K 10
svn:author
V 6
pkubaj
K 8
svn:date
V 27
2020-09-03T14:04:26.589981Z
K 7
svn:log
V 343
MFH: r547453

deskutils/xfce4-generic-slider: fix build on GCC architectures

Use C11 compiler:
/usr/local/include/xfce4/libxfce4util/xfce-kiosk.h:37: error: redefinition of typedef 'XfceKiosk'
/usr/local/include/xfce4/libxfce4util/xfce-kiosk.h:35: error: previous declaration of 'XfceKiosk' was here

Approved by:	portmgr (fix build blanket)

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