Bug#608401: luatex: FTBFS on hurd-i386

[Samuel Thibault <sthibault@debian.org>]

tags 608401 + patch
thanks

Forgot the patch of course... (This is against 0.65.0)

Samuel

--- source/texk/web2c/luatexdir/lua/llfslibext.c.original	2010-12-30 14:02:45.000000000 +0000
+++ source/texk/web2c/luatexdir/lua/llfslibext.c	2010-12-30 14:04:25.000000000 +0000
@@ -76,11 +76,26 @@
 
 static int Preadlink(lua_State *L)		/** readlink(path) */
 {
-	char b[PATH_MAX];
 	const char *path = luaL_checkstring(L, 1);
-	int n = readlink(path, b, sizeof(b));
-	if (n==-1) return pusherror(L, path);
+	char *b = NULL;
+	size_t allocated = 128;
+	int n;
+	while (1) {
+		b = malloc(allocated);
+		if (!b) return pusherror(L, path);
+		n = readlink(path, b, allocated);
+		if (n == -1) {
+			free(b);
+			return pusherror(L, path);
+		}
+		if (n < allocated)
+			break;
+		/* Not enough room, try bigger */
+		allocated *= 2;
+		free(b);
+	}
 	lua_pushlstring(L, b, n);
+	free(b);
 	return 1;
 }