Bug 647366

Summary:	net-mail/dovecot-2.2.33.2-r2[kerberos] fails to build with =app-crypt/heimdal-7.5.0
Product:	Gentoo Linux	Reporter:	Rafał Mużyło <galtgendo>
Component:	Current packages	Assignee:	Eray Aslan <eras>
Status:	RESOLVED FIXED
Severity:	normal	CC:	net-mail+disabled
Priority:	Normal
Version:	unspecified
Hardware:	All
OS:	Linux
Whiteboard:
Package list:		Runtime testing required:	---

Description Rafał Mużyło 2018-02-12 03:48:29 UTC

It's an '-Wl,--as-needed' problem.
autoconf check calls 'krb5-config gssapi'.
'krb5-config gssapi krb5' would have worked.

The result is:
/usr/lib/gcc/x86_64-pc-linux-gnu/6.4.0/../../../../x86_64-pc-linux-gnu/bin/ld: ./.libs/libauth.a(mech-gssapi.o): undefined reference to symbol 'krb5_free_context@@HEIMDAL_KRB5_2.0'

Comment 1 Tomáš Mózes 2018-02-12 07:36:22 UTC

Please attach the full build.log and the output of $(emerge --info).

Comment 2 Rafał Mużyło 2018-02-12 08:54:17 UTC

Output of `krb5-config gssapi krb5 --libs` is `-Wl,--enable-new-dtags -Wl,-rpath -Wl,/usr/lib64 -L/usr/lib64 -lgssapi -lkrb5`.
Output of `krb5-config gssapi --libs` is `-Wl,--enable-new-dtags -Wl,-rpath -Wl,/usr/lib64 -L/usr/lib64 -lgssapi`.

With '-Wl,--as-needed' and krb5_free_context being used it's just obvious why it breaks in the second case and that's what the autoconf check uses.

As for a workaround, I've simply sed-ed configure script with such change (both for '--libs' and '--cflags', even though '--cflags' in both cases returns '') - didn't feel like it's worth adding full autoreconf for something such trivial.
Proper solution would be pinging the upstream to update that portion of configure.ac...well, actually in their repo on master they've restructured, so there it would be m4/want_gssapi.m4.

This is likely triggered by the cleanup done in heimdal's krb5-config done around the time of changing versioning scheme.

Comment 3 Eray Aslan gentoo-dev

2020-09-12 08:42:02 UTC

should be fixed with https://github.com/dovecot/core/commit/2d316e272fc2c97fc729ee221189271799884c78

Please reopen if this is still a problem.