whois: add package

Better a separate package than enabling it via busybox.
Special thanks to @neheb for the Makefile patches.

Signed-off-by: Paul Spooren <mail@aparcar.org>

utils/whois/Makefile

@@ -0,0 +1,48 @@
+include $(TOPDIR)/rules.mk
+
+PKG_NAME:=whois
+PKG_VERSION:=5.5.7
+PKG_RELEASE:=1
+
+PKG_SOURCE:=$(PKG_NAME)_$(PKG_VERSION).tar.xz
+PKG_SOURCE_URL:=http://ftp.debian.org/debian/pool/main/w/whois
+PKG_HASH:=3efa700dbf38d127c31b21af3176cd6e5a69f96a056be60ac1dcd13df7717393
+
+PKG_BUILD_DIR:=$(BUILD_DIR)/$(PKG_NAME)
+PKG_BUILD_DEPENDS:=perl/host
+
+PKG_MAINTAINER:=Paul Spooren <mail@aparcar.org>
+PKG_LICENSE:=GPL-2.0-only
+PKG_LICENSE_FILES:=COPYING
+
+PKG_INSTALL:=1
+PKG_BUILD_PARALLEL:=1
+
+include $(INCLUDE_DIR)/package.mk
+include $(INCLUDE_DIR)/nls.mk
+
+define Package/whois
+  SECTION:=utils
+  CATEGORY:=Utilities
+  TITLE:=Intelligent WHOIS client
+  URL:=https://github.com/rfc1036/whois
+endef
+
+define Package/whois/description
+This client is intelligent and can automatically select the appropriate whois
+server for most queries.
+
+The internal database is often more accurate than IANA's published one, but
+please send me any information you have regarding domains and network resources
+which are not correctly handled by the program.
+endef
+
+EXTRA_CFLAGS+=-DHAVE_GETOPT_LONG
+MAKE_FLAGS += PERL=$(STAGING_DIR_HOSTPKG)/usr/bin/perl
+
+define Package/whois/install
+	$(INSTALL_DIR) $(1)/usr/bin
+	$(INSTALL_BIN) $(PKG_INSTALL_DIR)/usr/bin/whois $(1)/usr/bin/whois
+endef
+
+$(eval $(call BuildPackage,whois))