Setting default make options for Qt Creator?

Question

How can i override default make parameters , which is:

make -w

Each time i create a project , i had to modify project settings , adding -j4 to make parameters.

Can i set make -w -j4 by default ?

EDIT

The best way to do this is setting MAKEFLAGS environment variable , i'm picking the only answer as the best only to shut this thread down.

To set this for UNIX, modify the *.desktop file of Qt Creator , prefix the line entitled Exec= with env MAKEFLAGS=-j4 , but be aware that you won't be able to cease building in QtCreator immediately after setting to multithread.

Hint: you can simply write `-j`, it chooses the number of threads automatically, which you typically want (maybe not always). — leemes, Jul 13 '14 at 13:14
@leemes this is often dangerous, for with complex cmake-generated projects this turns into a fork bomb and crashes my PC. — ansgri, Aug 16 '15 at 12:12

score 26 · Answer 1 · edited Jul 22 '17 at 08:36

26

To make it global and permanent go to

Tools > Options > Build & Run > Kits > (pick your toolchain)

and fill your predefined env settings: MAKEFLAGS=-j4

Screenshot what to click exactly

edited Jul 22 '17 at 08:36

asu

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answered Mar 17 '16 at 11:28

dimril

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This is now at: Tools > Options > Kits > (pick your toolchain) > Environment – Martin R. Feb 06 '19 at 18:14

score 23 · Accepted Answer · answered Jan 16 '12 at 10:01

23

In the qtcreator go to the "Projects tab" and set "Make arguments" as you like: enter image description here

answered Jan 16 '12 at 10:01

Neox

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And also for further reference: [Qt Creator Build Setup](http://doc.qt.nokia.com/qtcreator-2.4/creator-build-settings.html) – Neox Jan 16 '12 at 10:03
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As per the question EDIT, this should not be the correct answer. – KcFnMi May 29 '16 at 17:12
This is the best answer, but that field isn't there on recent versions (e.g. v4.7). – user2023370 Aug 18 '18 at 09:10
@user2023370 I disagree. In v4.7.0 and v4.7.1 it is there, once I click the `Details` button. – pogojotz Oct 02 '18 at 13:20
is it possible to put this setting in the `.pro` file of `MyQtApp` somehow? – TheWaterProgrammer Nov 29 '18 at 18:51

MTS · Answer 3 · 2013-01-11T17:00:47.770

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If you want -jx parameter to be default each time you create a new or open some project, you must add enviroment variable MAKEFLAGS to your system with value -jx.

For example, at ubuntu for 8 - threding compilation this options can be realized by adding

MAKEFLAGS="-j8"

to /etc/enviroments

Result will be: enter image description here

edited Jan 11 '13 at 17:00

answered Jan 09 '13 at 16:30

MTS

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Hint: you can simply write `-j`, it chooses the number of threads automatically, which you typically want (maybe not always). – leemes Jul 13 '14 at 13:15
I tried "-j". It doesn't work. It says: "no process count specified for option -j" – user1914692 Jan 18 '16 at 17:26

score 2 · Answer 4 · answered Dec 10 '12 at 04:14

2

After attempting implement the fix described in the question I eventually found the following (clearly this in only a solution to linux's that use the freedesktop concept of .desktop files):

The line in "/usr/local/share/applications/Nokia-QtCreator.desktop" was:

Exec=/opt/qtcreator-2.5.2/bin/qtcreator.sh %F

I changed it to:

Exec=env MAKEFLAGS=-j16 /opt/qtcreator-2.5.2/bin/qtcreator.sh %F

And got the functionality requested in the question.

Ok, I have no idea why following the instructions in the question I didn't get there but I didn't. I hope this explanation will help someone.

answered Dec 10 '12 at 04:14

LovesTha

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Hint: you can simply write `-j`, it chooses the number of threads automatically, which you typically want (maybe not always). – leemes Jul 13 '14 at 13:16
I find that -j selects a number slightly too low for optimal compile speed. -j is close enough, but I like as fast as possible. – LovesTha Jul 21 '14 at 03:25

Setting default make options for Qt Creator?

EDIT

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