Added yosys and friends

sci-electronics/yosys/yosys-9999.ebuild

@@ -0,0 +1,26 @@
+EAPI=8
+
+inherit git-r3
+
+DESCRIPTION="framework for Verilog RTL synthesis"
+HOMEPAGE="http://www.clifford.at/yosys/"
+EGIT_REPO_URI=https://github.com/YosysHQ/yosys
+LICENSE=ISC
+SLOT=0
+KEYWORDS=
+PATCHES=( $FILESDIR/$PN-makefile.patch )
+
+DEPEND="dev-vcs/git
+	media-gfx/xdot
+	dev-libs/boost
+	sys-devel/clang"
+
+src_compile() 
+{
+  emake DESTDIR="$D" PREFIX=/usr
+}
+
+src_install() 
+{
+  emake DESTDIR="$D" PREFIX=/usr install	
+}