"Theodore C. Belding" wrote:
> 
> AC_CHECK_HEADERS(expect.h)
> 
> I have expect installed, and the program compiles without problems, but
> the header check fails when I run configure. The relevant lines from
> config.log are:
> 
> /usr/include/tcl.h:221: warning: `EXTERN' redefined

The tests are very dumb: any output is considered an error message.  You have a
warning here, but configure treats it as an error :(

The fix would be to correct the header file (conditionally define EXTERN),
and submit the patch to the header maintainer.

--
Andrew E. Mileski - Software Engineer
REBEL.COM  http://www.rebel.com/

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