https://bugs.gentoo.org/724412
--- a/configure.ac
+++ b/configure.ac
@@ -18,6 +18,7 @@ AC_PROG_CPP
 AC_PROG_CXX
 AC_PROG_INSTALL
 AC_PROG_RANLIB
+AM_PROG_AR
 
 dnl Some needed libaries for OS2
 dnl perharps join this with the other target depended checks. move them upwards