Squashed 'yocto-poky/' content from commit ea562de

git-subtree-dir: yocto-poky
git-subtree-split: ea562de57590c966cd5a75fda8defecd397e6436
diff --git a/meta/recipes-devtools/autoconf/autoconf/preferbash.patch b/meta/recipes-devtools/autoconf/autoconf/preferbash.patch
new file mode 100644
index 0000000..fa76ee9
--- /dev/null
+++ b/meta/recipes-devtools/autoconf/autoconf/preferbash.patch
@@ -0,0 +1,25 @@
+This value is used to determine CONFIG_SHELL and SHELL which may get exported into
+scripts shared via sstate onto other systems.
+
+Some systems have /bin/sh -> dash and others /bin/sh -> bash. Bash is preferred 
+but sometimes we can sometimes end up exporting /bin/sh yet use bashisms.
+
+This patch puts bash first in the search results which avoids the bash/dash confusion.
+
+RP 2012/9/23
+
+Upstream-Status: Inappropriate [OE specific configuration]
+
+Index: autoconf-2.69/lib/m4sugar/m4sh.m4
+===================================================================
+--- autoconf-2.69.orig/lib/m4sugar/m4sh.m4	2012-03-07 17:35:26.000000000 +0000
++++ autoconf-2.69/lib/m4sugar/m4sh.m4	2013-09-23 16:12:38.853597515 +0000
+@@ -229,7 +229,7 @@
+     [_AS_PATH_WALK([/bin$PATH_SEPARATOR/usr/bin$PATH_SEPARATOR$PATH],
+       [case $as_dir in @%:@(
+ 	 /*)
+-	   for as_base in sh bash ksh sh5; do
++	   for as_base in bash sh ksh sh5; do
+ 	     # Try only shells that exist, to save several forks.
+ 	     as_shell=$as_dir/$as_base
+ 	     AS_IF([{ test -f "$as_shell" || test -f "$as_shell.exe"; } &&