Re: How do I install to $prefix/EPICS/bin, $prefix/EPICS/lib etc.?

[David Dudley <ddudley@bnl.gov>]

Andrew,

Sorry for the discouraging remark, but setting "INSTALL_LOCATION" didn't
work for me, when I built things for Darwin.

In order to successfully complete the build, I had to create symlinks to the
installed location for the 'bin', 'configure', and 'include' directories.

David Dudley


On 8/5/10 3:06 PM, "Andrew Johnson" <anj@aps.anl.gov> wrote:

> Hi Gary,
> 
> On Thursday 05 August 2010 13:14:04 Gary V. Vaughan wrote:
>> 
>> I am in the process of trying to package EPICS base 3.14.11 into
>> native package format on several commercial UNICES, but I can't
>> find a nice way to have it install into a standard tree:
> 
> The EPICS build system isn't going to work with the standard tree that you've
> suggested.  EPICS was designed around the ability to cross-compile for other
> architectures, which is why we install binaries and libraries into an
> architecture-specific subdirectory of <top>/bin and <top>/lib respectively.
> How/where are you going to store the EPICS Base libraries cross-compiled for
> an RTEMS or vxWorks target?  The majority of EPICS sites need to do cross-
> builds like that, and your solution is likely to be less interesting to them
> if you prevent that by changing the installation structure.
> 
>> If I change INSTALL_LOCATION to be anything other than $(TOP)
>> then make fails to find any sources to link, and there don't
>> appear to be any installation rules to relink the libraries
>> and binaries at install time -- nearly all other programs I've
>> packaged provide a 'make install' rule for this purpose.
> 
>> Is there a way to install a runtime EPICS base into the root
>> directory using the existing build system?
> 
> You should be able to set INSTALL_LOCATION inside the configure/CONFIG_SITE
> file before you build base, pointing it to the top directory where you want it
> to make the install tree.  This will ensure that the RPATH entries point to
> the installation tree.  I'm guessing that it might not be possible to set it
> to "/" if that's something that you're having problems with, although I'm not
> sure why it would break.  Note that this also causes the configure directory
> to be copied to $(INSTALL_LOCATION); it's needed by application developers to
> build IOCs against this installation of Base.
> 
> If you want to remove the RPATH entries you're probably better off editing the
> configure/os/CONFIG files to remove the options, although you may find you
> have to set /etc/ld.so.conf so our build tools like flex and antelope are able
> to run.  I believe we've added an option to future releases to allow RPATH to
> be turned off centrally.
> 
> - Andrew