[GRASS-dev] build problems on Mac OS X 10.5.2.

[William Kyngesburye]

On May 8, 2008, at 9:26 PM, John Kern wrote:

> Hello,
>
> I am trying to build Grass from source on Leopard(Mac OS X 10.5.2  
> with gcc 4.0.1).
>
> While PROJ.4 built and installed without problem,  configure failed  
> for GRASS proper. The resulting error is ...
> "checking External PROJ.4 version... configure: error: *** Could not  
> determine External PROJ.4 version."
>
> Consider this line from the trace output of the configure script.
>
> + eval echo configure:6910: '"${CC-cc}' -o conftest '$CFLAGS'  
> '$CPPFLAGS' '$LDFLAGS' 'conftest.$ac_ext' '$LIBS' '1>&5"'
> ++ echo configure:6910: 'gcc -o conftest.dSYM -g -O2       
> conftest.c  1>&5'
>
> The dSYM file extension on the output file is the critical bit. If  
> the output file ends with a dSYM file extension, only supporting  
> data is generated. No executable. (see example below). I worked  
> around the problem by deleting references to ${ac_exeext}.  What's  
> the right fix for the configure script? Apparently there is a  
> supporting script to autoconf which needs to be updated, right?
>
These dSYM errors don't necessarily mean there is something wrong with  
configure.  When configure is testing for things and they fail, a dSYM  
error is more likely a symptom of that failure, not a bug in configure.

I have seen some problems when compiling with debug symbols (-g) on  
Leopard.  I usually force my own CFLAGS so rarely run into this.  Try  
setting CFLAGS and CXXFLAGS to "-Os" before running configure.

Another note: you will probably run into a libGL linking problem if  
you are using Xcode 3.0.  This has been fixed in the Xcode 3.1 beta,  
so I recommend installing that - it's included for now in the iPhone  
SDK beta.  The -g issue may also be fixed in Xcode 3.1, I haven't  
tried that yet.


See the macosx/ReadMe.rtf for all my current OSX notes (hmm, I don't  
have the -g issue in there).

-----
William Kyngesburye <kyngchaos*at*kyngchaos*dot*com>
http://www.kyngchaos.com/

Earth: "Mostly harmless"

- revised entry in the HitchHiker's Guide to the Galaxy