diff --git a/configure.ac b/configure.ac
index 2ce049c58219..16aa667af78a 100644
--- a/configure.ac
+++ b/configure.ac
@@ -55,6 +55,9 @@ AM_PROG_AS
 AM_PROG_CC_C_O
 AX_CODE_COVERAGE
 _AM_PROG_TAR(pax)
+AC_PROG_CXX
+AC_PROG_OBJC
+AC_PROG_OBJCXX
 
 ZFS_AC_LICENSE
 ZFS_AC_CONFIG