File libgpg-error-1.10-deffile.patch of Package mingw64-libgpg-error

--- libgpg-error-1.10/src/Makefile.am	2010-09-16 15:09:17.000000000 +0200
+++ libgpg-error-1.10/src/Makefile.am	2013-11-23 23:43:45.789386238 +0100
@@ -162,7 +162,7 @@
 gpg-error.def: Makefile gpg-error.def.in
 	cat $(srcdir)/gpg-error.def.in >_$@.h
 	$(CPP) $(DEFAULT_INCLUDES) $(INCLUDES) $(extra_cppflags) _$@.h | \
-	  grep -v '^#' >$@
+	  grep -v '^#' | grep '.' >$@
 	-rm _$@.h
 
 # It is correct to use $(CC_FOR_BUILD) here.  We want to run the