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Some issues building EigenD on Lion.

I have XCode 3.2.6 and XCode 4.1 installed. Seems that 4.1 tries to remove gcc 4.0. I thought this was the problem as EigenD build could not find gcc++-4.0.

There is a version left here
/Developer-3.2.6/usr/bin

Soft linked to that.

Scons seems to have issues finding my standard BSD libraries even though they exist.

[Chaos-3:/Developer-3.2.6/Projects/Eigenlabs-EigenD-184a209] chrislloyd% make
scons: Reading SConscript files ...
platform: macosx-i386 python: /usr/pi/bin/python
clearing /Developer-3.2.6/Projects/Eigenlabs-EigenD-184a209/tmp/stage
clearing /Developer-3.2.6/Projects/Eigenlabs-EigenD-184a209/tmp/pkg
pip: tmp/bin/pip
building release 1.4.5-experimental
scons: done reading SConscript files.
scons: Building targets ...
tmp/obj/lib_alpha2/src/a2dump.o (g++-4.0)
lib_alpha2/src/a2dump.cpp:24:20: error: unistd.h: No such file or directory
lib_alpha2/src/a2dump.cpp:30:18: error: cstdio: No such file or directory
lib_alpha2/src/a2dump.cpp:31:19: error: cstring: No such file or directory
lib_alpha2/src/a2dump.cpp:32:19: error: cstdlib: No such file or directory


In the same folder if I create a file called x.c with these contents


// BTW, these imports Had angle brackets around them but forum is stripping // them, so they are shown with quotes here.
#include "math.h";
#include "unistd.h";
#include "stdlib.h";

int main(void) { return 0; }

The compile it

gcc++-4.0 x.c

It has no issues finding the same libraries.

I'm not familiar with using SCons. Seems to rely on Python.

I did note that it's using python here
platform: macosx-i386 python: /usr/pi/bin/python

This is an older version

Python 2.5.1 (r251:54863, May 27 2007, 10:54:54)
[GCC 4.0.1 (Apple Computer, Inc. build 5367)] on darwin

The Python version in my system path is
Python 2.7.1 (r271:86832, Jun 16 2011, 16:59:05)
[GCC 4.2.1 (Based on Apple Inc. build 5658) (LLVM build 2335.15.00)] on darwin
Type "help", "copyright", "credits" or "license" for more information.

Have you guys had any issues building on Lion?

Any ideas?

Thx.

Yes, this follows a tutorial that I found on the internet, can't remember which one. It seems they change how this folder is names, since it was named Developer-old for me. Glad you figured it out.

Unfortunately it seems a but more complicated since Apple seems to have gone to great lengths to remove gcc 4.0 options from Lion.

If you bump to 10.6 it wants gcc 4.2. If you do that then there are some unsupported compiler flags, etc. So looks like a bit more work to be done to support 4.2.

Anyway, I have some simple instructions now for Lion. I ran into another issue with ctags as well.

>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>
Building on Lion - NOTES

I've you upgraded from Snow Leopard and then installed XCode 4.1, Apple will have renamed your old /Developer folder to /Developer-3.2.6 or possibly /Developer-old

They also remove the symlinks to gcc 4.0 that you need in /usr/bin

I renamed my old Developer folder to /Developer_old which is what was in the build scripts for EigenD 1.4.5.

I recreated the following softlinks below
[Chaos-3:/usr/bin] chrislloyd% ls -la
lrwxr-xr-x 1 root wheel 30 Sep 16 14:34 g++-4.0 -> /Developer-old/usr/bin/g++-4.0
lrwxr-xr-x 1 root wheel 30 Sep 16 14:34 gcc-4.0 -> /Developer-old/usr/bin/gcc-4.0

In the EigenD source dist, check out the lines in the folowing files.

./tools/darwin_tools.py
self.Replace(MACOSXSDK='/Developer-old/SDKs/MacOSX10.4u.sdk')

select_tools.py
env.Replace(MACOSXSDK='/Developer-old/SDKs/MacOSX10.4u.sdk')

darwin_tools was not set to Developer_old and I got some link errors.

The last issue was that ctags step failed with some invalid commandline params.

if you simply set the PI_NOTAGS environment variable to something, it will skip this step as only needed for editors.

[Chaos-3:/Developer/SDKs] chrislloyd% echo $PI_NOTAGS
true

This is all a bit of a workaround, but it might save someone the hassle.

[edit] one more thing. I thought I could simply symlink the 10.4 SDK into the original location like so...
[Chaos-3:/Developer/SDKs] chrislloyd% sudo ln -s /Developer-old/SDKs/MacOSX10.4u.sdk/MacOSX10.4u.sdk

Doesn't work, dependencies are not properly resolved.

Chris

Thx Geert. Yeah I assumed that getting off 4.0 would be a big deal. I'm not worried about it.

I'm a bit amazed at how aggressively Apple is deprecating platforms though.

Thx for the instructions.

Ok, I uninstalled Xcode, installed Xcode 3, Installed Xcode 4, followed the symlink instructions available several places on the internet, and edited the select_tools.py script, changing Developer-old to Developer. It's finally building! :-) Really looking forward to hacking on EigenD.

Well, I'm now getting the error

g++-4.0: installation problem, cannot exec '/usr/bin/i686-apple-darwin10-g++-4.0.1': No such file or directory

That message is correct --- that version of g++ is found in /Developer-old/usr/bin

I'm VERY skeptical about polluting /usr/bin with old stuff from /Developer-old/usr/bin

Is there an alternative approach?

I appreciate the tip, barnone. However, if possible I really want to avoid creating symbolic links back into /usr/bin for the reasons above.

if I change the arguments for CXX and CC in darwin_tools.py to the new values below, compilation seems to proceed.

self.Replace(CXX='/Developer-old/usr/bin/i686-apple-darwin10-g++-4.0.1')
self.Replace(CC='/Developer-old/usr/bin/i686-apple-darwin10-gcc-4.0.1')

However, 100 files later, I'm getting errors in Juce. I think I have to go find the Steinberg VST SDK.

Well....at least I'm making progress :-)

OK --- last thing I had to do was Chris's suggestion of defining PI_NOTAGS to something and I now seem to have a fully built system.

Will try it later today if I can and hopefully I can figure out how to get that OSC agent working

Never mind --- forgot to change /Developer to /Developer-old

(sigh)