Re: [Openexr-devel] 1.6.0 OSX universal libraries not building

[Paul Schneider]

Hi, Ken,

I see this too, with the pre-packaged source from savannah.  If I  
checkout the source from CVS, I can still build universal.

Every invocation of libtool I see in make's output passes both -arch  
flags.  It also seems that the object files and the static libraries  
are being built universal, but the shared libraries are being built  
thin.  I notice that the shared libraries don't have the .dylib  
extension, like they do when I build from CVS.

spyhunter:~/Desktop/openexr-1.6.0 paul$ file IlmImf/.libs/ 
ImfIntAttribute.o
IlmImf/.libs/ImfIntAttribute.o: Mach-O universal binary with 2  
architectures
IlmImf/.libs/ImfIntAttribute.o (for architecture ppc):  Mach-O object  
ppc
IlmImf/.libs/ImfIntAttribute.o (for architecture i386): Mach-O object  
i386

spyhunter:~/Desktop/openexr-1.6.0 paul$ file IlmImf/.libs/libIlmImf.a
IlmImf/.libs/libIlmImf.a: Mach-O universal binary with 2 architectures
IlmImf/.libs/libIlmImf.a (for architecture ppc):        current ar  
archive random library
IlmImf/.libs/libIlmImf.a (for architecture i386):       current ar  
archive random library

spyhunter:~/Desktop/openexr-1.6.0 paul$ file IlmImf/.libs/libIlmImf.6
IlmImf/.libs/libIlmImf.6: Mach-O dynamically linked shared library i386

When building the source directly from CVS, I get:

spyhunter:~/src/OpenExr paul$ file IlmImf/.libs/libIlmImf.6.dylib
IlmImf/.libs/libIlmImf.6.dylib: Mach-O universal binary with 2  
architectures
IlmImf/.libs/libIlmImf.6.dylib (for architecture ppc):  Mach-O  
dynamically linked shared library ppc
IlmImf/.libs/libIlmImf.6.dylib (for architecture i386): Mach-O  
dynamically linked shared library i386

I'll see if I can track this down.  Can you use the source from CVS  
in the meantime as a workaround?

- Paul


On Aug 7, 2007, at 6:49 AM, Ken McGaugh wrote:

> I'm trying to build the new 1.6.0 libraries under OSX as universal  
> binaries.  Following the
> instructions I ran configure this way:
>
>     ./configure --enable-osx-universal-binaries --disable- 
> dependency-tracking
>
> Then when I run make to build the libraries it all seems to be  
> working correctly until libtool
> is called to build a final shared library.  It seems that libtool  
> isn't passing the following flags
> along to the compiler:
>
>     -isysroot /Developer/SDKs/MacOSX10.4u.sdk -arch ppc -arch i386
>
> Can anybody else confirm this?
>
> Thanks.
> --Ken
>
>
>
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