Hi Erik,
I've found a middleground for the problem of setting default CFLAGS. I've gone
back
to setting them if {C,CXX,CPP,LD}FLAGS are unset at the onset of the configure
script
(i.e., the user hasn't specified anything) and then proceed to set them to the
defaults
as before. This has been suggested before:
https://lists.gnu.org/archive/html/autoconf/2006-04/msg00022.html
In addition, I've added a small compile snippet to check whether
_FORTIFY_SOURCE is
defined, and if so, do not add it to CPPFLAGS. This is mainly due to the fact
that
Gentoo's GCC has _FORTIFY_SOURCE always enabled, which causes a ton of
superfluous
redefinition warnings when adding this flag to CPPFLAGS.
Finally, I forgot to add one patch from our repo, namely that noinst_ is the
wrong
prefix for test programs. These should be prefixed with check_, which causes
them only
to be compiled when 'make check' is run, making the overall build faster.
Regards
David
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