If argp is unavailable we cannot build tests, tools and argp-std.c in
libdwfl. We can still build the libraries, though. Test for this and
provide a dwfl_standard_argp() that just returns NULL and only gets
compiled if argp is missing.
Signed-off-by: Ulf Hermann
---
ChangeLog| 12 +++
If argp is missing we build without tools and tests. We might also
make libasm optional in the future, as it is only used in maintainer
mode. A libelf-only build without libdw and the ebl backends is also
feasible.
The user should be notified about what is actually buildable with a
given configura
