alsa-lib: Fix broken patch. Closes #235

extra/alsa-lib/checksums

@@ -1,2 +1,2 @@
 f7554be1a56cdff468b58fc1c29b95b64864c590038dd309c7a978c7116908f7
-e662212525269cc01c56f36328133b98a7f39f144815c3e6e251bd7832d57f96
+714b2b5653a48a7ce8bc29548488e3ce9dcabb937a61ccbdb000d783c51af5fa

extra/alsa-lib/patches/fix-dlo.patch

@@ -1,26 +1,29 @@
-dlmisc.c:95:7: error: 'snd_plugin_dir_set' undeclared (first use in this function)
-   95 |  if (!snd_plugin_dir_set) {
-      |       ^~~~~~~~~~~~~~~~~~
-dlmisc.c:95:7: note: each undeclared identifier is reported only once for each function it appears in
-dlmisc.c:98:4: error: 'snd_plugin_dir' undeclared (first use in this function)
-   98 |    snd_plugin_dir = strdup(env);
-      |
+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(-)
+
+diff --git a/src/dlmisc.c b/src/dlmisc.c
+index c9517c55..f20eb593 100644
 --- a/src/dlmisc.c
 +++ b/src/dlmisc.c
-@@ -91,6 +91,7 @@
-  */
- int snd_dlpath(char *path, size_t path_len, const char *name)
- {
-+#ifdef DL_ORIGIN_AVAILABLE
- 	snd_dlpath_lock();
- 	if (!snd_plugin_dir_set) {
- 		const char *env = getenv("ALSA_PLUGIN_DIR");
-@@ -104,6 +105,7 @@
- 	snprintf(path, path_len, "%s/%s",
- 		 snd_plugin_dir ? snd_plugin_dir : ALSA_PLUGIN_DIR, name);
- 	snd_dlpath_unlock();
-+#endif
- 	return 0;
- }
+@@ -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;