Add CLIPS (#3573)

dev-lang/clips/clips-6.30.recipe

@@ -0,0 +1,44 @@
+SUMMARY="C Language Integrated Production System"
+DESCRIPTION="CLIPS is an OPS-like forward chaining production system \
+written in ANSI C by NASA. The CLIPS inference engine \
+includes truth maintenance, dynamic rule addition, and \
+customizable conflict resolution strategies."
+HOMEPAGE="http://www.clipsrules.net"
+COPYRIGHT="1985-2015, NASA, Gary Riley"
+LICENSE="MIT"
+REVISION="1"
+SOURCE_URI="http://sourceforge.net/projects/clipsrules/files/CLIPS/6.30/clips_core_source_630.zip"
+CHECKSUM_SHA256="01555b257efae281199b82621ad5cc1106a395acc095b9ba66f40fe50fe3ef1c"
+SOURCE_DIR="clips_core_source_630"
+
+ARCHITECTURES="x86_gcc2 ?x86 x86_64"
+
+PROVIDES="
+	clips = $portVersion
+	cmd:clips
+	"
+REQUIRES="
+	haiku
+	"
+
+BUILD_REQUIRES="
+	haiku_devel
+	"
+BUILD_PREREQUIRES="
+	cmd:gcc
+	cmd:ld
+	cmd:make
+	"
+
+BUILD()
+{
+	cp makefiles/makefile.gcc core/
+	cd core
+	make -f makefile.gcc
+}
+
+INSTALL()
+{
+	mkdir -p $binDir
+	cp core/clips $binDir
+}