Re: StreamDevice error involving PCRE library in Debian Trixie

[Gerrit Kühn via Tech-talk <tech-talk at aps.anl.gov>]

Am Fri, 10 Apr 2026 13:42:13 +0200
schrieb Gerrit Kühn via Tech-talk <tech-talk at aps.anl.gov>:

After reverting this commit

---
commit 4cdace3ffebd83e6fd1a894afacb415ee74e7b3a
Author: Ralph Lange <ralph.lange at gmx.de>
Date:   Thu Sep 2 14:13:44 2021 +0200

    make "stream" in DBD and other file names explicit
    
    The LIBRARY_* variables may specify *multiple* libraries.
    (So they can't be used as part of file names.)
---


even the latest version (2.8.26) and HEAD of StreamDevice compile just fine.
Likely my configuration is wrong somewhere, but I cannot locate the root
cause.


cu
  Gerrit



> Am Fri, 10 Apr 2026 12:02:50 +0200
> schrieb Torsten Bögershausen <tboegi at edom.se>:
> 
> 
> Hello Thorsten,
> 
> Yes, calc is in my tree under ~/EPICS/epics-support/calc and should be
> properly configured:
> 
> ---
> $ grep CALC ~/EPICS/epics-support/RELEASE.local 
> CALC=$(SUPPORT)/calc
> ---
> 
> I did not touch configure/RELEASE (in favour of RELEASE.local) in
> StreamDevice itself to keep the local setup more tidy.
> As I said, 2.8.20 compiles just fine. If I skip the make clean, I can even
> check out later tags afterwards and let make recompile StreamDevice
> including the changes. So it looks like the .dbd files just don't make it
> to src/O.Common/ for 2.8.21 and later versions.
> 
> There were several changes between 2.8.20 and 2.8.21 concerning
> DBD-handling, handling of includes and handling of calc particularly. I
> will try narrowing down which change actually causes the issue.
> 
> I am not sure what you suggest to comment out.
> 
> 
> cu
>   Gerrit
> 
> 
> 
> > Hej Jörn,
> > 
> > shooting into the blue:
> > Do you have the calc mdoulein your tree ?
> > Is it configured/needed in configure/RELEASE ?
> > Or any other file under configure/ ?
> > 
> > Or somewhere in one of the Makefile(s)?
> > 
> > Where you may be able to comment it out ?
> > 
> > Just guessing.
> > /Torsten
> > 
> > 
> > 
> > On 2026-04-10 10:54, Gerrit Kühn via Tech-talk wrote:  
> > > Am Thu, 9 Apr 2026 05:46:51 +0000
> > > schrieb "Zimoch, Dirk" <dirk.zimoch at psi.ch>:
> > > 
> > > Hello Dirk,
> > > 
> > > Enjoy your vacation!
> > > I just tried to continue with a manual installation of pcre-8.45
> > > instead, and ran into a different issue that maybe soneone else can
> > > shed a light on. Making StreamDevice (recent git checkout) stops with
> > > 
> > > ---
> > > make[2]: Entering directory
> > > '/home/epics/EPICS/epics-support/StreamDevice/src/O.linux-x86_64'
> > > dbdExpand.pl: No input files for ../O.Common/stream.dbd
> > > dbdExpand.pl: No input files for ../O.Common/stream-base.dbd
> > > dbdExpand.pl: No input files for ../O.Common/stream-scalcout.dbd
> > > make[2]: *** No rule to make target 'stream.dbd.d', needed by 'build'.
> > > Stop. ---
> > > 
> > > I just did a bit of surfing through git history and found that this
> > > compiles fine for me up to tag 2.8.20, but breaks with 2.8.21:
> > > 
> > > ---
> > > commit 51e4a0749d3197c1b76b4d38510df18d8ead5359 (tag: 2.8.21)
> > > Author: Ralph Lange <ralph.lange at gmx.de>
> > > Date:   Thu Sep 2 15:54:08 2021 +0200
> > > 
> > >      make "ifdef CALC" also consider SYNAPPS variable
> > >      
