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#!/bin/sh
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# default parameters
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prefix="/usr/local"
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cc="gcc"
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ar="ar"
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cpu=`uname -m`
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case "$cpu" in
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  i386|i486|i586|i686)
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    cpu="x86"
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    mmx="yes"
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  ;;
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  armv4l)
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    cpu="armv4l"
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    mmx="no"
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  ;;
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  *)
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    mmx="no"
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  ;;
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esac
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gprof="no"
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mp3lib="yes"
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grab="yes"
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win32="no"
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if [ "$1" = "-h" -o "$1" = "--help" ] ; then
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cat << EOF
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Usage: configure [options]
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Options: [defaults in brackets after descriptions]
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  --help                  print this message
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EOF
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echo "  --prefix=PREFIX         install in PREFIX [$prefix]"
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echo "  --cc=CC                 use C compiler CC [$cc]"
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echo "  --cpu=CPU               force cpu to CPU  [$cpu]"
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echo "  --disable-mmx           disable mmx usage"
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echo "  --enable-gprof          enable profiling with gprof [$gprof]"
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echo "  --disable-mp3lib        disable mp3 lib compiling"
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echo "  --disable-grab          disable audio/video grabbing code"
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echo "  --enable-win32          enable win32 cross compile"
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exit 1
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fi
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for opt do
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  case "$opt" in
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  --prefix=*) prefix=`echo $opt | cut -d '=' -f 2`
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  ;;
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  --cc=*) cc=`echo $opt | cut -d '=' -f 2`
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  ;;
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  --cpu=*) cpu=`echo $opt | cut -d '=' -f 2`
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  ;;
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  --disable-mmx) mmx="no"
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  ;;
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  --enable-gprof) gprof="yes"
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  ;;
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  --disable-mp3lib) mp3lib="no"
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  ;;
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  --disable-grab) grab="no"
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  ;;
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  --enable-win32) win32="yes"
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  ;;
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  esac
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done
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# Checking for CFLAGS
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if test -z "$CFLAGS"; then
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    CFLAGS="-O2"
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fi
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if [ "$win32" = "yes" ] ; then
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    cross_prefix="i386-mingw32msvc-"
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    cc="${cross_prefix}gcc"
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    ar="${cross_prefix}ar"
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    grab="no"
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fi
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echo "Install prefix   $prefix"
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echo "C compiler       $cc"
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echo "CPU              $cpu"
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echo "MMX enabled      $mmx"
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echo "gprof enabled    $gprof"
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echo "grab enabled     $grab"
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echo "Creating config.mak and config.h"
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echo "# Automatically generated by configure - do not modify" > config.mak
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echo "/* Automatically generated by configure - do not modify */" > config.h
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echo "prefix=$prefix" >> config.mak
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echo "MAKE=make" >> config.mak
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echo "CC=$cc" >> config.mak
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echo "AR=$ar" >> config.mak
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echo "OPTFLAGS=$CFLAGS" >> config.mak
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if [ "$cpu" = "x86" ] ; then
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  echo "TARGET_ARCH_X86=yes" >> config.mak
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  echo "#define ARCH_X86 1" >> config.h
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fi
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if [ "$cpu" = "armv4l" ]; then
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  echo "TARGET_ARCH_ARMV4L=yes" >> config.mak
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  echo "#define ARCH_ARMV4L 1" >> config.h
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fi
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if [ "$mmx" = "yes" ] ; then
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  echo "TARGET_MMX=yes" >> config.mak
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  echo "#define HAVE_MMX 1" >> config.h
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fi
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if [ "$gprof" = "yes" ] ; then
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  echo "TARGET_GPROF=yes" >> config.mak
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  echo "#define HAVE_GPROF 1" >> config.h
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fi
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# if you do not want to use encoders, disable that.
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echo "#define CONFIG_ENCODERS 1" >> config.h
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echo "CONFIG_ENCODERS=yes" >> config.mak
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# if you do not want to use decoders, disable that.
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echo "#define CONFIG_DECODERS 1" >> config.h
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echo "CONFIG_DECODERS=yes" >> config.mak
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# special AC3 and MPGLIB enabling stuff in case you already have it
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# without libavcodec.
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echo "#define CONFIG_AC3 1" >> config.h
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echo "CONFIG_AC3=yes" >> config.mak
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if [ "$mp3lib" = "yes" ] ; then
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  echo "#define CONFIG_MPGLIB 1" >> config.h
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  echo "CONFIG_MPGLIB=yes" >> config.mak
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fi
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if [ "$grab" = "yes" ] ; then
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  echo "#define CONFIG_GRAB 1" >> config.h
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  echo "CONFIG_GRAB=yes" >> config.mak
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fi
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if [ "$win32" = "yes" ] ; then
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  echo "#define CONFIG_WIN32 1" >> config.h
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  echo "CONFIG_WIN32=yes" >> config.mak
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fi