In file included from /Users/dave/src/MacPorts-2.3.3/vendor/tcl8.5.15/unix/../generic/regcomp.c:33: In file included from /Users/dave/src/MacPorts-2.3.3/vendor/tcl8.5.15/unix/../generic/regguts.h:36: In file included from /Users/dave/src/MacPorts-2.3.3/vendor/tcl8.5.15/unix/../generic/regcustom.h:33: In file included from /Users/dave/src/MacPorts-2.3.3/vendor/tcl8.5.15/unix/../generic/tclInt.h:36: In file included from /Users/dave/src/MacPorts-2.3.3/vendor/tcl8.5.15/unix/../generic/tclPort.h:23: ./tclUnixPort.h:637:15: fatal error: 'pthread_np.h' file not found # include ^ 1 error generated. make[2]: *** [regcomp.o] Error 1 make[1]: *** [all-tcl] Error 2 Mk/macports.subdir.mk:9: recipe for target 'all' failed make: *** [all] Error 1