Update to freebsd-instructions.md

Added note specifically calling out the need to add the clang version to the build command.

diff --git a/Documentation/building/freebsd-instructions.md b/Documentation/building/freebsd-instructions.md
index 11d890de2c3df29b38365066960e399cb4fd0a7f..17a34842f536b5e697d93523bd256d2fec37f436 100644 (file)
--- a/Documentation/building/freebsd-instructions.md
+++ b/Documentation/building/freebsd-instructions.md
@@ -265,3 +265,10 @@ To install clang development snapshot: `sudo pkg install llvm-devel`
 clang35 and clang36 download llvm35 and llvm36 packages as a dependency. 
 
 llvm37 and llvm-devel include clang and lldb. Since clang is included with llvm 3.7 and onward, there is no clang37 package.
+
+After you have installed your desired version of LLVM you will need to specify the version to the build.sh script.
+
+For eaxample if you chose to install llvm37 you would add the clangX.X to your build command as follows.
+```sh
+janhenke@freebsd-frankfurt:~/git/coreclr % ./build.sh clang3.7
+```