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}-$$-${RANDOM}.h"
  19
  20 # default parameters
  21 prefix="/usr/local"
  22 interp_prefix="/usr/gnemul/qemu-i386"
  23 cross_prefix=""
  24 cc="gcc"
  25 host_cc="gcc"
  26 ar="ar"
  27 make="make"
  28 strip="strip"
  29 target_cpu="x86"
  30 cpu=`uname -m`
  31 case "$cpu" in
  32   i386|i486|i586|i686|i86pc|BePC)
  33     cpu="x86"
  34   ;;
  35   armv4l)
  36     cpu="armv4l"
  37   ;;
  38   alpha)
  39     cpu="alpha"
  40   ;;
  41   "Power Macintosh"|ppc|ppc64)
  42     cpu="powerpc"
  43   ;;
  44   mips)
  45     cpu="mips"
  46   ;;
  47   s390)
  48     cpu="s390"
  49   ;;
  50   ia64)
  51     cpu="ia64"
  52   ;;
  53   *)
  54     cpu="unknown"
  55   ;;
  56 esac
  57 gprof="no"
  58 bigendian="no"
  59
  60 # OS specific
  61 targetos=`uname -s`
  62 case $targetos in
  63 *) ;;
  64 esac
  65
  66 # find source path
  67 # XXX: we assume an absolute path is given when launching configure,
  68 # except in './configure' case.
  69 source_path=${0%configure}
  70 source_path=${source_path%/}
  71 source_path_used="yes"
  72 if test -z "$source_path" -o "$source_path" = "." ; then
  73     source_path=`pwd`
  74     source_path_used="no"
  75 fi
  76
  77 for opt do
  78   case "$opt" in
  79   --prefix=*) prefix=`echo $opt | cut -d '=' -f 2`
  80   ;;
  81   --interp-prefix=*) interp_prefix=`echo $opt | cut -d '=' -f 2`
  82   ;;
  83   --source-path=*) source_path=`echo $opt | cut -d '=' -f 2`
  84   ;;
  85   --cross-prefix=*) cross_prefix=`echo $opt | cut -d '=' -f 2`
  86   ;;
  87   --cc=*) cc=`echo $opt | cut -d '=' -f 2`
  88   ;;
  89   --make=*) make=`echo $opt | cut -d '=' -f 2`
  90   ;;
  91   --extra-cflags=*) CFLAGS="${opt#--extra-cflags=}"
  92   ;;
  93   --extra-ldflags=*) LDFLAGS="${opt#--extra-ldflags=}"
  94   ;;
  95   --extra-libs=*) extralibs=${opt#--extra-libs=}
  96   ;;
  97   --cpu=*) cpu=`echo $opt | cut -d '=' -f 2`
  98   ;;
  99   --enable-gprof) gprof="yes"
 100   ;;
 101   esac
 102 done
 103
 104 # Checking for CFLAGS
 105 if test -z "$CFLAGS"; then
 106     CFLAGS="-O2"
 107 fi
 108
 109 cc="${cross_prefix}${cc}"
 110 ar="${cross_prefix}${ar}"
 111 strip="${cross_prefix}${strip}"
 112
 113 if test -z "$cross_prefix" ; then
 114
 115 # ---
 116 # big/little endian test
 117 cat > $TMPC << EOF
 118 #include <inttypes.h>
 119 int main(int argc, char ** argv){
 120         volatile uint32_t i=0x01234567;
 121         return (*((uint8_t*)(&i))) == 0x67;
 122 }
 123 EOF
 124
 125 if $cc -o $TMPE $TMPC 2>/dev/null ; then
 126 $TMPE && bigendian="yes"
 127 else
 128 echo big/little test failed
 129 fi
 130
 131 else
 132
 133 # if cross compiling, cannot launch a program, so make a static guess
 134 if test "$cpu" = "powerpc" -o "$cpu" = "mips" -o "$cpu" = "s390" ; then
 135     bigendian="yes"
 136 fi
 137
 138 fi
 139
 140 # check gcc version
 141 cat > $TMPC <<EOF
 142 int main(void) {
 143 #if __GNUC__ > 3 || (__GNUC__ == 3 && __GNUC_MINOR__ >= 2)
 144 return 0;
 145 #else
 146 #error gcc < 3.2
 147 #endif
 148 }
 149 EOF
 150
 151 gcc_major="2"
 152 if $cc -o $TMPO $TMPC 2> /dev/null ; then
 153    gcc_major="3"
 154 fi
 155
 156 if test x"$1" = x"-h" -o x"$1" = x"--help" ; then
 157 cat << EOF
 158
 159 Usage: configure [options]
 160 Options: [defaults in brackets after descriptions]
 161
 162 EOF
 163 echo "Standard options:"
 164 echo "  --help                   print this message"
 165 echo "  --prefix=PREFIX          install in PREFIX [$prefix]"
