[Scons-users] scons executing "gcc -E -x c -"

[Paul Sheer]

Hi,

I am trying to speed up a large scons build system for the case where
the developer has only changed one .cc file.

I am tracing all shell executions by scons and it seems to perform
thousands of "gcc -E -x c -" even when the developer has changed
nothing.

Can anyone explain why this is, and how to improve this situation?

Kind regards

apt-cache show scons |grep Version ==> Version: 2.4.1-1

Paul