Check AX_CXX_COMPILE_STDCXX macro expansion in configure

If not expanded, the user is informed how to deal with this.

autogen.sh

@@ -4,3 +4,34 @@ test -n "$srcdir" || srcdir=.
 
 autoreconf --force --install --verbose --warnings=all "$srcdir"
 patch "$srcdir/ltmain.sh" "$srcdir/ltmain.sh.patch"
+
+# Taken from https://gitlab.com/utsushi/utsushi/blob/master/bootstrap
+#
+# Sanity check the result to catch the most common errors that are
+# not diagnosed by autoreconf itself (or could use some extra help
+# explaining what to do in those cases).
+
+if grep AX_CXX_COMPILE_STDCXX configure >/dev/null 2>&1; then
+    cat <<EOF
+It seems 'aclocal' could not find the autoconf macros used to check
+for C++ standard's compliance.
+
+These macros are available in the 'autoconf-archive'.  If you have
+this archive installed, it is probably installed in a location that
+is not searched by default.  In that case, please note this via:
+
+  `autoconf -t AC_INIT:'$3'`
+
+If you haven't installed the 'autoconf-archive', please do so and
+rerun:
+
+  $0 $*
+
+If the 'autoconf-archive' is not packaged for your operating system,
+you can find the sources at:
+
+  http://www.gnu.org/software/autoconf-archive/
+
+EOF
+    exit 1
+fi