source/script/lex_compile.sh

   1 #!/bin/sh
   2
   3 LEX="$1"
   4 SRC="$2"
   5 DEST="$3"
   6
   7 dir=`dirname $SRC`
   8 file=`basename $SRC`
   9 base=`basename $SRC .l`
  10 if [ -z "$LEX" ]; then
  11         echo "lex not found - not regenerating $DEST"
  12         exit;
  13 fi
  14 if [ -r $DEST ]; then
  15         if [ x`find $SRC -newer $DEST -print` != x$SRC ]; then
  16                 exit;
  17         fi
  18 fi
  19 TOP=`pwd`
  20 if cd $dir && $LEX $file; then
  21         if [ -r $base.yy.c ];then
  22                 # we must guarantee that config.h comes first
  23                 echo "#include \"config.h\"" > $base.c
  24                 sed '/^#/ s|$base.yy\.c|$DEST|' $base.yy.c >> $base.c
  25                 rm -f $base.yy.c
  26         fi
  27 fi
  28 cd $TOP