libqrencode: needs host-pkgconf

The configure script uses PKG_CHECK_MODULES to check for libpng.

Signed-off-by: Peter Korsgaard <peter@korsgaard.com>

package/libqrencode/libqrencode.mk

@@ -7,6 +7,7 @@
 LIBQRENCODE_VERSION = 3.4.2
 LIBQRENCODE_SOURCE = qrencode-$(LIBQRENCODE_VERSION).tar.gz
 LIBQRENCODE_SITE = http://fukuchi.org/works/qrencode
+LIBQRENCODE_DEPENDENCIES = host-pkgconf
 LIBQRENCODE_INSTALL_STAGING = YES
 LIBQRENCODE_LICENSE = LGPLv2.1+
 LIBQRENCODE_LICENSE_FILES = COPYING