]> git.sesse.net Git - x264/blobdiff - configure
Eliminate intentional array overflow in quant matrix handling
[x264] / configure
index 419981625bed817ac0f295d0b8f331610cc8ed4b..e9ff21ceb41bc2b90de577c5876c74b24f75a151 100755 (executable)
--- a/configure
+++ b/configure
@@ -1,4 +1,4 @@
-#! /bin/sh
+#!/bin/bash
 
 if test x"$1" = x"-h" -o x"$1" = x"--help" ; then
 
@@ -7,10 +7,12 @@ echo ""
 echo "available options:"
 echo ""
 echo "  --help                   print this message"
-echo "  --enable-avis-input      enables avisynth input (win32 only)"
-echo "  --enable-mp4-output      enables mp4 output (using gpac)"
-echo "  --enable-vfw             compiles the VfW frontend"
-echo "  --enable-pthread         enables multithreaded encoding"
+echo "  --disable-avs-input      disables avisynth input (win32 only)"
+echo "  --disable-lavf-input     disables libavformat input"
+echo "  --disable-ffms-input     disables ffmpegsource input"
+echo "  --disable-mp4-output     disables mp4 output (using gpac)"
+echo "  --disable-pthread        disables multithreaded encoding"
+echo "  --disable-asm            disables assembly optimizations on x86 and arm"
 echo "  --enable-debug           adds -g, doesn't strip"
 echo "  --enable-gprof           adds -pg, doesn't strip"
 echo "  --enable-visualize       enables visualization (X11 only)"
@@ -19,23 +21,30 @@ echo "  --enable-shared          build libx264.so"
 echo "  --extra-asflags=EASFLAGS add EASFLAGS to ASFLAGS"
 echo "  --extra-cflags=ECFLAGS   add ECFLAGS to CFLAGS"
 echo "  --extra-ldflags=ELDFLAGS add ELDFLAGS to LDFLAGS"
+echo "  --host=HOST              build programs to run on HOST"
+echo "  --cross-prefix=PREFIX    use PREFIX for compilation tools"
 echo ""
 exit 1
 fi
 
 cc_check() {
-    rm -f conftest*
-    cat > conftest.c << EOF
-#include <$1>
-int main () { $3 return 0; }
-EOF
-    $CC $CFLAGS $LDFLAGS $2 conftest.c -o conftest 2>$DEVNULL
-    TMP="$?"
-    rm -f conftest.c conftest*
-    return $TMP
+    rm -f conftest.c
+    [ -n "$1" ] && echo "#include <$1>" > conftest.c
+    echo "int main () { $3 return 0; }" >> conftest.c
+    $CC conftest.c $CFLAGS $LDFLAGS $LDFLAGSCLI $2 -o conftest 2>$DEVNULL
 }
 
-rm -f config.h config.mak x264.pc
+as_check() {
+    echo "$1" > conftest.asm
+    $AS conftest.asm $ASFLAGS $2 -o conftest.o 2>$DEVNULL
+}
+
+die() {
+    echo "$@"
+    exit 1
+}
+
+rm -f config.h config.mak x264.pc conftest*
 
 prefix='/usr/local'
 exec_prefix='${prefix}'
@@ -44,130 +53,261 @@ libdir='${exec_prefix}/lib'
 includedir='${prefix}/include'
 DEVNULL='/dev/null'
 
-avis_input="auto"
+avs_input="auto"
+lavf_input="auto"
+ffms_input="auto"
 mp4_output="auto"
 pthread="auto"
+asm="yes"
 debug="no"
 gprof="no"
 pic="no"
-vfw="no"
 vis="no"
 shared="no"
 
-CC="gcc"
-CFLAGS="-Wall -I. -O4 -ffast-math -D__X264__"
-LDFLAGS=""
+CFLAGS="$CFLAGS -Wall -I."
+LDFLAGS="$LDFLAGS"
+LDFLAGSCLI="$LDFLAGSCLI"
+ASFLAGS="$ASFLAGS"
 HAVE_GETOPT_LONG=1
-
-AS="nasm"
-ASFLAGS=""
+cross_prefix=""
 
