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<== Date ==> <== Thread ==>
Subject: RE: Multiple OS Build
From: Mark Rivers <[email protected]>
To: "'Hugo Slepicka'" <[email protected]>, "[email protected]" <[email protected]>
Date: Mon, 9 Jan 2017 17:44:31 +0000

Hi Hugo,

 

I have done this by just using a few new files and soft links in base/configure/os.

 

So in addition to linux-x86 and linux-x86_64 I am building for 3 additional Linux architectures which I call linux-x86_64-gcc42, linux-x86-gcc43, and linux-x86_64-rhel6

 

lrwxrwxrwx 1 epics epics 26 Dec  9  2015 CONFIG.Common.linux-x86_64-rhel6 -> CONFIG.Common.linux-x86_64

lrwxrwxrwx 1 epics epics 26 Dec  9  2015 CONFIG.linux-x86_64-rhel6.Common -> CONFIG.linux-x86_64.Common

lrwxrwxrwx 1 epics epics 32 Dec  9  2015 CONFIG.linux-x86_64-rhel6.linux-x86_64-rhel6 -> CONFIG.linux-x86_64.linux-x86_64

lrwxrwxrwx 1 epics epics   23 May  7  2015 CONFIG.Common.linux-x86-gcc43 -> CONFIG.Common.linux-x86

lrwxrwxrwx 1 epics epics   26 May  6  2015 CONFIG.Common.linux-x86_64-gcc42 -> CONFIG.Common.linux-x86_64

lrwxrwxrwx 1 epics epics   23 May  7  2015 CONFIG.linux-x86-gcc43.Common -> CONFIG.linux-x86.Common

lrwxrwxrwx 1 epics epics   26 May  7  2015 CONFIG.linux-x86-gcc43.linux-x86-gcc43 -> CONFIG.linux-x86.linux-x86

lrwxrwxrwx 1 epics epics   26 May  6  2015 CONFIG.linux-x86_64-gcc42.Common -> CONFIG.linux-x86_64.Common

lrwxrwxrwx 1 epics epics   32 May  6  2015 CONFIG.linux-x86_64-gcc42.linux-x86_64-gcc42 -> CONFIG.linux-x86_64.linux-x86_64

-rw-r--r-- 1 epics epics 1828 May  7  2015 CONFIG_SITE.Common.linux-x86-gcc43

-rw-r--r-- 1 epics epics 1833 May  6  2015 CONFIG_SITE.Common.linux-x86_64-gcc42

 

For files which need to be different from the distribution files I create new files, while for those that just need a different name I use soft links.

 

In my case those additional architectures are on different computers that all share the same file system.  I just change the login files on those computers to define EPICS_HOST_ARCH as appropriate.

 

Mark

 

 

From: [email protected] [mailto:[email protected]] On Behalf Of Hugo Slepicka
Sent: Monday, January 09, 2017 11:37 AM
To: [email protected]
Subject: Multiple OS Build

 

Hi All,

I would like some input from the community regarding the organization of EPICS build for multiple OS targets (not cross-compiling), e.g. RHEL (5, 6, 7), Debian and other flavors available to coexist in a shared directory structure.

 

How is the community handling cases similar to rhel7-x86_64 versus rhel6-x86_64 given that "EPICS_HOST_ARCH" returns "linux-x86_64" for both?

One possible solutions would be to use something like:

       <shared_path>/<os_version>/base/.../<EPICS_HOST_ARCH>/...

       - where os_version would be: rhel5, rhel6, deb7, deb8, etc.


Another solution would be to apply a local patch to the EPICS building system to return a specific value for EPICS_HOST_ARCH including the <os_version>, e.g. rhel6-x86_64, resulting in something like this:
       <shared_path>/base/.../<NEW_EPICS_HOST_ARCH>/...

 

 

Thanks,

Hugo

 

References:
Multiple OS Build Hugo Slepicka
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