The following packages will be installed:
 v4l2loopback 
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Fetching doinst.sh...  0%100%100%100%100%100%Done
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v4l2loopback-0.12.5/
v4l2loopback-0.12.5/.github/
v4l2loopback-0.12.5/.github/ISSUE_TEMPLATE.md
v4l2loopback-0.12.5/.github/ISSUE_TEMPLATE/
v4l2loopback-0.12.5/.github/ISSUE_TEMPLATE/bug_report.md
v4l2loopback-0.12.5/.gitignore
v4l2loopback-0.12.5/AUTHORS
v4l2loopback-0.12.5/COPYING
v4l2loopback-0.12.5/ChangeLog
v4l2loopback-0.12.5/Makefile
v4l2loopback-0.12.5/Makefile.manual
v4l2loopback-0.12.5/NEWS
v4l2loopback-0.12.5/README.md
v4l2loopback-0.12.5/TODO
v4l2loopback-0.12.5/currentversion.sh
v4l2loopback-0.12.5/dkms.conf
v4l2loopback-0.12.5/doc/
v4l2loopback-0.12.5/doc/docs.txt
v4l2loopback-0.12.5/doc/kernel_debugging.txt
v4l2loopback-0.12.5/doc/makeformats.sh
v4l2loopback-0.12.5/doc/missingformats.h
v4l2loopback-0.12.5/doc/v4l2_formats.txt
v4l2loopback-0.12.5/examples/
v4l2loopback-0.12.5/examples/.gitignore
v4l2loopback-0.12.5/examples/Makefile
v4l2loopback-0.12.5/examples/README
v4l2loopback-0.12.5/examples/ondemandcam.c
v4l2loopback-0.12.5/examples/restarting-writer.sh
v4l2loopback-0.12.5/examples/test.c
v4l2loopback-0.12.5/examples/yuv420_infiniteloop.c
v4l2loopback-0.12.5/examples/yuv4mpeg_to_v4l2.c
v4l2loopback-0.12.5/man/
v4l2loopback-0.12.5/man/touch
v4l2loopback-0.12.5/release.sh
v4l2loopback-0.12.5/tests/
v4l2loopback-0.12.5/tests/Makefile
v4l2loopback-0.12.5/tests/interlaced_w
v4l2loopback-0.12.5/tests/test_dqbuf.c
v4l2loopback-0.12.5/utils/
v4l2loopback-0.12.5/utils/v4l2loopback-ctl
v4l2loopback-0.12.5/v4l2loopback.c
v4l2loopback-0.12.5/v4l2loopback_formats.h
patching file README.md
patching file v4l2loopback.c
Building v4l2-loopback driver...
make -C /lib/modules/4.4.276/build M=/usr/src/slapt-src-i486/system/v4l2loopback/v4l2loopback-0.12.5 modules
make[1]: *** /lib/modules/4.4.276/build: No such file or directory.  Stop.
make: *** [Makefile:43: v4l2loopback.ko] Error 2
fakeroot -- sh v4l2loopback.SlackBuild Failed