Re: Example on JNI compilation
Ralf Wildenhues wrote: Hello, * LCID Fire wrote on Sat, Apr 18, 2009 at 11:08:58PM CEST: I'm currently stuck with compiling a JNI library, which java does not recognize. I'm not too sure about what options I have to provide to automake and which are already builtin. Does anybody know an example of how a jni lib is built using automake? How would one go about doing it without automake? Like this: gcc -c -fPIC myfile.c -o myfile.o gcc -shared -lacl -Wl,-soname,mylib.so -o mylib.so myfile.o
Re: Example on JNI compilation
* LCID Fire wrote on Mon, Apr 20, 2009 at 07:58:50PM CEST: Ralf Wildenhues wrote: * LCID Fire wrote on Sat, Apr 18, 2009 at 11:08:58PM CEST: I'm currently stuck with compiling a JNI library, which java does not recognize. I'm not too sure about what options I have to provide to automake and which are already builtin. Does anybody know an example of how a jni lib is built using automake? How would one go about doing it without automake? Like this: gcc -c -fPIC myfile.c -o myfile.o gcc -shared -lacl -Wl,-soname,mylib.so -o mylib.so myfile.o I can't see anything JNI'ish or java'ish in the above, so, assuming mylib.so is destined for $(pkglibdir), pkglib_LTLIBRARIES = mylib.la mylib_la_SOURCES = myfile.c mylib_la_LDFLAGS = -module -avoid-version mylib_la_LIBADD = -lacl or I am still missing something that I haven't understood from your request. Cheers, Ralf
Re: Example on JNI compilation
On 4/18/2009 3:08 PM, LCID Fire wrote: I'm currently stuck with compiling a JNI library, which java does not recognize. I'm not too sure about what options I have to provide to automake and which are already builtin. Does anybody know an example of how a jni lib is built using automake? There are basically two steps to building JNI libraries: 1. Use the javah utility to generate JNI prototypes in C-language header files from your Java source code. 2. Compile the C-language JNI sources (including the headers generated in step 1) into a library. Step 1 above is pure Java-speak, and Automake has little built-in functionality for it. Step 2, however is pure gcc, and Automake has no trouble with it. For an example of how to integrate javah operations into Makefile.am so you can do it all from Automake, see Chapter 6 of this online book at freesoftwaremagazine.com: http://www.freesoftwaremagazine.com/books/agaal/autotools_example Search for the text, Building the JNI C++ sources. Regards, John
Re: Example on JNI compilation
Am Samstag 18 April 2009 23:08:58 schrieb LCID Fire: I'm currently stuck with compiling a JNI library, which java does not recognize. I'm not too sure about what options I have to provide to automake and which are already builtin. Does anybody know an example of how a jni lib is built using automake? Hi, in my project: http://libmsgque.sourceforge.net/ you can find a implementation useable as template 1. download the sources 2. go into the javamsgque directory 3. don't forget to add the autoconf macros for JNI from the m4 subdirectory and the acinclude.m4 file mfg Andreas Otto
Re: Example on JNI compilation
Hello, * LCID Fire wrote on Sat, Apr 18, 2009 at 11:08:58PM CEST: I'm currently stuck with compiling a JNI library, which java does not recognize. I'm not too sure about what options I have to provide to automake and which are already builtin. Does anybody know an example of how a jni lib is built using automake? How would one go about doing it without automake? Cheers, Ralf
