build: fix FDELT_TYPE configure check
build: fix FDELT_TYPE configure check

This probably never worked properly. Confirmed working now with every compiler
I throw at it.

Rebased-From: 8021cf8

coinkeeper/2015-06-22_18-37_dogecoin,langerhans/dogecoin,koharjidan/dogecoin,haisee/dogecoin,coinkeeper/2015-06-22_18-37_dogecoin,Exceltior/dogecoin,Domer85/dogecoin,coinkeeper/2015-06-22_18-37_dogecoin,jarymoth/dogecoin,coinkeeper/2015-06-22_18-37_dogecoin,marklai9999/Taiwancoin,koharjidan/dogecoin,marklai9999/Taiwancoin,Exceltior/dogecoin,brishtiteveja/sherlockcoin,brishtiteveja/sherlockcoin,haisee/dogecoin,langerhans/dogecoin,koharjidan/dogecoin,Exceltior/dogecoin,brishtiteveja/sherlockcoin,coinkeeper/2015-06-22_18-37_dogecoin,langerhans/dogecoin,langerhans/dogecoin,Domer85/dogecoin,Exceltior/dogecoin,koharjidan/dogecoin,jarymoth/dogecoin,coinwarp/dogecoin,jarymoth/dogecoin,jarymoth/dogecoin,langerhans/dogecoin,marklai9999/Taiwancoin,brishtiteveja/sherlockcoin,Domer85/dogecoin,koharjidan/dogecoin,langerhans/dogecoin,brishtiteveja/sherlockcoin,haisee/dogecoin,Exceltior/dogecoin,Domer85/dogecoin,haisee/dogecoin,coinwarp/dogecoin,coinwarp/dogecoin,coinwarp/dogecoin,haisee/dogecoin,jarymoth/dogecoin,marklai9999/Taiwancoin,koharjidan/dogecoin,coinwarp/dogecoin