diff --git a/freeglut/freeglut/configure.ac b/freeglut/freeglut/configure.ac
index ea77a1a..39b58aa 100644
--- a/freeglut/freeglut/configure.ac
+++ b/freeglut/freeglut/configure.ac
@@ -11,6 +11,7 @@ m4_ifdef([AS_HELP_STRING], [], [AC_DEFUN([AS_HELP_STRING], [AC_HELP_STRING($][@)
 
 # Checks for programs.
 AC_PROG_CC
+AM_PROG_CC_C_O
 AC_C_CONST
 AC_EXEEXT
 AC_LIBTOOL_DLOPEN