select="mdct"
 png_decoder_select="zlib"
 png_encoder_select="zlib"
-qdm2_decoder_select="fft mdct rdft"
+qdm2_decoder_select="mdct rdft"
 rv10_decoder_select="h263_decoder"
 rv10_encoder_select="h263_encoder"
 rv20_decoder_select="h263_decoder"
@@ -1226,24 +1268,29 @@ tiff_decoder_suggest="zlib"
 tiff_encoder_suggest="zlib"
 truehd_decoder_select="mlp_decoder"
 tscc_decoder_select="zlib"
+twinvq_decoder_select="mdct"
 vc1_decoder_select="h263_decoder"
+vc1_dxva2_hwaccel_deps="dxva2api_h DXVA_PictureParameters_wDecodedPictureIndex"
+vc1_dxva2_hwaccel_select="dxva2 vc1_decoder"
 vc1_vaapi_hwaccel_deps="va_va_h"
 vc1_vaapi_hwaccel_select="vaapi vc1_decoder"
 vc1_vdpau_decoder_deps="vdpau_vdpau_h vdpau_vdpau_x11_h"
 vc1_vdpau_decoder_select="vdpau vc1_decoder"
-vorbis_decoder_select="fft mdct"
-vorbis_encoder_select="fft mdct"
+vorbis_decoder_select="mdct"
+vorbis_encoder_select="mdct"
 vp6a_decoder_select="vp6_decoder"
 vp6f_decoder_select="vp6_decoder"
-wmav1_decoder_select="fft mdct"
-wmav1_encoder_select="fft mdct"
-wmav2_decoder_select="fft mdct"
-wmav2_encoder_select="fft mdct"
+wmapro_decoder_select="mdct"
+wmav1_decoder_select="mdct"
+wmav1_encoder_select="mdct"
+wmav2_decoder_select="mdct"
+wmav2_encoder_select="mdct"
 wmv1_decoder_select="h263_decoder"
 wmv1_encoder_select="h263_encoder"
 wmv2_decoder_select="h263_decoder"
 wmv2_encoder_select="h263_encoder"
 wmv3_decoder_select="vc1_decoder"
+wmv3_dxva2_hwaccel_select="vc1_dxva2_hwaccel"
 wmv3_vaapi_hwaccel_select="vc1_vaapi_hwaccel"
 wmv3_vdpau_decoder_select="vc1_vdpau_decoder"
 zlib_decoder_select="zlib"
@@ -1324,7 +1371,7 @@ oss_outdev_deps_any="soundcard_h sys_soundcard_h"
 v4l_indev_deps="linux_videodev_h"
 v4l2_indev_deps_any="linux_videodev2_h sys_videoio_h"
 vfwcap_indev_deps="capCreateCaptureWindow"
-vfwcap_indev_extralibs="-lvfw32"
+vfwcap_indev_extralibs="-lavicap32"
 x11_grab_device_indev_deps="x11grab XShmCreateImage"
 x11_grab_device_indev_extralibs="-lX11 -lXext -lXfixes"
 
@@ -1338,10 +1385,17 @@ udp_protocol_deps="network"
 
 # filters
 movie_filter_deps="avfilter_lavf"
+avfilter_lavf_deps="avformat"
+
+# libraries
+avdevice_deps="avcodec avformat"
+avformat_deps="avcodec"
 
 # programs
-ffplay_deps="sdl"
-ffserver_deps="ffm_muxer rtp_protocol rtsp_demuxer"
+ffmpeg_deps="avcodec avformat swscale"
+ffplay_deps="avcodec avformat swscale sdl"
+ffplay_select="rdft"
+ffserver_deps="avformat ffm_muxer rtp_protocol rtsp_demuxer"
 ffserver_extralibs='$ldl'
 
 doc_deps="texi2html"
@@ -1371,15 +1425,21 @@ ranlib="ranlib"
 strip="strip"
 yasmexe="yasm"
 
