Command line: 
executing config test d3d12
+ cd /home/peko/autobuild/instance-0/output/build/qt5declarative-5.9.6/config.tests/d3d12 && PKG_CONFIG_SYSROOT_DIR=/home/peko/autobuild/instance-0/output/host/i586-buildroot-linux-musl/sysroot PKG_CONFIG_LIBDIR=/home/peko/autobuild/instance-0/output/host/i586-buildroot-linux-musl/sysroot/usr/lib/pkgconfig /home/peko/autobuild/instance-0/output/host/bin/qmake "CONFIG -= qt debug_and_release app_bundle lib_bundle" "CONFIG += shared warn_off console single_arch" -early "CONFIG += cross_compile" /home/peko/autobuild/instance-0/output/build/qt5declarative-5.9.6/config.tests/d3d12
> Info: creating stash file /home/peko/autobuild/instance-0/output/build/qt5declarative-5.9.6/config.tests/.qmake.stash
+ cd /home/peko/autobuild/instance-0/output/build/qt5declarative-5.9.6/config.tests/d3d12 && MAKEFLAGS= make
> make[1]: Entering directory '/home/peko/autobuild/instance-0/output/build/qt5declarative-5.9.6/config.tests/d3d12'
> /home/peko/autobuild/instance-0/output/host/bin/i586-linux-g++ -c -pipe -D_LARGEFILE_SOURCE -D_LARGEFILE64_SOURCE -D_FILE_OFFSET_BITS=64 -Os -g2 --sysroot=/home/peko/autobuild/instance-0/output/host/i586-buildroot-linux-musl/sysroot -g -w -fPIC  -I. -I/home/peko/autobuild/instance-0/output/host/mkspecs/devices/linux-buildroot-g++ -o d3d12.o d3d12.cpp
> d3d12.cpp:40:19: fatal error: d3d12.h: No such file or directory
>  #include <d3d12.h>
>                    ^
> compilation terminated.
> Makefile:245: recipe for target 'd3d12.o' failed
> make[1]: *** [d3d12.o] Error 1
> make[1]: Leaving directory '/home/peko/autobuild/instance-0/output/build/qt5declarative-5.9.6/config.tests/d3d12'
test config.quick.tests.d3d12 FAILED