gtk3 imap connection issue

[Carlos Franke <carlos_franke taunusstein net>]

Hi!

I am trying to get started using the gtk3 development branch of Balsa.  
I am compiling it with:
 ./autogen.sh --with-nm=no --with-gnome=no
  ./configure --prefix=/usr --with-nm=no --with-gnome=no
… as I do not have networkmanager installed and compilation failed with  
some error about GtkCallbackMarshal in libgnomeui before I disabled  
Gnome support. No the build seems to go well.
However, when I start Balsa and it tries to connect to the two IMAP  
servers it remembers from the last session (notable Lavabit's), it  
freezes and will not even redraw the window when I hide-unhide it,  
leaving it and the server connection popup window blank. This is the  
the corresponding output of "balsa -D":
IMAP S: * OK [CAPABILITY IMAP4rev1 LITERAL+ SASL-IR LOGIN-REFERRALS ID  
ENABLE IDLE STARTTLS AUTH=PLAIN AUTH=LOGIN] imap4/pop3 ready.
IMAP S: * OK lavabit.com IMAP4rev1 lavad server ready.
IMAP C: 1 CAPABILITY
IMAP S: * CAPABILITY IMAP4rev1 STARTTLS LITERAL+
1 OK Completed.
IMAP C: 2 LOGIN "carlos_franke" (password hidden)
IMAP S: 2 NO [ALERT] This user account is configured to require that  
all IMAP sessions be connected over SSL.
IMAP S: * OK lavabit.com IMAP4rev1 lavad server ready.
IMAP C: 3 CAPABILITY
IMAP S: * OK [CAPABILITY IMAP4rev1 LITERAL+ SASL-IR LOGIN-REFERRALS ID  
ENABLE IDLE STARTTLS AUTH=PLAIN AUTH=LOGIN] imap4/pop3 ready.
IMAP S: * CAPABILITY IMAP4rev1 STARTTLS LITERAL+
3 OK Completed.

From what I understand, everything is "OK"—but it freezes anyway. What  
is wrong?
Strange enough, this apparently has something to do with the gtk3  
branch in particular, as I had built from master before by mistake,  
leading to completely different behaviour: The underscore in my  
username (carlos_franke) was placed under the following character like  
a diacritic in the server connection popup, and this mangled-up  
username seemed to be used for server authentication as well, as Balsa  
kept asking me about my password (while trying to authenticate  
unsuccessfully). If someone is interested in pursuing this, I am happy  
to help by testing things; although my main interest lies in the gtk3  
branch.
Hopefully these are not just peculiarities of Lavabit's IMAP server, as  
last time*…
* https://mail.gnome.org/archives/balsa-list/2011-October/msg00028.html

Carlos

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