gettext,m4: Add -lrt to LDFLAGS for uclibc

uclibc has recently got posix_spawn implementation
and the implementation resided in librt so we link
-lrt to get the configure tests using uclibc provided
definitions and not the gnu-lib wrappers

Let libintl.a live in -staticdev package

(From OE-Core rev: 68e07a5ff114b5f413a5eeedeb551d82bc77774c)

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

meta/recipes-devtools/m4/m4-1.4.16.inc

@@ -5,7 +5,7 @@ LICENSE = "GPLv3"
 LIC_FILES_CHKSUM = "file://COPYING;md5=d32239bcb673463ab874e80d47fae504\
 	            file://examples/COPYING;md5=fbc986d45b3dae6725c29870dd6b669d"
 
-PR = "r2"
+PR = "r3"
 SRC_URI += "file://ac_config_links.patch"
 
 SRC_URI[md5sum] = "a5dfb4f2b7370e9d34293d23fd09b280"

meta/recipes-devtools/m4/m4-1.4.9.inc

@@ -5,7 +5,7 @@ LICENSE = "GPLv2"
 LIC_FILES_CHKSUM = "file://COPYING;md5=751419260aa954499f7abaabaa882bbe\
 	file://examples/COPYING;md5=1d49bd61dc590f014cae7173b43e3e5c"
 
-PR = "r1"
+PR = "r2"
 SRC_URI += "file://fix_for_circular_dependency.patch"
 
 SRC_URI[md5sum] = "1ba8e147aff5e79bd2bfb983d86b53d5"

meta/recipes-devtools/m4/m4.inc

@@ -6,5 +6,5 @@ GNU M4 also has built-in functions for including files, running shell commands,
 inherit autotools
 
 EXTRA_OEMAKE += "'infodir=${infodir}'"
-
+LDFLAGS_prepend_libc-uclibc = " -lrt "
 SRC_URI = "${GNU_MIRROR}/m4/m4-${PV}.tar.gz"