diff options
Diffstat (limited to 'Makefile.in')
| -rw-r--r-- | Makefile.in | 17 |
1 files changed, 11 insertions, 6 deletions
diff --git a/Makefile.in b/Makefile.in index 30c82771db..8287dc1c67 100644 --- a/Makefile.in +++ b/Makefile.in @@ -161,13 +161,18 @@ config.status: $(srcdir)/configure $(srcdir)/configure: $(srcdir)/configure.in cd $(srcdir) && $(AUTOCONF) +# Things which should be considered: +# * with gperf v.s. without gperf +# * ./configure v.s. ../ruby/configure +# * GNU make v.s. HP-UX make # HP-UX make invokes the action if lex.c and keywords has same mtime. lex.c: keywords - ( \ - gperf --output-file=$@.tmp -C -p -j1 -i 1 -g -o -t -N rb_reserved_word -k1,3,$$ $? && \ - cp $@.tmp $@ && \ - mv $@.tmp "$(srcdir)/$@.blt" \ - ) || \ - cp "$(srcdir)/$@.blt" $@ + if test -f $@ && test -z "`find $? -newer $@ -print`"; then \ + touch $@; \ + elif test -f $(srcdir)/lex.c && test -z "`find $? -newer $(srcdir)/lex.c -print`"; then \ + cp $(srcdir)/lex.c $@; \ + else \ + gperf --output-file=$@.tmp -C -p -j1 -i 1 -g -o -t -N rb_reserved_word -k1,3,$$ $? && cp $@.tmp $@; \ + fi .y.c: $(YACC) $(YFLAGS) -o $@ $< |