diff --git a/configure.ac b/configure.ac
index 7a5f5afbc6e9a21a2bc25b6946464caa3060e641..c50fd3924fddd4b65dee680b2d197614260130c9 100644
--- a/configure.ac
+++ b/configure.ac
@@ -118,6 +118,8 @@ case "$build_os" in
 ;;
 esac
 
+AC_CHECK_LIB(dl, main) 
+
 gltools_include=
 LIBGLTOOLS_PRESENT=
 AC_MSG_CHECKING([for libgltools.a])