glibc: print PN when bbwarn

The current warning is:
WARNING: glibc: unable to generate header for spray.x

Which is easier to debug than:
WARNING: unable to generate header for spray.x

And remove the file before generate it again to fix the warning when
recompile:
file `bootparam_prot.h' already exists and may be overwritten
WARNING: unable to generate header for bootparam_prot.x
file `nlm_prot.h' already exists and may be overwritten
WARNING: unable to generate header for nlm_prot.x
[snip]

(From OE-Core rev: 5ae6d368a89d5f7f3c860f80aa8afb689053afd4)

Signed-off-by: Robert Yang <liezhi.yang@windriver.com>
Signed-off-by: Ross Burton <ross.burton@intel.com>
Signed-off-by: Richard Purdie <richard.purdie@linuxfoundation.org>

1 files changed, 2 insertions, 1 deletions

diff --git a/meta/recipes-core/glibc/glibc_2.21.bb b/meta/recipes-core/glibc/glibc_2.21.bb
index 8197c29d2e..30f19376e8 100644
--- a/meta/recipes-core/glibc/glibc_2.21.bb
+++ b/meta/recipes-core/glibc/glibc_2.21.bb
@@ -135,7 +135,8 @@ do_compile () {
                 cd ${S}/sunrpc/rpcsvc
                 for r in ${rpcsvc}; do
                         h=`echo $r|sed -e's,\.x$,.h,'`
-                        rpcgen -h $r -o $h || bbwarn "unable to generate header for $r"
+                        rm -f $h
+                        rpcgen -h $r -o $h || bbwarn "${PN}: unable to generate header for $r"
                 done
         )
         echo "Adjust ldd script"