adding PREFIX_PATH env vsr to build script

[ROCm/roctracer commit: 975656ef09]

projects/roctracer/build.sh

@@ -17,6 +17,7 @@ if [ -z "$HCC_HOME" ] ; then export HCC_HOME="$ROCM_PATH/hcc"; fi
 if [ -z "$BUILD_TYPE" ] ; then BUILD_TYPE="release"; fi
 if [ -z "$PACKAGE_ROOT" ] ; then PACKAGE_ROOT=$ROCM_PATH; fi
 if [ -z "$PACKAGE_PREFIX" ] ; then PACKAGE_PREFIX="$ROCM_PATH/$COMPONENT"; fi
+if [ -z "$PREFIX_PATH" ] ; then PREFIX_PATH=$PACKAGE_ROOT; fi
 
 ROCTRACER_ROOT=$(cd $ROCTRACER_ROOT && echo $PWD)
 MAKE_OPTS="-j 8 -C $BUILD_DIR"
@@ -27,7 +28,7 @@ pushd $BUILD_DIR
 cmake \
     -DCMAKE_MODULE_PATH=$ROCTRACER_ROOT/cmake_modules \
     -DCMAKE_BUILD_TYPE=$BUILD_TYPE \
-    -DCMAKE_PREFIX_PATH="$PACKAGE_ROOT" \
+    -DCMAKE_PREFIX_PATH="$PREFIX_PATH" \
     -DCMAKE_INSTALL_PREFIX=$PACKAGE_ROOT \
     -DCPACK_PACKAGING_INSTALL_PREFIX=$PACKAGE_PREFIX \
     -DCPACK_GENERATOR="DEB;RPM" \