Forgot popd

v8pp/build-v8.sh

 # I guess now we have to install ninja ourselves.. sigh..
 git clone https://github.com/ninja-build/ninja.git
 pushd ninja
-git checkout v1.11.1
+    git checkout v1.11.1
 
-cmake -Bbuild-cmake
-cmake --build build-cmake
-export PATH=`pwd`/build-cmake:"$PATH"  # ninja available now
+    cmake -Bbuild-cmake
+    cmake --build build-cmake
+
+    export PATH=`pwd`/build-cmake:"$PATH"  # ninja available now
+
+popd
 
 export PATH=`pwd`/depot_tools:"$PATH"  # depot tools available now (used to include ninja)