 EXE=""
 
-UNAMES="`uname -s`"
-case "$UNAMES" in
-  BeOS)
+# parse options
+
+for opt do
+    optarg="${opt#*=}"
+    case "$opt" in
+        --prefix=*)
+            prefix="$optarg"
+            ;;
+        --exec-prefix=*)
+            exec_prefix="$optarg"
+            ;;
+        --bindir=*)
+            bindir="$optarg"
+            ;;
+        --libdir=*)
+            libdir="$optarg"
+            ;;
+        --includedir=*)
+            includedir="$optarg"
+            ;;
+        --enable-asm)
+            asm="yes"
+            ;;
+        --disable-asm)
+            asm="no"
+            ;;
+        --enable-avs-input)
+            avs_input="auto"
+            ;;
+        --disable-avs-input)
+            avs_input="no"
+            ;;
+        --enable-lavf-input)
+            lavf_input="auto"
+            ;;
+        --disable-lavf-input)
+            lavf_input="no"
+            ;;
+        --enable-ffms-input)
+            ffms_input="auto"
+            ;;
+        --disable-ffms-input)
+            ffms_input="no"
+            ;;
+        --enable-mp4-output)
+            mp4_output="yes"
+            ;;
+        --disable-mp4-output)
+            mp4_output="no"
+            ;;
+        --extra-asflags=*)
+            ASFLAGS="$ASFLAGS ${opt#--extra-asflags=}"
+            ;;
+        --extra-cflags=*)
+            CFLAGS="$CFLAGS ${opt#--extra-cflags=}"
+            ;;
+        --extra-ldflags=*)
+            LDFLAGS="$LDFLAGS ${opt#--extra-ldflags=}"
+            ;;
+        --enable-pthread)
+            pthread="auto" # can't skip detection, since it differs by OS
+            ;;
+        --disable-pthread)
+            pthread="no"
+            ;;
+        --enable-debug)
+            debug="yes"
+            ;;
+        --enable-gprof)
+            CFLAGS="$CFLAGS -pg"
+            LDFLAGS="$LDFLAGS -pg"
+            gprof="yes"
+            ;;
+        --enable-pic)
+            pic="yes"
+            ;;
+        --enable-shared)
+            shared="yes"
+            ;;
+        --enable-visualize)
+            LDFLAGS="$LDFLAGS -L/usr/X11R6/lib -lX11"
+            CFLAGS="$CFLAGS -DVISUALIZE=1"
+            vis="yes"
