https://bugs.gentoo.org/815700

--- a/configure.ac
+++ b/configure.ac
@@ -22,7 +22,6 @@ AC_PROG_CC
 AC_PROG_CXX
 AX_PROG_CC_FOR_BUILD
 
-AX_CC_MAXOPT
 AX_GCC_WARN_UNUSED_RESULT
 AX_C___ATTRIBUTE__
 
--