crossgcc: Update to clang 4.0

Drop Edward's cfe patch because it has been implemented by
upstream clang differently. Instead of

 $ clang --print-librt-file-name

the right way to get ahold of the compiler-rt builtin library is

 $ clang -rtlib=compiler-rt --print-libgcc-file-name

Change-Id: I8aac5256da5bfb6f7bebeff0959f16b53867c581
Signed-off-by: Stefan Reinauer <>
Tested-by: build bot (Jenkins) <>
Reviewed-by: Patrick Georgi <>
diff --git a/util/crossgcc/sum/clang-tools-extra-4.0.0.src.tar.xz.cksum b/util/crossgcc/sum/clang-tools-extra-4.0.0.src.tar.xz.cksum
new file mode 100644
index 0000000..dbf642c
--- /dev/null
+++ b/util/crossgcc/sum/clang-tools-extra-4.0.0.src.tar.xz.cksum
@@ -0,0 +1 @@
+bdb543c4bb87bd80fe65711114ca0a5c25329ae3  tarballs/clang-tools-extra-4.0.0.src.tar.xz