Hi Tom - There is a quirk when using the JNI Invocation API on Cygwin (non-invocation JNI works as expected). The solution is documented nicely at the excellent JNI-on-Cygwin webpage: http://www.inonit.com/cygwin/. You can also download some sample JNI code, including both invocation- and non-invocation-code at http://www.whitecaps.net/jni/expr.jar.
Alan Thompson At 04:21 PM 6/5/2003 -0500, Thomas X. Hoban wrote: >I have written a DLL and a test program that uses the JNI api to invoke a >JVM. When I try to link with a test program, I get an error indicating that >a reference to [EMAIL PROTECTED] is undefined. > >$ export JAVA_HOME=/cygdrive/c/j2sdk1.4.1_02 >$ g++ -c �I$JAVA_HOME/include �I$JAVA_HOME/include/win32 JavaGateway.c++ >$ g++ -I$JAVA_HOME/include �I$JAVA_HOME/include/win32 �L$JAVA_HOME/lib \ >-ljvm JavaGateway.o -o testGateway testGateway.c++ > >The link command above produces these errors: > >JavaGateway.o(.text+0x171):JavaGateway.c++: undefined reference to >[EMAIL PROTECTED]' >JavaGateway.o(.text+0x251):JavaGateway.c++: undefined reference to >[EMAIL PROTECTED]' >collect2: ld returned 1 exit status > >I assume that the jvm.lib file provided with the sdk was compiled with MS >VC++. Does the cygwin gcc compiler massage the symbol references >differently from MS? Does anyone have a suggestion on how I can make this >work? > >Thanks, > >Tom -- Unsubscribe info: http://cygwin.com/ml/#unsubscribe-simple Problem reports: http://cygwin.com/problems.html Documentation: http://cygwin.com/docs.html FAQ: http://cygwin.com/faq/
