[Dovecot] virtual plugin question

[Nikita Koshikov]

> There's no -g parameter given to gcc. The emerge overrides CFLAGS by
> adding -march=i686 etc. stuff in there, which also removes -g parameter.
> Try to figure out some way to add it back.

(gdb) bt full
#0  0xb7d80080 in virtual_storage_sync_init () from /usr/lib/dovecot/imap/lib20_virtual_plugin.so
No symbol table info available.
#1  0x08070294 in imap_sync_init (client=0x8134a40, box=0x813d480, imap_flags=IMAP_SYNC_FLAG_SAFE, flags=0) at imap-sync.c:146
        ctx = (struct imap_sync_context *) 0x83809b8
        __PRETTY_FUNCTION__ = "imap_sync_init"
#2  0x0807057a in cmd_sync_delayed (client=0x8134a40) at imap-sync.c:591
        cmd = <value optimized out>
        first_expunge = <value optimized out>
        first_nonexpunge = <value optimized out>
        __PRETTY_FUNCTION__ = "cmd_sync_delayed"
#3  0x08067b64 in client_handle_input (client=0x8134a40) at client.c:728
        ret = false
        remove_io = false
        handled_commands = true
        __PRETTY_FUNCTION__ = "client_handle_input"
#4  0x0806838f in client_input (client=0x8134a40) at client.c:752
        cmd = <value optimized out>
        output = (struct ostream *) 0x8134bf4
        bytes = <value optimized out>
        __PRETTY_FUNCTION__ = "client_input"
#5  0x080fa720 in io_loop_handler_run (ioloop=0x812e9b0) at ioloop-epoll.c:208
        ctx = (struct ioloop_handler_context *) 0x812eab8
        event = (const struct epoll_event *) 0x812eaf8
        list = (struct io_list *) 0x8134c78
        io = (struct io_file *) 0x8134c50
        tv = {tv_sec = 0, tv_usec = 395850}
        t_id = 2
        msecs = <value optimized out>
        ret = 1
        i = 0
        j = 0
        call = <value optimized out>
#6  0x080f9ba0 in io_loop_run (ioloop=0x812e9b0) at ioloop.c:338
No locals.
#7  0x08070e15 in main (argc=Cannot access memory at address 0xe
) at main.c:323
No locals.
(gdb)