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authorWill Newton <will.newton@linaro.org>2014-12-11 17:27:34 +0000
committerWill Newton <will.newton@linaro.org>2014-12-22 11:57:40 +0000
commitcc8623f196cd5d1c82573b34cb3a6a56f712790a (patch)
treebae68fcd9421e593a075b1ce270261b62dfd1791 /configure.ac
parente969965afdeab1144ace665f28273f5f543923b2 (diff)
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Require bison 2.7 or newer for regenerating intl/plural.y
The merge of the latest gettext code introduced changes to the yacc
parser source that are incompatible with versions of bison older
than 2.7. Add a configure check for the appropriate versions and
document the requirement in INSTALL.

ChangeLog:

2014-12-22  Will Newton  <will.newton@linaro.org>

	* manual/install.texi: Document that we require bison 2.7
	or above.
	* INSTALL: Regenerate.
	* configure.ac: Use AC_CHECK_PROG_VER instead of
	AC_PATH_PROG when checking for bison and check for
	version 2.7 or above.
	* configure: Regenerate.
Diffstat (limited to 'configure.ac')
-rw-r--r--configure.ac5
1 files changed, 4 insertions, 1 deletions
diff --git a/configure.ac b/configure.ac
index f1e6394e7e..d89aaf0cdf 100644
--- a/configure.ac
+++ b/configure.ac
@@ -1048,7 +1048,10 @@ if test "$PERL" != no &&
 fi
 AC_PATH_PROG(INSTALL_INFO, install-info, no,
 	     $PATH:/usr/local/bin:/usr/local/sbin:/usr/bin:/usr/sbin:/bin:/sbin)
-AC_PATH_PROG(BISON, bison, no, $PATH:/usr/local/bin:/usr/bin:/bin)
+AC_CHECK_PROG_VER(BISON, bison, --version,
+		  [bison (GNU Bison) \([0-9]*\.[0-9.]*\)],
+		  [2.7*|[3-9].*|[1-9][0-9]*],
+		  BISON=no)
 
 AC_CACHE_CHECK(for libc-friendly stddef.h, libc_cv_friendly_stddef, [dnl
 AC_TRY_COMPILE(dnl