[Swan-commit] Changes to ref refs/heads/master

[Tuomo Soini]

New commits:
commit d530d284120b543b8b6182dd6f01471a124db9f3
Author: Tuomo Soini <tis at foobar.fi>
Date:   Tue May 21 18:35:09 2019 +0300

    packaging/rhel6: remove -lrt, not needed any more
    
    5db185497dcfff703391db955138b6c5d54a8893 added -lrt to necessary places.

commit 5db185497dcfff703391db955138b6c5d54a8893
Author: Tuomo Soini <tis at foobar.fi>
Date:   Tue May 21 17:31:35 2019 +0300

    Makefiles: Use RT_LDFLAGS for glibc < 2.17 support

commit 4b93354f3575e4c6abe91a4e95f6fd43f4a99b0c
Author: Tuomo Soini <tis at foobar.fi>
Date:   Tue May 21 17:07:44 2019 +0300

    userland-cflags.mk: add RT_LDFLAGS= for older glibc