[oe] Fix: stage hidden files as well

[Mike Westerhof]

The following patch is a proposed patch to fix the problem where hidden
files are sometimes missed during staging.  A specific example is that
the symbolic link ".config" is not copied to the kernel staging area,
which causes madwifi-ng to fail to build.

diff --git a/classes/staging.bbclass b/classes/staging.bbclass
index 32038a5..cb19cb9 100644
--- a/classes/staging.bbclass
+++ b/classes/staging.bbclass
@@ -35,6 +35,13 @@ sysroot_stage_dir() {
        if [ -d "$src" ]; then
                mkdir -p "$dest"
                cp -fpPR "$src"/* "$dest"
+               # Get hidden files as well, but carefully
+               for i in "$src"/.*
+               do
+                       if [ "$i" != "$src"/. -a "$i" != "$src"/.. ]; then
+                              cp -fpPR "$i" "$dest"
+                       fi
+               done
        fi
 }

If anyone has a better way to address the copy operations above, that
would be great.

-Mike (mwester)