--- /dev/null
+diff --git a/lib/stdio.in.h b/lib/stdio.in.h
+index be44891..c2f3041 100644
+--- a/lib/stdio.in.h
++++ b/lib/stdio.in.h
+@@ -180,8 +180,10 @@ _GL_WARN_ON_USE (fflush, "fflush is not always POSIX compliant - "
+ /* 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. */
++#ifdef gets
+ #undef gets
+ _GL_WARN_ON_USE (gets, "gets is a security hole - use fgets instead");
++#endif
+
+ #if @GNULIB_FOPEN@
+ # if @REPLACE_FOPEN@