procps-ng: use the new gettext logic

This commit switches to use the new gettext logic, which involves:

 - using TARGET_NLS_DEPENDENCIES instead of hand-encoded dependencies
   on gettext/host-gettext

 - using TARGET_NLS_LIBS to force linking against libintl

 - dropping BR2_PACKAGE_GETTEXT selection

Signed-off-by: Thomas Petazzoni <thomas.petazzoni@free-electrons.com>

package/procps-ng/Config.in

@@ -3,7 +3,6 @@ config BR2_PACKAGE_PROCPS_NG
 	depends on BR2_USE_MMU # fork()
 	depends on BR2_PACKAGE_BUSYBOX_SHOW_OTHERS
 	select BR2_PACKAGE_NCURSES
-	select BR2_PACKAGE_GETTEXT if BR2_NEEDS_GETTEXT_IF_LOCALE
 	help
 	  Standard informational utilities and process-handling tools.
 	  Provides things like kill, ps, uptime, free, top, etc...

package/procps-ng/procps-ng.mk

@@ -10,7 +10,8 @@ PROCPS_NG_SITE = http://downloads.sourceforge.net/project/procps-ng/Production
 PROCPS_NG_LICENSE = GPL-2.0+, LGPL-2.0+ (libproc and libps)
 PROCPS_NG_LICENSE_FILES = COPYING COPYING.LIB
 PROCPS_NG_INSTALL_STAGING = YES
-PROCPS_NG_DEPENDENCIES = ncurses host-pkgconf
+PROCPS_NG_DEPENDENCIES = ncurses host-pkgconf $(TARGET_NLS_DEPENDENCIES)
+PROCPS_NG_CONF_OPTS = LIBS=$(TARGET_NLS_LIBS)
 # For 0002-use-pkgconfig-for-ncursesw-cflags.patch
 PROCPS_NG_AUTORECONF = YES
 PROCPS_NG_GETTEXTIZE = YES
@@ -21,11 +22,6 @@ ifeq ($(BR2_PACKAGE_BUSYBOX),y)
 PROCPS_NG_DEPENDENCIES += busybox
 endif
 
-ifeq ($(BR2_NEEDS_GETTEXT_IF_LOCALE),y)
-PROCPS_NG_DEPENDENCIES += gettext
-PROCPS_NG_CONF_OPTS += LIBS=-lintl
-endif
-
 ifeq ($(BR2_PACKAGE_SYSTEMD),y)
 PROCPS_NG_DEPENDENCIES += systemd
 PROCPS_NG_CONF_OPTS += --with-systemd