changes to remove this gcc warning:

  -- ignoring return value of [xxx], declared with attribute warn_unused_result

client.c

@@ -1061,13 +1061,19 @@ static int XPAClientGet(xpa, client)
       if( xpa->nclient > 1 ){
 	snprintf(tbuf, SZ_LINE, "XPA$BEGIN %s:%s %s\n",
 		 client->xclass, client->name, client->method);
-	write(client->fd, tbuf, strlen(tbuf));
+	if( write(client->fd, tbuf, strlen(tbuf)) < 0 ){
+	  fprintf(stderr, "warning: XPA client can't write header\n");
+	}
+      }
+      if( write(client->fd, *(client->bufptr), *(client->lenptr)) < 0 ){
+	fprintf(stderr, "warning: XPA client can't write data\n");
       }
-      write(client->fd, *(client->bufptr), *(client->lenptr));
       if( xpa->nclient > 1 ){
 	snprintf(tbuf, SZ_LINE, "XPA$END   %s:%s %s\n",
 		 client->xclass, client->name, client->method);
-	write(client->fd, tbuf, strlen(tbuf));
+	if( write(client->fd, tbuf, strlen(tbuf)) < 0 ){
+	  fprintf(stderr, "warning: XPA client can't write header\n");
+	}
       }
       /* we can free buf, since its not being passed back */
       if( *(client->bufptr) ){
@@ -1096,7 +1102,9 @@ static int XPAClientGet(xpa, client)
     /* for single client fd mode, we write immediately -- this deals with
        the important case of one client with a large amount of data */
     if( (client->mode & XPA_CLIENT_FD) && (xpa->nclient == 1) ){
-      write(client->fd, *(client->bufptr), *(client->lenptr));
+      if( write(client->fd, *(client->bufptr), *(client->lenptr)) < 0 ){
+	fprintf(stderr, "warning: XPA client can't write data\n");
+      }
       /* reset buf for next read */
       if( *(client->bufptr) ) xfree(*(client->bufptr));
       *(client->bufptr) = NULL;
@@ -1532,8 +1540,9 @@ static int XPAClientLoopFork(xpa, mode)
   else if( pid == 0 ){	/* child */
     /* child write to parent that he is active */
     close(fd[0]);
-    write(fd[1], &active, 1);
-    close(fd[1]);
+    if( write(fd[1], &active, 1) >= 0 ){
+      close(fd[1]);
+    }
 #ifdef USE_DOUBLE_FORK
     /* second fork prevents zombies:
        when child/parent exits, second child is inherited 
@@ -1552,8 +1561,9 @@ static int XPAClientLoopFork(xpa, mode)
   } else {		/* parent */
     /* parent waits for child to wake up */
     close(fd[1]);
-    read(fd[0], &active, 1);
-    close(fd[0]);
+    if( read(fd[0], &active, 1) >= 0 ){
+      close(fd[0]);
+    }
 #ifdef USE_DOUBLE_FORK
     /* for double fork, also wait for intermediate process to exit */
     waitpid(pid, NULL, 0);

find.c

@@ -188,7 +188,9 @@ char *ResolvePath(ibuf, obuf, maxlen)
 
   /* if we have a relative path to deal with, get current directory */
   if( (*ibuf == '.') || ( (strchr(ibuf, '/') != NULL) && (*ibuf != '/') ) ){
-    getcwd(path, MAXBUFSIZE);
+    if( !getcwd(path, MAXBUFSIZE) ){
+      *path = '\0';
+    }
   }
   else{
     *path = '\0';

xalloc.c

@@ -40,7 +40,9 @@ static void _xalloc_error(void)
 static void _xalloc_error()
 #endif
 {
-  write(1, XALLOC_ERROR, strlen(XALLOC_ERROR));
+  if( write(1, XALLOC_ERROR, strlen(XALLOC_ERROR)) < 0 ){
+    exit(1);
+  }
 #if XALLOC_SETJMP
   if( xalloc_envptr )
     longjmp(*xalloc_envptr, XALLOC_SETJMP);

xlaunch.c

@@ -220,7 +220,9 @@ static int launch_fork_exec(char *cmdstring, int attach,
 	  case 2:
 	    /* if stderr is the same as stdout, just dup */
 	    if( stdfiles[1] && !strcmp(stdfiles[1], stdfiles[i]) ){
-	      dup(1);
+	      if( dup(1) < 0 ){
+		_exit(-1);
+	      }
 	    }
 	    else{
 	      if( open(stdfiles[i], O_CREAT|O_WRONLY|O_TRUNC, 0600) < 0){
@@ -279,8 +281,9 @@ static int launch_fork_exec(char *cmdstring, int attach,
       status = 127;
 #if LAUNCH_USE_PIPE
       if( !attach ){
-	write(fd[1], &status, 4);
-	close(fd[1]);
+	if( write(fd[1], &status, 4) >= 0 ){
+	  close(fd[1]);
+	}
       }
 #endif
       _exit(status);		/* exec error */