lightning: Add GNU lightning 2.0.x needed for GNU Smalltalk

GNU lightning is a macro-assembler/jit that is used by GNU
Smalltalk. It supports x86 and ARM backends.

recipes-gnu/lightning/lightning_2.0.6.bb

@@ -0,0 +1,23 @@
+DESCRIPTION = "Macro-Assembler for various backends"
+HOMEPAGE = "http://www.gnu.org/software/lightning/"
+
+DEPENDS = "libtool-native zlib"
+
+LICENSE = "LGPLv3+"
+LIC_FILES_CHKSUM = "file://COPYING.LESSER;md5=6a6a8e020838b23406c81b19c1d46df6"
+
+SRC_URI = "git://git.sv.gnu.org/lightning.git;protocol=git"
+SRCREV= "85ab988cd14233f431a9065633c0de81bca65250"
+S = "${WORKDIR}/git"
+
+PR = "r3"
+
+
+inherit autotools
+
+# Make some default assumptions that disable some tests
+CACHED_CONFIGUREVARS += " \
+	ac_cv_test_x86_x87=no \
+	ac_cv_test_arm_arm=no \
+	ac_cv_test_arm_swf=no \
+	"