Update cross-building.md

Commit migrated from https://github.com/dotnet/coreclr/commit/3de3ad5792922657efb9438ebdb87a501b5c457b

diff --git a/docs/coreclr/building/cross-building.md b/docs/coreclr/building/cross-building.md
index ba26867..ab5897a 100644 (file)
--- a/docs/coreclr/building/cross-building.md
+++ b/docs/coreclr/building/cross-building.md
@@ -48,11 +48,11 @@ Once the rootfs has been generated, it will be possible to cross compile CoreCLR
 
 So, without `ROOTFS_DIR`:
 
-    ben@ubuntu ~/git/coreclr/ $ ./build.sh arm debug verbose clean cross
+    ben@ubuntu ~/git/coreclr/ $ ./build.sh arm debug verbose cross -rebuild
 
 And with:
 
-    ben@ubuntu ~/git/coreclr/ $ ROOTFS_DIR=/home/ben/coreclr-cross/arm ./build.sh arm debug verbose clean cross
+    ben@ubuntu ~/git/coreclr/ $ ROOTFS_DIR=/home/ben/coreclr-cross/arm ./build.sh arm debug verbose cross -rebuild
 
 As usual the resulting binaries will be found in `bin/Product/BuildOS.BuildArch.BuildType/`
 
@@ -84,7 +84,7 @@ The following instructions assume you are on a Linux machine such as Ubuntu 14.0
 To build mscorlib for Linux, run the following command:
 
 ```
-    lgs@ubuntu ~/git/coreclr/ $ build.sh arm debug clean verbose   
+    lgs@ubuntu ~/git/coreclr/ $ build.sh arm debug verbose -rebuild
 ```
 
 The output is at bin/Product/<BuildOS>.arm.Debug/mscorlib.dll.