icetime doesn't recognize new pcf options

[Forty-Bot]

icetime can't parse new pcf options such as -nowarn, -pullup, and -pullup-resistor. It fails with the message:

// Reading input .pcf file..
icetime: icetime.cc:230: void read_pcf(const char*): Assertion `args.size() == 2' failed.

This occurs on Arch Linux with icestorm r684.fa1c932-1

[Arvind-Srinivasan]

From comparing the code that reads the pcf file in icetime.cc to its counterpart in nextpnr, there is some sort of mismatch in what they expect?

[Forty-Bot]

Yes. Both arachne-pnr and nextpnr accept the options -nowarn, --warn-no-port, and -pullup. nextpnr also supports -pullup-resistor. icetime only accepts --warn-no-port.