I'm writing a macro to test whether make supports a particular
feature. To do this, I construct a sample Makefile and invoke make on
it. If make returns a non-zero exit code, I know that the test
failed, but I'd also like to save the output to config.log so the user
can try to diagnose the problem.
I didn't see anything in the autoconf docs about this, so I assume
there's currently no supported way to do it. If I missed something,
please point me in the right direction and disregard the rest of this
message. :)
To address this problem, I'd like to see the following two macros
added to autoconf:
AC_LOG(TEXT)
------------
Append TEXT to config.log.
AC_RUN_COMMAND(COMMAND)
-----------------------
1. Run COMMAND, saving stderr to a file.
2. Set a shell variable to the command's exit value so that macro
caller can get it.
2. If exit value is non-zero, append stderr output to config.log.
3. Remove stderr output file.
Looking through the autoconf macro files, it looks like there's
already some stuff that's very similar to my proposed AC_RUN_COMMAND
macro, but it doesn't look like it's really intended to be a
general-purpose macro, and it's also not part of the published
interface. I don't know whether it would be easier to modify the
existing internal macros or just start from scratch, but I guess it
doesn't matter as long as the result is the same. :)
Anyway, I'd appreciate any reactions that anyone has to any of this.
Thanks!
--
Mark D. Roth <[EMAIL PROTECTED]>
http://www.feep.net/~roth/
