build: port to pre-5.8.7 perl

* examples/local.mk (extract): Omit -f from perl options.
This doesn't work with perl versions before 5.8.7
that are configured without USE_SITECUSTOMIZE.
Reported by Michael Felt in
<http://lists.gnu.org/archive/html/bug-bison/2013-08/msg00006.html>.

diff --git a/examples/local.mk b/examples/local.mk
index 05e28e1b9fe8966ffe27f42672cc9be917cccd21..c79c80044ffbad4a6e164066ce30f4d46ef96d5c 100644 (file)
--- a/examples/local.mk
+++ b/examples/local.mk
@@ -25,7 +25,7 @@ AM_CXXFLAGS =                                                 \
 
 doc = $(top_srcdir)/doc/bison.texi
 extexi = $(top_srcdir)/examples/extexi
-extract = VERSION="$(VERSION)" $(PERL) -f $(extexi) $(doc) --
+extract = VERSION="$(VERSION)" $(PERL) $(extexi) $(doc) --
 extracted =
 CLEANFILES += $(extracted) examples/extracted.stamp
 examples/extracted.stamp: $(doc) $(extexi)