svn commit: r506872 - in head/devel/autoconf: . files
Tijl Coosemans
tijl at FreeBSD.org
Thu Jul 18 19:12:21 UTC 2019
Author: tijl
Date: Thu Jul 18 19:12:20 2019
New Revision: 506872
URL: https://svnweb.freebsd.org/changeset/ports/506872
Log:
Add patch with upstream commit 42761668c0300afa7f8bf5ba736458a818cd5d15:
AC_PROG_YACC: don't force Bison to warn against its own features.
Requested by: ler (via email)
Reference: https://github.com/paul-j-lucas/cdecl/issues/2
Added:
head/devel/autoconf/files/patch-bison (contents, props changed)
Modified:
head/devel/autoconf/Makefile
Modified: head/devel/autoconf/Makefile
==============================================================================
--- head/devel/autoconf/Makefile Thu Jul 18 18:52:34 2019 (r506871)
+++ head/devel/autoconf/Makefile Thu Jul 18 19:12:20 2019 (r506872)
@@ -3,7 +3,7 @@
PORTNAME= autoconf
PORTVERSION= 2.69
-PORTREVISION= 2
+PORTREVISION= 3
CATEGORIES= devel
MASTER_SITES= GNU
Added: head/devel/autoconf/files/patch-bison
==============================================================================
--- /dev/null 00:00:00 1970 (empty, because file is newly added)
+++ head/devel/autoconf/files/patch-bison Thu Jul 18 19:12:20 2019 (r506872)
@@ -0,0 +1,53 @@
+From 42761668c0300afa7f8bf5ba736458a818cd5d15 Mon Sep 17 00:00:00 2001
+From: Akim Demaille <akim at lrde.epita.fr>
+Date: Tue, 19 Mar 2013 11:19:17 -0700
+Subject: AC_PROG_YACC: don't force Bison to warn against its own features
+
+When invoked with -y/--yacc, Bison warns when its extensions over
+POSIX Yacc are used. Yet many packages requiring GNU Bison use
+Autoconf/Automake's Yacc support, which passes -y to Bison. It
+turns out that passing '-o y.tab.c' has exactly the desired
+effect: generating not only y.tab.c but also y.tab.h with -d and
+y.output with -v. See:
+http://lists.gnu.org/archive/html/bison-patches/2013-02/msg00100.html
+* lib/autoconf/programs.m4 (AC_PROG_YACC): Use bison -o y.tab.c.
+* NEWS, doc/autoconf.texi: Document this change.
+---
+ NEWS | 4 ++++
+ doc/autoconf.texi | 2 +-
+ lib/autoconf/programs.m4 | 4 ++--
+ 3 files changed, 7 insertions(+), 3 deletions(-)
+
+diff --git a/doc/autoconf.texi b/doc/autoconf.texi
+index c54c5b3..f895e47 100644
+--- doc/autoconf.texi
++++ doc/autoconf.texi
+@@ -4222,7 +4222,7 @@ and is cached in the @code{ac_cv_path_SED} variable.
+ @ovindex YACC
+ @caindex prog_YACC
+ If @code{bison} is found, set output variable @code{YACC} to @samp{bison
+--y}. Otherwise, if @code{byacc} is found, set @code{YACC} to
++-o y.tab.c}. Otherwise, if @code{byacc} is found, set @code{YACC} to
+ @samp{byacc}. Otherwise set @code{YACC} to @samp{yacc}.
+ The result of this test can be influenced by setting the variable
+ @code{YACC} or the cache variable @code{ac_cv_prog_YACC}.
+diff --git a/lib/autoconf/programs.m4 b/lib/autoconf/programs.m4
+index f7af8b5..2057e78 100644
+--- lib/autoconf/programs.m4
++++ lib/autoconf/programs.m4
+@@ -892,10 +892,10 @@ AN_PROGRAM([yacc], [AC_PROG_YACC])
+ AN_PROGRAM([byacc], [AC_PROG_YACC])
+ AN_PROGRAM([bison], [AC_PROG_YACC])
+ AC_DEFUN([AC_PROG_YACC],
+-[AC_CHECK_PROGS(YACC, 'bison -y' byacc, yacc)dnl
++[AC_CHECK_PROGS(YACC, 'bison -o y.tab.c' byacc, yacc)dnl
+ AC_ARG_VAR(YACC,
+ [The `Yet Another Compiler Compiler' implementation to use. Defaults to
+-the first program found out of: `bison -y', `byacc', `yacc'.])dnl
++the first program found out of: `bison -o y.tab.c', `byacc', `yacc'.])dnl
+ AC_ARG_VAR(YFLAGS,
+ [The list of arguments that will be passed by default to $YACC. This script
+ will default YFLAGS to the empty string to avoid a default value of `-d' given
+--
+cgit v1.0-41-gc330
+
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