configure

   1 #!/bin/sh
   2 #
   3 # tcc 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="${TMPDIR1}/tcc-conf-${RANDOM}-$$-${RANDOM}.c"
  15 TMPO="${TMPDIR1}/tcc-conf-${RANDOM}-$$-${RANDOM}.o"
  16 TMPE="${TMPDIR1}/tcc-conf-${RANDOM}-$$-${RANDOM}"
  17 TMPS="${TMPDIR1}/tcc-conf-${RANDOM}-$$-${RANDOM}.S"
  18 TMPH="${TMPDIR1}/tcc-conf-${RANDOM}-$$-${RANDOM}.h"
  19
  20 # default parameters
  21 prefix="/usr/local"
  22 execprefix=""
  23 bindir=""
  24 libdir=""
  25 includedir=""
  26 mandir=""
  27 cross_prefix=""
  28 cc="gcc"
  29 host_cc="gcc"
  30 ar="ar"
  31 make="make"
  32 strip="strip"
  33 cpu=`uname -m`
  34 case "$cpu" in
  35   i386|i486|i586|i686|i86pc|BePC)
  36     cpu="x86"
  37   ;;
  38   armv4l)
  39     cpu="armv4l"
  40   ;;
  41   alpha)
  42     cpu="alpha"
  43   ;;
  44   "Power Macintosh"|ppc|ppc64)
  45     cpu="powerpc"
  46   ;;
  47   mips)
  48     cpu="mips"
  49   ;;
  50   s390)
  51     cpu="s390"
  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   --exec-prefix=*) execprefix=`echo $opt | cut -d '=' -f 2`
  82   ;;
  83   --bindir=*) bindir=`echo $opt | cut -d '=' -f 2`
  84   ;;
  85   --libdir=*) libdir=`echo $opt | cut -d '=' -f 2`
  86   ;;
  87   --includedir=*) includedir=`echo $opt | cut -d '=' -f 2`
  88   ;;
  89   --mandir=*) mandir=`echo $opt | cut -d '=' -f 2`
  90   ;;
  91   --source-path=*) source_path=`echo $opt | cut -d '=' -f 2`
  92   ;;
  93   --cross-prefix=*) cross_prefix=`echo $opt | cut -d '=' -f 2`
  94   ;;
  95   --cc=*) cc=`echo $opt | cut -d '=' -f 2`
  96   ;;
  97   --make=*) make=`echo $opt | cut -d '=' -f 2`
  98   ;;
  99   --extra-cflags=*) CFLAGS="${opt#--extra-cflags=}"
 100   ;;
 101   --extra-ldflags=*) LDFLAGS="${opt#--extra-ldflags=}"
 102   ;;
 103   --extra-libs=*) extralibs=${opt#--extra-libs=}
 104   ;;
 105   --cpu=*) cpu=`echo $opt | cut -d '=' -f 2`
 106   ;;
 107   --enable-gprof) gprof="yes"
 108   ;;
 109   esac
 110 done
 111
 112 # Checking for CFLAGS
 113 if test -z "$CFLAGS"; then
 114     CFLAGS="-O2"
 115 fi
 116
 117 cc="${cross_prefix}${cc}"
 118 ar="${cross_prefix}${ar}"
 119 strip="${cross_prefix}${strip}"
 120
 121 if test -z "$cross_prefix" ; then
 122
 123 # ---
 124 # big/little endian test
 125 cat > $TMPC << EOF
 126 #include <inttypes.h>
 127 int main(int argc, char ** argv){
 128         volatile uint32_t i=0x01234567;
 129         return (*((uint8_t*)(&i))) == 0x67;
 130 }
 131 EOF
 132
 133 if $cc -o $TMPE $TMPC 2>/dev/null ; then
 134 $TMPE && bigendian="yes"
 135 else
 136 echo big/little test failed
 137 fi
 138
 139 else
 140
 141 # if cross compiling, cannot launch a program, so make a static guess
 142 if test "$cpu" = "powerpc" -o "$cpu" = "mips" -o "$cpu" = "s390" ; then
 143     bigendian="yes"
 144 fi
 145
 146 fi
 147
 148 # check gcc version
 149 cat > $TMPC <<EOF
 150 int main(void) {
 151 #if __GNUC__ > 3 || (__GNUC__ == 3 && __GNUC_MINOR__ >= 2)
 152 return 0;
 153 #else
 154 #error gcc < 3.2
 155 #endif
 156 }
 157 EOF
 158
 159 gcc_major="2"
 160 if $cc -o $TMPO $TMPC 2> /dev/null ; then
 161    gcc_major="3"
 162 fi
 163
 164 if test x"$1" = x"-h" -o x"$1" = x"--help" ; then
 165 cat << EOF
 166
 167 Usage: configure [options]
 168 Options: [defaults in brackets after descriptions]
 169
 170 EOF
 171 echo "Standard options:"
 172 echo "  --help                   print this message"
 173 echo "  --prefix=PREFIX          install in PREFIX [$prefix]"
 174 echo "  --exec-prefix=EPREFIX    install architecture-dependent files in EPREFIX"
 175 echo "                           [same as prefix]"
 176 echo "  --bindir=DIR             user executables in DIR [EPREFIX/bin]"
 177 echo "  --libdir=DIR             object code libraries in DIR [EPREFIX/lib]"
 178 echo "  --includedir=DIR         C header files in DIR [PREFIX/include]"
 179 echo "  --mandir=DIR             man documentation in DIR [PREFIX/man]"
 180 echo ""
 181 echo "Advanced options (experts only):"
