Compile error

[AS <pi-c posteo net>]

Hi! On my old laptop (running  Debian/Sid on i386), I get this error  
when running make:

	mailbox_imap.c: In function  
‘libbalsa_mailbox_imap_fetch_headers’:
	mailbox_imap.c:2333:15: error: comparison of integer  
expressions of different signedness: ‘glong’ {aka ‘long int’} and  
‘unsigned int’ [-Werror=sign-compare]
	 2333 |     if (msgno >  
imap_mbox_handle_get_exists(mimap->handle))
                        |               ^
        cc1: all warnings being treated as errors

I realize that there's some way to ignore warnings and not treat them  
as hard errors, but I guess the warning is there for a reason and  
ignoring it may cause strange behavior later on that's hard to explain.  
So here's the bug report. :-)

Have a nice day!

Andreas