slack7.1, bb 0.61.1, signal.h

[Sebastian Kwiatkowski]

Hello,
I'm trying to build the latest Blackbox version on Slackware 7.1.

checking for (sys/)signal.h ... (cached) not found
param.h is also not found.

Do you guys think that's why i get such compiling errors?
BaseDisplay.cc: 240: type 'sigaction' is not yet defined

or what's wrong?

Best regards
  Sebastian