From 0d7eeab134669dbe801625bc75fb8f7a97cd0200 Mon Sep 17 00:00:00 2001
From: Petr Baudis <pasky@ucw.cz>
Date: Sun, 22 Jan 2012 19:56:17 +0100
Subject: [PATCH] Get rid of alloca() usage - non-portable

Pointed out by linfk.
---
 board.c                   | 1 -
 distributed/distributed.c | 5 ++---
 uct/uct.c                 | 5 ++---
 3 files changed, 4 insertions(+), 7 deletions(-)

diff --git a/board.c b/board.c
index 1a06d1c..9d97e35 100644
--- a/board.c
+++ b/board.c
@@ -1,4 +1,3 @@
-#include <alloca.h>
 #include <assert.h>
 #include <math.h>
 #include <stdio.h>
diff --git a/distributed/distributed.c b/distributed/distributed.c
index babbd76..f5dae52 100644
--- a/distributed/distributed.c
+++ b/distributed/distributed.c
@@ -71,7 +71,6 @@
 #include <stdlib.h>
 #include <string.h>
 #include <time.h>
-#include <alloca.h>
 #include <unistd.h>
 #include <sys/types.h>
 
@@ -315,8 +314,8 @@ distributed_genmove(struct engine *e, struct board *b, struct time_info *ti,
 
 	/* Combined move stats from all slaves, only for children
 	 * of the root node, plus 2 for pass and resign. */
-	struct large_stats *stats = alloca((board_size2(b)+2) * sizeof(struct large_stats));
-	stats += 2;
+	struct large_stats stats_array[board_size2(b) + 2], *stats;
+	stats = &stats_array[2];
 
 	protocol_lock();
 	clear_receive_queue();
diff --git a/uct/uct.c b/uct/uct.c
index 385ee5d..1bbe15d 100644
--- a/uct/uct.c
+++ b/uct/uct.c
@@ -95,9 +95,8 @@ uct_prepare_move(struct uct *u, struct board *b, enum stone color)
 static void
 dead_group_list(struct uct *u, struct board *b, struct move_queue *mq)
 {
-	struct group_judgement gj;
-	gj.thres = GJ_THRES;
-	gj.gs = alloca(board_size2(b) * sizeof(gj.gs[0]));
+	enum gj_state gs_array[board_size2(b)];
+	struct group_judgement gj = { .thres = GJ_THRES, .gs = gs_array };
 	board_ownermap_judge_groups(b, &u->ownermap, &gj);
 	groups_of_status(b, &gj, GS_DEAD, mq);
 }
-- 
2.11.4.GIT