[OE-core] [PATCH] wayland: Fix hardlink corruption issue

[Richard Purdie]

The way this code was working, the m4 file is hardlinked to the 
copies which would be packaged and could lead to the native m4
file being used in the target packages.

By removing the file first the hardlink is broken and this avoids
corruption (since cp uses open to change the file contents).

Signed-off-by: Richard Purdie <richard.purdie at linuxfoundation.org>

diff --git a/meta/recipes-graphics/wayland/wayland_1.6.0.bb b/meta/recipes-graphics/wayland/wayland_1.6.0.bb
index 00713bf..6413a0a 100644
--- a/meta/recipes-graphics/wayland/wayland_1.6.0.bb
+++ b/meta/recipes-graphics/wayland/wayland_1.6.0.bb
@@ -36,5 +36,6 @@ do_install_append_class-native() {
 }
 
 sysroot_stage_all_append_class-target () {
+	rm ${SYSROOT_DESTDIR}/${datadir}/aclocal/wayland-scanner.m4
 	cp ${STAGING_DATADIR_NATIVE}/aclocal/wayland-scanner.m4 ${SYSROOT_DESTDIR}/${datadir}/aclocal/
 }