--- a/libpurple/protocols/zephyr/ZPeekPkt.c	Sun Nov 10 04:58:08 2019 -0500
+++ b/libpurple/protocols/zephyr/ZPeekPkt.c	Sun Nov 10 05:20:10 2019 -0500
@@ -10,10 +10,8 @@
 
 #include "internal.h"
 
-Code_t ZPeekPacket(buffer, ret_len, from)
-    char **buffer;
-    int *ret_len;
-    struct sockaddr_in *from;
+Code_t
+ZPeekPacket(char **buffer, int *ret_len, struct sockaddr_in *from)
 {
     Code_t retval;
     struct _Z_InputQ *nextq;