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Eric,
Before posting my questions, I *DID* download, print, and read the
"Universal Binary Programming Guidelines". But it did not answer ANY of
my questions!
For instance, regarding Rosetta and JNI libraries, the "Guidelines" states:
Rosetta does not run the following:
...
* Bundled Java applications or Java applications with JNI libraries that
can’t be translated
I took that as a very ambiguous statement. Obviously, bundled Java
applications, in general, WILL run on Mac OS X under Intel, because
Apple will port (or has already ported) the JVM and all required, system
level native libraries to Intel -- so no translation is required of Java
applications, bundled or not, by Rosetta. Of course, that applies to
"pure Java" applications, not ones like mine that have their own native
libraries. But the above statement also refers to "Java applications
with JNI libraries that can’t be translated" -- which CLEARLY (to me)
says that "some JNI libraries can be translated, and some cannot". But
which ones can and which ones can't?
Secondly, the "Universal Binary Programming Guidelines" talks
extensively about building an Xcode project to build a universal binary
for a Cocoa application. Nothing at all about Java! Or JNI libraries!
No mention of the GCC options needed to build a universal binary, either
-- the "Guidelines" are all written in terms of setting Xcode variables.
There is no description of what compiler options are actually
GENERATED by these variables! As I stated, I absolutely refuse to use
an "IDE". I run compilers and all other tools from the command-line, as
God intended. IDEs are VILE!
Bill
Eric Albert wrote:
In article <email@hidden>,
"William C. McCain" <email@hidden> wrote:
I develop and sell three products that run on Mac OS X. All three
products are written in Java and are distributed in the form of a Mac OS
X "bundled application". Obviously, the Java code will need no
conversion to run "natively" on Mac machines with Intel processors. But
all three products use my own JNI library, written in C, for serial I/O.
1. Will Rosetta automatically translate my "libserial.jnilib", which is
compiled for a PowerPC, when my products are run on an Intel-based Mac?
No. Java is not supported by Rosetta. This is mentioned in the Rosetta
section of the Universal Binary Programming Guidelines, which you can
find at <http://developer.apple.com/>.
2. If not, how do I convert "libserial.jnilib" to the "universal binary"
format? Do I simply recompile it with the latest GCC (4.0)? If so,
what GCC options must I specify to get a JNI-compatible "universal binary"?
Read the Universal Binary Programming Guidelines. Everything you need
to know about building universal binaries should be in there.
Hope this helps,
Eric
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