src/filemanager/filegui.c does not compile on Solaris due to missing macros.
AVE_STRUCT_STATVFS_F_BASETYPE and HAVE_STRUCT_STATVFS_F_FSTYPENAME macros
are not set or even defined in config.h. configure scrips does not even
check for those members.
Signed-off-by: Andrew Borodin <aborodin@vmail.ru>