Makefile - Asterisk 18 with latest master always

This is based on https://gh.fakev.cn/kiddin9/openwrt-packages/blob/master/asterisk-chan-quectel/Makefile
Haven't tested it myself, make sure unzip is installed on build system.

openwrt/urlmakefile/current/Ast18/makefile

@@ -0,0 +1,81 @@
+#
+# Copyright (C) 2017 - 2018 OpenWrt.org
+#
+# This is free software, licensed under the GNU General Public License v2.
+# See /LICENSE for more information.
+#
+
+include $(TOPDIR)/rules.mk
+
+PKG_NAME:=asterisk-chan-quectel
+PKG_VERSION:=3.6
+PKG_RELEASE:=3.6
+
+PKG_SOURCE:=master.zip
+PKG_SOURCE_URL:=https://github.com/IchthysMaranatha/asterisk-chan-quectel/archive/refs/heads/
+PKG_CAT:=unzip
+PKG_HASH:=skip
+
+PKG_FIXUP:=autoreconf
+
+PKG_LICENSE:=GPL-2.0
+PKG_LICENSE_FILES:=COPYRIGHT.txt LICENSE.txt
+PKG_MAINTAINER:=Jiri Slachta <[email protected]>
+
+define Build/Prepare
+PKG_BUILD_DIR:=$(BUILD_DIR)/$(PKG_NAME)-$(BUILD_VARIANT)/$(PKG_NAME)-$(PKG_VERSION)
+$(CP) ./src/* $(PKG_BUILD_DIR)/
+endef
+
+
+
+MODULES_DIR:=/usr/lib/asterisk/modules
+
+include $(INCLUDE_DIR)/package.mk
+# asterisk-chan-quectel needs iconv
+include $(INCLUDE_DIR)/nls.mk
+
+define Package/$(PKG_NAME)
+  SUBMENU:=Telephony
+  SECTION:=net
+  CATEGORY:=Network
+  URL:=https://github.com/IchthysMaranatha/asterisk-chan-quectel
+  DEPENDS:=asterisk $(ICONV_DEPENDS) +kmod-usb-acm +kmod-usb-serial +kmod-usb-serial-option +libusb-1.0 +alsa-lib
+  TITLE:=Asterisk Mobile Telephony Module
+endef
+
+define Package/$(PKG_NAME)/description
+ Asterisk channel driver for mobile telephony.
+endef
+
+
+CONFIGURE_ARGS+= \
+	--with-asterisk=$(STAGING_DIR)/usr/include \
+		--with-astversion=18 \
+		--with-iconv=$(ICONV_PREFIX)/include
+
+TARGET_CFLAGS+= \
+	-I$(CHAN_quectel_AST_HEADERS)
+
+MAKE_FLAGS+=LD="$(TARGET_CC)"
+
+CONFIGURE_VARS += \
+	DESTDIR="$(MODULES_DIR)" \
+	ac_cv_type_size_t=yes \
+	ac_cv_type_ssize_t=yes
+
+
+define Package/$(PKG_NAME)/conffiles
+	/etc/asterisk/quectel.conf
+endef
+
+
+define Package/$(PKG_NAME)/install
+	$(INSTALL_DIR) $(1)/etc/asterisk
+	$(INSTALL_DATA) $(PKG_BUILD_DIR)/etc/quectel.conf $(1)/etc/asterisk
+	$(INSTALL_DIR) $(1)$(MODULES_DIR)
+	$(INSTALL_BIN) $(PKG_BUILD_DIR)/chan_quectel.so $(1)$(MODULES_DIR)
+endef
+
+
+$(eval $(call BuildPackage,$(PKG_NAME)))