glib2: fix host build

Seems to need -liconv.

Signed-off-by: Rosen Penev <rosenp@gmail.com>

libs/glib2/Makefile

@@ -9,7 +9,7 @@ include $(TOPDIR)/rules.mk
 
 PKG_NAME:=glib2
 PKG_VERSION:=2.64.2
-PKG_RELEASE:=1
+PKG_RELEASE:=2
 
 PKG_SOURCE:=glib-$(PKG_VERSION).tar.xz
 PKG_SOURCE_URL:=@GNOME/glib/2.64
@@ -42,6 +42,7 @@ define Package/glib2/description
   The GLib library of C routines
 endef
 
+HOST_LDFLAGS += -liconv
 TARGET_CFLAGS += -ffunction-sections -fdata-sections -flto
 TARGET_LDFLAGS += -Wl,--gc-sections