> > >      change the ifdefs to the same expression used in CONFIG_STREAM
> > > ---
> > > 
> > > 
> > > However, I fail to see why no dbd files are not found anymore now. Any
> > > hints are as always much appreciated.
> > > 
> > > 
> > > cu
> > >    Gerrit
> > > 
> > > 
> > >     
> > >> Hi Gerrit
> > >>
> > >> I am currently on vacation and cannot test anything.
> > >>
> > >> Dirk
> > >>    
> > >>> Am 09.04.2026 um 01:40 schrieb Gerrit Kühn <gerrit.kuehn at aei.mpg.de>:
> > >>>
> > >>> Am Wed, 18 Mar 2026 21:42:06 +0000
> > >>> schrieb "Zimoch, Dirk via Tech-talk" <tech-talk at aps.anl.gov>:
> > >>>
> > >>> Hello Dirk,
> > >>>
> > >>> Unfortunately, we cannot get your pcre2 branch to compile, it fails
> > >>> with
> > >>>
> > >>> ---
> > >>> -MM -MF StreamEpics.d  ../StreamEpics.cc
> > >>> dbdExpand.pl: No input files for ../O.Common/stream.dbd
> > >>> dbdExpand.pl: No input files for ../O.Common/stream-base.dbd
> > >>> dbdExpand.pl: No input files for ../O.Common/stream-scalcout.dbd
> > >>> make[2]: *** No rule to make target 'stream.dbd.d', needed by
> > >>> 'build'. Stop. make[2]: Leaving directory
> > >>> '/home/epics/EPICS/epics-support/StreamDevice/src/O.linux-x86_64'
> > >>> make[1]: *** [/home/epics/EPICS/epics-base/configure/RULES_ARCHS:58:
> > >>> install.linux-x86_64] Error 2 make[1]: Leaving directory
> > >>> '/home/epics/EPICS/epics-support/StreamDevice/src' make: ***
> > >>> [/home/epics/EPICS/epics-base/configure/RULES_DIRS:85: src.install]
> > >>> Error 2 ---
> > >>>
> > >>> Is there anything obvious we are overlooking? We can get a bit
> > >>> further using https://github.com/daykin/StreamDevice/commits/pcre2
> > >>>
> > >>> However, this only compiles up to base tag R7.0.9, but it will fail
> > >>> with R7.0.10. Is there any recommendation on how to proceed? Is there
> > >>> already an ETA for "official" pcre2 support in StreamDevice?
> > >>> Alternatively, we might also fall back to a manually installed pcre3
> > >>> for the time being.
> > >>>
> > >>>
> > >>> cu
> > >>>   Gerrit
> > >>>
> > >>>
> > >>>        
> > >>>> There is a branch on github where I started with pcre-2 support.
> > >>>> Dirk
> > >>>>
> > >>>> Am 19.03.2026 um 10:25 schrieb Windsor Tanner via Tech-talk
> > >>>> <tech-talk at aps.anl.gov>:
> > >>>>
> > >>>> 
> > >>>>
> > >>>> Hello All,
> > >>>>
> > >>>> My question pertains to getting StreamDevice to build on Debian
> > >>>> Trixie, as device support for EPICS.
> > >>>>
> > >>>> We're running into the following error related to the discrepancy
> > >>>> between the "new"  library packaged in Trixie, and the one which
> > >>>> StreamDevice depends on:
> > >>>>
> > >>>> ../RegexpConverter.cc:31:10: fatal error: pcre.h: No such file or
> > >>>> directory 31 | #include "pcre.h"
> > >>>>
> > >>>>
> > >>>> Does anyone know of a workaround/solution for this, other than
> > >>>> perhaps resorting to the legacy PCRE library? Is there a
> > >>>> configuration setting in the  StreamDevice clone that could be
> > >>>> changed to point to the location of the pcre2.h header in Trixie?
> > >>>>
> > >>>> It seems Debian removed the package (ibpcre3-dev) from Trixie that
> > >>>> would have been compatible with StreamDevice .
> > >>>>
> > >>>> Thanks in advance,
> > >>>>
> > >>>> Windsor    
> >

Attachment: smime.p7s
Description: S/MIME cryptographic signature