+            ;;
+        --host=*)
+            host="${opt#--host=}"
+            ;;
+        --cross-prefix=*)
+            cross_prefix="${opt#--cross-prefix=}"
+            ;;
+        *)
+            echo "Unknown option $opt, ignored"
+            ;;
+    esac
+done
+
+CC="${CC-${cross_prefix}gcc}"
+AR="${AR-${cross_prefix}ar}"
+RANLIB="${RANLIB-${cross_prefix}ranlib}"
+STRIP="${STRIP-${cross_prefix}strip}"
+
+if [ "x$host" = x ]; then
+    host=`./config.guess`
+fi
+# normalize a triplet into a quadruplet
+host=`./config.sub $host`
+
+# split $host
+host_cpu="${host%%-*}"
+host="${host#*-}"
+host_vendor="${host%%-*}"
+host_os="${host#*-}"
+
+case $host_os in
+  beos*)
     SYS="BEOS"
     CFLAGS="$CFLAGS -DHAVE_MALLOC_H"
     ;;
-  Darwin)
+  darwin*)
     SYS="MACOSX"
     CFLAGS="$CFLAGS -falign-loops=16"
-    LDFLAGS="$LDFLAGS -lm -lmx"
+    LDFLAGS="$LDFLAGS -lm"
+    if [ "$pic" = "no" ]; then
+        cc_check "" -mdynamic-no-pic && CFLAGS="$CFLAGS -mdynamic-no-pic"
+    fi
+    ;;
+  freebsd*)
+    SYS="FREEBSD"
+    LDFLAGS="$LDFLAGS -lm"
     ;;
-  FreeBSD)
+  kfreebsd*-gnu)
     SYS="FREEBSD"
+    CFLAGS="$CFLAGS -DHAVE_MALLOC_H"
     LDFLAGS="$LDFLAGS -lm"
     ;;
-  NetBSD)
+  netbsd*)
     SYS="NETBSD"
     LDFLAGS="$LDFLAGS -lm"
     ;;
-  Linux)
+  openbsd*)
+    SYS="OPENBSD"
+    CFLAGS="$CFLAGS -I/usr/X11R6/include"
+    LDFLAGS="$LDFLAGS -lm"
+    ;;
+  *linux*)
     SYS="LINUX"
     CFLAGS="$CFLAGS -DHAVE_MALLOC_H"
     LDFLAGS="$LDFLAGS -lm"
     ;;
-  CYGWIN*)
-    SYS="CYGWIN"
-    CFLAGS="$CFLAGS -mno-cygwin"
-    LDFLAGS="$LDFLAGS -mno-cygwin"
+  cygwin*)
+    SYS="MINGW"
     EXE=".exe"
     DEVNULL="NUL"
+    if cc_check "" -mno-cygwin; then
+        CFLAGS="$CFLAGS -mno-cygwin"
+        LDFLAGS="$LDFLAGS -mno-cygwin"
+    fi
     ;;
-  MINGW*)
+  mingw*)
     SYS="MINGW"
     EXE=".exe"
     DEVNULL="NUL"
     ;;
-  SunOS)
+  sunos*|solaris*)
     SYS="SunOS"
     CFLAGS="$CFLAGS -DHAVE_MALLOC_H"
     LDFLAGS="$LDFLAGS -lm"
     HAVE_GETOPT_LONG=0
     ;;
   *)
-    echo "Unknown system $UNAMES, edit the configure"
-    exit 1
+    die "Unknown system $host, edit the configure"
     ;;
 esac
 
