bug#14707: automake 1.14 test hang for t/compile4.sh on Linux if "cl" executable is in path

[Diab Jerius]

Hi,

On the Linux boxes I compile on, there's a /usr/local/bin/cl executable
(from the IRAF package).  Unfortunately, it seems that t/compile4.sh
interprets that as a Microsoft compiler.

The IRAF cl is an interactive program, so compile4.sh invokes it and it
hangs waiting for input.

Is there perhaps a better way of checking for the Microsoft compiler, or
restricting these tests to Microsoft operating systems?

Thanks,

Diab