puzzles: Zero'ise structs before use

Fixes build failures with musl where gcc5 flags it used before
initialized.

(From OE-Core rev: dda96dbb3e4cd83fe6b8fd8370c8ca2a737cc078)

Signed-off-by: Khem Raj <raj.khem@gmail.com>
Signed-off-by: Richard Purdie <richard.purdie@linuxfoundation.org>

meta/recipes-sato/puzzles/files/0001-rect-Fix-compiler-errors-about-uninitialized-use-of-.patch

@@ -0,0 +1,32 @@
+From 78d6d1706c21ad467520075ff7a8bf15cfbd68b3 Mon Sep 17 00:00:00 2001
+From: Khem Raj <raj.khem@gmail.com>
+Date: Wed, 30 Dec 2015 22:13:16 +0000
+Subject: [PATCH] rect: Fix compiler errors about uninitialized use of
+ variables
+
+error: 'r2.x' may be used uninitialized in this function
+
+Signed-off-by: Khem Raj <raj.khem@gmail.com>
+---
+Upstream-Status: Submitted
+
+ rect.c | 3 ++-
+ 1 file changed, 2 insertions(+), 1 deletion(-)
+
+diff --git a/rect.c b/rect.c
+index 55667c0..fa3a786 100644
+--- a/rect.c
++++ b/rect.c
+@@ -1317,7 +1317,8 @@ static char *new_game_desc(const game_params *params_in, random_state *rs,
+                     if (ndirs > 0) {
+                         int which, dir;
+                         struct rect r1, r2;
+-
++                        memset(&r1, 0, sizeof(struct rect));
++                        memset(&r2, 0, sizeof(struct rect));
+                         which = random_upto(rs, ndirs);
+                         dir = dirs[which];
+ 
+-- 
+2.6.4
+

meta/recipes-sato/puzzles/puzzles_git.bb

@@ -12,6 +12,7 @@ LIC_FILES_CHKSUM = "file://LICENCE;md5=33bcd4bce8f3c197f2aefbdbd2d299bc"
 SRC_URI = "git://git.tartarus.org/simon/puzzles.git \
            file://fix-compiling-failure-with-option-g-O.patch \
            file://0001-Use-labs-instead-of-abs.patch \
+           file://0001-rect-Fix-compiler-errors-about-uninitialized-use-of-.patch \
 "
 SRCREV = "346584bf6e38232be8773c24fd7dedcbd7b3d9ed"
 PE = "1"