[patch] cross keyword for automake warnings

["Alexander Stohr" <Alexander.Stohr@gmx.de>]

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each of the following two patches adds the "cross" keyword to the command line option --warnings of the automake utility.

that feature is merely a dummy right now as it's not yet used by the tool.
it improves consistency for the commandline parameters of the tools from that sector.
it further helps the oe build to not fail when e.g. a tool from the
autoconf collection blindly tries to pass along "--warnings=cross" to automake.

consider this as a systematic change that paves the way for more whilst reducing need for complexity (like filtering that) in the callers area.

two versions are appended.
i only ran the one for 1.10.x on my build testbed.

regards, Alex.
-- 
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[-- Attachment #2: automake-1.10.2.cross-warnings-001.patch --]
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diff -usbr automake-1.10.2.orig/aclocal.in automake-1.10.2/aclocal.in
--- automake-1.10.2.orig/aclocal.in	2008-11-23 09:28:59.000000000 +0100
+++ automake-1.10.2/aclocal.in	2010-09-28 18:55:24.000000000 +0200
@@ -887,6 +887,7 @@
   -W, --warnings=CATEGORY   report the warnings falling in CATEGORY
 
 Warning categories include:
+  `cross'         cross compilation issues
   `syntax'        dubious syntactic constructs (default)
   `unsupported'   unknown macros (default)
   `all'           all the warnings (default)
diff -usbr automake-1.10.2.orig/lib/Automake/ChannelDefs.pm automake-1.10.2/lib/Automake/ChannelDefs.pm
--- automake-1.10.2.orig/lib/Automake/ChannelDefs.pm	2008-11-23 09:28:59.000000000 +0100
+++ automake-1.10.2/lib/Automake/ChannelDefs.pm	2010-09-28 18:57:37.000000000 +0200
@@ -90,6 +90,10 @@
 
 Internal errors.  Use C<&prog_error> to send messages over this channel.
 
+=item C<cross>
+
+cross compilation issues
+
 =item C<gnu>
 
 Warnings related to GNU Coding Standards.
@@ -142,6 +146,7 @@
 	     "####################\n"),
   footer => "\nPlease contact <bug-automake\@gnu.org>.";
 
+register_channel 'cross', type => 'warning';
 register_channel 'gnu', type => 'warning';
 register_channel 'obsolete', type => 'warning', silent => 1;
 register_channel 'override', type => 'warning', silent => 1;
@@ -165,6 +170,7 @@
 sub usage ()
 {
   print "Warning categories include:
+  `cross'         cross compilation issues
   `gnu'           GNU coding standards (default in gnu and gnits modes)
   `obsolete'      obsolete features or constructions
   `override'      user redefinitions of Automake rules or variables

[-- Attachment #3: automake-1.11.1.cross-warnings-001.patch --]
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diff -usbr automake-1.11.1.orig/aclocal.in automake-1.11.1/aclocal.in
--- automake-1.11.1.orig/aclocal.in	2009-12-08 19:02:32.000000000 +0100
+++ automake-1.11.1/aclocal.in	2010-09-28 18:42:26.000000000 +0200
@@ -890,6 +890,7 @@
   -W, --warnings=CATEGORY   report the warnings falling in CATEGORY
 
 Warning categories include:
+  `cross'         cross compilation issues
   `syntax'        dubious syntactic constructs (default)
   `unsupported'   unknown macros (default)
   `all'           all the warnings (default)
diff -usbr automake-1.11.1.orig/doc/aclocal-1.11.1 automake-1.11.1/doc/aclocal-1.11.1
--- automake-1.11.1.orig/doc/aclocal-1.11.1	2009-12-08 19:15:56.000000000 +0100
+++ automake-1.11.1/doc/aclocal-1.11.1	2010-09-28 18:42:59.000000000 +0200
@@ -47,6 +47,9 @@
 report the warnings falling in CATEGORY
 .SS "Warning categories include:"
 .TP
+`cross'
+cross compilation issues
+.TP
 `syntax'
 dubious syntactic constructs (default)
 .TP
diff -usbr automake-1.11.1.orig/lib/Automake/ChannelDefs.pm automake-1.11.1/lib/Automake/ChannelDefs.pm
--- automake-1.11.1.orig/lib/Automake/ChannelDefs.pm	2009-12-08 19:06:45.000000000 +0100
+++ automake-1.11.1/lib/Automake/ChannelDefs.pm	2010-09-28 18:46:22.000000000 +0200
@@ -150,6 +150,7 @@
   footer => "\nPlease contact <bug-automake\@gnu.org>.",
   uniq_part => UP_NONE, ordered => 0;
 
+register_channel 'cross', type => 'warning';
 register_channel 'gnu', type => 'warning';
 register_channel 'obsolete', type => 'warning', silent => 1;
 register_channel 'override', type => 'warning', silent => 1;
@@ -175,6 +176,7 @@
 sub usage ()
 {
   print "Warning categories include:
+  `cross'         cross compilation issues
   `gnu'           GNU coding standards (default in gnu and gnits modes)
   `obsolete'      obsolete features or constructions
   `override'      user redefinitions of Automake rules or variables
@@ -262,7 +264,11 @@
       $has_no = 1;
     }
 
-  if ($cat eq 'all')
+  if ($cat eq 'cross')
+    {
+      setup_channel_type 'warning', silent => $has_no;
+    }
+  elsif ($cat eq 'all')
     {
       setup_channel_type 'warning', silent => $has_no;
     }