pkgconf: upgrade to version 1.4.2

pkgconf improved compatibility with freedesktop.org pkg-config.
So, we don't need to unset PKG_CONFIG_SYSROOT_DIR in wrappers.

(From OE-Core rev: bff4ad7d6f62131a9b91a4063600e6f3edb8843c)

Signed-off-by: Maxin B. John <maxin.john@intel.com>
Signed-off-by: Ross Burton <ross.burton@intel.com>
Signed-off-by: Richard Purdie <richard.purdie@linuxfoundation.org>

meta/recipes-devtools/pkgconf/pkgconf/pkg-config-esdk.in

@@ -5,7 +5,6 @@
 if [ "pkg-config-native" = "`basename $0`" ] ; then
 	PKG_CONFIG_PATH="@PATH_NATIVE@"
 	PKG_CONFIG_LIBDIR="@LIBDIR_NATIVE@"
-	unset PKG_CONFIG_SYSROOT_DIR
 else
 	# in this case check if we are in the esdk
 	if [ "$OE_SKIP_SDK_CHECK" = "1" ] ; then
@@ -16,9 +15,8 @@ else
 		if ( echo $parentpid_info | grep -q check-lxdialog ) ; then
 			PKG_CONFIG_PATH="@PATH_NATIVE@"
 			PKG_CONFIG_LIBDIR="@LIBDIR_NATIVE@"
-			unset PKG_CONFIG_SYSROOT_DIR
 		fi
 	fi
 fi
 
-pkg-config.real "$@"
+pkg-config "$@"

meta/recipes-devtools/pkgconf/pkgconf/pkg-config-native.in

@@ -1,6 +1,5 @@
 #! /bin/sh
 
 PKG_CONFIG_PATH="@PATH_NATIVE@"
-unset PKG_CONFIG_SYSROOT_DIR
 
 pkg-config "$@"

meta/recipes-devtools/pkgconf/pkgconf/pkg-config-wrapper

@@ -4,13 +4,4 @@
 # Copyright (C) 2015 Christopher Larson <chris_larson@mentor.com>
 # License: MIT (see COPYING.MIT at the root of the repository for terms)
 
-for arg; do
-    case "$arg" in
-        --variable|--variable=*)
-            # pkg-config doesn't sysroot-prefix user variables
-            unset PKG_CONFIG_SYSROOT_DIR
-            ;;
-    esac
-done
-
 exec pkgconf "$@"

meta/recipes-devtools/pkgconf/pkgconf_1.4.2.bb

@@ -21,8 +21,8 @@ SRC_URI = "\
     file://pkg-config-native.in \
     file://pkg-config-esdk.in \
 "
-SRC_URI[md5sum] = "c509c0dad5a70aa4bc3210557b7eafce"
-SRC_URI[sha256sum] = "1d112ff35dad516ffbfbdb013df3a035140618fe7632ec44ffa894a9c713301b"
+SRC_URI[md5sum] = "678d242b4eef1754bba6a58642af10bb"
+SRC_URI[sha256sum] = "bab39371d4ab972be1d539a8b10b6cc21f8eafc97f617102e667e82bd32eb234"
 
 inherit autotools update-alternatives