Downloading of fpcsrc-3.0.0-20151207-macosx.dmg, from sourceforge's lazarus 1.6.2 set of files, actually delivers fpcsrc-2.6.4, so Lazarus can't find the required source files, as it finds 2.6.4 in the place where 3.0.0 should be found. After installing the pkg I was unable to find a folder for fpcsrc-3.0.0 anywhere.
I am able to compile pascal programs from the terminal and the compiler signs itself as 3.0.0, so the fpc compiler pkg was correct.
I have been using free pascal and lazarus for several years, so I am more or less familiar with the update process, but never had this problem before.
Is there an alternate location from which I can download the proper fpcsrc?