[OE-core] [RFC PATCH] autoconf: Override config.guess/.sub in source tree

[Nathan Rossi]

autoconf has not been released in a number of years. However many
changes have been made to the gnu-config config.guess/.sub since 2.69,
including new architectures, OS variants, etc. In order to enable these
targets without creating patches for the source itself populate the
gnu-config files from the sysroot as is done with autotools recipes.
Whilst it is not possible for the autoconf recipe to bootstrap its
configure task (using the autotools_do_configure), the files can be
manually copied into the target location.

Signed-off-by: Nathan Rossi <nathan at nathanrossi.com>
---
 meta/recipes-devtools/autoconf/autoconf.inc | 4 ++++
 1 file changed, 4 insertions(+)

diff --git a/meta/recipes-devtools/autoconf/autoconf.inc b/meta/recipes-devtools/autoconf/autoconf.inc
index ea62df8fb6..df81bc6107 100644
--- a/meta/recipes-devtools/autoconf/autoconf.inc
+++ b/meta/recipes-devtools/autoconf/autoconf.inc
@@ -41,6 +41,10 @@ PERL_class-nativesdk = "/usr/bin/env perl"
 CACHED_CONFIGUREVARS += "ac_cv_path_PERL='${PERL}'"
 
 do_configure() {
+	# manually install a newer config.guess/.sub
+	install -m 0755 ${STAGING_DATADIR_NATIVE}/gnu-config/config.guess ${S}/build-aux
+	install -m 0755 ${STAGING_DATADIR_NATIVE}/gnu-config/config.sub ${S}/build-aux
+
 	oe_runconf
 }
 
-- 
2.15.0