 182 echo "  --source-path=PATH       path of source code [$source_path]"
 183 echo "  --cross-prefix=PREFIX    use PREFIX for compile tools [$cross_prefix]"
 184 echo "  --cc=CC                  use C compiler CC [$cc]"
 185 echo "  --make=MAKE              use specified make [$make]"
 186 echo ""
 187 #echo "NOTE: The object files are build at the place where configure is launched"
 188 exit 1
 189 fi
 190
 191 if test x"$execprefix" = x""; then
 192 execprefix="${prefix}"
 193 fi
 194 if test x"$bindir" = x""; then
 195 bindir="${execprefix}/bin"
 196 fi
 197 if test x"$libdir" = x""; then
 198 libdir="${execprefix}/lib"
 199 fi
 200 if test x"$includedir" = x""; then
 201 includedir="${prefix}/include"
 202 fi
 203 if test x"$mandir" = x""; then
 204 mandir="${prefix}/man"
 205 fi
 206
 207 echo "Binary  directory   $bindir"
 208 echo "Library directory   $libdir"
 209 echo "Include directory   $includedir"
 210 echo "Manual  directory   $mandir"
 211 echo "Source path      $source_path"
 212 echo "C compiler       $cc"
 213 echo "make             $make"
 214 echo "CPU              $cpu"
 215 echo "Big Endian       $bigendian"
 216 echo "gprof enabled    $gprof"
 217
 218 echo "Creating config.mak and config.h"
 219
 220 echo "# Automatically generated by configure - do not modify" > config.mak
 221 echo "/* Automatically generated by configure - do not modify */" > $TMPH
 222
 223 echo "prefix=$prefix" >> config.mak
 224 echo "bindir=$bindir" >> config.mak
 225 echo "libdir=$libdir" >> config.mak
 226 echo "includedir=$includedir" >> config.mak
 227 echo "mandir=$mandir" >> config.mak
 228 echo "#define CONFIG_TCC_LIBDIR \"$libdir\"" >> $TMPH
 229 echo "MAKE=$make" >> config.mak
 230 echo "CC=$cc" >> config.mak
 231 echo "GCC_MAJOR=$gcc_major" >> config.mak
 232 echo "#define GCC_MAJOR $gcc_major" >> $TMPH
 233 echo "HOST_CC=$host_cc" >> config.mak
 234 echo "AR=$ar" >> config.mak
 235 echo "STRIP=$strip -s -R .comment -R .note" >> config.mak
 236 echo "CFLAGS=$CFLAGS" >> config.mak
 237 echo "LDFLAGS=$LDFLAGS" >> config.mak
 238 if test "$cpu" = "x86" ; then
 239   echo "ARCH=i386" >> config.mak
 240   echo "#define HOST_I386 1" >> $TMPH
 241 elif test "$cpu" = "armv4l" ; then
 242   echo "ARCH=arm" >> config.mak
 243   echo "#define HOST_ARM 1" >> $TMPH
 244 elif test "$cpu" = "powerpc" ; then
 245   echo "ARCH=ppc" >> config.mak
 246   echo "#define HOST_PPC 1" >> $TMPH
 247 elif test "$cpu" = "mips" ; then
 248   echo "ARCH=mips" >> config.mak
 249   echo "#define HOST_MIPS 1" >> $TMPH
 250 elif test "$cpu" = "s390" ; then
 251   echo "ARCH=s390" >> config.mak
 252   echo "#define HOST_S390 1" >> $TMPH
 253 elif test "$cpu" = "alpha" ; then
 254   echo "ARCH=alpha" >> config.mak
 255   echo "#define HOST_ALPHA 1" >> $TMPH
 256 else
 257   echo "Unsupported CPU"
 258   exit 1
 259 fi
 260 if test "$bigendian" = "yes" ; then
 261   echo "WORDS_BIGENDIAN=yes" >> config.mak
 262   echo "#define WORDS_BIGENDIAN 1" >> $TMPH
 263 fi
 264 if test "$gprof" = "yes" ; then
 265   echo "TARGET_GPROF=yes" >> config.mak
 266   echo "#define HAVE_GPROF 1" >> $TMPH
 267 fi
 268 version=`head $source_path/VERSION`
 269 echo "VERSION=$version" >>config.mak
 270 echo "#define TCC_VERSION \"$version\"" >> $TMPH
 271 echo "@set VERSION $version" > config.texi
 272
 273 # build tree in object directory if source path is different from current one
 274 if test "$source_path_used" = "yes" ; then
 275     DIRS="tests"
 276     FILES="Makefile tests/Makefile"
 277     for dir in $DIRS ; do
 278             mkdir -p $dir
 279     done
 280     for f in $FILES ; do
 281         ln -sf $source_path/$f $f
 282     done
 283 fi
 284 echo "SRC_PATH=$source_path" >> config.mak
 285
 286 diff $TMPH config.h >/dev/null 2>&1
 287 if test $? -ne 0 ; then
 288         mv -f $TMPH config.h
 289 else
 290         echo "config.h is unchanged"
 291 fi
 292
 293 rm -f $TMPO $TMPC $TMPE $TMPS $TMPH