build: Improve detection of dlopen(3) in libdl

1 files changed, 4 insertions, 1 deletions

diff --git a/configure b/configure
index 29ecaa76..9efa1638 100755
--- a/configure
+++ b/configure
@@ -1506,7 +1506,10 @@ if [ "$DEV" = yes ]; then
 #include <dlfcn.h>
 #include <stdlib.h>
 int main(void) {
-	dlopen(NULL, 0);
+	void *h = dlopen("/foo/bar", 0);
+	void (*s)(char *) = dlsym(h, "deadbeef");
+	s(dlerror());
+	dlclose(h);
 	return 0;
 }
 EOF