>>> v4l2loopback 0.12.5 Downloading
wget --passive-ftp -nd -t 3 -O '/home/buildroot/autobuild/instance-0/output-1/build/.v4l2loopback-0.12.5.tar.gz.jqlhUM/output' 'https://github.com/umlaeute/v4l2loopback/archive/v0.12.5/v4l2loopback-0.12.5.tar.gz' 
--2022-06-27 11:24:07--  https://github.com/umlaeute/v4l2loopback/archive/v0.12.5/v4l2loopback-0.12.5.tar.gz
Resolving github.com (github.com)... 140.82.112.4
Connecting to github.com (github.com)|140.82.112.4|:443... connected.
HTTP request sent, awaiting response... 302 Found
Location: https://codeload.github.com/umlaeute/v4l2loopback/tar.gz/refs/tags/v0.12.5 [following]
--2022-06-27 11:24:07--  https://codeload.github.com/umlaeute/v4l2loopback/tar.gz/refs/tags/v0.12.5
Resolving codeload.github.com (codeload.github.com)... 140.82.114.10
Connecting to codeload.github.com (codeload.github.com)|140.82.114.10|:443... connected.
HTTP request sent, awaiting response... 200 OK
Length: 51468 (50K) [application/x-gzip]
Saving to: '/home/buildroot/autobuild/instance-0/output-1/build/.v4l2loopback-0.12.5.tar.gz.jqlhUM/output'

     0K .......... .......... .......... .......... .......... 99%  367K 0s
    50K                                                       100% 4.24M=0.1s

2022-06-27 11:24:07 (369 KB/s) - '/home/buildroot/autobuild/instance-0/output-1/build/.v4l2loopback-0.12.5.tar.gz.jqlhUM/output' saved [51468/51468]

