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<== Date ==> <== Thread ==>

Subject: Re: Seq-2.2.5 compilation on windows
From: Mark Rivers <[email protected]>
To: Benjamin Franksen <[email protected]>, 'Ralph Lange' <[email protected]>, EPICS Tech Talk <[email protected]>
Date: Mon, 22 Jan 2018 14:34:40 +0000
> I think I should update the link in the docs to point at the re2c home page (http://re2c.org/), rather than the (outdated)
> sourceforge page (https://sourceforge.net/projects/re2c/files/).


The problem with that is that the re2c.org site does not provide pre-built Windows binaries, and building it for Windows is non-trivial.  EPICS supports building on Windows with Visual Studio.  But the re2c docs say that only cygwin or mingw are supported.  That means EPICS Windows users would need 2 compilers.  Not only that, but it requires the "configure" utility, which means it needs not only another compiler, but another shell and Linux-like utilities.


A zip file with a single pre-built executable is much simpler.  Note that this is what Andrew Johnson has done for Gnumake (https://epics.anl.gov/download/tools/make-4.1-win64.zip), and it is very convenient.


Note that if one Googles "re2c Windows" the first hit is this page:

http://gnuwin32.sourceforge.net/packages/re2c.htm


That is version 0.9.4, and does not work with the sequencer.  This is probably what Vishnu found and used.   I had to search to find the site with pre-built 0.13.5, which is why I suggested putting a link to it in the seq docs.


Mark




________________________________
From: Benjamin Franksen <[email protected]>
Sent: Monday, January 22, 2018 8:05 AM
To: Mark Rivers; 'Ralph Lange'; EPICS Tech Talk
Subject: Re: Seq-2.2.5 compilation on windows

Hi Mark and Ralph

thanks for the suggestions.

On 01/21/2018 06:07 PM, Mark Rivers wrote:
> I think it would be useful to add the link for the 0.13.5 prebuilt to
> the sequencer documentation.
>
> https://sourceforge.net/projects/re2c/files/old/

Note that the section on prerequisites states:

"""
The minimum version required is 0.9.9, but I recommend using the latest
version that is avaliable for your system.
"""

I have just checked that the sequencer works with the latest release
(1.0.3). I think I should update the link in the docs to point at the
re2c home page (http://re2c.org/), rather than the (outdated)
sourceforge page (https://sourceforge.net/projects/re2c/files/).

Ralph:
> @Ben: is there an easy way to add a check to the SNL build that would
> give a more obvious indication?

I guess so; re2c responds to --version. May need to write some perl code
and see that it gets executed before building snc.

Cheers
Ben
--
"Make it so they have to reboot after every typo." ? Scott Adams


Replies:
RE: Seq-2.2.5 compilation on windows Mark Rivers
Re: Seq-2.2.5 compilation on windows Benjamin Franksen
References:
Re: Seq-2.2.5 compilation on windows Mark Rivers
Re: Seq-2.2.5 compilation on windows Vishnu Patel
Re: Seq-2.2.5 compilation on windows Ralph Lange
RE: Seq-2.2.5 compilation on windows Mark Rivers
Re: Seq-2.2.5 compilation on windows Benjamin Franksen

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