INDEX build failed for 8.x

[Ports Index build]

INDEX build failed with errors:
Generating INDEX-8 - please wait..clang: not found
 Done.
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Committers on the hook:
 bapt danfe gabor glewis kwm pav rakuco rene skreuzer wg 

Most recent SVN update was:
Updating '.':
U    graphics/libgphoto2/Makefile
U    graphics/fusefs-gphotofs/Makefile
U    graphics/gphoto2/Makefile
UU   games/nethack33/Makefile
U    x11-wm/compton/Makefile
U    x11-wm/compton/distinfo
U    x11-wm/compton/pkg-descr
Updated to revision 322597.