Ca me dit ça :
[hultra@HultraPC nuvolaplayer-1.0.1]$ ./waf distclean
'distclean' finished successfully (0.004s)
[hultra@HultraPC nuvolaplayer-1.0.1]$ ./waf configure
Setting top to : /home/hultra/Downloads/nuvolaplayer-1.0.1
Setting out to : /home/hultra/Downloads/nuvolaplayer-1.0.1/build
Install prefix : /usr/local/
Checking for 'gcc' (c compiler) : ok
Checking for program pkg-config : /usr/bin/pkg-config
Checking for 'gobject-2.0' : yes
Checking for 'gthread-2.0' : yes
Checking for program valac-0.8 : not found
Checking for program valac : /usr/bin/valac
Checking for valac version >= (0, 8, 0) : (0, 14, 0)
Checking for program valac-0.12 : /usr/bin/valac
Checking for valac-0.12 version >= (0, 12, 0) : (0, 14, 0)
Checking for program msgfmt : /usr/bin/msgfmt
Checking for program perl : /usr/bin/perl
Checking for 'intltool-merge' : /usr/bin/intltool-merge
Checking for header locale.h : yes
Checking for 'gee-1.0' >= 0.6 : yes
Checking for 'libnotify' >= 0.4 : yes
Checking for 'libnotify' version : yes
libnotify VAPI fix will be applied : no
Checking for 'x11' >= 0.5 : yes
Checking for 'webkit-1.0' >= 1.5 : not found
Checking for 'webkit-1.0' >= 1.0 : not found
The configuration failed
(complete log in /home/hultra/Downloads/nuvolaplayer-1.0.1/build/config.log)