main/zsh: backport some patches from upstream

These patches are copied from Fedora package. Both of them has been
already accepted by upstream.

main/zsh/APKBUILD

@@ -2,7 +2,7 @@
 # Maintainer: Natanael Copa <ncopa@alpinelinux.org>
 pkgname=zsh
 pkgver=5.2
-pkgrel=0
+pkgrel=1
 pkgdesc="A very advanced and programmable command interpreter (shell)"
 url="http://www.zsh.org/"
 arch="all"
@@ -12,7 +12,9 @@ makedepends="ncurses-dev"
 install="zsh.post-install zsh.post-upgrade zsh.pre-deinstall"
 source="http://www.zsh.org/pub/$pkgname-$pkgver.tar.xz
 	zprofile
-	fix-zle-segfault.patch"
+	fix-zle-segfault.patch
+	fix-oom-fatal-error.patch
+	fix-vcs_info.patch"
 subpackages="$pkgname-doc"
 builddir="$srcdir/$pkgname-$pkgver"
 
@@ -52,10 +54,16 @@ package() {
 
 md5sums="afe96fde08b70e23c1cab1ca7a68fb34  zsh-5.2.tar.xz
 a5e93cd6880da04a63fc4fcaaa03987f  zprofile
-1413688affa980b053dd2cdc784f8626  fix-zle-segfault.patch"
+1413688affa980b053dd2cdc784f8626  fix-zle-segfault.patch
+e928fc47e21e8d6fed9008b397d4f2f7  fix-oom-fatal-error.patch
+0220f95cc0bceefdc13ebf994716ad9d  fix-vcs_info.patch"
 sha256sums="f17916320ffaa844bbd7ce48ceeb5945fc5f3eff64b149b4229bbfbdf3795a9d  zsh-5.2.tar.xz
 e3c3625d966c8277274798f26241857df5fc520e18674deba6cc356f6b022d63  zprofile
-7b8bfec6f7c0df6954eb27a000ff1d077e37a1ec9fd9f37c247a53922cf0c9be  fix-zle-segfault.patch"
+7b8bfec6f7c0df6954eb27a000ff1d077e37a1ec9fd9f37c247a53922cf0c9be  fix-zle-segfault.patch
+08285e5794b72be52adf891673342ad3a0faca6912792bff120c81229c80d29e  fix-oom-fatal-error.patch
+ab5557588a0530f1ed423f5b0fae1445465abeac4eb7820f7df8604b456a1d39  fix-vcs_info.patch"
 sha512sums="9938af95e09203a0a313f441e0c23279136806f6f087475ca9a66c678c57ecffc87f73ece8133a36700af8de7cb5d1bec8559eabdec2b66102062e64026c2e72  zsh-5.2.tar.xz
 59182b99447872ded8adf0d890e9359ee47fce0b7acb2808f4308f945885fbf6d977a0917bbb5c0f21454caf3ba06ab092127732da4f84292d6ab0989a0110fe  zprofile
-f17016b4cb95932caabdfca273696f4a444f1e45c8e7d458db54ae12542fce87bdd6fc6c4cd070948041f50760389179c69c12296665b7b9651007faafbdbee7  fix-zle-segfault.patch"
+f17016b4cb95932caabdfca273696f4a444f1e45c8e7d458db54ae12542fce87bdd6fc6c4cd070948041f50760389179c69c12296665b7b9651007faafbdbee7  fix-zle-segfault.patch
+3a6060af73e3aa29bf3606fb8d7c8c68080f83a7e9d0b5614356ef0981773d836bbb6abfc7c3142e5037dd9c36a688ccdb44b81bbca5206c67ae3d8e1b6b23a6  fix-oom-fatal-error.patch
+addf598f1f380f08fd5682efedc493bd37f7a3c606da74ad87efe18906dcecfad7f19fdfe1b9a03bf2dc8d265d2738fd43f3d0fae78767837699c5614a5369bb  fix-vcs_info.patch"

