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digitalmars.D.learn - Version Cygwin

reply Anonymouse <asdf asdf.net> writes:
Cygwin is a reserved version[1], alongside Windows and linux and 
the like. However it doesn't seem to be automatically recognised.


 import std.stdio;
 
 void main()
 {
     version(Cygwin) writeln("Cygwin");
 }


Compiled from a Cygwin prompt this prints nothing. So I thought 
to add versions: [ "Cygwin" ] to dub.json, but dub refuses.


 Error: version identifier `Cygwin` is reserved and cannot be set


Is there any way to force Cygwin or should I resign to creating 
an alternative lowercase "cygwin" version?

The use-case is to version stdout.flush() here and there to 
counter that the default Cygwin terminal (mintty) doesn't update 
when text is written to the terminal. I forget the reason why it 
doesn't.


[1]: https://dlang.org/spec/version.htm
Dec 21 2017
parent reply rikki cattermole <rikki cattermole.co.nz> writes:
On 21/12/2017 4:22 PM, Anonymouse wrote:

 Cygwin is a reserved version[1], alongside Windows and linux and the 
 like. However it doesn't seem to be automatically recognised.
 

 import std.stdio;

 void main()
 {
     version(Cygwin) writeln("Cygwin");
 }


 
 Compiled from a Cygwin prompt this prints nothing. So I thought to add 
 versions: [ "Cygwin" ] to dub.json, but dub refuses.
 

 Error: version identifier `Cygwin` is reserved and cannot be set


 
 Is there any way to force Cygwin or should I resign to creating an 
 alternative lowercase "cygwin" version?
 
 The use-case is to version stdout.flush() here and there to counter that 
 the default Cygwin terminal (mintty) doesn't update when text is written 
 to the terminal. I forget the reason why it doesn't.
 
 
 [1]: https://dlang.org/spec/version.htm


You are not using a Cygwin build.
It doesn't matter who calls a process, it doesn't change the version's 
by itself.

As far as I know, nobody supports Cygwin like this.
Dec 21 2017
parent Anonymouse <asdf asdf.net> writes:
On Friday, 22 December 2017 at 03:24:15 UTC, rikki cattermole 
wrote:

 You are not using a Cygwin build.
 It doesn't matter who calls a process, it doesn't change the 
 version's by itself.

 As far as I know, nobody supports Cygwin like this.


I see, thank you.
Dec 22 2017