Merge pull request #47 from OSVR/apparent-typo-fix

Fix an apparent typo involved in detecting toolchains.
diff --git a/android.toolchain.cmake b/android.toolchain.cmake
index 8cc6551..ffa2612 100644
--- a/android.toolchain.cmake
+++ b/android.toolchain.cmake
@@ -598,7 +598,7 @@
  endif()
  if( NOT __availableToolchains )
   file( GLOB __availableToolchainsLst RELATIVE "${ANDROID_NDK_TOOLCHAINS_PATH}" "${ANDROID_NDK_TOOLCHAINS_PATH}/*" )
-  if( __availableToolchains )
+  if( __availableToolchainsLst )
    list(SORT __availableToolchainsLst) # we need clang to go after gcc
   endif()
   __LIST_FILTER( __availableToolchainsLst "^[.]" )