+nm_opts='-g'
+
 # machine
-arch=$(uname -m)
+arch_default=$(uname -m)
 cpu="generic"
 
 # OS
-target_os=$(tolower $(uname -s))
-host_os=$target_os
+target_os_default=$(tolower $(uname -s))
+host_os=$target_os_default
 
 # configurable options
+enable avcodec
+enable avdevice
+enable avformat
+enable avutil
 enable asm
 enable debug
 enable doc
@@ -1387,13 +1447,13 @@ enable fastdiv
 enable ffmpeg
 enable ffplay
 enable ffserver
-enable ipv6
 enable mpegaudio_hp
 enable network
 enable optimizations
 enable protocols
 enable static
 enable stripping
+enable swscale
 enable swscale_alpha
 
 # build settings
@@ -1415,7 +1475,7 @@ CC_O='-o $@'
 host_cflags='-D_ISOC99_SOURCE -D_POSIX_C_SOURCE=200112 -O3 -g -Wall'
 host_libs='-lm'
 
-target_path='.'
+target_path='$(CURDIR)'
 
 # gcc stupidly only outputs the basename of targets with -MM, but we need the
 # full relative path for objects in subdirectories for non-recursive Make.
@@ -1484,7 +1544,7 @@ die_unknown(){
 show_list() {
     suffix=_$1
     shift
-    echo $* | sed s/$suffix//g | tr ' ' '\n' | sort
+    echo $* | sed s/$suffix//g | tr ' ' '\n' | sort | pr -3 -t
     exit 0
 }
 
