Index: ChangeLog from Benoît Perrot <benoit@lrde.epita.fr> Use a dedicated script to launch bison to control the directory where the generated files are output. * config/move-if-change, config/bison++: Provided by Akim Demaille. * config/Makefile.am: Distribute them. * src/parse/Makefile.am: Use bison++. Index: src/parse/Makefile.am --- src/parse/Makefile.am (revision 135) +++ src/parse/Makefile.am (working copy) @@ -30,18 +30,21 @@ @mv -f $@.tmp $@ asm-parse.yy: parse-asm-parse.stamp -bison.stamp: asm-parse.yy - @rm -rf $@.tmp - @touch $@.tmp - bison -S lalr1.cc -d -ra asm-parse.yy -o asm-parse.cc - @mv -f $@.tmp $@ + +BISONXX = $(top_srcdir)/config/bison++ +EXTRA_DIST = $(srcdir)/bison++.stamp +$(srcdir)/bison++.stamp: $(srcdir)/asm-parse.yy + @rm -rf bison++.stamp.tmp + @touch bison++.stamp.tmp + $(BISONXX) $(srcdir) asm-parse.yy asm-parse.cc -d -ra + @mv -f bison++.stamp.tmp $@ # Run bison if a file that can be created by it is missing: -asm-parse.cc $(FROM_ASM_PARSE_YY): bison.stamp +$(srcdir)/asm-parse.cc $(FROM_ASM_PARSE_YY): $(srcdir)/bison++.stamp @if test ! -f $@; then \ - @rm -f bison.stamp; \ - $(MAKE) $(AM_MAKEFLAGS) bison.stamp; \ + rm -f $(srcdir)/bison++.stamp; \ + $(MAKE) $(AM_MAKEFLAGS) $(srcdir)/bison++.stamp; \ fi MAINTAINERCLEANFILES = asm-scan.ll asm-scan.yy $(FROM_ASM_PARSE_YY) Index: config/Makefile.am --- config/Makefile.am (revision 135) +++ config/Makefile.am (working copy) @@ -1,6 +1,8 @@ ## Makefile.am -- Process this file with automake to produce Makefile.in ## +dist_noinst_SCRIPTS = move-if-change bison++ + EXTRA_DIST = $(SPECIFIC_MACROS) $(STANDARD_MACROS) $(SPECIFIC_TOOLS) MAINTAINERCLEANFILES = \ Index: config/bison++ --- config/bison++ (revision 0) +++ config/bison++ (revision 136) @@ -0,0 +1,49 @@ +#! /bin/sh + +# Any tool failure is a failure of the script. +set -e + +# bison++ SRCDIR INPUT OUTPUT OPTIONS +# ----------------------------------- + +me=$(basename $0) +auxdir=$(cd $(dirname $0) && pwd) + +srcdir=$1 +shift +input=$1 +shift +output=$1 +shift +options="-S lalr1.cc $@" + +# Alexandre Duret-Lutz also notes that in VPATH-builds $(srcdir) can +# be an absolute path depending on how ./configure is called ... +# In that case + +# bison $(srcdir)/parsetiger.yy [...] + +# will hard code the path in the maintainer's tree. Hence, do not use +# paths with Bison, chdir there. + +# A tmp dir. +tmp=$output.dir +rm -rf $tmp +mkdir $tmp + +# Compile in this dir. +# Don't use `ln -s' as its semantics of paths sucks. +cp $srcdir/$input $tmp +cd $tmp +bison $options -S lalr1.cc $input -o $output +for file in * +do + case $file in + $input) ;; + *) $auxdir/move-if-change $file ../$srcdir/$file;; + esac +done + +# Get rid of the tmp dir. +cd .. +rm -rf $tmp Index: config/move-if-change --- config/move-if-change (revision 0) +++ config/move-if-change (revision 136) @@ -0,0 +1,18 @@ +#!/bin/sh +# Like mv $1 $2, but if the files are the same, just delete $1. +# Status is 0 if $2 is changed, 1 otherwise. +if +test -r $2 +then +if +cmp -s $1 $2 +then +echo $2 is unchanged +rm -f $1 +else +mv -f $1 $2 +fi +else +mv -f $1 $2 +fi +