-UNAMEM="`uname -m`"
-case "$UNAMEM" in
-  i386|i486|i586|i686|BePC)
+case $host_cpu in
+  i*86)
     ARCH="X86"
-    CFLAGS="$CFLAGS -DHAVE_MMXEXT -DHAVE_SSE2"
-    AS="nasm"
-    ASFLAGS="-O2"
+    AS="yasm"
+    ASFLAGS="$ASFLAGS -O2"
+    if [[ "$asm" == yes && "$CFLAGS" != *-march* ]]; then
+      CFLAGS="$CFLAGS -march=i686"
+    fi
+    if [[ "$asm" == yes && "$CFLAGS" != *-mfpmath* ]]; then
+      CFLAGS="$CFLAGS -mfpmath=sse -msse"
+    fi
     if [ "$SYS" = MACOSX ]; then
       ASFLAGS="$ASFLAGS -f macho -DPREFIX"
-    elif [ "$SYS" = CYGWIN -o "$SYS" = MINGW ]; then
+    elif [ "$SYS" = MINGW ]; then
       ASFLAGS="$ASFLAGS -f win32 -DPREFIX"
-    elif [ "$SYS" = NETBSD ]; then
-      ASFLAGS="$ASFLAGS -f aoutb"
     else
       ASFLAGS="$ASFLAGS -f elf"
     fi
     ;;
   x86_64)
     ARCH="X86_64"
-    CFLAGS="$CFLAGS -DHAVE_MMXEXT -DHAVE_SSE2"
     AS="yasm"
-    ASFLAGS="-f elf -m amd64"
+    if [ "$SYS" = MACOSX ];then
+      ASFLAGS="$ASFLAGS -f macho64 -m amd64 -DPIC -DPREFIX"
+      if cc_check '' "-arch x86_64"; then
+        CFLAGS="$CFLAGS -arch x86_64"
+        LDFLAGS="$LDFLAGS -arch x86_64"
+      fi
+    elif [ "$SYS" = MINGW ]; then
+      ASFLAGS="$ASFLAGS -f win32 -m amd64 -DPREFIX"
+    else
+      ASFLAGS="$ASFLAGS -f elf -m amd64"
+    fi
     ;;
-  "Power Macintosh"|ppc)
+  powerpc|powerpc64)
     ARCH="PPC"
     if [ $SYS = MACOSX ]
     then
-      CFLAGS="$CFLAGS -faltivec"
+      CFLAGS="$CFLAGS -faltivec -fastf -mcpu=G4"
     else
-      CFLAGS="$CFLAGS -maltivec -mabi=altivec"
+      CFLAGS="$CFLAGS -maltivec -mabi=altivec -DHAVE_ALTIVEC_H"
     fi
     ;;
-  sun4m|sun4d|sparc|sparc64)
-    ARCH="Sparc"
-    ;;
-  sun4u)
-    ARCH="UltraSparc"
-    CFLAGS="$CFLAGS -mcpu=ultrasparc"
-    LDFLAGS="$LDFLAGS -mcpu=ultrasparc"
-    AS="as"
-    ASFLAGS="-xarch=v8plusa"
-    ;;
-  ia64)
-    ARCH="IA64"
-    ;;
-  alpha)
-    ARCH="ALPHA"
+  sparc)
+    if test "$(uname -m)" = "sun4u"; then
+      ARCH="UltraSparc"
+      CFLAGS="$CFLAGS -mcpu=ultrasparc"
+      LDFLAGS="$LDFLAGS -mcpu=ultrasparc"
+      AS="${cross_prefix}as"
+      ASFLAGS="$ASFLAGS -xarch=v8plusa"
+    else
+      ARCH="Sparc"
+    fi
     ;;
-  mips|mipsel|mips64)
+  mips|mipsel|mips64|mips64el)
     ARCH="MIPS"
     ;;
-  m68k)
-    ARCH="M68K"
-    ;;
-  arm|armv5tel)
+  arm*)
     ARCH="ARM"
+    AS="${AS-${cross_prefix}gcc}"
     ;;
   s390|s390x)
     ARCH="S390"
@@ -176,122 +316,148 @@ case "$UNAMEM" in
     ARCH="PARISC"
     ;;
   *)
-    echo "Unknown platform $UNAMEM, edit the configure"
-    exit 1
+    ARCH="$(echo $host_cpu | tr a-z A-Z)"
     ;;
 esac
 