main/zsh/fix-oom-fatal-error.patch

+From 3925a4fbed618504f49e2a8a5551cc5800d9353b Mon Sep 17 00:00:00 2001
+From: Peter Stephenson <pws@zsh.org>
+Date: Mon, 25 Jan 2016 15:43:06 +0000
+Subject: [PATCH 1/2] 37776: Set errflag before calls to zwarning().
+
+This avoids an attempt to call zerr() or zerrnam() recusrively.
+
+Upstream-commit: be32864e6ff6a872d63314b4baedbfbf2eed54bd
+Signed-off-by: Kamil Dudka <kdudka@redhat.com>
+---
+ Src/utils.c | 4 ++--
+ 1 file changed, 2 insertions(+), 2 deletions(-)
+
+diff --git a/Src/utils.c b/Src/utils.c
+index 4640970..9ce3ee9 100644
+--- a/Src/utils.c
++++ b/Src/utils.c
+@@ -169,12 +169,12 @@ VA_DCL
+ 	    errflag |= ERRFLAG_ERROR;
+ 	return;
+     }
++    errflag |= ERRFLAG_ERROR;
+ 
+     VA_START(ap, fmt);
+     VA_GET_ARG(ap, fmt, const char *);
+     zwarning(NULL, fmt, ap);
+     va_end(ap);
+-    errflag |= ERRFLAG_ERROR;
+ }
+ 
+ /**/
+@@ -188,13 +188,13 @@ VA_DCL
+ 
+     if (errflag || noerrs)
+ 	return;
++    errflag |= ERRFLAG_ERROR;
+ 
+     VA_START(ap, fmt);
+     VA_GET_ARG(ap, cmd, const char *);
+     VA_GET_ARG(ap, fmt, const char *);
+     zwarning(cmd, fmt, ap);
+     va_end(ap);
+-    errflag |= ERRFLAG_ERROR;
+ }
+ 
+ /**/
+-- 
+2.5.0
+
+
+From 7a028030cfdcd85b61950e4a530442ebff359f4c Mon Sep 17 00:00:00 2001
+From: Kamil Dudka <kdudka@redhat.com>
+Date: Mon, 25 Jan 2016 18:01:07 +0100
+Subject: [PATCH 2/2] 37780: Care printing error if nothing to print.
+
+Upstream-commit: 69c86cd2c3f1533d9b4b345f98d3922418bc6dac
+Signed-off-by: Kamil Dudka <kdudka@redhat.com>
+---
+ Src/utils.c | 7 ++++---
+ 1 file changed, 4 insertions(+), 3 deletions(-)
+
+diff --git a/Src/utils.c b/Src/utils.c
+index 9ce3ee9..bb3c241 100644
+--- a/Src/utils.c
++++ b/Src/utils.c
+@@ -133,9 +133,11 @@ zwarning(const char *cmd, const char *fmt, va_list ap)
+     if (isatty(2))
+ 	zleentry(ZLE_CMD_TRASH);
+ 
++    char *prefix = scriptname ? scriptname : (argzero ? argzero : "");
++
+     if (cmd) {
+ 	if (unset(SHINSTDIN) || locallevel) {
+-	    nicezputs(scriptname ? scriptname : argzero, stderr);
++	    nicezputs(prefix, stderr);
+ 	    fputc((unsigned char)':', stderr);
+ 	}
+ 	nicezputs(cmd, stderr);
+@@ -147,8 +149,7 @@ zwarning(const char *cmd, const char *fmt, va_list ap)
+ 	 * program/script is running.  It's also set in shell functions,
+ 	 * so test locallevel, too.
+ 	 */
+-	nicezputs((isset(SHINSTDIN) && !locallevel) ? "zsh" :
+-		  scriptname ? scriptname : argzero, stderr);
++	nicezputs((isset(SHINSTDIN) && !locallevel) ? "zsh" : prefix, stderr);
+ 	fputc((unsigned char)':', stderr);
+     }
+ 
+-- 
+2.5.0
+

main/zsh/fix-vcs_info.patch

+From 17f17599d33e334d3ec78ab94956f440f18aaf04 Mon Sep 17 00:00:00 2001
+From: Peter Stephenson <pws@zsh.org>
+Date: Tue, 8 Dec 2015 12:59:48 +0000
+Subject: [PATCH 1/2] 37347: Remove incorrect local for msgs in VCS info
+
+Upstream-commit: 4105f79a3a9b5a85c4ce167865e5ac661be160dc
+Signed-off-by: Kamil Dudka <kdudka@redhat.com>
+---
+ Functions/VCS_Info/VCS_INFO_nvcsformats | 1 -
+ 1 file changed, 1 deletion(-)
+
+diff --git a/Functions/VCS_Info/VCS_INFO_nvcsformats b/Functions/VCS_Info/VCS_INFO_nvcsformats
+index 203a86d..581aa5a 100644
+--- a/Functions/VCS_Info/VCS_INFO_nvcsformats
++++ b/Functions/VCS_Info/VCS_INFO_nvcsformats
+@@ -4,7 +4,6 @@
+ 
+ setopt localoptions noksharrays NO_shwordsplit
+ local c v rr
+-local -a msgs
+ 
+ if [[ $1 == '-preinit-' ]] ; then
+     c='default'
+-- 
+2.5.0
+
+
+From b5cea7b0719e7d1d97dc76ed3df91c865596644a Mon Sep 17 00:00:00 2001
+From: Frank Terbeck <ft@bewatermyfriend.org>
+Date: Wed, 30 Dec 2015 14:58:32 +0100
+Subject: [PATCH 2/2] 37451: vcs_info: Declare "msgs" in early context
+
+The parameter *is* being declared with the redefinition of the
+function, but not in its initial form, which gets you a warning
+about the parameter being defined globally. This fixes it.
+
+Upstream-commit: dab6e7c2319c0aadb39eb9cce677e0a35da8314d
+Signed-off-by: Kamil Dudka <kdudka@redhat.com>
+---
+ Functions/VCS_Info/vcs_info | 2 +-
+ 1 file changed, 1 insertion(+), 1 deletion(-)
+
+diff --git a/Functions/VCS_Info/vcs_info b/Functions/VCS_Info/vcs_info
+index 628dde9..f13f6b5 100644
+--- a/Functions/VCS_Info/vcs_info
++++ b/Functions/VCS_Info/vcs_info
+@@ -10,7 +10,7 @@
+ 
+ setopt localoptions noksharrays extendedglob NO_shwordsplit
+ local file func sys
+-local -a static_functions
++local -a static_functions msgs
+ local -i maxexports
+ 
+ static_functions=(
+-- 
+2.5.0
+