[gnutls-dev] Symbol versioning in gnutls 1.5.x

Andreas Metzler ametzler at downhill.at.eu.org
Sun Sep 24 12:10:10 CEST 2006

I have just taken a first look at packaging gnuntls 1.5.x and stumbled
upon this one:

Version definitions:
1 0x01 0x0ebdb884 libgnutls.so.14
2 0x00 0x091de683 GNUTLS_1_3

Version definitions:
1 0x01 0x0ebdb883 libgnutls.so.13
2 0x00 0x091de683 GNUTLS_1_3

i.e. gnutls 1.5 uses a different soname than gnutls 1.4.x but the
symbols are still versioned with GNUTLS_1_3.

Afaiu, this is going to cause exactly the breakage symbol versioning
is supposed to protect us against: If a binary links against both 1.5
and 1.4 an runtime (e.g. mutt: linking directly against 1.5 for TLS
and indirectly against 1.4 though libldap) then symbol clashes happen
and segfaults might be caused.

Both gnutls-1.5.1/libextra/libgnutls-extra.vers and
gnutls-1.5.1/lib/libgnutls.vers should be bumped.

thanks, cu andreas
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