-CFLAGS="$CFLAGS -DARCH_$ARCH -DSYS_$SYS"
+# check requirements
 
-# parse options
+cc_check || die "No working C compiler found."
 
-for opt do
-    optarg="${opt#*=}"
-    case "$opt" in
-        --prefix=*)
-            prefix="$optarg"
-            ;;
-        --exec-prefix=*)
-            exec_prefix="$optarg"
-            ;;
-        --bindir=*)
-            bindir="$optarg"
-            ;;
-        --libdir=*)
-            libdir="$optarg"
-            ;;
-        --includedir=*)
-            includedir="$optarg"
-            ;;
-        --enable-avis-input)
-            avis_input="yes"
-            ;;
-        --disable-avis-input)
-            avis_input="no"
-            ;;
-        --enable-mp4-output)
-            mp4_output="yes"
-            ;;
-        --disable-mp4-output)
-            mp4_output="no"
-            ;;
-        --extra-asflags=*)
-            ASFLAGS="$ASFLAGS ${opt#--extra-asflags=}"
-            ;;
-        --extra-cflags=*)
-            CFLAGS="$CFLAGS ${opt#--extra-cflags=}"
-            VFW_CFLAGS="${opt#--extra-cflags=}"
-            ;;
-        --extra-ldflags=*)
-            LDFLAGS="$LDFLAGS ${opt#--extra-ldflags=}"
-            VFW_LDFLAGS="${opt#--extra-ldflags=}"
-            ;;
-        --enable-pthread)
-            pthread="yes"
-            ;;
-        --disable-pthread)
-            pthread="no"
-            ;;
-        --enable-debug)
-            CFLAGS="$CFLAGS -g"
-            debug="yes"
-            ;;
-        --enable-gprof)
-            CFLAGS="$CFLAGS -pg"
-            LDFLAGS="$LDFLAGS -pg"
-            gprof="yes"
-            ;;
-        --enable-pic)
-            pic="yes"
-            ;;
-        --enable-vfw)
-            vfw="yes"
-            ;;
-        --disable-vfw)
-            vfw="no"
-            ;;
-        --enable-shared)
-            shared="yes"
-            if [ $ARCH = "X86_64" -o $ARCH = "PPC" -o $ARCH = "ALPHA" ] ; then
-                pic="yes"
-            fi
-            ;;
-        --enable-visualize)
-            LDFLAGS="$LDFLAGS -L/usr/X11R6/lib -lX11"
-            CFLAGS="$CFLAGS -DVISUALIZE=1"
-            vis="yes"
-            ;;
-        *)
-            echo "Unknown option $opt, ignored"
-            ;;
-    esac
-done
+if [ $shared = yes -a \( $ARCH = "X86_64" -o $ARCH = "PPC" -o $ARCH = "ALPHA" -o $ARCH = "ARM" \) ] ; then
+    pic="yes"
+fi
+
+if [ $asm = yes -a \( $ARCH = X86 -o $ARCH = X86_64 \) ] ; then
+    if ! as_check "lzcnt eax, eax" ; then
+        VER=`($AS --version || echo no assembler) 2>$DEVNULL | head -n 1`
+        echo "Found $VER"
+        echo "Minimum version is yasm-0.6.2"
+        echo "If you really want to compile without asm, configure with --disable-asm."
+        exit 1
+    fi
+    if ! cc_check '' '' 'asm("pabsw %xmm0, %xmm0");' ; then
+        VER=`(as --version || echo no gnu as) 2>$DEVNULL | head -n 1`
+        echo "Found $VER"
+        echo "Minimum version is binutils-2.17"
+        echo "Your compiler can't handle inline SSSE3 asm."
+        echo "If you really want to compile without asm, configure with --disable-asm."
+        exit 1
+    fi
+    CFLAGS="$CFLAGS -DHAVE_MMX"
+fi
+
+if [ $asm = yes -a $ARCH = ARM ] ; then
+    # set flags so neon is built by default
+    echo $CFLAGS | grep -Eq '(-mcpu|-march|-mfpu|-mfloat-abi)' || CFLAGS="$CFLAGS -mcpu=cortex-a8 -mfpu=neon -mfloat-abi=softfp"
+
+    if  cc_check '' '' 'asm("rev ip, ip");' ; then      CFLAGS="$CFLAGS -DHAVE_ARMV6"
+        cc_check '' '' 'asm("movt r0, #0");'         && CFLAGS="$CFLAGS -DHAVE_ARMV6T2"
+        cc_check '' '' 'asm("vadd.i16 q0, q0, q0");' && CFLAGS="$CFLAGS -DHAVE_NEON"
+        ASFLAGS="$ASFLAGS $CFLAGS -c"
+    else
+        echo "You specified a pre-ARMv6 or Thumb-1 CPU in your CFLAGS."
+        echo "If you really want to run on such a CPU, configure with --disable-asm."
+        exit 1
+    fi
+fi
+
+[ $asm = no ] && AS=""
+[ "x$AS" = x ] && asm="no"
+
+CFLAGS="$CFLAGS -DARCH_$ARCH -DSYS_$SYS"
+
+echo "int i = 0x42494745; double f = 0x1.0656e6469616ep+102;" > conftest.c
+$CC $CFLAGS conftest.c -c -o conftest.o 2>$DEVNULL || die "endian test failed"
+if grep -q BIGE conftest.o && grep -q FPendian conftest.o ; then
+    CFLAGS="$CFLAGS -DWORDS_BIGENDIAN"
+elif !(grep -q EGIB conftest.o && grep -q naidnePF conftest.o) ; then
+    die "endian test failed"
+fi
 