 166 echo "  --interp-prefix=PREFIX   where to find shared libraries, etc. [$interp_prefix]"
 167 echo ""
 168 echo "Advanced options (experts only):"
 169 echo "  --source-path=PATH       path of source code [$source_path]"
 170 echo "  --cross-prefix=PREFIX    use PREFIX for compile tools [$cross_prefix]"
 171 echo "  --cc=CC                  use C compiler CC [$cc]"
 172 echo "  --make=MAKE              use specified make [$make]"
 173 echo ""
 174 echo "NOTE: The object files are build at the place where configure is launched"
 175 exit 1
 176 fi
 177
 178 echo "Install prefix   $prefix"
 179 echo "Source path      $source_path"
 180 echo "C compiler       $cc"
 181 echo "make             $make"
 182 echo "host CPU         $cpu"
 183 echo "Big Endian       $bigendian"
 184 echo "target CPU       $target_cpu"
 185 echo "gprof enabled    $gprof"
 186
 187 echo "Creating config.mak and config.h"
 188
 189 echo "# Automatically generated by configure - do not modify" > config.mak
 190 echo "/* Automatically generated by configure - do not modify */" > $TMPH
 191
 192 echo "prefix=$prefix" >> config.mak
 193 echo "#define CONFIG_QEMU_PREFIX \"$interp_prefix\"" >> $TMPH
 194 echo "MAKE=$make" >> config.mak
 195 echo "CC=$cc" >> config.mak
 196 echo "GCC_MAJOR=$gcc_major" >> config.mak
 197 echo "HOST_CC=$host_cc" >> config.mak
 198 echo "AR=$ar" >> config.mak
 199 echo "STRIP=$strip -s -R .comment -R .note" >> config.mak
 200 echo "CFLAGS=$CFLAGS" >> config.mak
 201 echo "LDFLAGS=$LDFLAGS" >> config.mak
 202 if test "$cpu" = "x86" ; then
 203   echo "ARCH=i386" >> config.mak
 204   echo "#define HOST_I386 1" >> $TMPH
 205 elif test "$cpu" = "armv4l" ; then
 206   echo "ARCH=arm" >> config.mak
 207   echo "#define HOST_ARM 1" >> $TMPH
 208 elif test "$cpu" = "powerpc" ; then
 209   echo "ARCH=ppc" >> config.mak
 210   echo "#define HOST_PPC 1" >> $TMPH
 211 elif test "$cpu" = "mips" ; then
 212   echo "ARCH=mips" >> config.mak
 213   echo "#define HOST_MIPS 1" >> $TMPH
 214 elif test "$cpu" = "s390" ; then
 215   echo "ARCH=s390" >> config.mak
 216   echo "#define HOST_S390 1" >> $TMPH
 217 elif test "$cpu" = "alpha" ; then
 218   echo "ARCH=alpha" >> config.mak
 219   echo "#define HOST_ALPHA 1" >> $TMPH
 220 elif test "$cpu" = "ia64" ; then
 221   echo "ARCH=ia64" >> config.mak
 222   echo "#define HOST_IA64 1" >> $TMPH
 223 else
 224   echo "Unsupported CPU"
 225   exit 1
 226 fi
 227 if test "$bigendian" = "yes" ; then
 228   echo "WORDS_BIGENDIAN=yes" >> config.mak
 229   echo "#define WORDS_BIGENDIAN 1" >> $TMPH
 230 fi
 231 if test "$gprof" = "yes" ; then
 232   echo "TARGET_GPROF=yes" >> config.mak
 233   echo "#define HAVE_GPROF 1" >> $TMPH
 234 fi
 235 echo -n "VERSION=" >>config.mak
 236 head $source_path/VERSION >>config.mak
 237 echo "" >>config.mak
 238 echo -n "#define QEMU_VERSION \"" >> $TMPH
 239 head $source_path/VERSION >> $TMPH
 240 echo "\"" >> $TMPH
 241
 242 # build tree in object directory if source path is different from current one
 243 if test "$source_path_used" = "yes" ; then
 244     DIRS="tests"
 245     FILES="Makefile tests/Makefile"
 246     for dir in $DIRS ; do
 247             mkdir -p $dir
 248     done
 249     for f in $FILES ; do
 250         ln -sf $source_path/$f $f
 251     done
 252 fi
 253 echo "SRC_PATH=$source_path" >> config.mak
 254
 255 diff $TMPH config.h >/dev/null 2>&1
 256 if test $? -ne 0 ; then
 257         mv -f $TMPH config.h
 258 else
 259         echo "config.h is unchanged"
 260 fi
 261
 262 rm -f $TMPO $TMPC $TMPE $TMPS $TMPH