Ralf Wildenhues wrote: > Elsewhere, flags like AM_LDFLAGS are denoted as global. In that case, > it is meant to say that, unlike program_LDFLAGS, which applies to > 'program' only, the flags apply to all binaries created by this > Makefile.am (that themselves don't have per-target flags which override > the "global" AM_LDFLAGS). Makes sense a bit? IMO global is used incorrectly here because it is just per Makefile. Global initially made me think it really is for all Makefiles.
> Variables are not transported between Makefile files the way you think. > In the above example, the first line is redundant, and AM_CFLAGS will > have the value of "whatever" in this Makefile. In 'somedir', it will > have no particular value unless you set it there. So basically variables are not ever transported between Makefiles. AFAIU setting a variable in configure.in provides this set of variable/value to all Makefiles. And the variable again is NOT globally modifiable since setting the variable in one Makefile is something another makefile will not recognize (thus I'd say upon writing a local copy of every variable is created). > Hope that helps. Thanks, helped a great deal. These concepts were not really obvious to me when reading the documentation.