@@ -1547,6 +1607,13 @@ set >> $logfile
 
 test -n "$cross_prefix" && enable cross_compile
 
+if enabled cross_compile; then
+    test -n "$arch" && test -n "$target_os" ||
+        die "Must specify target arch and OS when cross-compiling"
+fi
+
+set_default arch target_os
+
 ar="${cross_prefix}${ar}"
 cc_default="${cross_prefix}${cc_default}"
 nm_default="${cross_prefix}${nm_default}"
@@ -1626,20 +1693,28 @@ if   $cc -v 2>&1 | grep -qi ^gcc; then
         CC_DEPFLAGS='-MMD -MF $(@:.o=.d) -MT $@'
         AS_DEPFLAGS='-MMD -MF $(@:.o=.d) -MT $@'
     fi
+    speed_cflags='-O3'
+    size_cflags='-Os'
 elif $cc --version 2>/dev/null | grep -q Intel; then
     cc_type=icc
     cc_version="AV_STRINGIFY(__INTEL_COMPILER)"
     CC_DEPFLAGS='-MMD'
     AS_DEPFLAGS='-MMD'
+    speed_cflags='-O3'
+    size_cflags='-Os'
 elif $cc -v 2>&1 | grep -q xlc; then
     cc_type=xlc
     cc_version="AV_STRINGIFY(__IBMC__)"
+    speed_cflags='-O5'
+    size_cflags='-O5 -qcompact'
 elif $cc -V 2>/dev/null | grep -q Compaq; then
     cc_type=ccc
     cc_version="AV_STRINGIFY(__DECC_VER)"
     DEPFLAGS='$(CPPFLAGS) $(CFLAGS) -M'
     debuglevel=3
     add_ldflags -Wl,-z,now # calls to libots crash without this
+    speed_cflags='-fast'
+    size_cflags='-O1'
 elif $cc --vsn 2>/dev/null | grep -q "ARM C/C++ Compiler"; then
     test -d "$sysroot" || die "No valid sysroot specified."
     cc_type=armcc
@@ -1654,6 +1729,8 @@ elif $cc --vsn 2>/dev/null | grep -q "ARM C/C++ Compiler"; then
     as_default="${cross_prefix}gcc"
     CC_DEPFLAGS='-MMD'
     AS_DEPFLAGS='-MMD'
+    speed_cflags='-O3'
+    size_cflags='-Os'
 elif $cc -version 2>/dev/null | grep -q TMS470; then
     cc_type=tms470
     cc_version="AV_STRINGIFY(__TI_COMPILER_VERSION__)"
@@ -1666,6 +1743,8 @@ elif $cc -version 2>/dev/null | grep -q TMS470; then
     add_cflags -D__gnuc_va_list=va_list -D__USER_LABEL_PREFIX__=
     CC_DEPFLAGS='-ppa -ppd=$(@:.o=.d)'
     AS_DEPFLAGS='-MMD'
+    speed_cflags='-O3 -mf=5'
+    size_cflags='-O3 -mf=2'
     filter_cflags=tms470_flags
     tms470_flags(){
         for flag; do
@@ -1683,10 +1762,11 @@ elif $cc -version 2>/dev/null | grep -q TMS470; then
                     ;;
                 -mfpu=neon)     echo --float_support=vfpv3 --neon ;;
                 -mfpu=vfp)      echo --float_support=vfpv2        ;;
+                -mfpu=vfpv3)    echo --float_support=vfpv3        ;;
                 -msoft-float)   echo --float_support=vfplib       ;;
-                -Os)            echo -O3 -mf=2                    ;;
-                -O[0-3])        echo $flag -mf=5                  ;;
+                -O[0-3]|-mf=*)  echo $flag                        ;;
                 -g)             echo -g -mn                       ;;
+                -pds=*)         echo $flag                        ;;
             esac
         done
     }
@@ -1695,11 +1775,15 @@ elif $cc -v 2>&1 | grep -q clang; then
     cc_version=__VERSION__
     CC_DEPFLAGS='-MMD'
     AS_DEPFLAGS='-MMD'
+    speed_cflags='-O3'
+    size_cflags='-Os'
 elif $cc -V 2>&1 | grep -q Sun; then
     cc_type=suncc
     cc_version="AV_STRINGIFY(__SUNPRO_C)"
     DEPEND_CMD='$(DEPCC) $(DEPFLAGS) $< | sed -e "1s,^.*: ,$@: ," -e "\$$!s,\$$, \\\," -e "1!s,^.*: , ," > $(@:.o=.d)'
     DEPFLAGS='$(CPPFLAGS) $(CFLAGS) -xM1'
+    speed_cflags='-O5'
+    size_cflags='-O5 -xspace'
     filter_cflags=suncc_flags
     suncc_flags(){
         for flag; do
@@ -1728,7 +1812,6 @@ elif $cc -V 2>&1 | grep -q Sun; then
                 -std=c99)             echo -xc99              ;;
                 -fomit-frame-pointer) echo -xregs=frameptr    ;;
                 -fPIC)                echo -KPIC -xcode=pic32 ;;
-                -Os)                  echo -O5 -xspace        ;;
                 -W*,*)                echo $flag              ;;
                 -f*-*|-W*)                                    ;;
                 *)                    echo $flag              ;;
@@ -1774,7 +1857,11 @@ if test "$cpu" = host; then
         gcc)
             check_native(){
                 $cc $1=native -v -c -o $TMPO $TMPC >$TMPE 2>&1 || return
-                awk "/$1=/{ match(\$0, /$1=(\\w+)/, a);print a[1];exit }" $TMPE
+                sed -n "/$1=/{
+                            s/.*$1=\\([^ ]*\\).*/\\1/
+                            p
+                            q
+                        }" $TMPE
             }
             cpu=$(check_native -march || check_native -mcpu)
         ;;
@@ -1832,32 +1919,44 @@ if test "$cpu" = generic; then
     : do nothing
 elif enabled ppc; then
 
