When I run ./jb configure it errors out with the following messages:

[Robert Weir]

The following occurs when I try to run ./jb configure ---->
me@ACER mail-notification-5.4]$ ./jb configure
building jb...
jbsrc/lib/src/core/jb-main.c: In function ‘jb_main’:
jbsrc/lib/src/core/jb-main.c:164:3: error: ‘g_type_init’ is deprecated [-Werror=deprecated-declarations]
   g_type_init();
   ^~~~~~~~~~~
In file included from /usr/include/glib-2.0/gobject/gobject.h:24:0,
                 from /usr/include/glib-2.0/gobject/gbinding.h:29,
                 from /usr/include/glib-2.0/glib-object.h:23,
                 from jbsrc/lib/src/core/jb-variable.h:26,
                 from jbsrc/lib/src/core/jb-main.c:25:
/usr/include/glib-2.0/gobject/gtype.h:681:23: note: declared here
 void g_type_init (void);
                       ^~~~~~~~~~~
cc1: all warnings being treated as errors
jbsrc/lib/src/core/jb-util.c: In function ‘print_warning_or_error’:
jbsrc/lib/src/core/jb-util.c:225:3: error: function might be possible candidate for ‘gnu_printf’ format attribute [-Werror=suggest-attribute=format]
   message = g_strdup_vprintf(format, args);
   ^~~~~~~
cc1: all warnings being treated as errors
ERROR: cannot build jb
[me@ACER mail-notification-5.4]$
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