tree d77e87241e7edff0920340269a13017489a9629e
parent 007400c8072a97c367a6e492292f57d5d1cd5ba8
author William A. Kennington III <wak@google.com> 1539901363 -0700
committer William A. Kennington III <wak@google.com> 1539901369 -0700

configure: Use generic CXX compiler macro

This uses the AX_CXX_COMPILE_STDCXX() instead of
AX_CXX_COMPILE_STDCXX_1{4,7}() so that the error messages we generate
make slightly more sense.

We get errors like:
configure.ac:24: error: invalid first argument `20' to
AX_CXX_COMPILE_STDCXX

Instead of:
./configure: line 5132: syntax error near unexpected token `noext'
./configure: line 5132: `AX_CXX_COMPILE_STDCXX_20(noext)'

Change-Id: I05512c977b8b3215a02b5d4dc6dba30ac2b83728
Signed-off-by: William A. Kennington III <wak@google.com>