-    case $cpu in
-        601|ppc601|PowerPC601)
+    case $(tolower $cpu) in
+        601|ppc601|powerpc601)
             cpuflags="-mcpu=601"
+            disable altivec
         ;;
-        603*|ppc603*|PowerPC603*)
+        603*|ppc603*|powerpc603*)
             cpuflags="-mcpu=603"
+            disable altivec
         ;;
-        604*|ppc604*|PowerPC604*)
+        604*|ppc604*|powerpc604*)
             cpuflags="-mcpu=604"
+            disable altivec
         ;;
-        G3|g3|75*|ppc75*|PowerPC75*)
+        g3|75*|ppc75*|powerpc75*)
             cpuflags="-mcpu=750 -mpowerpc-gfxopt"
+            disable altivec
         ;;
-        G4|g4|745*|ppc745*|PowerPC745*)
+        g4|745*|ppc745*|powerpc745*)
             cpuflags="-mcpu=7450 -mpowerpc-gfxopt"
         ;;
-        74*|ppc74*|PowerPC74*)
+        74*|ppc74*|powerpc74*)
             cpuflags="-mcpu=7400 -mpowerpc-gfxopt"
         ;;
-        G5|g5|970|ppc970|PowerPC970|power4*|Power4*)
+        g5|970|ppc970|powerpc970|power4*)
             cpuflags="-mcpu=970 -mpowerpc-gfxopt -mpowerpc64"
         ;;
-        Cell|CELL|cell)
+        cell)
             cpuflags="-mcpu=cell"
             enable ldbrx
         ;;
+        e500v2)
+            cpuflags="-mcpu=8548 -mhard-float -mfloat-gprs=double"
+            disable altivec
+        ;;
+        e500)
+            cpuflags="-mcpu=8540 -mhard-float"
+            disable altivec
+        ;;
     esac
 
 elif enabled x86; then
@@ -2018,6 +2117,7 @@ case $target_os in
         enabled x86 && SHFLAGS="-mimpure-text $SHFLAGS"
         network_extralibs="-lsocket -lnsl"
         add_cppflags -D__EXTENSIONS__
+        nm_opts='-P -g'
         ;;
     netbsd)
         oss_indev_extralibs="-lossaudio"
@@ -2057,8 +2157,6 @@ case $target_os in
             { check_cflags -mdynamic-no-pic && add_asflags -mdynamic-no-pic; }
         ;;
     mingw32*)
-        # Only WinXP or greater are supported
-        add_cflags -D_WIN32_WINNT=0x0501
         if test $target_os = "mingw32ce"; then
             disable network
         else
@@ -2093,7 +2191,7 @@ case $target_os in
             enabled_any avisynth vfwcap_indev &&
                 { check_cpp_condition w32api.h "(__W32API_MAJOR_VERSION > 3) || (__W32API_MAJOR_VERSION == 3 && __W32API_MINOR_VERSION >= 13)" ||
                   die "ERROR: avisynth and vfwcap_indev require w32api version 3.13 or later."; }
-            fi
+        fi
         ;;
     cygwin*)
         target_os=cygwin
@@ -2148,7 +2246,8 @@ case $target_os in
         ;;
     gnu)
         ;;
-
+    none)
+        ;;
     *)
         die "Unknown OS '$target_os'."
         ;;
@@ -2223,7 +2322,7 @@ enabled pic && enable_pic
 check_cc <<EOF || die "Symbol mangling check failed."
 int ff_extern;
 EOF
-sym=$($nm -P -g $TMPO | grep ff_extern)
+sym=$($nm $nm_opts $TMPO | awk '/ff_extern/{ print substr($0, match($0, /[^ \t]*ff_extern/)) }')
 extern_prefix=${sym%%ff_extern*}
 
 check_cc <<EOF && enable inline_asm
@@ -2241,10 +2340,14 @@ check_cc <<EOF && enable attribute_packed
 struct { int x; } __attribute__((packed)) x;
 EOF
 
