Bug#1084828: epics-base FTBFS with unshare backend

[Jochen Sprickerhof]

Source: epics-base
Version: 7.0.8.1+dfsg1-2
Severity: serious
Tags: ftbfs

Dear maintainer:

During a rebuild of all packages in unstable, your package failed to build:

--------------------------------------------------------------------------------
[...]
testLocalProvider.t ..
1..3
ok  1 - master.get()!=0
ok  2 - channelProvider.get()!=0
ok  3 - pvRecord.get()!=0
Listener::dataPut record exampleDouble requested  pvRecordField timeStamp.secondsPastEpoch
Listener::dataPut record exampleDouble requested  pvRecordField timeStamp.nanoseconds
RecordClient::~RecordClient exampleDouble
ok
terminate called after throwing an instance of 'epics::pvData::detail::ExceptionMixed<epics::pvData::BaseException>'
  what():  No (specified) network interface(s) available.
On line 206 of ../../src/server/serverContext.cpp
/<<PKGBUILDDIR>>/lib/linux-x86_64/libpvAccess.so.7.1.7(_ZN5epics6pvData6detail14ExceptionMixedINS0_13BaseExceptionEEC2IPKcEET_S7_i+0xcc) [0x7f48c81ec98c]
/<<PKGBUILDDIR>>/lib/linux-x86_64/libpvAccess.so.7.1.7(+0x86f7a) [0x7f48c81adf7a]
/<<PKGBUILDDIR>>/lib/linux-x86_64/libpvAccess.so.7.1.7(_ZN5epics8pvAccess13ServerContext6createERKNS1_6ConfigE+0x234) [0x7f48c82499c4]
/<<PKGBUILDDIR>>/lib/linux-x86_64/libpvAccess.so.7.1.7(_ZN5epics8pvAccess14startPVAServerERKNSt7__cxx1112basic_stringIcSt11char_traitsIcESaIcEEEibb+0x6fe) [0x7f48c824ae5e]
./testPVAServer(+0x2539) [0x5573d737c539]
./testPVAServer(main+0x13) [0x5573d737c223]
/lib/x86_64-linux-gnu/libc.so.6(+0x29d68) [0x7f48c7a33d68]
/lib/x86_64-linux-gnu/libc.so.6(__libc_start_main+0x85) [0x7f48c7a33e25]
./testPVAServer(_start+0x21) [0x5573d737c251]


testPVAServer.t ......
No subtests run

Test Summary Report
-------------------
testPVAServer.t    (Wstat: 0 Tests: 0 Failed: 0)
  Parse errors: No plan found in TAP output
Files=6, Tests=129,  0 wallclock secs ( 0.03 usr  0.00 sys +  0.03 cusr  0.01 csys =  0.07 CPU)
Result: FAIL
-------------------

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If required, the full build log is available here:

https://people.debian.org/~sanvila/unshare/unstable-20241008/

About the archive rebuild: The build was made on virtual machines from AWS,
using sbuild and a reduced chroot with only build-essential packages.

The unshare backend of sbuild was used for the build. A failure usually
indicates the package is trying to access Internet.

Thanks.