configure

   1 #!/bin/sh
   2 #
   3 # qemu configure script (c) 2003 Fabrice Bellard
   4 #
   5 # set temporary file name
   6 if test ! -z "$TMPDIR" ; then
   7     TMPDIR1="${TMPDIR}"
   8 elif test ! -z "$TEMPDIR" ; then
   9     TMPDIR1="${TEMPDIR}"
  10 else
  11     TMPDIR1="/tmp"
  12 fi
  13
  14 TMPC="${TMPDIR1}/qemu-conf-${RANDOM}-$$-${RANDOM}.c"
  15 TMPO="${TMPDIR1}/qemu-conf-${RANDOM}-$$-${RANDOM}.o"
  16 TMPE="${TMPDIR1}/qemu-conf-${RANDOM}-$$-${RANDOM}"
  17 TMPS="${TMPDIR1}/qemu-conf-${RANDOM}-$$-${RANDOM}.S"
  18 TMPH="${TMPDIR1}/qemu-conf-${RANDOM}-$$-${RANDOM}.h"
  19
  20 # default parameters
  21 prefix="/usr/local"
  22 interp_prefix="/usr/gnemul/qemu-i386"
  23 cross_prefix=""
  24 cc="gcc"
  25 host_cc="gcc"
  26 ar="ar"
  27 make="make"
  28 strip="strip"
  29 cpu=`uname -m`
  30 case "$cpu" in
  31   i386|i486|i586|i686|i86pc|BePC)
  32     cpu="x86"
  33   ;;
  34   armv4l)
  35     cpu="armv4l"
  36   ;;
  37   alpha)
  38     cpu="alpha"
  39   ;;
  40   "Power Macintosh"|ppc|ppc64)
  41     cpu="powerpc"
  42   ;;
  43   mips)
  44     cpu="mips"
  45   ;;
  46   s390)
  47     cpu="s390"
  48   ;;
  49   *)
  50     cpu="unknown"
  51   ;;
  52 esac
  53 gprof="no"
  54 bigendian="no"
  55
  56 # OS specific
  57 targetos=`uname -s`
  58 case $targetos in
  59 *) ;;
  60 esac
  61
  62 # find source path
  63 # XXX: we assume an absolute path is given when launching configure,
  64 # except in './configure' case.
  65 source_path=${0%configure}
  66 source_path=${source_path%/}
  67 source_path_used="yes"
  68 if test -z "$source_path" -o "$source_path" = "." ; then
  69     source_path=`pwd`
  70     source_path_used="no"
  71 fi
  72
  73 for opt do
  74   case "$opt" in
  75   --prefix=*) prefix=`echo $opt | cut -d '=' -f 2`
  76   ;;
  77   --interp-prefix=*) interp_prefix=`echo $opt | cut -d '=' -f 2`
  78   ;;
  79   --source-path=*) source_path=`echo $opt | cut -d '=' -f 2`
  80   ;;
  81   --cross-prefix=*) cross_prefix=`echo $opt | cut -d '=' -f 2`
  82   ;;
  83   --cc=*) cc=`echo $opt | cut -d '=' -f 2`
  84   ;;
  85   --make=*) make=`echo $opt | cut -d '=' -f 2`
  86   ;;
  87   --extra-cflags=*) CFLAGS="${opt#--extra-cflags=}"
  88   ;;
  89   --extra-ldflags=*) LDFLAGS="${opt#--extra-ldflags=}"
  90   ;;
  91   --extra-libs=*) extralibs=${opt#--extra-libs=}
  92   ;;
  93   --cpu=*) cpu=`echo $opt | cut -d '=' -f 2`
  94   ;;
  95   --enable-gprof) gprof="yes"
  96   ;;
  97   esac
  98 done
  99
 100 # Checking for CFLAGS
 101 if test -z "$CFLAGS"; then
 102     CFLAGS="-O2"
 103 fi
 104
 105 cc="${cross_prefix}${cc}"
 106 ar="${cross_prefix}${ar}"
 107 strip="${cross_prefix}${strip}"
 108
 109 if test -z "$cross_prefix" ; then
 110
 111 # ---
 112 # big/little endian test
 113 cat > $TMPC << EOF
 114 #include <inttypes.h>
 115 int main(int argc, char ** argv){
 116         volatile uint32_t i=0x01234567;
 117         return (*((uint8_t*)(&i))) == 0x67;
 118 }
 119 EOF
 120
 121 if $cc -o $TMPE $TMPC 2>/dev/null ; then
 122 $TMPE && bigendian="yes"
 123 else
 124 echo big/little test failed
 125 fi
 126
 127 else
 128
 129 # if cross compiling, cannot launch a program, so make a static guess
 130 if test "$cpu" = "powerpc" -o "$cpu" = "mips" -o "$cpu" = "s390" ; then
 131     bigendian="yes"
 132 fi
 133
 134 fi
 135
 136 # check gcc version
 137 cat > $TMPC <<EOF
 138 int main(void) {
 139 #if __GNUC__ > 3 || (__GNUC__ == 3 && __GNUC_MINOR__ >= 2)
 140 return 0;
 141 #else
 142 #error gcc < 3.2
 143 #endif
 144 }
 145 EOF
 146
 147 gcc_major="2"
 148 if $cc -o $TMPO $TMPC 2> /dev/null ; then
 149    gcc_major="3"
 150 fi
 151
 152 if test x"$1" = x"-h" -o x"$1" = x"--help" ; then
