From e2da053329c3cb6172c7323d86e74b2c879fbfbd Mon Sep 17 00:00:00 2001
From: knielsen <knielsen@13f79535-47bb-0310-9956-ffa450edef68>
Date: Fri, 28 Mar 2003 09:08:22 +0000
Subject: [PATCH] Don't run javah unless any file has a native method

git-svn-id: https://svn.apache.org/repos/asf/maven/maven-1/plugins/trunk@113212 13f79535-47bb-0310-9956-ffa450edef68
---
 native/plugin.jelly | 13 +++++++++++++
 1 file changed, 13 insertions(+)

diff --git a/native/plugin.jelly b/native/plugin.jelly
index b4477b4e..9322b774 100644
--- a/native/plugin.jelly
+++ b/native/plugin.jelly
@@ -55,6 +55,18 @@
 				</patternset>
 			</fileset>
 		</fileScanner>
+
+  		    <j:set var="compileJNI" value="false"/>
+			<j:forEach var="file" items="${classFiles.iterator()}">
+				<j:set var="clazz" value="${javaSourceTool.getBcelClass(file.toString())}"/>
+				<j:forEach var="method" items="${clazz.getMethods()}">
+					<j:if test="${method.isNative() == 'true'}">
+						<j:set var="compileJNI" value="true"/>
+					</j:if>
+				</j:forEach>
+			</j:forEach>
+
+	<j:if test="${compileJNI == 'true'}">
 		<mkdir dir="${maven.build.dir}/native/jni"/>
 		<javah destdir="${maven.build.dir}/native/jni">
 			<classpath>
@@ -74,5 +86,6 @@
 				</j:if>
 			</j:forEach>
 		</javah>
+      </j:if>
 	</goal>
 </project>