]> git.sesse.net Git - x264/blobdiff - configure
configure test for endianness
[x264] / configure
index 3d00d1bda0a566ce40be0901c491fece60788db8..6f82da2f4229dfc7be4d7f160b82dd65220ca311 100755 (executable)
--- a/configure
+++ b/configure
@@ -19,23 +19,29 @@ 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 ""
 exit 1
 fi
 
 cc_check() {
-    rm -f conftest*
     cat > conftest.c << EOF
 #include <$1>
 int main () { $3 return 0; }
 EOF
     $CC conftest.c $CFLAGS $LDFLAGS $2 -o conftest 2>$DEVNULL
     TMP="$?"
-    rm -f conftest*
     return $TMP
 }
 
-rm -f config.h config.mak x264.pc
+as_check() {
+    echo "$1" > conftest.asm
+    $AS conftest.asm $ASFLAGS $2 -o conftest.o 2>$DEVNULL
+    TMP="$?"
+    return $TMP
+}
+
+rm -f config.h config.mak x264.pc conftest*
 
 prefix='/usr/local'
 exec_prefix='${prefix}'
@@ -55,11 +61,11 @@ vis="no"
 shared="no"
 
 CC="${CC-gcc}"
-CFLAGS="-Wall -I. -D__X264__"
-LDFLAGS=""
+CFLAGS="$CFLAGS -Wall -I."
+LDFLAGS="$LDFLAGS"
 HAVE_GETOPT_LONG=1
 
-AS="nasm"
+AS="yasm"
 ASFLAGS=""
 
 EXE=""
@@ -76,9 +82,100 @@ else
   exit 1
 fi
 
-MACHINE="$(./config.guess)"
+# parse options
 
-case "${MACHINE#*-*-}" in
+for opt do
+    optarg="${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 ${opt#--extra-cflags=}"
+            ;;
+        --extra-ldflags=*)
+            LDFLAGS="$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="$LDFLAGS -pg"
+            gprof="yes"
+            ;;
+        --enable-pic)
+            pic="yes"
+            ;;
+        --enable-gtk)
+            gtk="yes"
+            ;;
+        --disable-gtk)
+            gtk="no"
+            ;;
+        --enable-shared)
+            shared="yes"
+            ;;
+        --enable-visualize)
+            LDFLAGS="$LDFLAGS -L/usr/X11R6/lib -lX11"
+            CFLAGS="$CFLAGS -DVISUALIZE=1"
+            vis="yes"
+            ;;
+        --host=*)
+            host="${opt#--host=}"
+            ;;
+        *)
+            echo "Unknown option $opt, ignored"
+            ;;
+    esac
+done
+
+if [ "x$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"
@@ -130,16 +227,15 @@ case "${MACHINE#*-*-}" in
     HAVE_GETOPT_LONG=0
     ;;
   *)
-    echo "Unknown system $MACHINE, edit the configure"
+    echo "Unknown system $host, edit the configure"
     exit 1
     ;;
 esac
 
-case "${MACHINE%%-*}" in
+case $host_cpu in
   i*86)
     ARCH="X86"
-    CFLAGS="$CFLAGS -DHAVE_MMXEXT -DHAVE_SSE2"
-    AS="nasm"
+    AS="yasm"
     ASFLAGS="-O2"
     if [ "$SYS" = MACOSX ]; then
       ASFLAGS="$ASFLAGS -f macho -DPREFIX"
@@ -150,20 +246,26 @@ case "${MACHINE%%-*}" in
     else
       ASFLAGS="$ASFLAGS -f elf"
     fi
+    as_check || AS="nasm"
     ;;
   x86_64)
     ARCH="X86_64"
-    CFLAGS="$CFLAGS -DHAVE_MMXEXT -DHAVE_SSE2"
     AS="yasm"
-    ASFLAGS="-f elf -m amd64"
+    if [ "$SYS" = MACOSX ];then
+      ASFLAGS="-f macho64 -m amd64 -D__PIC__ -DPREFIX"
+      CFLAGS="$CFLAGS -arch x86_64"
+      LDFLAGS="$LDFLAGS -arch x86_64"
+    else
+      ASFLAGS="-f elf -m amd64"
+    fi
     ;;
   powerpc|powerpc64)
     ARCH="PPC"
     if [ $SYS = MACOSX ]
     then
-      CFLAGS="$CFLAGS -faltivec -fastf -mcpu=G4"
+      ALTIVECFLAGS="$ALTIVECFLAGS -faltivec -fastf -mcpu=G4"
     else
-      CFLAGS="$CFLAGS -maltivec -mabi=altivec"
+      ALTIVECFLAGS="$ALTIVECFLAGS -maltivec -mabi=altivec"
     fi
     ;;
   sparc)
@@ -190,12 +292,16 @@ case "${MACHINE%%-*}" in
     ARCH="PARISC"
     ;;
   *)
-    ARCH="$(echo ${MACHINE%%-*} | tr a-z A-Z)"
+    ARCH="$(echo $host_cpu | tr a-z A-Z)"
     ;;
 esac
 
