glib-networking build failure

From: Andrea Venturoli <ml_at_netfence.it>
Date: Thu, 21 Apr 2022 14:30:14 UTC
Hello.

Just FIY, net/glib-networking fails to compile if gnutls is built with 
P11KIT option turned off.


> ld: error: undefined symbol: gnutls_pkcs11_init
>>>> referenced by certificate.c
>>>>               tls/tests/certificate-gnutls.p/certificate.c.o:(main)
> 
> ld: error: undefined symbol: gnutls_pkcs11_add_provider
>>>> referenced by certificate.c
>>>>               tls/tests/certificate-gnutls.p/certificate.c.o:(main)
> cc: error: linker command failed with exit code 1 (use -v to see invocation)
> ninja: build stopped: subcommand failed.


Perhaps it should fail more gracefully, checking this before and giving 
a more easily understandable message?

  bye & Thanks
	av.