Hi,
I would like to know how I should go about specifying AM_CPPFLAGS from
within my configure.ac.
I read Norman Gray and Alexandre Duret-Lutz's discussion from this
mailing list on this topic
(http://www.mail-archive.com/automake@gnu.org/msg10024.html) but could
not understand quite what I was supposed to do.
The library that I'm working on has an "--enable--full-debug" mode, and
I would like to ensure that the compiler spits out all the warnings it
can by specifing CPPFLAGS=-Wall. I have, however, read that setting
CPPFLAGS is a bad thing to do because users should be able to alter that
variable to their hearts content.
I understand that I should instead specify the automake variable
AM_CPPFLAGS. Now from what I could understand from the Norman and
Alex's discussion, it is possible to do this in configure.ac rather than
having to change every single one of the (many) makefiles. It has
something to do with AC_SUBST, but that's where I become lost.
Any help will be very much appreciated. I am _very_ much a newbie to
autoconf/automake and I apologize sincerely if this is a stupid question.
Thank you for your thoughts,
Matthew Walker
