cpan.bbclass: Fix config error while patches to Makefile.PL

If there is a patch to Makefile.PL, a Makefile.PL but no Makefile
will be placed in ${B}/.pc/xxx.patch/ after do_patch.
And no Makefile will be generated for *this* Makefile.PL.
While do_configure, the original code tries to sed Makefiles
matching with each Makefile.PL in {B}, so this would fail.

(From OE-Core rev: 7c99105d70a16aa9e42429224abed28743e627b2)

Signed-off-by: Xin Ouyang <Xin.Ouyang@windriver.com>
Signed-off-by: Richard Purdie <richard.purdie@linuxfoundation.org>

1 files changed, 1 insertions, 0 deletions

diff --git a/meta/classes/cpan.bbclass b/meta/classes/cpan.bbclass
index 587e688bc2..2e9432c0bb 100644
--- a/meta/classes/cpan.bbclass
+++ b/meta/classes/cpan.bbclass
@@ -23,6 +23,7 @@ cpan_do_configure () {
                 # Use find since there can be a Makefile generated for each Makefile.PL
                 for f in `find -name Makefile.PL`; do
                         f2=`echo $f | sed -e 's/.PL//'`
+                        test -f $f2 || continue
                         sed -i -e "s:\(PERL_ARCHLIB = \).*:\1${PERL_ARCHLIB}:" \
                                 -e 's/perl.real/perl/' \
                                 $f2