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Require bison 2.7 or newer for regenerating intl/plural.y

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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.
This commit is contained in:
Will Newton
2014-12-11 17:27:34 +00:00
parent e969965afd
commit cc8623f196
5 changed files with 65 additions and 17 deletions
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53
configure vendored
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@ -5330,27 +5330,26 @@ $as_echo "no" >&6; }
fi
# Extract the first word of "bison", so it can be a program name with args.
set dummy bison; ac_word=$2
for ac_prog in bison
do
# Extract the first word of "$ac_prog", so it can be a program name with args.
set dummy $ac_prog; ac_word=$2
{ $as_echo "$as_me:${as_lineno-$LINENO}: checking for $ac_word" >&5
$as_echo_n "checking for $ac_word... " >&6; }
if ${ac_cv_path_BISON+:} false; then :
if ${ac_cv_prog_BISON+:} false; then :
$as_echo_n "(cached) " >&6
else
case $BISON in
[\\/]* | ?:[\\/]*)
ac_cv_path_BISON="$BISON" # Let the user override the test with a path.
;;
*)
as_save_IFS=$IFS; IFS=$PATH_SEPARATOR
as_dummy="$PATH:/usr/local/bin:/usr/bin:/bin"
for as_dir in $as_dummy
if test -n "$BISON"; then
ac_cv_prog_BISON="$BISON" # Let the user override the test.
else
as_save_IFS=$IFS; IFS=$PATH_SEPARATOR
for as_dir in $PATH
do
IFS=$as_save_IFS
test -z "$as_dir" && as_dir=.
for ac_exec_ext in '' $ac_executable_extensions; do
if as_fn_executable_p "$as_dir/$ac_word$ac_exec_ext"; then
ac_cv_path_BISON="$as_dir/$ac_word$ac_exec_ext"
ac_cv_prog_BISON="$ac_prog"
$as_echo "$as_me:${as_lineno-$LINENO}: found $as_dir/$ac_word$ac_exec_ext" >&5
break 2
fi
@ -5358,11 +5357,9 @@ done
done
IFS=$as_save_IFS
test -z "$ac_cv_path_BISON" && ac_cv_path_BISON="no"
;;
esac
fi
BISON=$ac_cv_path_BISON
fi
BISON=$ac_cv_prog_BISON
if test -n "$BISON"; then
{ $as_echo "$as_me:${as_lineno-$LINENO}: result: $BISON" >&5
$as_echo "$BISON" >&6; }
@ -5372,6 +5369,30 @@ $as_echo "no" >&6; }
fi
test -n "$BISON" && break
done
if test -z "$BISON"; then
ac_verc_fail=yes
else
# Found it, now check the version.
{ $as_echo "$as_me:${as_lineno-$LINENO}: checking version of $BISON" >&5
$as_echo_n "checking version of $BISON... " >&6; }
ac_prog_version=`$BISON --version 2>&1 | sed -n 's/^.*bison (GNU Bison) \([0-9]*\.[0-9.]*\).*$/\1/p'`
case $ac_prog_version in
'') ac_prog_version="v. ?.??, bad"; ac_verc_fail=yes;;
2.7*|[3-9].*|[1-9][0-9]*)
ac_prog_version="$ac_prog_version, ok"; ac_verc_fail=no;;
*) ac_prog_version="$ac_prog_version, bad"; ac_verc_fail=yes;;
esac
{ $as_echo "$as_me:${as_lineno-$LINENO}: result: $ac_prog_version" >&5
$as_echo "$ac_prog_version" >&6; }
fi
if test $ac_verc_fail = yes; then
BISON=no
fi
{ $as_echo "$as_me:${as_lineno-$LINENO}: checking for libc-friendly stddef.h" >&5
$as_echo_n "checking for libc-friendly stddef.h... " >&6; }