gcc using wrong isysroot?

Question

gcc using wrong isysroot?

Hi,

After upgrading to the newest xcode I'm having problems compiling various open source projects with gcc. In essence I'm always getting a variant of:

/Developer/SDKs/MacOSX10.4u.sdk/usr/include/stdarg.h:4:25: error: stdarg.h: No such file or directory

But why is gcc using the 10.4u sdk, and not the newest version? And can I change this somehow? Searching around haven't really given me any clues.

Alexander

Macbook

Posted on Feb 5, 2010 6:43 AM

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Answer 1

rsh1

Level 1

0 points

Feb 5, 2010 8:34 AM in response to Alexander Brill

I am having the same problems and I suspect the problem is related to Fink.

I am installing a python package and it's not compiling with te correct SDK

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Answer 2

etresoft

Level 8

46,212 points

Feb 5, 2010 10:46 AM in response to rsh1

rsh1 wrote:
I am having the same problems and I suspect the problem is related to Fink.

Normally I caution people against such "same problem" replies because you can't be sure of that. In this case, however, I don't doubt it.

If you are using some "open-source" package that you downloaded from Fink or *ports, you are essentially using a fork of that project. It may or may not work correctly on your machine. Most open-source software builds just fine on MacOS X out of the box. If it doesn't, there is very little chance that anything you get from Fink or *ports is going to be any better.

Short story - build it yourself. If you have problems, I'll be happy to help. If you have problems with Fink or *ports, take it up with them.

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Answer 3

Feb 7, 2010 8:39 AM in response to etresoft

No, I'm not using ports or fink to build software. The stuff I try to build comes directly from the publisher webpage. I.e. I'm trying to build the python-mysqldb module. Failing miserably in the progress.

But maybe I should just try to wipe out my developer tools install somehow and do a fresh install.

Also, all of this worked before I upgraded to 10.6.

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Answer 4

etresoft

Level 8

46,212 points

Feb 7, 2010 9:54 AM in response to Alexander Brill

Alexander Brill wrote:
Also, all of this worked before I upgraded to 10.6.

Ah ha! Did you install the latest version of Xcode afterwards?

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Answer 5

Feb 14, 2010 10:30 AM in response to etresoft

Yup. Installed it twice even, just to check that I hadn't broken anything at a later date. Using XCode to develop iphone stuff works.

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Answer 6

Mar 3, 2010 5:48 AM in response to Alexander Brill

Okay, I seem to have found a workaround. So I'll post it for anyone else stumbling upon this problem.

Use gcc 4.0 when compiling.

I.e:
CC=/usr/bin/gcc-4.0 python setup.py build

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