v4l2loopback-0.12.5.tar.gz: OK (sha256: e152cd6df6a8add172fb74aca3a9188264823efa5a2317fe960d45880b9406ae)
>>> v4l2loopback 0.12.5 Extracting
gzip -d -c /home/buildroot/autobuild/instance-0/dl/v4l2loopback/v4l2loopback-0.12.5.tar.gz | tar --strip-components=1 -C /home/buildroot/autobuild/instance-0/output-1/build/v4l2loopback-0.12.5   -xf -
>>> v4l2loopback 0.12.5 Patching
>>> v4l2loopback 0.12.5 Configuring
>>> v4l2loopback 0.12.5 Building
>>> v4l2loopback 0.12.5 Building kernel module(s)
PATH="/home/buildroot/autobuild/instance-0/output-1/host/bin:/home/buildroot/autobuild/instance-0/output-1/host/sbin:/usr/local/sbin:/usr/local/bin:/usr/sbin:/usr/bin:/sbin:/bin" PKG_CONFIG="/home/buildroot/autobuild/instance-0/output-1/host/bin/pkg-config" PKG_CONFIG_SYSROOT_DIR="/" PKG_CONFIG_ALLOW_SYSTEM_CFLAGS=1 PKG_CONFIG_ALLOW_SYSTEM_LIBS=1 PKG_CONFIG_LIBDIR="/home/buildroot/autobuild/instance-0/output-1/host/lib/pkgconfig:/home/buildroot/autobuild/instance-0/output-1/host/share/pkgconfig" BR_BINARIES_DIR=/home/buildroot/autobuild/instance-0/output-1/images KCFLAGS=-Wno-attribute-alias /usr/bin/make -j4 -C /home/buildroot/autobuild/instance-0/output-1/build/linux-5.17.13 HOSTCC="/usr/bin/gcc -O2 -I/home/buildroot/autobuild/instance-0/output-1/host/include -L/home/buildroot/autobuild/instance-0/output-1/host/lib -Wl,-rpath,/home/buildroot/autobuild/instance-0/output-1/host/lib" ARCH=sparc64 INSTALL_MOD_PATH=/home/buildroot/autobuild/instance-0/output-1/target CROSS_COMPILE="/home/buildroot/autobuild/instance-0/output-1/host/bin/sparc64-buildroot-linux-gnu-" WERROR=0 DEPMOD=/home/buildroot/autobuild/instance-0/output-1/host/sbin/depmod  PWD=/home/buildroot/autobuild/instance-0/output-1/build/v4l2loopback-0.12.5/. M=/home/buildroot/autobuild/instance-0/output-1/build/v4l2loopback-0.12.5/. modules
make[1]: Entering directory '/home/buildroot/autobuild/instance-0/output-1/build/linux-5.17.13'
  CC [M]  /home/buildroot/autobuild/instance-0/output-1/build/v4l2loopback-0.12.5/./v4l2loopback.o
  MODPOST /home/buildroot/autobuild/instance-0/output-1/build/v4l2loopback-0.12.5/./Module.symvers
ERROR: modpost: "video_ioctl2" [/home/buildroot/autobuild/instance-0/output-1/build/v4l2loopback-0.12.5/./v4l2loopback.ko] undefined!
ERROR: modpost: "__video_register_device" [/home/buildroot/autobuild/instance-0/output-1/build/v4l2loopback-0.12.5/./v4l2loopback.ko] undefined!
ERROR: modpost: "v4l2_ctrl_new_custom" [/home/buildroot/autobuild/instance-0/output-1/build/v4l2loopback-0.12.5/./v4l2loopback.ko] undefined!
ERROR: modpost: "v4l2_ctrl_handler_init_class" [/home/buildroot/autobuild/instance-0/output-1/build/v4l2loopback-0.12.5/./v4l2loopback.ko] undefined!
ERROR: modpost: "video_device_alloc" [/home/buildroot/autobuild/instance-0/output-1/build/v4l2loopback-0.12.5/./v4l2loopback.ko] undefined!
ERROR: modpost: "v4l2_device_register" [/home/buildroot/autobuild/instance-0/output-1/build/v4l2loopback-0.12.5/./v4l2loopback.ko] undefined!
ERROR: modpost: "video_device_release" [/home/buildroot/autobuild/instance-0/output-1/build/v4l2loopback-0.12.5/./v4l2loopback.ko] undefined!
ERROR: modpost: "video_devdata" [/home/buildroot/autobuild/instance-0/output-1/build/v4l2loopback-0.12.5/./v4l2loopback.ko] undefined!
ERROR: modpost: "v4l2_ctrl_handler_free" [/home/buildroot/autobuild/instance-0/output-1/build/v4l2loopback-0.12.5/./v4l2loopback.ko] undefined!
ERROR: modpost: "v4l2_device_unregister" [/home/buildroot/autobuild/instance-0/output-1/build/v4l2loopback-0.12.5/./v4l2loopback.ko] undefined!
WARNING: modpost: suppressed 1 unresolved symbol warnings because there were too many)
scripts/Makefile.modpost:134: recipe for target '/home/buildroot/autobuild/instance-0/output-1/build/v4l2loopback-0.12.5/./Module.symvers' failed
make[2]: *** [/home/buildroot/autobuild/instance-0/output-1/build/v4l2loopback-0.12.5/./Module.symvers] Error 1
make[2]: *** Deleting file '/home/buildroot/autobuild/instance-0/output-1/build/v4l2loopback-0.12.5/./Module.symvers'
Makefile:1746: recipe for target 'modules' failed
make[1]: *** [modules] Error 2
make[1]: Leaving directory '/home/buildroot/autobuild/instance-0/output-1/build/linux-5.17.13'
package/pkg-generic.mk:290: recipe for target '/home/buildroot/autobuild/instance-0/output-1/build/v4l2loopback-0.12.5/.stamp_built' failed
make: *** [/home/buildroot/autobuild/instance-0/output-1/build/v4l2loopback-0.12.5/.stamp_built] Error 2
make: Leaving directory '/home/buildroot/autobuild/instance-0/buildroot'