Initially 6.9 and 7.1 had been added, however due to some issues (you can read
about them below) 6.9 had been disabled.
netbsd 6.9 does not have correct library namings for autotools:
2022-08-17T04:59:58.8339420Z libtool: link: (cd ".libs" && rm -f "libevent.so.1.0" && ln -s "libevent-2.2.so.1.0" "libevent.so.1.0")
$ grep ^library_names= libevent.la·
library_names='libevent-2.2.so.1.0 libevent.so.1.0'
# And this is wrong, it should be:
libtool: link: (cd ".libs" && rm -f "libevent-2.2.so.1" && ln -s "libevent-2.2.so.1.0.0" "libevent-2.2.so.1")
libtool: link: (cd ".libs" && rm -f "libevent.so" && ln -s "libevent-2.2.so.1.0.0" "libevent.so")
library_names='libevent-2.2.so.1.0.0 libevent-2.2.so.1 libevent.so'
**And I think that 7.1 should also fail, however it has system-wide libevent installed with evdns in the libevent.so**
Also there are some issues with `TEST_EXPORT_SHARED` test, because of libraries naming:
2022-09-13T06:38:29.2150790Z [test-export] test for install tree(in system-wide path)
2022-09-13T06:38:29.2151500Z [test-export] fail: link core and run core expects success but gets failure.
2022-09-13T06:38:29.2063870Z /usr/bin/cc CMakeFiles/test-export.dir/test-export.c.o -o test-export -L/usr/local/lib -Wl,-z,origin,-rpath,/usr/local/lib -levent_core-2.2 -lpthread -Wl,-rpath-link,/usr/X11R6/lib:/usr/local/lib·
2022-09-13T06:38:29.2152190Z ld: error: unable to find library -levent_core-2.2
2022-09-13T06:38:28.3915680Z -- Install configuration: "Release"
2022-09-13T06:38:28.3916700Z -- Up-to-date: /usr/local/lib/libevent_core-2.2.so.1.0.0
2022-09-13T06:38:28.3917110Z -- Up-to-date: /usr/local/lib/libevent_core-2.2.so.1
2022-09-13T06:38:28.3917480Z -- Up-to-date: /usr/local/lib/libevent_core.so
# no libevent_core-2.2.so
So I have to disable it too.
Co-authored-by: Azat Khuzhin <azat@libevent.org>
In ce8be2385b5fee16859a630fca0c98ad290c8e21 ("cmake: set rpath for
libraries on linux") RPATH was first instroduced.
Later in 6d09efe8686de824adf3d8810bbe0d5c386643e4 ("Set RPATH only if
installation is done into non system directory") it was set only if it
was installed to non system directory.
But absolute RPATH not a good default, let's change this.
Fixes: #920
