Public bug reported:
This code tries to use MINSIGSTKSZ as part of a constant expression, but in
glibc 2.34
this now expands to a call to sysconf(), causing a build failure:
In file included from /usr/include/signal.h:328,
from /<<PKGBUILDDIR>>/external/catch2/catch/catch.hpp:4855,
from /<<PKGBUILDDIR>>/lib/test/testsuite.cpp:2:
/<<PKGBUILDDIR>>/external/catch2/catch/catch.hpp:7431:58: error: call to
non-‘constexpr’ function ‘long int sysconf(int)’
7431 | constexpr static std::size_t sigStackSize = 32768 >= MINSIGSTKSZ ?
32768 : MINSIGSTKSZ;
| ^~~~~~~~~~~
In file included from /usr/include/x86_64-linux-gnu/bits/sigstksz.h:24,
from /usr/include/signal.h:328,
from /<<PKGBUILDDIR>>/external/catch2/catch/catch.hpp:4855,
from /<<PKGBUILDDIR>>/lib/test/testsuite.cpp:2:
/usr/include/unistd.h:640:17: note: ‘long int sysconf(int)’ declared here
640 | extern long int sysconf (int __name) __THROW;
| ^~~~~~~
In file included from /<<PKGBUILDDIR>>/lib/test/testsuite.cpp:2:
/<<PKGBUILDDIR>>/external/catch2/catch/catch.hpp:7490:45: error: size of array
‘altStackMem’ is not an integral constant-expression
7490 | char FatalConditionHandler::altStackMem[sigStackSize] = {};
| ^~~~~~~~~~~~
[...]
(https://launchpad.net/ubuntu/+source/segyio/1.8.3-1build5)
No fix for this is currently available in the upstream repository.
** Affects: segyio (Ubuntu)
Importance: Undecided
Status: New
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https://bugs.launchpad.net/bugs/1951657
Title:
error: call to non-‘constexpr’ function ‘long int sysconf(int)’FTBFS:
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