devel/m4: add new package (closes #2189)

GNU M4 is a prerequisite to run autoconf and automake.

This patch packages the macro processor.

This is a prerequisite for packaging autoconf and automake.

Signed-off-by: Heinrich Schuchardt <xypron.glpk@gmx.de>

[Fixed commit summary according to our best-practise]

Signed-off-by: Michael Heimpold <mhei@heimpold.de>

devel/m4/Makefile

@@ -0,0 +1,41 @@
+#
+# Copyright (C) 2015 OpenWrt.org
+#
+# This is free software, licensed under the GNU General Public License v2.
+# See /LICENSE for more information.
+#
+
+include $(TOPDIR)/rules.mk
+
+PKG_NAME:=m4
+PKG_VERSION:=1.4.17
+PKG_RELEASE:=1
+
+PKG_SOURCE_URL:=@GNU/m4
+PKG_SOURCE:=$(PKG_NAME)-$(PKG_VERSION).tar.gz
+PKG_MD5SUM:=a5e9954b1dae036762f7b13673a2cf76
+PKG_MAINTAINER:=Heinrich Schuchardt <xypron.glpk@gmx.de>
+PKG_LICENSE:=GPL-3.0+
+
+PKG_INSTALL:=1
+
+include $(INCLUDE_DIR)/package.mk
+
+define Package/m4
+  SECTION:=devel
+  CATEGORY:=Development
+  TITLE:=m4
+  URL:=https://www.gnu.org/software/m4/
+endef
+
+define Package/m4/description
+  GNU M4 is an implementation of the traditional Unix macro processor.
+  It is used by GNU Autoconf and Automake.
+endef
+
+define Package/m4/install
+	$(INSTALL_DIR) $(1)/usr/bin
+	$(INSTALL_BIN) $(PKG_INSTALL_DIR)/usr/bin/m4 $(1)/usr/bin/
+endef
+
+$(eval $(call BuildPackage,m4))