Including string.h solves a problem. ninja -C buildninja: Entering directory `build'[13/56] Generating client_demarshallers with a custom commandWrote subprojects/spice-common/common/generated_messages.hWrote subprojects/spice-common/common/generated_client_demarshallers.c[14/56] Compiling C object
> Including string.h solves a problem.
> ninja -C build
> ninja: Entering directory `build'
> [13/56] Generating client_demarshallers with a custom command
> Wrote subprojects/spice-common/common/generated_messages.h
> Wrote subprojects/spice-common/common/generated_client_demarshallers.c
> [14/56]