Thanks Bob and Ralf. Here's one that's just a little more complex (the last one, I promise).
I have this in my Makefile.am: registrarTest_SOURCES = registrar.c\ @top_srcdir@/common/mySleep.c registrarTest_CPPFLAGS = -DREGISTRAR_TEST\ -I$(top_srcdir)/common This question is somewhat related to the last one I asked. Where should I use @top_srcdir@, and where should I use $(top_srcdir)? registrarTest_SOURCES will be used in a make dependency list, and that registrarTest_CPPFLAGS will be used on a compiler command line. Does this make a difference? I don't think make cares whether there are make variables in either targets or dependency lists, but... I'll tell you what. I'm looking over some code that I wrote a long time ago, and now I know a lot more about what I'm doing with Autotools than I used to. I probably copied this stuff from someone else's project without understanding it. Now I understand what it's doing, and it just opens up more questions. :) Regards, John