 # autodetect options that weren't forced nor disabled
 
+libpthread=""
 if test "$pthread" = "auto" ; then
+    pthread="no"
     case $SYS in
-        MINGW|CYGWIN|BEOS)
+        BEOS)
             pthread="yes"
             ;;
+        MINGW)
+            if cc_check pthread.h -lpthread "pthread_create(0,0,0,0);" ; then
+                pthread="yes"
+                libpthread="-lpthread"
+            elif cc_check pthread.h -lpthreadGC2 "pthread_create(0,0,0,0);" ; then
+                pthread="yes"
+                libpthread="-lpthreadGC2"
+            elif cc_check pthread.h "-lpthreadGC2 -lwsock32 -DPTW32_STATIC_LIB" "pthread_create(0,0,0,0);" ; then
+                pthread="yes"
+                libpthread="-lpthreadGC2 -lwsock32"
+                CFLAGS="$CFLAGS -DPTW32_STATIC_LIB"
+            elif cc_check pthread.h "-lpthreadGC2 -lws2_32 -DPTW32_STATIC_LIB" "pthread_create(0,0,0,0);" ; then
+                pthread="yes"
+                libpthread="-lpthreadGC2 -lws2_32"
+                CFLAGS="$CFLAGS -DPTW32_STATIC_LIB"
+            fi
+            ;;
+        OPENBSD)
+            cc_check pthread.h -pthread && pthread="yes" && libpthread="-pthread"
+            ;;
         *)
-            pthread="no"
-            cc_check pthread.h -lpthread && pthread="yes"
+            cc_check pthread.h -lpthread && pthread="yes" && libpthread="-lpthread"
             ;;
     esac
 fi
 if test "$pthread" = "yes" ; then
     CFLAGS="$CFLAGS -DHAVE_PTHREAD"
-    case $SYS in
-        MINGW|CYGWIN|BEOS)
-            ;;
-        *) LDFLAGS="$LDFLAGS -lpthread"
-            ;;
-    esac
+    LDFLAGS="$LDFLAGS $libpthread"
+fi
+
+if [ "$lavf_input" = "auto" ] ; then
+    lavf_input="no"
+    if [ `pkg-config --exists libavformat libavcodec libswscale 2>$DEVNULL` ] ; then
+        LAVF_LDFLAGS="$LAVF_LDFLAGS $(pkg-config --libs libavformat libavcodec libswscale)"
+        LAVF_CDFLAGS="$LAVF_CFLAGS $(pkg-config --cflags libavformat libavcodec libswscale)"
+    fi
+    if [ -z "$LAVF_LDFLAGS" -a -z "$LAVF_CFLAGS" ]; then
+        LAVF_LDFLAGS="-lavformat -lswscale"
+        for lib in -lpostproc -lavcodec -lavutil -lm -lz -lbz2 $libpthread -lavifil32; do
+            cc_check "" $lib && LAVF_LDFLAGS="$LAVF_LDFLAGS $lib"
+        done
+    fi
+    LAVF_LDFLAGS="-L. $LAVF_LDFLAGS"
+    if cc_check libavformat/avformat.h "$LAVF_CFLAGS $LAVF_LDFLAGS" && \
+       cc_check libswscale/swscale.h "$LAVF_CFLAGS $LAVF_LDFLAGS" ; then
+        # avcodec_decode_video2 is currently the most recently added function that we use; it was added in r18351
+        if cc_check libavformat/avformat.h "$LAVF_CFLAGS $LAVF_LDFLAGS" "avcodec_decode_video2( NULL, NULL, NULL, NULL );" ; then
+            lavf_input="yes"
+            echo "#define LAVF_INPUT" >> config.h
+            LDFLAGSCLI="$LDFLAGSCLI $LAVF_LDFLAGS"
+            [ -n "$LAVF_CFLAGS" ] && CFLAGS="$CFLAGS $LAVF_CFLAGS"
+        else
+            echo "Warning: libavformat is too old, update to ffmpeg r18351+"
+        fi
+    fi
+fi
+
+if [ "$ffms_input" = "auto" ] ; then
+    ffms_input="no"
+    if [ "$lavf_input" = "yes" ] ; then
+        if cc_check ffms.h -lFFMS2 "FFMS_DestroyVideoSource(0);" ; then
+           ffms_input="yes"
+           echo "#define FFMS_INPUT" >> config.h
+           LDFLAGSCLI="$LDFLAGSCLI -lFFMS2"
+        elif cc_check ffms.h "-lFFMS2 $LAVF_LDFLAGS -lstdc++" "FFMS_DestroyVideoSource(0);" ; then
+           ffms_input="yes"
+           echo "#define FFMS_INPUT" >> config.h
+           LDFLAGSCLI="-lFFMS2 $LDFLAGSCLI -lstdc++"
+        fi
+    fi
 fi
 
