DKMS make.log for v4l2loopback-0.8.0 for kernel 3.19.0-17-generic (x86_64)
samedi 16 mai 2015, 18:42:28 (UTC+0200)
Building v4l2-loopback driver...
make -C /lib/modules/3.19.0-17-generic/build M=/var/lib/dkms/v4l2loopback/0.8.0/build modules
make[1]: Entering directory `/usr/src/linux-headers-3.19.0-17-generic'
  CC [M]  /var/lib/dkms/v4l2loopback/0.8.0/build/v4l2loopback.o
/var/lib/dkms/v4l2loopback/0.8.0/build/v4l2loopback.c: In function ‘attr_store_maxopeners’:
/var/lib/dkms/v4l2loopback/0.8.0/build/v4l2loopback.c:486:2: error: implicit declaration of function ‘strict_strtoul’ [-Werror=implicit-function-declaration]
  if (strict_strtoul(buf, 0, &curr))
  ^
cc1: some warnings being treated as errors
make[2]: *** [/var/lib/dkms/v4l2loopback/0.8.0/build/v4l2loopback.o] Error 1
make[1]: *** [_module_/var/lib/dkms/v4l2loopback/0.8.0/build] Error 2
make[1]: Leaving directory `/usr/src/linux-headers-3.19.0-17-generic'
make: *** [v4l2loopback.ko] Error 2