[postgis-users] PostGIS 2.x on NixOS

[adam at gamb.co]

I'm trying to build PostGIS 2.1.5 on NixOS. Build fails because of 'gcc: 
error: ../liblwgeom/.libs/liblwgeom.a: No such file or directory' (full 
log here: http://pastebin.com/F4DPJezY).

Can any PostGIS experts advise what configurations I should investigate?

Thanks,

Adam