[PATCH 02/11] libdl: Fix dlerror non-conformance

[chrisj at rtems.org]

From: Chris Johns <chrisj at rtems.org>

Closes #3298
---
 cpukit/libdl/dlfcn.c | 5 ++++-
 1 file changed, 4 insertions(+), 1 deletion(-)

diff --git a/cpukit/libdl/dlfcn.c b/cpukit/libdl/dlfcn.c
index 1d7164539b..b97078cbaa 100644
--- a/cpukit/libdl/dlfcn.c
+++ b/cpukit/libdl/dlfcn.c
@@ -129,7 +129,10 @@ const char*
 dlerror (void)
 {
   static char msg[64];
-  rtems_rtl_get_error (msg, sizeof (msg));
+  int         eno;
+  eno = rtems_rtl_get_error (msg, sizeof (msg));
+  if (eno == 0)
+    return NULL;
   return msg;
 }
 
-- 
2.19.1