 # check requirements
 
+if [ $shared = yes -a \( $ARCH = "X86_64" -o $ARCH = "PPC" -o $ARCH = "ALPHA" \) ] ; then
+    pic="yes"
+fi
+
 if [ $SYS = MACOSX -a $ARCH = X86 ]
 then
   # we want Apple's nasm from Xcode 2.4.1 or later
@@ -205,92 +311,29 @@ then
   then
     echo "Your version of 'nasm' is too old."
     echo "Please install Xcode 2.4.1 or later."
-    exit 1
+    AS=""
   fi
 fi
 
+if [ $ARCH = X86 -o $ARCH = X86_64 ] ; then
+    if as_check ; then
+        CFLAGS="$CFLAGS -DHAVE_MMX"
+        if as_check "pabsw xmm0, xmm0" ; then
+            ASFLAGS="$ASFLAGS -DHAVE_SSE3"
+            CFLAGS="$CFLAGS -DHAVE_SSE3"
+        fi
+    else
+        echo "No suitable assembler found.  x264 will be several times slower."
+        echo "Please install 'yasm' to get MMX/SSE optimized code."
+        AS=""
+    fi
+fi
+
 CFLAGS="$CFLAGS -DARCH_$ARCH -DSYS_$SYS"
 
-# 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="$optarg"
-            ;;
-        --enable-avis-input)
-            avis_input="yes"
-            ;;
-        --disable-avis-input)
-            avis_input="no"
-            ;;
-        --enable-mp4-output)
-            mp4_output="yes"
-            ;;
-        --disable-mp4-output)
-            mp4_output="no"
-            ;;
-        --extra-asflags=*)
-            ASFLAGS="$ASFLAGS ${opt#--extra-asflags=}"
-            ;;
-        --extra-cflags=*)
-            CFLAGS="$CFLAGS ${opt#--extra-cflags=}"
-            ;;
-        --extra-ldflags=*)
-            LDFLAGS="$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-gtk)
-            gtk="yes"
-            ;;
-        --disable-gtk)
-            gtk="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 $opt, ignored"
-            ;;
-    esac
-done
+echo "unsigned int endian = 'B' << 24 | 'I' << 16 | 'G' << 8 | 'E';" > conftest.c
+$CC $CFLAGS conftest.c -c -o conftest.o 2>$DEVNULL || die "endian test failed"
+grep -q BIGE conftest.o && CFLAGS="$CFLAGS -DWORDS_BIGENDIAN"
 
 # autodetect options that weren't forced nor disabled
 
@@ -310,7 +353,7 @@ if test "$pthread" = "auto" ; then
                 libpthread="-lpthreadGC2"
             elif cc_check pthread.h "-lpthreadGC2 -lwsock32 -DPTW32_STATIC_LIB" "pthread_create(0,0,0,0);" ; then
                 pthread="yes"
-                libpthread="-lpthreadGC2 -lwsock32"\
+                libpthread="-lpthreadGC2 -lwsock32"
                 CFLAGS="$CFLAGS -DPTW32_STATIC_LIB"
             fi
             ;;
@@ -352,6 +395,8 @@ fi
 if [ "$pic" = "yes" ] ; then
     CFLAGS="$CFLAGS -fPIC"
     ASFLAGS="$ASFLAGS -D__PIC__"
+    # resolve textrels in the x86 asm
+    cc_check stdio.h -Wl,-Bsymbolic && LDFLAGS="$LDFLAGS -Wl,-Bsymbolic"
 fi
 
 if [ "$debug" != "yes" -a "$gprof" != "yes" ]; then
@@ -373,6 +418,8 @@ 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
@@ -385,6 +432,7 @@ ARCH=$ARCH
 SYS=$SYS
 CC=$CC
 CFLAGS=$CFLAGS
+ALTIVECFLAGS=$ALTIVECFLAGS
 LDFLAGS=$LDFLAGS
 AS=$AS
 ASFLAGS=$ASFLAGS