Convert/update diffutils to working recipe

sys-apps/diffutils/diffutils-3.3.recipe

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+SUMMARY="Several programs for finding differences between files."
+DESCRIPTION="
+You can use the diff command to show differences between two files, or
+each corresponding file in two directories. diff outputs differences
+between files line by line in any of several formats, selectable by
+command line options. This set of differences is often called a ‘diff’
+or ‘patch’.
+
+You can use the cmp command to show the offsets and line numbers where
+two files differ. cmp can also show all the characters that differ
+between the two files, side by side.
+
+You can use the diff3 command to show differences among three files.
+When two people have made independent changes to a common original,
+diff3 can report the differences between the original and the two
+changed versions, and can produce a merged file that contains both
+persons' changes together with warnings about conflicts.
+
+You can use the sdiff command to merge two files interactively.
+"
+LICENSE="GNU GPL v3"
+COPYRIGHT="1992-2013 Free Software Foundation, Inc."
+HOMEPAGE="http://www.gnu.org/software/diffutils/" 
+SRC_URI="http://ftp.gnu.org/pub/gnu/diffutils/diffutils-3.3.tar.xz"
+CHECKSUM_MD5="99180208ec2a82ce71f55b0d7389f1b3"
+REVISION="1"
+ARCHITECTURES="x86 x86_gcc2"
+
+PROVIDES="
+	diffutils = $portVersion
+	cmd:diff = $portVersion
+	cmd:cmp = $portVersion
+	cmd:diff3 = $portVersion
+	cmd:sdiff = $portVersion
+	"
+
+REQUIRES="
+	haiku >= $haikuVersion
+	"
+
+BUILD_PREREQUIRES="
+	haiku_devel >= $haikuVersion
+	cmd:make
+	cmd:gcc
+	"
+
+PATCHES="diffutils-3.3.patchset"
+
+SOURCE_DIR="$portVersionedName"
+
+BUILD()
+{
+	runConfigure ./configure \
+	--disable-gcc-warnings
+	make
+}
+
+INSTALL()
+{
+	make install
+}
+
+TEST()
+{
+	make check
+}