quassel-irssi: Fix compilation with GCC8

It throws new warnings which triggers -Werror. Remove it.

Added support for full NLS.

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

net/quassel-irssi/Makefile

@@ -10,7 +10,7 @@ include $(TOPDIR)/rules.mk
 PKG_NAME:=quassel-irssi
 PKG_SOURCE_DATE:=2017-11-30
 PKG_SOURCE_VERSION:=079be662dde374a383646256108a4974c2bc7796
-PKG_RELEASE:=1
+PKG_RELEASE:=2
 
 PKG_SOURCE:=$(PKG_NAME)-$(PKG_SOURCE_DATE).tar.gz
 PKG_SOURCE_URL:=https://codeload.github.com/phhusson/quassel-irssi/tar.gz/$(PKG_SOURCE_VERSION)?
@@ -25,6 +25,7 @@ PKG_BUILD_PARALLEL:=1
 PKG_INSTALL:=1
 
 include $(INCLUDE_DIR)/package.mk
+include $(INCLUDE_DIR)/nls.mk
 
 MAKE_PATH := core
 MAKE_VARS += SYSTEM_QUASSELC=1 IRSSI_CFLAGS="$(TARGET_CFLAGS) $(EXTRA_CFLAGS) $(TARGET_CPPFLAGS) $(EXTRA_CPPFLAGS)" IRSSI_INCLUDE=$(STAGING_DIR)/usr/include/irssi

net/quassel-irssi/patches/001-respect-cflags.patch

@@ -14,7 +14,7 @@
  endif
  
 -CFLAGS=-std=gnu11 -Wall -Wextra -Werror -g -O2 $(IRSSI_CFLAGS) $(QUASSELC_FLAGS) -Wmissing-prototypes -Wmissing-declarations
-+CFLAGS+=-std=gnu11 -Wall -Wextra -Werror -g $(IRSSI_CFLAGS) $(QUASSELC_FLAGS) -Wmissing-prototypes -Wmissing-declarations
++CFLAGS+=-std=gnu11 -Wall -Wextra -g $(IRSSI_CFLAGS) $(QUASSELC_FLAGS) -Wmissing-prototypes -Wmissing-declarations
  
  CFLAGS += $(SSL_CFLAGS)
  LDFLAGS+= $(SSL_LDLAGS)