gcc-cross-canadian: Add configure-target-libgcc

While we're not going to package the libgcc component as part of the SDK,
we do need to generate it to get the unwind, and quadmath headers.  Without
this change it is not possible to build eglibc or other components that
require these headers with the SDK toolchain.

(From OE-Core rev: e67b24401a366b20644510703c7140be975869ea)

Signed-off-by: Mark Hatle <mark.hatle@windriver.com>
Signed-off-by: Richard Purdie <richard.purdie@linuxfoundation.org>

meta/recipes-devtools/gcc/gcc-cross-canadian.inc

@@ -58,7 +58,7 @@ do_configure () {
 }
 
 do_compile () {
-	oe_runmake all-host
+	oe_runmake all-host configure-target-libgcc
 }
 
 INHIBIT_PACKAGE_STRIP = "1"
@@ -97,6 +97,7 @@ EXEEXT = ""
 BINRELPATH = "${@os.path.relpath(d.expand("${bindir}"), d.expand("${libexecdir}/gcc/${TARGET_SYS}/${BINV}"))}"
 
 do_install () {
+	( cd ${B}/${TARGET_SYS}/libgcc; oe_runmake 'DESTDIR=${D}' install-unwind_h )
 	oe_runmake 'DESTDIR=${D}' install-host
 
 	# Cleanup some of the ${libdir}{,exec}/gcc stuff ...
@@ -137,6 +138,11 @@ do_install () {
 		ln -sf ${BINRELPATH}/${TARGET_PREFIX}$t$suffix $dest$t$suffix
 	done
 
+	# libquadmath headers need to  be available in the gcc libexec dir
+	install -d ${D}${libdir}/gcc/${TARGET_SYS}/${BINV}/include/
+	cp ${S}/libquadmath/quadmath.h ${D}${libdir}/gcc/${TARGET_SYS}/${BINV}/include/
+	cp ${S}/libquadmath/quadmath_weak.h ${D}${libdir}/gcc/${TARGET_SYS}/${BINV}/include/
+
 	chown -R root:root ${D}
 	
 	cross_canadian_bindirlinks
@@ -150,8 +156,9 @@ SYSTEMHEADERS = "/usr/include"
 SYSTEMLIBS = "${target_base_libdir}/"
 SYSTEMLIBS1 = "${target_libdir}/"
 
-EXTRA_OECONF += "--disable-libunwind-exceptions --disable-libssp \
-		--disable-libgomp --disable-libmudflap \
+EXTRA_OECONF += " --enable-poison-system-directories"
+
+EXTRA_OECONF += "--disable-libunwind-exceptions \
 		--with-mpfr=${STAGING_DIR_HOST}${layout_exec_prefix} \
 		--with-mpc=${STAGING_DIR_HOST}${layout_exec_prefix}"