autoconf: Remove code checking for hardcoded /usr/local

This code is only relevant for AIX and causes
problems with OE QA sniffer which detects -L/usr/local/lib
on linker commandline during cross compile and rightly barfs

This only happens when getloadavg() is not found in libc
so we do not reach that code with eglibc but only with uclibc

(From OE-Core rev: f235366c8a39679aa5beadf54a5e0ab7ece90d16)

Signed-off-by: Khem Raj <raj.khem@gmail.com>
Signed-off-by: Richard Purdie <richard.purdie@linuxfoundation.org>

meta/recipes-devtools/autoconf/autoconf/remove-usr-local-lib-from-m4.patch

@@ -0,0 +1,29 @@
+We have problem using hardcoded directories like /usr/local here
+which will be checked for cross builds. This is a special case which
+is valid for AIX only. We do not have AIX as one of our supported
+build host or target. Therefore we get rid of the hardcoded paths
+and make life easier for cross compilation process.
+
+Signed-off-by: Khem Raj <raj.khem@gmail.com>
+
+Upstream-Status: Inappropriate [Upstream does care for AIX while we may not]
+Index: autoconf-2.68/lib/autoconf/functions.m4
+===================================================================
+--- autoconf-2.68.orig/lib/autoconf/functions.m4	2010-09-22 14:52:19.000000000 -0700
++++ autoconf-2.68/lib/autoconf/functions.m4	2011-08-03 11:57:05.822199513 -0700
+@@ -749,15 +749,6 @@ if test $ac_have_func = no; then
+     [LIBS="-lutil $LIBS" ac_have_func=yes ac_cv_func_getloadavg_setgid=yes])
+ fi
+ 
+-if test $ac_have_func = no; then
+-  # There is a commonly available library for RS/6000 AIX.
+-  # Since it is not a standard part of AIX, it might be installed locally.
+-  ac_getloadavg_LIBS=$LIBS
+-  LIBS="-L/usr/local/lib $LIBS"
+-  AC_CHECK_LIB(getloadavg, getloadavg,
+-	       [LIBS="-lgetloadavg $LIBS"], [LIBS=$ac_getloadavg_LIBS])
+-fi
+-
+ # Make sure it is really in the library, if we think we found it,
+ # otherwise set up the replacement function.
+ AC_CHECK_FUNCS(getloadavg, [],

meta/recipes-devtools/autoconf/autoconf_2.68.bb

@@ -1,6 +1,6 @@
 require autoconf.inc
 
-PR = "r1"
+PR = "r2"
 
 PARALLEL_MAKE = ""
 
@@ -16,6 +16,7 @@ SRC_URI += "file://autoreconf-include.patch \
 	    file://autoheader-nonfatal-warnings.patch \
 	    ${@['file://path_prog_fixes.patch', ''][bb.data.inherits_class('native', d)]} \
             file://config_site.patch \
+            file://remove-usr-local-lib-from-m4.patch \
            "
 
 SRC_URI[md5sum] = "864d785215aa60d627c91fcb21b05b07"