Missing header files when running make install

[memtech3]

when running make install in the devcontainer from PR #71 (on a windows subsystem for linux 2 host) with the libheadunit submodule updated to the latest commit (PR #84) I get the following error:

In file included from ../../../modules/android-auto/androidauto.h:9,
                 from ../../../modules/android-auto/androidauto.cpp:1:
../../../modules/android-auto/headunit.h:22:10: fatal error: glib_utils.h: No such file or directory
   22 | #include "glib_utils.h"

when running make install in a Debian VM with the libheadunit submodule updated to the latest commit (PR #84) I get the following error:

In file included from ../../../modules/audio-processor/audioprocessorplugin.h:10,
		 from ../../../modules/audio-processor/audioprocessorplugin.cpp:1:
../../../modules/audio-processor/backends/TDA7418/TDA7418.h:8:10: fatal error: i2c/smbus.h: No such file or directory
   8 | #include <i2c/smbus.h>

This is the chain of commands I ran in both the devcontainer and on the Debain VM

protoc --proto_path=modules/android-auto/headunit/hu/ --cpp_out=modules/android-auto/headunit/hu/generated.x64/ modules/android-auto/headunit/hu/hu.proto modules/android-auto/headunit/hu/bt.proto
mkdir build && cd build
qmake PREFIX=~/hud ../headunit-desktop.pro
make -j5
make install

When I skip the make install step I am able to run headunit-desktop from the build directory

Any ideas what might be causing this? Am I missing dependencies somehow?