Hello, trying to set up CalendarServer-4.2 resulted in : # Download and Start cd calendar CalendarServer$ svn checkout https://svn.calendarserver.org/repository/calendarserver/CalendarServer/tags... CalendarServer cd CalendarServer sudo ./run -s . . # 1st errors . gcc -O2 -Wall -Wmissing-prototypes -Wpointer-arith -Wdeclaration-after-statement -Wendif-labels -Wformat-security -fno-strict-aliasing -fwrapv pg_dumpall.o dumputils.o keywords.o kwlookup.o -L../../../src/port -lpgport -L../../../src/interfaces/libpq -lpq -L../../../src/port -L/Users/erwinzilg/calendar/postgresql-9.1.2/_root/lib -Wl,-dead_strip_dylibs -lpgport -lz -lreadline -lm -o pg_dumpall ld: warning: directory not found for option '-L/Users/erwinzilg/calendar/postgresql-9.1.2/_root/lib' ld: warning: directory not found for option '-L/Users/erwinzilg/calendar/postgresql-9.1.2/_root/lib' ld: warning: directory not found for option '-L/Users/erwinzilg/calendar/postgresql-9.1.2/_root/lib' /Applications/Xcode.app/Contents/Developer/usr/bin/make -C pl all . . # final stop . gcc -O2 -Wall -Wmissing-prototypes -Wpointer-arith -Wdeclaration-after-statement -Wendif-labels -Wformat-security -fno-strict-aliasing -fwrapv -bundle -multiply_defined suppress -o plpython2.so plpython.o -L../../../src/port -L/Users/erwinzilg/calendar/postgresql-9.1.2/_root/lib -Wl,-dead_strip_dylibs -framework Python -bundle_loader ../../../src/backend/postgres ld: warning: directory not found for option '-L/Users/erwinzilg/calendar/postgresql-9.1.2/_root/lib' ld: framework not found Python clang: error: linker command failed with exit code 1 (use -v to see invocation) make[3]: *** [plpython2.so] Error 1 make[2]: *** [all-plpython-recurse] Error 2 make[2]: *** Waiting for unfinished jobs.... gcc -O2 -Wall -Wmissing-prototypes -Wpointer-arith -Wdeclaration-after-statement -Wendif-labels -Wformat-security -fno-strict-aliasing -fwrapv -bundle -multiply_defined suppress -o plpgsql.so pl_gram.o pl_handler.o pl_comp.o pl_exec.o pl_funcs.o pl_scanner.o -L../../../../src/port -L/Users/erwinzilg/calendar/postgresql-9.1.2/_root/lib -Wl,-dead_strip_dylibs -bundle_loader ../../../../src/backend/postgres ld: warning: directory not found for option '-L/Users/erwinzilg/calendar/postgresql-9.1.2/_root/lib' make[1]: *** [all-pl-recurse] Error 2 make: *** [all-src-recurse] Error 2 NO other changes were made on my side. Please advise on how to install without error Best regards Erwin