package/vala: bump to version 0.56.17

Fixes:
http://autobuild.buildroot.net/results/f08/f087b879167252690ed198de771292142c6249f8/

Set GI_GIRDIR env variable which is now required for configure
to function.

Details:
https://gitlab.gnome.org/GNOME/vala/-/commit/a9d38070ce86d7994b949f7cb426fbf670a953d8

Signed-off-by: James Hilliard <james.hilliard1@gmail.com>
[yann.morin.1998@free.fr: drop spurious reflow of _DEPENDENCIES]
Signed-off-by: Yann E. MORIN <yann.morin.1998@free.fr>

package/vala/vala.hash

@@ -1,4 +1,4 @@
-# From https://download.gnome.org/sources/vala/0.56/vala-0.56.14.sha256sum
-sha256  9382c268ca9bdc02aaedc8152a9818bf3935273041f629c56de410e360a3f557  vala-0.56.14.tar.xz
+# From https://download.gnome.org/sources/vala/0.56/vala-0.56.17.sha256sum
+sha256  26100c4e4ef0049c619275f140d97cf565883d00c7543c82bcce5a426934ed6a  vala-0.56.17.tar.xz
 # Locally computed
 sha256  5df07007198989c622f5d41de8d703e7bef3d0e79d62e24332ee739a452af62a  COPYING

package/vala/vala.mk

@@ -5,7 +5,7 @@
 ################################################################################
 
 VALA_VERSION_MAJOR = 0.56
-VALA_VERSION = $(VALA_VERSION_MAJOR).14
+VALA_VERSION = $(VALA_VERSION_MAJOR).17
 VALA_SITE = http://download.gnome.org/sources/vala/$(VALA_VERSION_MAJOR)
 VALA_SOURCE = vala-$(VALA_VERSION).tar.xz
 VALA_LICENSE = LGPL-2.1+
@@ -15,7 +15,9 @@ VALA_CPE_ID_VENDOR = gnome
 HOST_VALA_DEPENDENCIES = host-bison host-flex host-libglib2
 # Yes, the autoconf script understands ':' as "xsltproc is not
 # available".
-HOST_VALA_CONF_ENV = ac_cv_path_XSLTPROC=:
+HOST_VALA_CONF_ENV = \
+	ac_cv_path_XSLTPROC=: \
+	GI_GIRDIR="$(STAGING_DIR)/usr/share/gir-1.0"
 HOST_VALA_CONF_OPTS += --disable-valadoc
 
 # We wrap vala, valac and vapigen to point to the proper gir and vapi data dirs