Re: #! magic for finding Cygwin Tcl shell

[Gary Thomas <gary at mlbassoc dot com>]

Jonathan Larmour wrote:
> John Dallaway wrote:
>> I was looking at support for UNC file paths in the eCos Configuration
>> Tool today. The convoluted #! magic we use in our Tcl scripts to find a
>> Cygwin Tcl shell is getting in the way when calling (eg) heapgen.tcl via
>> a UNC repository path. This code is only needed to support installations
>> of Cygwin that are more than 5 years old.
>>
>> Rather than increase the complexity of the #! magic still further, I
>> think it now makes sense to revert to a simple "#! /usr/bin/tclsh"
>> within our Tcl scripts. However, this would break compatibility with old
>> Cygwin installations providing only tclsh8*.exe or cygtclsh80.exe.
>>
>> Any objections?
> 
> Yes, it may not be in /usr/bin. I don't mind the cygwin-specific cygpath
> bits being dropped, but I'd still want it to be found from the PATH by some
> means.

Does CygWin have '/usr/bin/env'?  This is the "modern" way
to handle this:

 #! /usr/bin/env tclsh
 ...


-- 
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Gary Thomas                 |  Consulting for the
MLB Associates              |    Embedded world
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