Java Reference
In-Depth Information
And on Unix:
$
export JAVAHOME=/local/java
# or wherever
$
cc -I$JAVAHOME/include -I$JAVAHOME/include/solaris \
-G HelloJni.c -o libhello.so
Example 24-11
is a makefile for Unix.
Example 24-11. Unix makefile
# Makefile for the 1.1 Java Native Methods examples for
# Java Cookbook, originally for Learning Tree International Course 471/478.
# Tested on Solaris both with "gcc" and with SunSoft "cc".
# Tested on OpenBSD with native port "devel/jdk/1.2" and cc.
# On other platforms it will certainly need some tweaking; please
# let me know how much! :-)
# Ian Darwin, http://www.darwinsys.com
# Configuration Section
CFLAGS_FOR_SO = -G # Solaris
CFLAGS_FOR_SO = -shared
CSRCS = HelloJni.c
# JAVA_HOME should be been set in the environment
#INCLUDES = -I$(JAVA_HOME)/include -I$(JAVAHOME)/include/solaris
#INCLUDES = -I$(JAVA_HOME)/include -I$(JAVAHOME)/include/openbsd
INCLUDES = -I$(JAVA_HOME)/include
all: testhello testjavafromc
# This part of the Makefile is for C called from Java, in HelloJni
testhello: hello.all
@echo
@echo "Here we test the Java code \"HelloJni\" that calls C code."
@echo
LD_LIBRARY_PATH=`pwd`:. java HelloJni
hello.all: HelloJni.class libhello.so
HelloJni.class: HelloJni.java
javac HelloJni.java
HelloJni.h: HelloJni.class
javah -jni HelloJni
