syslinux recipe added.

syslinux/recipe.spec

@@ -0,0 +1,17 @@
+name: syslinux
+version: 6.03
+sources: https://mirrors.edge.kernel.org/pub/linux/utils/boot/syslinux/%{name}-%{version}.tar.gz
+dependencies: util-linux
+build-dependencies: nasm, linux-dev, util-linux-dev
+
+@build
+	cd %{name}-%{version}
+	(echo '#include <sys/sysmacros.h>'; cat extlinux/main.c) > main.c.new && \
+		mv main.c.new extlinux/main.c
+	make efi32 efi64 bios installer
+
+@install
+	cd %{name}-%{version}
+	make install \
+		INSTALLROOT="%{pkg}" \
+		EXTLINUXDIR=/boot/extlinux