[OE-core] [PATCH] layer.conf: Exclude gcc-cross dependencies from checksums

[Richard Purdie]

gcc-cross technically depends on the C library however we can use
one toolchain for multiple different tunes within a given architecture.

Manually remove these dependencies so that gcc-cross isn't rebuild with
every tune change.

Signed-off-by: Richard Purdie <richard.purdie at linuxfoundation.org>
---
diff --git a/meta/conf/layer.conf b/meta/conf/layer.conf
index 18609dd..dbcb653 100644
--- a/meta/conf/layer.conf
+++ b/meta/conf/layer.conf
@@ -31,3 +31,10 @@ SIGGEN_EXCLUDERECIPES_ABISAFE += " \
   packagegroup-x11-xserver \
   systemd-serialgetty \
 "
+
+SIGGEN_EXCLUDE_SAFE_RECIPE_DEPS += " \
+  gcc-cross-${TARGET_ARCH}->eglibc \
+  gcc-cross-${TARGET_ARCH}->uclibc \
+  gcc-cross-${TARGET_ARCH}->linux-libc-headers \
+"
+