G++-4.2: No such file or directory

tobias.hunger

... or you can force the mkspec used by passing a "-spec macx-g++" to the qmake step (which will override the one chosen by Qt Creator).

... or you can create a symlink from /usr/bin/g++ and /usr/bin/gcc to /usr/bin/g++-4.2 and /usr/bin/gcc-4.2

... or you could test http://codereview.qt-project.org/#change,11297 and tell me whether that fixes the issue.

I would highly appreciate somebody trying the latter;-)

miroslav

I think the underlying issue is the Creator defaults to the macx-g++42 make spec. So Tobias' suggestion to override that with macx-g++ is probably the best solution for now. The only resources that I know of are here in the forum.

Eonz

Thanks guys. I tried, but I honestly do not know how to do what you suggest. To "override that with macx-g++". Qt Creator's preferences doesn't seem to show anything like that so I'm guessing what you're suggesting requires more advance command line stuff.

I tried Tobias' link, but a login is required for that (the one for this forum doesn't work for me).

I can develop on my Windows machine for now.

tobias.hunger

Also "check here":http://developer.qt.nokia.com/forums/viewthread/12592/: Another thread about this topic, with a better explanation on how to override the mkspec.

miroslav

Just submitted a review here, this seems to solve the problem: http://codereview.qt-project.org/#change,11297

tobias.hunger

... and I just submitted the fix to the 2.4 branch. Thanks Miroslav for testing!

miroslav

My pleasure :-)

? This user is from outside of this forum

To solve the problem:

When upgrading from 10.6 to 10.7, you can not uninstall Xcode to upgrade just because the g + + -4.2 to install xcode 4.2.

The steps are:

1 - keep the xcode 3.2, I'm not wrong.
install xcode 4.2 and above.

PS: If you uninstall the xcode 3.2 and xcode 4.2 install to make any kind of build in QT, you'll get errors (g + + -4.2 no such directory) or something like that.

2 - After upgrading to the Lion remains with the xcode 3.2, install the xcode 4.2 and 3.2 does not uninstall after install QT.

DomX

So I'm having the same issue, has this been resolved yet? I'm also running Mac OSX 10.7.2 with XCode 4.2.1

I tried following this link: http://codereview.qt-project.org/#change,11297 But it requires a username and password. Any help without having to do a clean install would be much appreciated,

maxvanceffer

I just add macx-g++ and error disappeared, but then make or g++ doesn't see all Qt classes, macros and etc.... Building from Qt creator, Mac Os 10.7, XCode 4.2

Any advice ?

alpha_one_x86

here with the spec macx-g++ that's not work!

miroslav

Hi!

[quote author="alpha_one_x86" date="1331383665"]here with the spec macx-g++ that's not work![/quote]

Could you give a few more details on what exactly is not working?

alpha_one_x86

I have drop the MAC SDK version, because Qt 4.8 not work with xcode3, and with xcode4 SDK version is minimum 10.6