actually getting something to compile and run

git-svn-id: https://svn.apache.org/repos/asf/maven/maven-1/plugins/trunk@113211 13f79535-47bb-0310-9956-ffa450edef68

native/samples/helloworld/src/unix/HelloWorldImp.c

@@ -0,0 +1,15 @@
+#include <stdio.h>
+#include <stdlib.h>
+#include <jni.h>
+#include "org_apache_maven_natives_sample_helloworld_HelloWorld.h"
+
+JNIEXPORT void JNICALL 
+Java_org_apache_maven_natives_sample_helloworld_HelloWorld_displayHelloWorld(JNIEnv *env, jobject obj) 
+{
+  char *home;
+  printf("Helloworld from Java JNI\n");
+  home = getenv ("HOME");
+  printf("HOME = %s\n", (home) ? home : "(NULL)");
+  return;
+}
+