--- deliantra/server/configure.ac	2016/11/23 06:05:38	1.193
+++ deliantra/server/configure.ac	2018/11/22 20:13:33	1.194
@@ -92,7 +92,7 @@
 AC_PROG_CXX
 AC_PROG_CPP
 
-AX_CXX_COMPILE_STDCXX_11([noext], [mandatory])
+AX_CXX_COMPILE_STDCXX(14, [noext], [mandatory])
 
 AX_CHECK_COMPILE_FLAG(-Wno-unused-result,[CXXFLAGS="$CXXFLAGS -Wno-unused-result"])
 AX_CHECK_COMPILE_FLAG(-Wno-narrowing,[CXXFLAGS="$CXXFLAGS -Wno-narrowing"])