diff --git a/test/multi_agent_dlopen/CMakeLists.txt b/test/multi_agent_dlopen/CMakeLists.txt
index 59289d4..1627490 100644
--- a/test/multi_agent_dlopen/CMakeLists.txt
+++ b/test/multi_agent_dlopen/CMakeLists.txt
@@ -1,7 +1,14 @@
+INCLUDE(CheckIncludeFile)
+
+check_include_file(gnu/lib-names.h HAVE_GNU_LIBNAMES_H)
+
 set(CMAKE_C_FLAGS "-g -O -fPIC")
 add_library(multi_agent_sym SHARED dlsym.c)
 add_library(multi_agent_mon SHARED monitor.c)
 add_executable(multi_agent_main main.c)
+if(HAVE_GNU_LIBNAMES_H)
+  target_compile_definitions(multi_agent_main PRIVATE -DHAVE_GNU_LIBNAMES_H)
+endif()
 target_link_libraries(multi_agent_main dl)
 target_link_libraries(multi_agent_mon dl gotcha)
 gotcha_add_test(multi_agent_dlopen multi_agent_main)
diff --git a/test/multi_agent_dlopen/main.c b/test/multi_agent_dlopen/main.c
index 65c9c87..76879a8 100644
--- a/test/multi_agent_dlopen/main.c
+++ b/test/multi_agent_dlopen/main.c
@@ -8,6 +8,14 @@
 #include <math.h>
 #include <stdio.h>
 
+#ifdef HAVE_GNU_LIBNAMES_H
+#include <gnu/lib-names.h>
+#endif
+
+#ifndef LIBM_SO
+#define LIBM_SO "libm.so"
+#endif
+
 #define MYNAME  "main"
 
 typedef double sin_fcn_t(double);
@@ -21,7 +29,7 @@ main(int argc, char **argv)
 
     fprintf(stderr, "%s:  val = %.6f\n", MYNAME, val);
 
-    void *handle = dlopen("libm.so", RTLD_NOW);
+    void *handle = dlopen(LIBM_SO, RTLD_NOW);
     if (handle == NULL) {
 	err(1, "dlopen failed");
     }