As I have mentioned before I assume as-needed [1] could play a role, at least
for pthread that you wondered about it most likely does.
-lpthread might be listed somewhere, but if not needed it will not effectvely
be linked in Ubuntu but t will in Debian.
No guarantees, but I'd not expect pthread to play a big role here - at
least to my gut feeling - that non usage of /usr/lib/postfix/libpostfix-
tls.so. That might also be a red herring, but it is mine :-)
@miriam - default used compiler/linker flags used effectively in a setup you
can mostly get via:
$ apt install dpkg-dev
# get built in -m options
$ gcc -Q --help=target
# Get any -f and similar options built in or derived from default distro
buildflags
$ echo "int main(void) {}" | gcc $(dpkg-buildflags --get LDFLAGS) -o
/dev/null -v -x c - &> /dev/stdout| grep collect
# Get linker options built in or derived from default distro buildflags
$ echo "int main(void) {}" | gcc $(dpkg-buildflags --get CFLAGS) -o /dev/null
-v -x c - 2>&1 | grep 'cc1'
# If a package build inserts some further flags you can add them as well in
this call
@miriam - how about you looking for a comparison of these flags and then
approximating them until they match - that could identify one option
that causes the effect which will help our theory-crafting.
I can have look at ltrace/function probing in the same time, just to
understand what is going on there.
[1]: https://wiki.ubuntu.com/ToolChain/CompilerFlags#A-Wl.2C--as-needed
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https://bugs.launchpad.net/bugs/1885403
Title:
posttls-finger fails to connect to private/tlsmgr
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