 MP4_LDFLAGS="-lgpac_static"
-if [ $SYS = CYGWIN -o $SYS = MINGW ]; then
+if [ $SYS = MINGW ]; then
     MP4_LDFLAGS="$MP4_LDFLAGS -lwinmm"
 fi
 if [ "$mp4_output" = "auto" ] ; then
@@ -300,30 +466,41 @@ if [ "$mp4_output" = "auto" ] ; then
 fi
 if [ "$mp4_output" = "yes" ] ; then
     echo "#define MP4_OUTPUT" >> config.h
-    LDFLAGS="$LDFLAGS $MP4_LDFLAGS"
+    LDFLAGSCLI="$LDFLAGSCLI $MP4_LDFLAGS"
 fi
 
-if [ "$avis_input" = "auto" ] ; then
-    if [ $SYS = CYGWIN -o $SYS = MINGW ]; then
-        avis_input="yes"
-    else
-        avis_input="no";
+if [ "$avs_input" = "auto" ] ; then
+    avs_input=no
+    if [ $SYS = MINGW ] && cc_check avisynth_c.h ; then
+        avs_input="yes"
+        echo "#define AVS_INPUT" >> config.h
+        echo "#define HAVE_AVISYNTH_C_H" >> config.h
+    elif [ $SYS = MINGW ] && cc_check extras/avisynth_c.h ; then
+        avs_input="yes"
+        echo "#define AVS_INPUT" >> config.h
     fi
 fi
-if [ "$avis_input" = "yes" ] ; then
-    echo "#define AVIS_INPUT" >> config.h
-    LDFLAGS="$LDFLAGS -lvfw32"
-fi
 
 if [ "$pic" = "yes" ] ; then
     CFLAGS="$CFLAGS -fPIC"
-    ASFLAGS="$ASFLAGS -D__PIC__"
+    ASFLAGS="$ASFLAGS -DPIC"
+    # resolve textrels in the x86 asm
+    cc_check stdio.h -Wl,-Bsymbolic && LDFLAGS="$LDFLAGS -Wl,-Bsymbolic"
 fi
 
 if [ "$debug" != "yes" -a "$gprof" != "yes" ]; then
     CFLAGS="$CFLAGS -s -fomit-frame-pointer"
     LDFLAGS="$LDFLAGS -s"
-    VFW_LDFLAGS="$VFW_LDFLAGS -s"
+fi
+
+if [ "$debug" = "yes" ]; then
+    CFLAGS="-O1 -g $CFLAGS"
+elif [ $ARCH = ARM ]; then
+    # arm-gcc-4.2 produces incorrect output with -ffast-math
+    # and it doesn't save any speed anyway on 4.4, so disable it
+    CFLAGS="-O4 -fno-fast-math $CFLAGS"
+else
+    CFLAGS="-O4 -ffast-math $CFLAGS"
 fi
 
 if cc_check "stdio.h" "" "fseeko(stdin,0,0);" ; then
@@ -334,6 +511,8 @@ elif cc_check "stdio.h" "" "fseeko64(stdin,0,0);" ; then
     echo "#define ftell ftello64" >> config.h
 fi
 
