Compile-time detection of EOL translation mode (CLISP)

Reini Urban rurban@x-ray.at
Sun Jan 28 02:44:00 GMT 2007


Aaron Brown schrieb:
> Reini Urban wrote:
> 
>> Confirmed.
>> Bug patched at 
>> http://sourceforge.net/tracker/index.php?func=detail&aid=1633552&group_id=1355&atid=101355 
>>
> 
> It's been moved to <http://tinyurl.com/3b3yux> with the
> following comment from Sam Steingold:
> 
>> This patch does not seem right.
>> on linux O_BINARY==0 and I see no reason to default line
>> termination to :DOS there.
>> I am rejecting it pending your convincing me that I am
>> wrong here.
> 
> To be honest, it didn't seem quite right to me either, but I
> figured that was down to me not knowing the ins and outs of
> how Cygwin handles text modes.
> 
> The original logic was:
> 
>> #if defined(WIN32) || (defined(UNIX) && (O_BINARY != 0))
>>  pushSTACK(S(Kdos));           /* :line-terminator */
>> #else
>>  pushSTACK(S(Kunix));          /* :line-terminator */
> 
> which translates to "if O_BINARY is something other than 0,
> then this unix must differentiate between text and binary
> streams, so assume that text streams use dos EOLs".  That
> makes sense, except that O_BINARY is nonzero even on (for
> instance) my Cygwin installation, where I selected unix EOLs
> as the default with setup.exe.
> 
> The patch changes the condition to:
> 
>> #if defined(WIN32) || (defined(UNIX) && (O_BINARY == 0))
> 
> which, as Sam pointed out, would make most unixes (on which
> O_BINARY is 0) use dos EOLs.

I tought the UNIX O_BINARY logic was only for CYGWIN and wondered what 
other UNIX that could be.
Ok, so we'll have to use
#if defined(WIN32) || \
   (defined(UNIX) && (O_BINARY != 0) && !defined(__CYGWIN__))

or make the call slower by doing a dynamic textmount check.
But I really don't want to do that.
-- 
Reini Urban
http://phpwiki.org/  http://murbreak.at/
http://helsinki.at/  http://spacemovie.mur.at/

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