Tell people to use --with-modules=... when they use --without-mysql

[jsoref]

closes #5140

Short description

Detect --without-mysql and suggest --with-modules="bind random" --with-dyn-modules="pipe"

Checklist

I have:

• read the CONTRIBUTING.md document
• compiled this code
• tested this code
• included documentation (including possible behaviour changes)
• documented the code
• added or modified regression test(s)
• added or modified unit test(s)

fwiw, this isn't my preference, I'd rather we just remove gmysql from modules when someone uses --without-mysql, but...

$ ./configure --without-mysql --with-libcrypto=/usr/local/opt/openssl 2>&1|tail -5
checking for arc4random... yes
checking whether to enable verbose logging... no
checking whether to enable PKCS11 support... no
checking whether to enable experimental GSS-TSIG support... no
configure: error: instead of --without-mysql try --with-modules="bind random" --with-dyn-modules="pipe"

[pieterlexis]

As discussed on IRC, please make --without-mysql an error condition as we only attempt to find it when we really need it.

[pieterlexis]

👍