Next major release will be tb 24, in synch with fx 24 - we track the
stable/bugfix releases (which are not ESR. Not sure this is very
clear..) Users interested in testing the beta releases (tracking fx
betas) can grab them from my git tree.
- Fixes MFSA 2013-01 -> 20
- remove enigmail genxpi patch, and to a SUBST_VARS dance with an
XPCOM_ABI variable for the consistent naming of the new internal
libsuprocess ipc lib.
- add an enigmail patch to link with -shared, and remove a -Woption not
recognized by our gcc.
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