alsa-lib: update to 1.2.4

Backport upstream patch fixing compilation.

Signed-off-by: Rosen Penev <rosenp@gmail.com>

libs/alsa-lib/Makefile

@@ -8,13 +8,13 @@
 include $(TOPDIR)/rules.mk
 
 PKG_NAME:=alsa-lib
-PKG_VERSION:=1.2.3.2
+PKG_VERSION:=1.2.4
 PKG_RELEASE:=1
 
 PKG_SOURCE:=$(PKG_NAME)-$(PKG_VERSION).tar.bz2
 PKG_SOURCE_URL:=ftp://ftp.alsa-project.org/pub/lib/ \
 		http://distfiles.gentoo.org/distfiles/
-PKG_HASH:=e81fc5b7afcaee8c9fd7f64a1e3043e88d62e9ad2c4cff55f578df6b0a9abe15
+PKG_HASH:=f7554be1a56cdff468b58fc1c29b95b64864c590038dd309c7a978c7116908f7
 
 PKG_MAINTAINER:=Ted Hess <thess@kitschensync.net>, \
 		Peter Wagner <tripolar@gmx.at>

libs/alsa-lib/patches/300-snd_plugin.patch

@@ -0,0 +1,27 @@
+From ad8c8e5503980295dd8e5e54a6285d2d7e32eb1e Mon Sep 17 00:00:00 2001
+From: Jaroslav Kysela <perex@perex.cz>
+Date: Thu, 22 Oct 2020 20:57:32 +0200
+Subject: [PATCH] dlmisc: the snd_plugin_dir_set / snd_plugin_dir must be
+ declared even for \!DL_ORIGIN_AVAILABLE
+
+Fixes: 8580c081c2 ("dlsym: add support for ALSA_PLUGIN_DIR environment variable")
+BugLink: https://github.com/alsa-project/alsa-lib/issues/91
+Signed-off-by: Jaroslav Kysela <perex@perex.cz>
+---
+ src/dlmisc.c | 2 --
+ 1 file changed, 2 deletions(-)
+
+--- a/src/dlmisc.c
++++ b/src/dlmisc.c
+@@ -42,11 +42,9 @@
+ #ifndef PIC
+ struct snd_dlsym_link *snd_dlsym_start = NULL;
+ #endif
+-#ifdef DL_ORIGIN_AVAILABLE
+ static int snd_plugin_dir_set = 0;
+ static char *snd_plugin_dir = NULL;
+ #endif
+-#endif
+ 
+ #if defined(DL_ORIGIN_AVAILABLE) && defined(HAVE_LIBPTHREAD)
+ static pthread_mutex_t snd_dlpath_mutex = PTHREAD_MUTEX_INITIALIZER;