[OE-core] [PATCH 2/2] gcc-cross: Fix header file corruption problems

[Richard Purdie]

gcc's makefile can move files, replacing with the contents "timestamp". This
corrupts the headers and breaks things like the gcc testsuite.

Add in a fix to ensure the headers are not corrupted through their hardlink copies.

Signed-off-by: Richard Purdie <richard.purdie at linuxfoundation.org>
---
 meta/recipes-devtools/gcc/gcc-cross.inc | 3 +++
 1 file changed, 3 insertions(+)

diff --git a/meta/recipes-devtools/gcc/gcc-cross.inc b/meta/recipes-devtools/gcc/gcc-cross.inc
index e417b898734..95af6d89a9d 100644
--- a/meta/recipes-devtools/gcc/gcc-cross.inc
+++ b/meta/recipes-devtools/gcc/gcc-cross.inc
@@ -212,6 +212,9 @@ do_gcc_stash_builddir[cleandirs] = "${BUILDDIRSTASH}"
 do_gcc_stash_builddir () {
 	dest=${BUILDDIRSTASH}
 	hardlinkdir . $dest
+	# Makefile does move-if-change which can end up with 'timestamp' as file contents so break links to those files
+	rm $dest/gcc/include/*.h
+	cp gcc/include/*.h $dest/gcc/include/
 }
 addtask do_gcc_stash_builddir after do_compile before do_install
 SSTATETASKS += "do_gcc_stash_builddir"
-- 
2.20.1