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Let autoreconf pass warning flags to new-enough aclocal.

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* bin/autoreconf.in ($aclocal_supports_warnings)
($automake_supports_warnings): New globals.
(parse_args): Set and use them.  Be sure to invoke `aclocal
--help' and `automake --help' just once each.
* NEWS: Update.
Prompted by report from Bruno Haible.

Signed-off-by: Ralf Wildenhues <Ralf.Wildenhues@gmx.de>
Signed-off-by: Eric Blake <eblake@redhat.com>
This commit is contained in:
Ralf Wildenhues 2010-07-20 07:35:01 +02:00 committed by Eric Blake
parent f3c508423f
commit 70201af851
3 changed files with 23 additions and 3 deletions
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8
ChangeLog
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@ -1,5 +1,13 @@
2010-07-20 Ralf Wildenhues <Ralf.Wildenhues@gmx.de>
Let autoreconf pass warning flags to new-enough aclocal.
* bin/autoreconf.in ($aclocal_supports_warnings)
($automake_supports_warnings): New globals.
(parse_args): Set and use them. Be sure to invoke `aclocal
--help' and `automake --help' just once each.
* NEWS: Update.
Prompted by report from Bruno Haible.
Fix parsing of empty variable settings on the command line.
* lib/autoconf/general.m4 (_AC_INIT_PARSE_ARGS): Work around
expr bug returning 0 instead of the empty string.

2
NEWS
View File

@ -20,6 +20,8 @@ GNU Autoconf NEWS - User visible changes.
in other contexts, e.g., for Automake, and may be subject to
further restrictions in the future. Regression introduced in 2.66.
** autoreconf passes warning flags to new enough versions of aclocal.
* Major changes in Autoconf 2.66 (2010-07-02) [stable]
Released by Eric Blake, based on git versions 2.65.*.

16
bin/autoreconf.in
View File

@ -122,8 +122,12 @@ my $install = 0;
my $symlink = 0;
# Does aclocal support --force?
my $aclocal_supports_force = 0;
# Does aclocal support -Wfoo?
my $aclocal_supports_warnings = 0;
# Does automake support --force-missing?
my $automake_supports_force_missing = 0;
# Does automake support -Wfoo?
my $automake_supports_warnings = 0;
my @prepend_include;
my @include;
@ -182,8 +186,12 @@ sub parse_args ()
}
}
$aclocal_supports_force = `$aclocal --help 2>/dev/null` =~ /--force/;
$automake_supports_force_missing = `$automake --help 2>/dev/null` =~ /--force-missing/;
my $aclocal_help = `$aclocal --help 2>/dev/null`;
my $automake_help = `$automake --help 2>/dev/null`;
$aclocal_supports_force = $aclocal_help =~ /--force/;
$aclocal_supports_warnings = $aclocal_help =~ /--warnings/;
$automake_supports_force_missing = $automake_help =~ /--force-missing/;
$automake_supports_warnings = $automake_help =~ /--warnings/;
# Dispatch autoreconf's option to the tools.
# --include;
@ -242,7 +250,9 @@ sub parse_args ()
$autoconf .= $warn;
$autoheader .= $warn;
$automake .= $warn
if `$automake --help` =~ /--warnings/;
if $automake_supports_warnings;
$aclocal .= $warn
if $aclocal_supports_warnings;
}
}