From 15670744cc6a182cf0d2a4ed16748255ac1ff5c8 Mon Sep 17 00:00:00 2001
From: Sam James <sam@gentoo.org>
Date: Mon, 24 Oct 2022 18:48:48 +0100
Subject: [PATCH 2/2] Fix musl build

Bug: https://bugs.gentoo.org/832835
--- a/gt-itm/src/dfs.c
+++ b/gt-itm/src/dfs.c
@@ -19,22 +19,22 @@ static char dfsID[]="$Id: dfs.c,v 1.1 1996/10/04 13:36:32 calvert Exp $";
 
 #define NBBY 8
 
-int dfs(Graph *G,int n,u_char *vis);
+int dfs(Graph *G,int n,unsigned char *vis);
 
 /* check connectivity of graph g                        */
 /* uses depth-first search.                             */
 int isconnected(Graph *G)
 {
-u_char *vis;
+unsigned char *vis;
 Vertex *vp;
 int i,nbytes;
 
     nbytes = (G->n/NBBY)+ (G->n%NBBY?1:0);
 
     if (nbytes < STACKMAX) {	/* for small amounts we use stack frame */
-        vis = (u_char *) alloca(nbytes);
+        vis = (unsigned char *) alloca(nbytes);
     } else {
-        vis = (u_char *) malloc(nbytes);
+        vis = (unsigned char *) malloc(nbytes);
     }
 
     for (i=0; i<nbytes; i++) vis[i]=0;
@@ -54,7 +54,7 @@ int i,nbytes;
 /* trivial depth-first search. */
 /* Returns number of newly-visited nodes in subtree rooted at node n. */
 int
-dfs(Graph *G,int n,u_char *vis)
+dfs(Graph *G,int n,unsigned char *vis)
 {
 int nvis, i, nextn;
 Vertex *vp;
--- a/gt-itm/src/geog.c
+++ b/gt-itm/src/geog.c
@@ -148,7 +148,7 @@ Graph *
 geo(long seed, geo_parms *pp)
 {
 double p,d,L,radius,r;
-u_char *occ;
+unsigned char *occ;
 int scale;
 unsigned nbytes, index, x, y;
 u_long units,pertrange;
@@ -189,10 +189,10 @@ char namestr[128];
     nbytes = ((scale*scale)%NBBY ? (scale*scale/NBBY)+1 : (scale*scale)/NBBY);
 
     if (nbytes < STACKMAX) {	/* small amount - just do it in the stack */
-        occ = (u_char *) alloca(nbytes);
+        occ = (unsigned char *) alloca(nbytes);
         mallocd = 0;
     } else {
-        occ = (u_char *) malloc(nbytes);
+        occ = (unsigned char *) malloc(nbytes);
         mallocd = 1;
     }