zile: fix gcc5 build issues

Signed-off-by: Ted Hess <thess@kitschensync.net>

utils/zile/patches/010-remove_gets_definition_warning.patch

@@ -0,0 +1,11 @@
+--- a/lib/stdio.in.h
++++ b/lib/stdio.in.h
+@@ -733,7 +733,7 @@ _GL_CXXALIASWARN (gets);
+ /* It is very rare that the developer ever has full control of stdin,
+    so any use of gets warrants an unconditional warning.  Assume it is
+    always declared, since it is required by C89.  */
+-_GL_WARN_ON_USE (gets, "gets is a security hole - use fgets instead");
++#define gets(a) fgets( a, sizeof(*(a)), stdin)
+ #endif
+ 
+