+rm -f conftest*
+
 # generate config files
 
 cat > config.mak << EOF
@@ -347,42 +526,43 @@ SYS=$SYS
 CC=$CC
 CFLAGS=$CFLAGS
 LDFLAGS=$LDFLAGS
+LDFLAGSCLI=$LDFLAGSCLI
+AR=$AR
+RANLIB=$RANLIB
+STRIP=$STRIP
 AS=$AS
 ASFLAGS=$ASFLAGS
-VFW=$vfw
 EXE=$EXE
 VIS=$vis
 HAVE_GETOPT_LONG=$HAVE_GETOPT_LONG
 DEVNULL=$DEVNULL
-CONFIGURE_ARGS=$@
 EOF
 
-if [ "$vfw" = "yes" ]; then
-    rm -f vfw/build/cygwin/config.mak
-    cat > vfw/build/cygwin/config.mak << EOF
-CFLAGS=$VFW_CFLAGS
-LDFLAGS=$VFW_LDFLAGS
-EOF
-    echo "default: x264vfw.dll" >> config.mak
-fi
-
 if [ "$shared" = "yes" ]; then
-    API=`grep '#define X264_BUILD' < x264.h | cut -f 3 -d ' '`
-    echo "SONAME=libx264.so.$API" >> config.mak
+    API=$(grep '#define X264_BUILD' < x264.h | cut -f 3 -d ' ')
+    if [ "$SYS" = "MINGW" ]; then
+        echo "SONAME=libx264-$API.dll" >> config.mak
+        echo 'IMPLIBNAME=libx264.dll.a' >> config.mak
+        echo 'SOFLAGS=-Wl,--out-implib,$(IMPLIBNAME) -Wl,--enable-auto-image-base' >> config.mak
+    elif [ "$SYS" = "MACOSX" ]; then
+        echo "SOSUFFIX=dylib" >> config.mak
+        echo "SONAME=libx264.$API.dylib" >> config.mak
+        echo 'SOFLAGS=-dynamiclib -Wl,-single_module -Wl,-read_only_relocs,suppress -install_name $(DESTDIR)$(libdir)/$(SONAME)' >> config.mak
+    elif [ "$SYS" = "SunOS" ]; then
+        echo "SOSUFFIX=so" >> config.mak
+        echo "SONAME=libx264.so.$API" >> config.mak
+        echo 'SOFLAGS=-Wl,-h,$(SONAME)' >> config.mak
+    else
+        echo "SOSUFFIX=so" >> config.mak
+        echo "SONAME=libx264.so.$API" >> config.mak
+        echo 'SOFLAGS=-Wl,-soname,$(SONAME)' >> config.mak
+    fi
     echo 'default: $(SONAME)' >> config.mak
 fi
 
 ./version.sh
 
-pclibs="-L$libdir -lx264"
-if test "$pthread" = "yes" ; then
-  case $SYS in
-    MINGW|CYGWIN|BEOS)
-      ;;
-    *) pclibs="$pclibs -lpthread"
-      ;;
-  esac
-fi
+pclibs="-L$libdir -lx264 $libpthread"
 
 cat > x264.pc << EOF
 prefix=$prefix
@@ -400,10 +580,12 @@ EOF
 
 echo "Platform:   $ARCH"
 echo "System:     $SYS"
-echo "avis input: $avis_input"
+echo "asm:        $asm"
+echo "avs input:  $avs_input"
+echo "lavf input: $lavf_input"
+echo "ffms input: $ffms_input"
 echo "mp4 output: $mp4_output"
 echo "pthread:    $pthread"
-echo "vfw:        $vfw"
 echo "debug:      $debug"
 echo "gprof:      $gprof"
 echo "PIC:        $pic"