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[PATCH] Prevent needless autoconf run in libcpp
- From: Thiemo Seufer <ths at networkno dot de>
- To: gcc-patches at gcc dot gnu dot org
- Date: Mon, 25 Feb 2008 19:08:43 +0000
- Subject: [PATCH] Prevent needless autoconf run in libcpp
libcpp:Makefile.in currently defines a dependency of config.in on
configure. This, in conjunction with the stamp rule immediately
above, causes a re-run of autoconf for the _second_ make invocation,
i.e. for "make install" after a successful build. I believe the
dependency should be on configure.ac.
This problem persists since at least GCC 4.2, I haven't checked
earlier versions.
Thiemo
2008-02-25 Thiemo Seufer <ths@mips.com>
Makefile.in ($(srcdir)/config.in): Depend on configure.ac.
Index: libcpp/Makefile.in
===================================================================
--- libcpp/Makefile.in (revision 132632)
+++ libcpp/Makefile.in (working copy)
@@ -119,7 +119,7 @@
-rm -f stamp-h1
$(SHELL) ./config.status config.h
-$(srcdir)/config.in: @MAINT@ $(srcdir)/configure
+$(srcdir)/config.in: @MAINT@ $(srcdir)/configure.ac
cd $(srcdir) && $(AUTOHEADER)
-rm -f stamp-h1