diff --git a/com.ibm.wala.cast.test/build.gradle b/com.ibm.wala.cast.test/build.gradle
index 439d6d8cc..cf293a2b1 100644
--- a/com.ibm.wala.cast.test/build.gradle
+++ b/com.ibm.wala.cast.test/build.gradle
@@ -61,10 +61,13 @@ model {
 					buildable = false
 				}
 				all {
-					// TODO: compute path on following line from 'cast' library properties somehow
-					linker.args '-Wl,-rpath', "${project(':com.ibm.wala.cast').buildDir}/libs/cast/shared"
-					// TODO: compute path on following line from 'jdk' library properties somehow
-					linker.args '-Wl,-rpath', "${currentJvm.javaHome}/jre/lib/amd64/server"
+					switch ("$targetPlatform.operatingSystem.name/$targetPlatform.architecture.name") {
+						case 'linux/x86-64':
+							// TODO: compute path on following line from 'cast' library properties somehow
+							linker.args '-Wl,-rpath', "${project(':com.ibm.wala.cast').buildDir}/libs/cast/shared"
+							// TODO: compute path on following line from 'jdk' library properties somehow
+							linker.args '-Wl,-rpath', "${currentJvm.javaHome}/jre/lib/amd64/server"
+					}
 				}
 			}
 		}
@@ -79,10 +82,13 @@ model {
 				}
 			}
 			binaries.all {
-				// TODO: compute path on following line from 'cast' library properties somehow
-				linker.args '-Wl,-rpath', "${project(':com.ibm.wala.cast').buildDir}/libs/cast/shared"
-				// TODO: compute path on following line from 'jdk' library properties somehow
-				linker.args '-Wl,-rpath', "${currentJvm.javaHome}/jre/lib/amd64/server"
+					switch ("$targetPlatform.operatingSystem.name/$targetPlatform.architecture.name") {
+						case 'linux/x86-64':
+							// TODO: compute path on following line from 'cast' library properties somehow
+							linker.args '-Wl,-rpath', "${project(':com.ibm.wala.cast').buildDir}/libs/cast/shared"
+							// TODO: compute path on following line from 'jdk' library properties somehow
+							linker.args '-Wl,-rpath', "${currentJvm.javaHome}/jre/lib/amd64/server"
+					}
 			}
 		}
 	}
diff --git a/com.ibm.wala.cast/build.gradle b/com.ibm.wala.cast/build.gradle
index aa26fc59f..78355107e 100644
--- a/com.ibm.wala.cast/build.gradle
+++ b/com.ibm.wala.cast/build.gradle
@@ -70,8 +70,11 @@ model {
 				lib library: 'jdk'
 			}
 			binaries.all {
-				// TODO: compute path on following line from 'jdk' library properties somehow
-				linker.args '-Wl,-rpath', "$currentJavaHome/jre/lib/amd64/server"
+				switch ("$targetPlatform.operatingSystem.name/$targetPlatform.architecture.name") {
+					case 'linux/x86-64':
+						// TODO: compute path on following line from 'jdk' library properties somehow
+						linker.args '-Wl,-rpath', "$currentJavaHome/jre/lib/amd64/server"
+				}
 			}
 		}
 	}