stop qt build process compiling multiple files in one invocation on windows

[Conrad_Jones]

How can I stop the Qt build process building multiple files in one invocation of the compiler ? The reason being is sccache can't cache this calls, I get no caching on a windows build this way, my Mac and linux builds are around 20 minutes (cache fully populated) the windows build is multiple hours.

To be clear this is building Qt itself from source, not a target app.

[Christian Ehrlicher]

@Conrad_Jones said in stop qt build process compiling multiple files in one invocation on windows:

To be clear this is building Qt itself from source, not a target app.

Why do you rebuild Qt completely the whole day?

[Conrad_Jones]

@Christian-Ehrlicher sorry I'm not being rude but that doesn't make sense (I appreciate English my not be your first language)

do you mean why do I rebuild Qt multiple times ?

because of changes.:

upgrade qt version,
change compile options
change configure options
use internal libpng, internal zlib internal libjpeg.

quite often you build something then realise you need different options when you run up against an issue, supporting 3 operating systems with multiple permutations of each requires different build options.