sysctl.h has been deprecated and should be removed

[Heather Ellsworth]

Builds fail because of using sys/sysctl.h

Unique.cpp:7:10: fatal error: sys/sysctl.h: No such file or directory
    7 | #include <sys/sysctl.h>
      | ^~~~~~~~~~~~~~
compilation terminated.

The build failure: https://launchpadlibrarian.net/532496954/buildlog_ubuntu-hirsute-amd64.gsimplecal_2.1-1build1_BUILDING.txt.gz

sys/sysctl.h usage has been deprecated: https://sourceware.org/pipermail/glibc-cvs/2020q2/069366.html

I've verified that removing this line (it is only in Unique.cpp), the build completes just fine.

The upstream project has recently been revived and looks like they're readying a 2.2 release, which does have this fix: https://salsa.debian.org/debian/gsimplecal/-/tree/debian/2.2-1

[Hugo Torres de Lima (f9kill)]

Hi

The package has already been updated to the new version.

https://tracker.debian.org/pkg/gsimplecal