+check_cc <<EOF && enable attribute_may_alias
+union { int x; } __attribute__((may_alias)) x;
+EOF
+
 check_cc <<EOF || die "endian test failed"
 unsigned int endian = 'B' << 24 | 'I' << 16 | 'G' << 8 | 'E';
 EOF
-od -A n -t x1 $TMPO | grep -q '42 *49 *47 *45' && enable bigendian
+od -t x1 $TMPO | grep -q '42 *49 *47 *45' && enable bigendian
 
 if enabled alpha; then
 
@@ -2383,9 +2486,10 @@ check_func  gethrtime
 check_func  getrusage
 check_func  inet_aton $network_extralibs
 check_func  isatty
-check_func  memalign
+check_func  ${malloc_prefix}memalign            && enable memalign
 check_func  mkstemp
-check_func  posix_memalign
+check_func  ${malloc_prefix}posix_memalign      && enable posix_memalign
+check_func  setrlimit
 check_func_headers io.h setmode
 check_func_headers lzo/lzo1x.h lzo1x_999_compress
 check_func_headers windows.h GetProcessTimes
@@ -2393,6 +2497,7 @@ check_func_headers windows.h VirtualAlloc
 
 check_header conio.h
 check_header dlfcn.h
+check_header dxva2api.h
 check_header malloc.h
 check_header poll.h
 check_header sys/mman.h
@@ -2403,6 +2508,8 @@ check_header vdpau/vdpau.h
 check_header vdpau/vdpau_x11.h
 check_header X11/extensions/XvMClib.h
 
+check_struct dxva2api.h DXVA_PictureParameters wDecodedPictureIndex
+
 if ! enabled_any memalign memalign_hack posix_memalign malloc_aligned &&
      enabled_any $need_memalign ; then
     die "Error, no aligned memory allocator but SSE enabled, disable it or use --enable-memalign-hack."
@@ -2440,25 +2547,25 @@ done
 check_lib math.h sin -lm
 check_lib va/va.h vaInitialize -lva
 
-check_func exp2
-check_func exp2f
-check_func llrint
-check_func log2
-check_func log2f
-check_func lrint
-check_func lrintf
-check_func round
-check_func roundf
-check_func truncf
+check_mathfunc exp2
+check_mathfunc exp2f
+check_mathfunc llrint
+check_mathfunc log2
+check_mathfunc log2f
+check_mathfunc lrint
+check_mathfunc lrintf
+check_mathfunc round
+check_mathfunc roundf
+check_mathfunc truncf
 
 # these are off by default, so fail if requested and not available
-enabled avisynth   && require2 vfw32 "windows.h vfw.h" AVIFileInit -lvfw32
+enabled avisynth   && require2 vfw32 "windows.h vfw.h" AVIFileInit -lavifil32
 enabled libdirac   && add_cflags $(pkg-config --cflags dirac) &&
                       require  libdirac libdirac_decoder/dirac_parser.h dirac_decoder_init $(pkg-config --libs dirac) &&
                       require  libdirac libdirac_encoder/dirac_encoder.h dirac_encoder_init $(pkg-config --libs dirac)
 enabled libfaac    && require2 libfaac "stdint.h faac.h" faacEncGetVersion -lfaac
 enabled libfaad    && require2 libfaad faad.h faacDecOpen -lfaad
-enabled libgsm     && require  libgsm gsm.h gsm_create -lgsm
+enabled libgsm     && require  libgsm gsm/gsm.h gsm_create -lgsm
 enabled libmp3lame && require  libmp3lame lame/lame.h lame_init -lmp3lame -lm
 enabled libnut     && require  libnut libnut.h nut_demuxer_init -lnut
 enabled libopencore_amrnb  && require libopencore_amrnb opencore-amrnb/interf_dec.h Decoder_Interface_init -lopencore-amrnb -lm
@@ -2499,7 +2606,10 @@ texi2html -version > /dev/null 2>&1 && enable texi2html || disable texi2html
 if enabled network; then
     check_type "sys/types.h sys/socket.h" socklen_t
     check_type netdb.h "struct addrinfo"
-    check_type sys/socket.h "struct sockaddr_storage"
+    check_type netinet/in.h "struct ipv6_mreq"
+    check_type netinet/in.h "struct sockaddr_in6"
+    check_type "sys/types.h sys/socket.h" "struct sockaddr_storage"
+    check_struct "sys/types.h sys/socket.h" "struct sockaddr" sa_len
     # Prefer arpa/inet.h over winsock2
     if check_header arpa/inet.h ; then
         check_func closesocket
@@ -2510,31 +2620,20 @@ if enabled network; then
             network_extralibs="-lws2_32"; }
         check_type ws2tcpip.h socklen_t
         check_type ws2tcpip.h "struct addrinfo"
+        check_type ws2tcpip.h "struct ipv6_mreq"
+        check_type ws2tcpip.h "struct sockaddr_in6"
         check_type ws2tcpip.h "struct sockaddr_storage"
+        check_struct winsock2.h "struct sockaddr" sa_len
     else
         disable network
     fi
 fi
 
