Allow re-targeting of naclports install

libraries/OpenSceneGraph-2.9.7/nacl-OpenSceneGraph-2.9.7.sh

Index: libraries/OpenSceneGraph-2.9.7/nacl-OpenSceneGraph-2.9.7.sh
diff --git a/libraries/OpenSceneGraph-2.9.7/nacl-OpenSceneGraph-2.9.7.sh b/libraries/OpenSceneGraph-2.9.7/nacl-OpenSceneGraph-2.9.7.sh
index e65a94afb9b8e8c5b35987bbdff9242cc51ea209..afeddf25fe1d20f85bcc3234e15d89425dcc5330 100755
--- a/libraries/OpenSceneGraph-2.9.7/nacl-OpenSceneGraph-2.9.7.sh
+++ b/libraries/OpenSceneGraph-2.9.7/nacl-OpenSceneGraph-2.9.7.sh
@@ -51,19 +51,19 @@ CustomConfigureStep() {
 }
 
 CustomInstallStep() {
-  Remove ${NACL_SDK_USR_INCLUDE}/osg
-  Remove ${NACL_SDK_USR_INCLUDE}/osgUtil
-  Remove ${NACL_SDK_USR_INCLUDE}/OpenThreads
+  Remove ${NACLPORTS_INCLUDE}/osg
+  Remove ${NACLPORTS_INCLUDE}/osgUtil
+  Remove ${NACLPORTS_INCLUDE}/OpenThreads
   readonly THIS_PACKAGE_PATH=${NACL_PACKAGES_REPOSITORY}/${PACKAGE_NAME}
-  cp -R include/osg ${NACL_SDK_USR_INCLUDE}/osg
-  cp -R include/osgUtil ${NACL_SDK_USR_INCLUDE}/osgUtil
-  cp -R include/OpenThreads ${NACL_SDK_USR_INCLUDE}/OpenThreads
-  Remove ${NACL_SDK_USR_LIB}/libosg.a
-  Remove ${NACL_SDK_USR_LIB}/libosgUtil.a
-  Remove ${NACL_SDK_USR_LIB}/libOpenThreads.a
-  install -m 644 ${LIB_OSG} ${NACL_SDK_USR_LIB}/${LIB_OSG}
-  install -m 644 ${LIB_OSGUTIL} ${NACL_SDK_USR_LIB}/${LIB_OSGUTIL}
-  install -m 644 ${LIB_OPENTHREADS} ${NACL_SDK_USR_LIB}/${LIB_OPENTHREADS}
+  cp -R include/osg ${NACLPORTS_INCLUDE}/osg
+  cp -R include/osgUtil ${NACLPORTS_INCLUDE}/osgUtil
+  cp -R include/OpenThreads ${NACLPORTS_INCLUDE}/OpenThreads
+  Remove ${NACLPORTS_LIBDIR}/libosg.a
+  Remove ${NACLPORTS_LIBDIR}/libosgUtil.a
+  Remove ${NACLPORTS_LIBDIR}/libOpenThreads.a
+  install -m 644 ${LIB_OSG} ${NACLPORTS_LIBDIR}/${LIB_OSG}
+  install -m 644 ${LIB_OSGUTIL} ${NACLPORTS_LIBDIR}/${LIB_OSGUTIL}
+  install -m 644 ${LIB_OPENTHREADS} ${NACLPORTS_LIBDIR}/${LIB_OPENTHREADS}
   DefaultTouchStep
 }