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Re: translating a build script for JNI for linux to JNI for OS X

On 25/08/2008, at 9:08 PM, Stephyn Butcher wrote: 
However, I cannot even begin to figure out how to make this work on OS
X. I have the following command:

echo compiling JNI wrapper
g++ -O3 -DNDEBUG -feliminate-unused-debug-symbols -fpic -s -shared -o
libjsmile.so ../*.cpp -I$JINC -I$JINC/linux -I../cppsmile -L../
cppsmile -lsmilearn -lsmile

and I don't know how to translate it into OS X speak.

As they say, RTFM, which in this case can be found at http://developer.apple.com/unix/ and particularly
http://developer.apple.com/documentation/Porting/Conceptual/PortingUnix/intro/chapter_1_section_1.html

Stuff you need to watch on that command line:
-shared becomes -dynamiclib
-fpic is redundant but should not cause a problem
-o libjsmile.so needs to be -o libjsmile.jnilib (normal shared libraries are ,dylib)

If you want multi-architecture binaries, you will need some -arch options - say '-arch i386 -arch x86_64 -arch ppc' you may also need to point system root at an appropriate SDK.

I$JINC -I$JINC/linux - I would have thought that $JINC should be a path to some header directory.

There are also the excellent O'Reilly books "MacOS X ........ for UNIX Geeks". I don't know if the Leopard one is out yet.

Cheers
Bill Northcott
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