[Patch] Support for executable extensions (partial; for 2.51 queue)

[Tim Van Holder]

The few changes below allow autoconf to properly find executables
on DOS|Win|OS/2 without depending on special magic.
All it takes is for

  ac_executable_extensions=".exe .com .bat .btm .sh .ksh .pl .sed"

to be added to my config.site.
For full support (scheduled for 2.51, I suppose), autoconf needs
some way to set this variable for itself.  May portions of
config.guess could be duplicated in order to detect those platforms
that need/use executable extensions.


2001-03-29      Tim Van Holder <address@hidden>

        * acgeneral.m4, acspecific: Use $ac_executable_extensions
        when to looking for programs.

exec-exts.diff
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