Setting up ccache with Qt Creator on Windows

Question

I'm trying to set up ccache in Qt Creator on Windows.

Unfortunatelly I couldn't find any good instruction. How to make it working?

I have ccache installed with Cygwin.

edit:

I've tried adding

QMAKE_CXX+="ccache g++"

as additional parameter in qmake build step.

But in compile output I still have "g++ -c -g -Wall ..." and I suppose it should be "ccache g++ ..."

score 12 · Accepted Answer · answered Jul 10 '12 at 00:25

12

It should be:

"QMAKE_CXX=ccache g++"

And you might need to rerun qmake from the Build menu if QtCreator doesn't update automatically the makefile after you add that parameter.

answered Jul 10 '12 at 00:25

alexisdm

I also must set CCACHE_DIR in Windows cause ccache was unable to create $HOME/.ccache – krzych Jul 10 '12 at 06:19
2

If you don't want to hardcode the compiler you can use `QMAKE_CXX="ccache $$QMAKE_CXX"` to prefix the existing setting. – Zitrax May 23 '18 at 10:00
i also must remove precompiled header. In qt it's particularly removing the line: "PRECOMPILED_HEADER=MY_PRECOMP.HPP" – seleciii44 Feb 08 '19 at 04:12
@alexisdm I am confused, why do you show the quotes including QMAKE, while other answers show quotes only including the```ccache g++``` part? – Tyler Shellberg Mar 17 '20 at 22:21

score -1 · Answer 2 · answered Jul 09 '12 at 21:44

-1

QtCreator doesn't know about ccache, and besides, it's looking for trouble to mix Cygwin binaries with native binaries on Windows.

answered Jul 09 '12 at 21:44

darkphoenix

2 Answers2