Bump buildroot to 2019.02

bsp/buildroot/package/libglib2/libglib2.hash

@@ -1,4 +1,4 @@
-# https://download.gnome.org/sources/glib/2.54/glib-2.54.2.sha256sum
-sha256  bb89e5c5aad33169a8c7f28b45671c7899c12f74caf707737f784d7102758e6c  glib-2.54.2.tar.xz
+# https://download.gnome.org/sources/glib/2.56/glib-2.56.3.sha256sum
+sha256  a9a4c5b4c81b6c75bc140bdf5e32120ef3ce841b7413214ecf5f987acec74cb2  glib-2.56.3.tar.xz
 # License files, locally calculated
 sha256	dc626520dcd53a22f727af3ee42c770e56c97a64fe3adb063799d8ab032fe551  COPYING

bsp/buildroot/package/libglib2/libglib2.mk

@@ -4,8 +4,8 @@
 #
 ################################################################################
 
-LIBGLIB2_VERSION_MAJOR = 2.54
-LIBGLIB2_VERSION = $(LIBGLIB2_VERSION_MAJOR).2
+LIBGLIB2_VERSION_MAJOR = 2.56
+LIBGLIB2_VERSION = $(LIBGLIB2_VERSION_MAJOR).3
 LIBGLIB2_SOURCE = glib-$(LIBGLIB2_VERSION).tar.xz
 LIBGLIB2_SITE = http://ftp.gnome.org/pub/gnome/sources/glib/$(LIBGLIB2_VERSION_MAJOR)
 LIBGLIB2_LICENSE = LGPL-2.1+
@@ -112,9 +112,14 @@ HOST_LIBGLIB2_DEPENDENCIES = \
 	host-util-linux \
 	host-zlib
 
+# We explicitly specify a giomodule-dir to avoid having a value
+# containing ${libdir} in gio-2.0.pc. Indeed, a value depending on
+# ${libdir} would be prefixed by the sysroot by pkg-config, causing a
+# bogus installation path once combined with $(DESTDIR).
 LIBGLIB2_CONF_OPTS = \
 	--with-pcre=system \
-	--disable-compile-warnings
+	--disable-compile-warnings \
+	--with-gio-module-dir=/usr/lib/gio/modules
 
 ifneq ($(BR2_ENABLE_LOCALE),y)
 LIBGLIB2_DEPENDENCIES += libiconv