From 964d59c56e245b9c1cf53a73af87b2834c2c5ad8 Mon Sep 17 00:00:00 2001
From: Anthony Minessale <anthm@freeswitch.org>
Date: Wed, 21 Apr 2010 09:53:26 -0500
Subject: [PATCH] proper checking for dlerror on failed dso load

---
 src/switch_dso.c | 11 ++++++++++-
 1 file changed, 10 insertions(+), 1 deletion(-)

diff --git a/src/switch_dso.c b/src/switch_dso.c
index 6fc5c7b86c..152c280d5d 100644
--- a/src/switch_dso.c
+++ b/src/switch_dso.c
@@ -127,7 +127,16 @@ void *switch_dso_data_sym(switch_dso_lib_t lib, const char *sym, char **err)
 {
 	void *addr = dlsym(lib, sym);
 	if (!addr) {
-		*err = strdup(dlerror());
+		char *err_str = NULL;
+		dlerror();
+
+		if (!(addr = dlsym(lib, sym))) {
+			err_str = dlerror();
+		}
+
+		if (err_str) {
+			*err = strdup(err_str);
+		}
 	}
 	return addr;
 }