Experimental Physics and
Industrial Control System

"Mark Rivers" <[email protected]> · Tue, 28 Feb 2006 12:35:06 -0600

Andrew,

I believe I used WinZip to extract the archive, rather than tar.

I don't think I like your proposed solution for the following reasons:

- EPICS is supposed to build for multiple architectures from the same
source tree.  If I use WinZip to extract EPICS base it builds fine for
WIN32.  However, if I later decide I also want to build for Cygwin, I
can't use that same source tree.

- Even if I untar the source file with Cygwin tar, if I then use a
Windows text editor, such as Wordpad, to edit any .l file (in base or in
any application), e_flex fails.

- Most, if not all, other EPICS code that reads ASCII files (.adl files,
.db files, .dbd files, etc.) are now tolerant of either type of line
terminator.  e_flex seems to be the exception.

Mark

> -----Original Message-----
> From: Andrew Johnson [mailto:[email protected]] 
> Sent: Tuesday, February 28, 2006 11:25 AM
> To: Mark Rivers
> Cc: [email protected]
> Subject: Re: Problem with e_flex in base
> 
> Hi Mark,
> 
> Mark Rivers wrote:
> > 
> > I have found a problem with e_flex in base (3.14.8.2).  It does not
> > handle .l files that have DOS terminators, which is what happens if
> > one un-tars EPICS base on a Cygwin system and tries to build it.
> 
> What program did you use to extract everything out of the tar file?
> 
> If you're going to build EPICS using Cygwin, you should use 
> the Cygwin 
> version of tar to do that extraction, which will only convert 
> the Unix 
> line endings into DOS ones if your Cygwin installation is 
> configured to 
> use DOS line endings.  In that configuration, the Cygwin C runtime 
> library automatically does the right thing with line endings 
> and e_flex 
> should work properly without any changes.
> 
> > Would it be possible to fix e_flex so this does not happen?
> 
> I have developed a fix, but I'm reluctant to commit it since 
> I believe 
> the problem was really due to operator error.
> 
> Is this reasonable?
> 
> - Andrew
> -- 
> There is no S in exprexxo.
> 

Experimental Physics and Industrial Control System

Experimental Physics and
Industrial Control System