Build fails due to the following error.

main-panel-plugin.c:98:3: error: 'mi' undeclared (first use in this function)
   mi = gtk_check_menu_item_new_with_mnemonic (_("_Disable"));
   ^
main-panel-plugin.c:98:3: note: each undeclared identifier is reported only once for each function it appears in
Makefile:846: recipe for target 'libclipman_la-main-panel-plugin.lo' failed
make[3]: *** [libclipman_la-main-panel-plugin.lo] Error 1
make[3]: *** Waiting for unfinished jobs....
make[3]: Leaving directory '/home/hashimo/git/xfce.d/panel-plugins/xfce4-clipman-plugin/panel-plugin'
Makefile:668: recipe for target 'all' failed
make[2]: *** [all] Error 2
make[2]: Leaving directory '/home/hashimo/git/xfce.d/panel-plugins/xfce4-clipman-plugin/panel-plugin'
Makefile:527: recipe for target 'all-recursive' failed
make[1]: *** [all-recursive] Error 1
make[1]: Leaving directory '/home/hashimo/git/xfce.d/panel-plugins/xfce4-clipman-plugin'
Makefile:458: recipe for target 'all' failed
make: *** [all] Error 2

version:
clipman git-master
gcc 4.8.2

Build & Platform:
Build 2014-02-03 on ArchLinux