-enabled_all network ipv6 && check_ld <<EOF || disable ipv6
-#include <sys/types.h>
-#include <sys/socket.h>
-#include <netinet/in.h>
-#include <netdb.h>
-int main(void) {
-    struct sockaddr_storage saddr;
-    struct ipv6_mreq mreq6;
-    getaddrinfo(0,0,0,0);
-    getnameinfo(0,0,0,0,0,0,0);
-    IN6_IS_ADDR_MULTICAST((const struct in6_addr *)0);
-}
-EOF
-
 check_header linux/videodev.h
 check_header linux/videodev2.h
 check_header sys/videoio.h
 
-check_func_headers "windows.h vfw.h" capCreateCaptureWindow -lvfw32
+check_func_headers "windows.h vfw.h" capCreateCaptureWindow "$vfwcap_indev_extralibs"
 
 # check for ioctl_meteor.h, ioctl_bt848.h and alternatives
 { check_header dev/bktr/ioctl_meteor.h &&
@@ -2594,19 +2693,10 @@ test_ldflags -Wl,--version-script,$TMPV &&
     append SHFLAGS '-Wl,--version-script,\$(SUBDIR)lib\$(NAME).ver'
 
 if enabled small; then
-    check_cflags -Os            # not all compilers support -Os
+    add_cflags $size_cflags
     optimizations="small"
 elif enabled optimizations; then
-    if enabled xlc; then
-        add_cflags  -O5
-        add_ldflags -O5
-    elif enabled suncc; then
-        add_cflags -O5
-    elif enabled ccc; then
-        add_cflags -fast
-    else
-        add_cflags -O3
-    fi
+    add_cflags $speed_cflags
 fi
 check_cflags -fno-math-errno
 check_cflags -fno-signed-zeros
@@ -2638,6 +2728,11 @@ elif enabled gcc; then
     check_cflags -fno-tree-vectorize
 elif enabled clang; then
     check_cflags -Qunused-arguments
+elif enabled armcc; then
+    # 2523: use of inline assembler is deprecated
+    add_cflags -Wrvct,--diag_suppress=2523
+elif enabled tms470; then
+    add_cflags -pds=824 -pds=837
 fi
 
 if enabled gprof; then
@@ -2735,9 +2830,6 @@ echo "postprocessing support    ${postproc-no}"
 echo "new filter support        ${avfilter-no}"
 echo "filters using lavformat   ${avfilter_lavf-no}"
 echo "network support           ${network-no}"
-if enabled network; then
-    echo "IPv6 support              ${ipv6-no}"
-fi
 echo "threading support         ${thread_type-no}"
 echo "SDL support               ${sdl-no}"
 echo "Sun medialib support      ${mlib-no}"
@@ -2933,6 +3025,9 @@ cat > $TMPH <<EOF
 #define EXTERN_ASM ${extern_prefix}
 EOF
 
+test -n "$malloc_prefix" &&
+    echo "#define MALLOC_PREFIX $malloc_prefix" >>$TMPH
+
 if enabled small || disabled optimizations; then
     echo "#define av_always_inline"  >> $TMPH
 fi