Installing mapnik and linking to a custom, self-compiled proj.4 library I manually compiled proj.4 from downloaded source code. I edited the Homebrew formula for mapnik2 (couldn’t get it to work with mapnik 3) so that it would link the version of proj.4 I just compiled by setting the location of these libraries to where proj.4 make install puts them and not where Homebrew expects them: "PROJ_INCLUDES=/usr/local/proj/include", "PROJ_LIBS=/usr/local/proj/lib", Then I compiled and installed ma...