Re: Question from the RTEMS corner

[Chris Johns via Core-talk <core-talk at aps.anl.gov>]

On 27/8/20 1:49 pm, Michael Davidsaver wrote:
> On 8/26/20 8:31 PM, Johnson, Andrew N. via Core-talk wrote:
>> Hi Chris,
>>
>> On Aug 26, 2020, at 8:21 PM, Chris Johns via Core-talk <core-talk at aps.anl.gov <mailto:core-talk at aps.anl.gov>> wrote:
>>>
>>> Does the EPICS's build system support `make DESTDIR=/somewhere install`?
>>
>> No, we don’t support a separate install step; our build system is unlike most others. You can configure EPICS Base and most other modules (before you start to build them) to install outside of their source tree by setting INSTALL_LOCATION, either on the make command-line or in the configure/CONFIG_SITE file.

OK.

> With Base 7.0.4 INSTALL_LOCATION= can be combined with
> 
>> make LINKER_USE_RPATH=ORIGIN INSTALL_LOCATION=...
> 
> @Chris, if your tools complain about -rpath then use LINKER_USE_RPATH=NO
> and FINAL_LOCATION= and set $LD_LIBRARY_PATH in the environment.
> 
> FINAL_LOCATION being a rough analog of 'configure --prefix=...' in
> this context.  eg.

This is promising.

>> export LD_LIBRARY_PATH==$PWD/lib/$EPICS_HOST_ARCH
>> make LINKER_USE_RPATH=NO FINAL_LOCATION=/usr/local/epics INSTALL_LOCATION=/tmp/staging
> 
> Also maybe of interest to you:
> 
> https://github.com/mdavidsaver/epics-base/blob/spec/epics-base.spec
> 
> There is also Debian packaging.
> 
> https://github.com/epicsdeb/epics-base/blob/master/debian/rules
> 
> https://github.com/epicsdeb/epics-debhelper/blob/master/lib/Debian/Debhelper/Buildsystem/epicsmake.pm
> 

Again thanks.

Chris