 153 cat << EOF
 154
 155 Usage: configure [options]
 156 Options: [defaults in brackets after descriptions]
 157
 158 EOF
 159 echo "Standard options:"
 160 echo "  --help                   print this message"
 161 echo "  --prefix=PREFIX          install in PREFIX [$prefix]"
 162 echo "  --interp-prefix=PREFIX   where to find shared libraries, etc. [$interp_prefix]"
 163 echo ""
 164 echo "Advanced options (experts only):"
 165 echo "  --source-path=PATH       path of source code [$source_path]"
 166 echo "  --cross-prefix=PREFIX    use PREFIX for compile tools [$cross_prefix]"
 167 echo "  --cc=CC                  use C compiler CC [$cc]"
 168 echo "  --make=MAKE              use specified make [$make]"
 169 echo ""
 170 echo "NOTE: The object files are build at the place where configure is launched"
 171 exit 1
 172 fi
 173
 174 echo "Install prefix   $prefix"
 175 echo "Source path      $source_path"
 176 echo "C compiler       $cc"
 177 echo "make             $make"
 178 echo "CPU              $cpu"
 179 echo "Big Endian       $bigendian"
 180 echo "gprof enabled    $gprof"
 181
 182 echo "Creating config.mak and config.h"
 183
 184 echo "# Automatically generated by configure - do not modify" > config.mak
 185 echo "/* Automatically generated by configure - do not modify */" > $TMPH
 186
 187 echo "prefix=$prefix" >> config.mak
 188 echo "#define CONFIG_QEMU_PREFIX \"$interp_prefix\"" >> $TMPH
 189 echo "MAKE=$make" >> config.mak
 190 echo "CC=$cc" >> config.mak
 191 echo "GCC_MAJOR=$gcc_major" >> config.mak
 192 echo "HOST_CC=$host_cc" >> config.mak
 193 echo "AR=$ar" >> config.mak
 194 echo "STRIP=$strip -s -R .comment -R .note" >> config.mak
 195 echo "CFLAGS=$CFLAGS" >> config.mak
 196 echo "LDFLAGS=$LDFLAGS" >> config.mak
 197 if test "$cpu" = "x86" ; then
 198   echo "ARCH=i386" >> config.mak
 199   echo "#define HOST_I386 1" >> $TMPH
 200 elif test "$cpu" = "armv4l" ; then
 201   echo "ARCH=arm" >> config.mak
 202   echo "#define HOST_ARM 1" >> $TMPH
 203 elif test "$cpu" = "powerpc" ; then
 204   echo "ARCH=ppc" >> config.mak
 205   echo "#define HOST_PPC 1" >> $TMPH
 206 elif test "$cpu" = "mips" ; then
 207   echo "ARCH=mips" >> config.mak
 208   echo "#define HOST_MIPS 1" >> $TMPH
 209 elif test "$cpu" = "s390" ; then
 210   echo "ARCH=s390" >> config.mak
 211   echo "#define HOST_S390 1" >> $TMPH
 212 elif test "$cpu" = "alpha" ; then
 213   echo "ARCH=alpha" >> config.mak
 214   echo "#define HOST_ALPHA 1" >> $TMPH
 215 else
 216   echo "Unsupported CPU"
 217   exit 1
 218 fi
 219 if test "$bigendian" = "yes" ; then
 220   echo "WORDS_BIGENDIAN=yes" >> config.mak
 221   echo "#define WORDS_BIGENDIAN 1" >> $TMPH
 222 fi
 223 if test "$gprof" = "yes" ; then
 224   echo "TARGET_GPROF=yes" >> config.mak
 225   echo "#define HAVE_GPROF 1" >> $TMPH
 226 fi
 227 echo -n "VERSION=" >>config.mak
 228 head $source_path/VERSION >>config.mak
 229 echo "" >>config.mak
 230 echo -n "#define QEMU_VERSION \"" >> $TMPH
 231 head $source_path/VERSION >> $TMPH
 232 echo "\"" >> $TMPH
 233
 234 # build tree in object directory if source path is different from current one
 235 if test "$source_path_used" = "yes" ; then
 236     DIRS="tests"
 237     FILES="Makefile tests/Makefile"
 238     for dir in $DIRS ; do
 239             mkdir -p $dir
 240     done
 241     for f in $FILES ; do
 242         ln -sf $source_path/$f $f
 243     done
 244 fi
 245 echo "SRC_PATH=$source_path" >> config.mak
 246
 247 diff $TMPH config.h >/dev/null 2>&1
 248 if test $? -ne 0 ; then
 249         mv -f $TMPH config.h
 250 else
 251         echo "config.h is unchanged"
 252 fi
 253
 254 rm -f $TMPO $TMPC $TMPE $TMPS $TMPH