build of cross compilers is optional - added tccdir path

configure

@@ -18,10 +18,12 @@ TMPS="${TMPDIR1}/tcc-conf-${RANDOM}-$$-${RANDOM}.S"
 TMPH="${TMPDIR1}/tcc-conf-${RANDOM}-$$-${RANDOM}.h"
 
 # default parameters
+build_cross="no"
 prefix=""
 execprefix=""
 bindir=""
 libdir=""
+tccdir=""
 includedir=""
 mandir=""
 cross_prefix=""
@@ -114,6 +116,8 @@ for opt do
   ;;
   --enable-mingw32) mingw32="yes" ; cross_prefix="i386-mingw32-"
   ;; 
+  --enable-cross) build_cross="yes"
+  ;;
   esac
 done
 
@@ -190,6 +194,7 @@ echo "  --bindir=DIR             user executables in DIR [EPREFIX/bin]"
 echo "  --libdir=DIR             object code libraries in DIR [EPREFIX/lib]"
 echo "  --includedir=DIR         C header files in DIR [PREFIX/include]"
 echo "  --mandir=DIR             man documentation in DIR [PREFIX/man]"
+echo "  --build-cross            build cross compilers"
 echo ""
 echo "Advanced options (experts only):"
 echo "  --source-path=PATH       path of source code [$source_path]"
@@ -207,6 +212,7 @@ if test "$mingw32" = "yes" ; then
     fi
     execprefix="$prefix"
     bindir="$prefix"
+    tccdir="$prefix"
     docdir="$prefix/doc"
 else
     if test -z "$prefix" ; then
@@ -226,6 +232,9 @@ fi # mingw32
 if test x"$libdir" = x""; then
 libdir="${execprefix}/lib"
 fi
+if test x"$tccdir" = x""; then
+tccdir="${execprefix}/lib/tcc"
+fi
 if test x"$mandir" = x""; then
 mandir="${prefix}/man"
 fi
@@ -234,6 +243,7 @@ includedir="${prefix}/include"
 fi
 
 echo "Binary  directory   $bindir"
+echo "TinyCC directory    $tccdir"
 echo "Library directory   $libdir"
 echo "Include directory   $includedir"
 echo "Manual directory    $mandir"
@@ -244,6 +254,7 @@ echo "make             $make"
 echo "CPU              $cpu"
 echo "Big Endian       $bigendian"
 echo "gprof enabled    $gprof"
+echo "cross compilers  $build_cross"
 
 echo "Creating config.mak and config.h"
 
@@ -252,11 +263,12 @@ echo "/* Automatically generated by configure - do not modify */" > $TMPH
 
 echo "prefix=$prefix" >> config.mak
 echo "bindir=$bindir" >> config.mak
+echo "tccdir=$tccdir" >> config.mak
 echo "libdir=$libdir" >> config.mak
 echo "includedir=$includedir" >> config.mak
 echo "mandir=$mandir" >> config.mak
 echo "docdir=$docdir" >> config.mak
-echo "#define CONFIG_TCC_LIBDIR \"$libdir\"" >> $TMPH
+echo "#define CONFIG_TCCDIR \"$tccdir\"" >> $TMPH
 echo "MAKE=$make" >> config.mak
 echo "CC=$cc" >> config.mak
 echo "GCC_MAJOR=$gcc_major" >> config.mak
@@ -302,6 +314,9 @@ if test "$gprof" = "yes" ; then
   echo "TARGET_GPROF=yes" >> config.mak
   echo "#define HAVE_GPROF 1" >> $TMPH
 fi
+if test "$build_cross" = "yes" ; then
+  echo "CONFIG_CROSS=yes" >> config.mak
+fi
 version=`head $source_path/VERSION`
 echo "VERSION=$version" >>config.mak
 echo "#define TCC_VERSION \"$version\"" >> $TMPH