From 2b7630a8f3277a568695fc59996c8bad34261454 Mon Sep 17 00:00:00 2001
From: Carl Worth <cworth@cworth.org>
Date: Wed, 21 Aug 2013 17:32:35 -0700
Subject: [PATCH] Add a more useful error message if dlopen fails
Previously, we were printing only the name of the library that we failed to
open. Now, we also print the underlying cause for the failure, (as reported
by dlerror).
---
glaze-gl.c | 4 +++-
1 file changed, 3 insertions(+), 1 deletion(-)
diff --git a/glaze-gl.c b/glaze-gl.c
index 0c2eada..b6e7d72 100644
--- a/glaze-gl.c
+++ b/glaze-gl.c
@@ -63,9 +63,11 @@ open_wrapper_handle (void)
exit (1);
}
+ dlerror ();
wrapper_handle = dlopen (path, RTLD_LAZY);
if (wrapper_handle == NULL) {
- fprintf (stderr, "Error: Failed to dlopen %s\n", path);
+ const char *error = dlerror();
+ fprintf (stderr, "Error: Failed to dlopen %s: %s\n", path, error);
exit (1);
}
}
--
2.45.2