Re: abort while installing perl in Tru64

Hi,

I don't really know much about Configure scripts, but it looks to me that Configure tests for the compiler by running:

$cc -o try $ccflags $ldflags try.c
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If that fails, then Configure concludes that a C compiler is not available.

However, a failure could conceivably arise for other reasons - perhaps try.c is not a valid C file, or perhaps one (or more) of $cc, $ccflags and $ldflags has not been set appropriately and is screwing up the works.

What does try.c contain ? I think it ought to be:

int main(int argc, char *argv[]) {
  return 0;
}
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Can you successfully run 'cc -o try try.c' ? (I'm assuming that try.c did not cleaned up when Configure aborted.)

Cheers,
Rob

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Re^2: abort while installing perl in Tru64 by xiaoyafeng (Deacon) on Oct 23, 2007 at 09:29 UTC
Thanks! Yes, I can! Although I can't find try.c in perl install directory, I note below command in Configure: `cat <<'EOSC' >>trygcc case "$cc" in '') ;; ) $rm -f try try. $cat >try.c <<EOM int main(int argc, char *argv[]) { return 0; } EOM if $cc -o try $ccflags $ldflags try.c; then : else echo "Uh-oh, the C compiler '$cc' doesn't seem to be working." + >&4` [download] So I create a new try.cc and run cc -o try try.c successfully. It seem $cc, $ccflags and $ldflags has not been set appropriately. uh? How can I do next? I am trying to improve my English skills, if you see a mistake please feel free to reply or /msg me a correction	[reply] [d/l]
Re^3: abort while installing perl in Tru64 by syphilis (Archbishop) on Oct 23, 2007 at 09:48 UTC
.. I can't find try.c in perl install directory Aaah ... I believe it should still be there. Perhaps there's some problem with "write" permissions in that build directory. I just tried running `sh Configure -des -Dcc=crap` and the process (as expected) died with the same message as you got. But `try.c` was still there !! I also got a message `Configure: line 10: crap: command not found` but you didn't get any message about `cc` not being found. I'm becoming more and more convinced that your problem is not that `cc` can't be found, but that `try.c` can't be created. Cheers, Rob	[reply] [d/l] [select]