Did you installed :

gnustep-make 
      gnustep-base-runtime 
      libgnustep-base-dev 

?

libgnustep-base-dev was missing, thanks. Would it be possible to improve the guide for compilation to not just say "install GNUstep", but be more specific? Because I don't see any way to tell from the error messages that this package is missing.

Also a more specific guide may be able to prevent the next issue I now face with compiling sogo. For make I get a very long output ending in

Compiling file MSExchangeFreeBusy.m ...
gcc -shared \
-Wl,--no-as-needed -lcurl -shared-libgcc -pthread -fexceptions -rdynamic -o Appointments.SOGo/./Appointments \
./obj/Appointments.obj/Product.m.o ./obj/Appointments.obj/NSArray+Appointments.m.o ./obj/Appointments.obj/iCalAlarm+SOGo.m.o ./obj/Appointments.obj/iCalCalendar+SOGo.m.o ./obj/Appointments.obj/iCalEntityObject+SOGo.m.o ./obj/Appointments.obj/iCalRepeatableEntityObject+SOGo.m.o ./obj/Appointments.obj/iCalEvent+SOGo.m.o ./obj/Appointments.obj/iCalEventChanges+SOGo.m.o ./obj/Appointments.obj/iCalPerson+SOGo.m.o ./obj/Appointments.obj/iCalToDo+SOGo.m.o ./obj/Appointments.obj/SOGoCalendarComponent.m.o ./obj/Appointments.obj/SOGoAppointmentObject.m.o ./obj/Appointments.obj/SOGoTaskObject.m.o ./obj/Appointments.obj/SOGoComponentOccurence.m.o ./obj/Appointments.obj/SOGoAppointmentOccurence.m.o ./obj/Appointments.obj/SOGoTaskOccurence.m.o ./obj/Appointments.obj/SOGoAppointmentFolder.m.o ./obj/Appointments.obj/SOGoAppointmentFolderICS.m.o ./obj/Appointments.obj/SOGoAppointmentFolderObject.m.o ./obj/Appointments.obj/SOGoAppointmentFolderXML.m.o ./obj/Appointments.obj/SOGoAppointmentInboxFolder.m.o ./obj/Appointments.obj/SOGoWebAppointmentFolder.m.o ./obj/Appointments.obj/SOGoAppointmentFolders.m.o ./obj/Appointments.obj/SOGoFreeBusyObject.m.o ./obj/Appointments.obj/SOGoUser+Appointments.m.o ./obj/Appointments.obj/SOGoUserFolder+Appointments.m.o ./obj/Appointments.obj/SOGoCalendarProxy.m.o ./obj/Appointments.obj/SOGoAptMailNotification.m.o ./obj/Appointments.obj/SOGoAptMailInvitation.m.o ./obj/Appointments.obj/SOGoAptMailDeletion.m.o ./obj/Appointments.obj/SOGoAptMailICalReply.m.o ./obj/Appointments.obj/SOGoAptMailUpdate.m.o ./obj/Appointments.obj/SOGoAptMailReceipt.m.o ./obj/Appointments.obj/SOGoAptMailReminder.m.o ./obj/Appointments.obj/SOGoEMailAlarmsManager.m.o ./obj/Appointments.obj/MSExchangeFreeBusySOAPRequest.m.o ./obj/Appointments.obj/MSExchangeFreeBusy.m.o \
-L../SOGo/SOGo.framework/Versions/Current/sogo/ -lSOGo -L../../SOGo/./obj/ -L../../SOPE/NGCards/./obj/ -lNGCards -L../../SOPE/GDLContentStore/./obj/ -lGDLContentStore -L/usr/local/lib -Wl,-rpath,/usr/lib/sogo -L../../SOPE/GDLContentStore/obj/ -L/root/GNUstep/Library/Libraries -L/usr/local/lib -L/usr/lib -lNGObjWeb -lNGMime -lNGStreams -lNGExtensions -lGDLAccess -lNGObjWeb -lNGMime -lNGLdap -lNGStreams -lNGExtensions -lEOControl -lDOM -lSaxObjC -lSBJson -lgnustep-base -lobjc -lm
/usr/bin/ld: cannot find -lSOGo: No such file or directory
collect2: error: ld returned 1 exit status
make[3]: [/usr/share/GNUstep/Makefiles/wobundle.make:173: Appointments.SOGo/./Appointments] Error 1
make[2]: [/usr/share/GNUstep/Makefiles/Master/rules.make:297: Appointments.all.wobundle.variables] Error 2
make[1]: [/usr/share/GNUstep/Makefiles/Master/serial-subdirectories.make:53: internal-all] Error 2
make: [/usr/share/GNUstep/Makefiles/Master/serial-subdirectories.make:53: internal-all] Error 2

I'm currently trying to compile 5.11 which still fails with the same error. Something weird I found was the content of SoObjects/SOGo/SOGo.framework/Versions/Current/sogo/. It's a symlink called SOGo pointing at libSOGo.so, which doesn't exist:
ls -la SoObjects/SOGo/SOGo.framework/Versions/Current/sogo/
total 8,0K
drwxr-xr-x 2 root root 4,0K 19. Aug 10:07 .
drwxr-xr-x 5 root root 4,0K 19. Aug 10:07 ..
lrwxrwxrwx 1 root root 10 19. Aug 10:07 SOGo -> libSOGo.so

Is it possible that this is confusing gcc? ld is clearly trying to find some SOGo library that doesn't exist (yet). So what is tripping up its creation?

What is the debian version (still 12) ?
Can you try tu run ldconfig before compiling ?

Yes, still stable. Running ldconfig has no output and no change in the result.

PS: the same error message has just been posted to the SOGo mailing list.

Do you have a dockerfile with your environment to provide ?

I don't compile inside a docker environment.

Hi,
I'm having the exact same issue. I'm attaching the Dockerfile I'm using

FROM ubuntu:latest

RUN apt-get update
RUN apt-get install -y git make gnustep gnustep-make gnustep-devel gnustep-base-runtime libgnustep-base-dev libxml2-dev libmemcached-dev libssl-dev libldap-dev libldap2-dev libpq-dev libz-dev libsodium-dev pkg-config libzip-dev libcurl4-openssl-dev

WORKDIR /tmp
RUN git clone --depth 1 --branch SOPE-5.11.0 https://github.com/Alinto/sope SOPE
WORKDIR /tmp/SOPE
RUN ./configure --with-gnustep --enable-debug --disable-strip
RUN make
RUN make install

RUN ldconfig

WORKDIR /tmp
RUN git clone --depth 1 --branch SOGo-5.11.0 https://github.com/Alinto/SOGo
WORKDIR /tmp/SOGo
RUN ./configure --enable-debug --disable-strip
RUN make
RUN make install

Hello,
So from the dockerfile of @giopan (thanks btw!) I have the same error. But moment before the -lSOGo error, there is another one

 Linking framework SOGo ...
/usr/bin/ld: cannot find -lytnef: No such file or directory
collect2: error: ld returned 1 exit status

After installing it (on rhel/centos the package is called libytnef-devel )

apt install libytnef0-dev

the build works.

Could you all try it ? For now I don't quite understand if this is normal or a regression and why the build doesn't stop directly there

You need to add libytnef0-dev

Sebastien

Whoops, I didn't see the ytnef error. Thanks ;)

Installing libytnef0-dev seems to have solved this for me too.

So again, could you please have someone put a full list of required dependencies into the compilation guide, or at least give a guide on how to figure out what's missing? Because I did not see any "cannot find -lytnef" in that wall of text.