It's very likely that by now you understood the modification of the Half-Life engine to be compatible with Steam for Linux did not go too well. Several mods such as SvenCoop and Cry of Fear suffered of this, but other developers reported similar problems like KAEPS133 of Soldiers of Honor earlier on MODDB.
I doubt it warrants a lenghty post, as this is mostly an information for those who were waiting for this mod (those who are curious too!) that made good progress in the past few months, but you should expect several goldsrc developers to simply call it a day.
I don't want to drop the project, but to be honest with you I'm at loss of words and really wondering what the hell was Valve thinking about when they decided to turn HL upside down?
All of this reminds me of when they decided to do a major update to HL2 that broke many mods (such as Eclipse, old SMOD) if you remember these dark days.
At any rate we'll see what happens. I sincerely hope the "big" HL1 mods stand up together so we can some hope for HL1 modding.
What do you think?