diff --git a/configure.ac b/configure.ac
index c5786e53a..3cf8abd7c 100644
--- a/configure.ac
+++ b/configure.ac
@@ -27,7 +27,7 @@ AC_PROG_LIBTOOL
 AC_PROG_MAKE_SET
 AC_LANG(C++)
 AC_CONFIG_HEADER(include/ircd/config.h)
-AX_CXX_COMPILE_STDCXX([17], [gnu], [mandatory], 201500)
+AX_CXX_COMPILE_STDCXX([17], [gnu], [mandatory], 201703)
 
 
 dnl ***************************************************************************
@@ -132,30 +132,6 @@ AM_CONDITIONAL([SOLARIS],    [[[[ $host_os = *solaris* ]]]])
 
 RB_DEFINE_UNQUOTED([OS], ["$host_os"], [Host operating system])
 
-dnl
-dnl The CXX standard check even with the sd6 check wasn't enough for GCC. This
-dnl is because we're developing with C++15'ish, which is in some grey area
-dnl between C++14 and C++17 and the implementation differs between GCC 5.x and
-dnl GCC 6.x. The build will b0rk with GCC 5.x so the version must be checked.
-dnl
-
-AC_MSG_CHECKING(whether specific compiler version is sufficient)
-AM_COND_IF([GCC],
-[
-	gvmaj=`$CXX -dumpversion | cut -d"." -f1`
-	gvmin=`$CXX -dumpversion | cut -d"." -f2`
-
-	if [[ "$gvmaj" -ge "6" ]]; then
-		AC_MSG_RESULT([yes])
-	else
-		AC_MSG_RESULT([no])
-		AC_MSG_ERROR([Did you forget to export CXX=g++-6 ?])
-	fi
-], [
-	AC_MSG_RESULT([yes])
-])
-
-
 dnl ***************************************************************************
 dnl
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