Compile error on clean build on Fedora 26

[Alex Aycinena]

On a new clean clone on a Fedora 26 VM, with the following configure:

../gnucash-clean/configure
--srcdir=/home/gnucash-dev/gitcheckouts/gnucash-clean
--prefix=/opt/gnucash-git/gnucash-clean

I get the following error on make:

In file included from
/home/gnucash-dev/gitcheckouts/gnucash-clean/src/libqof/qof/guid.cpp:25:0:
/home/gnucash-dev/gitcheckouts/gnucash-clean/src/libqof/qof/guid.hpp:52:51:
error: dynamic exception specifications are deprecated in C++11
[-Werror=deprecated]
     static GUID from_string (std::string const &) throw
(guid_syntax_exception);
                                                   ^~~~~
/home/gnucash-dev/gitcheckouts/gnucash-clean/src/libqof/qof/guid.cpp:346:45:
error: dynamic exception specifications are deprecated in C++11
[-Werror=deprecated]
 GUID::from_string (std::string const & str) throw (guid_syntax_exception)
                                             ^~~~~
cc1plus: error: unrecognized command line option ‘-Wno-deprecated-register’
[-Werror]
cc1plus: all warnings being treated as errors
make[5]: *** [Makefile:757: guid.lo] Error 1
make[5]: Leaving directory
'/home/gnucash-dev/gitcheckouts/gnucash-clean-build/src/libqof/qof'

Builds OK on Fedora 25 so osomething must have changed between the two.

Alex