CMake: control static/shared the normal CMake way.

cmake/cmake_build

Index: cmake/cmake_build
diff --git a/cmake/cmake_build b/cmake/cmake_build
index f2cb9bf1bf33a43618331337fc362462ab941d39..956f1a44b5b12c6520923cb02bc47e2e5e0d0394 100755
--- a/cmake/cmake_build
+++ b/cmake/cmake_build
@@ -25,9 +25,18 @@ pushd $here/../third_party/externals/cmake
 make -j $cores cmake
 popd
 
-echo "Building with bootstrapped CMake"
+echo "Building static library with bootstrapped CMake"
 mkdir -p $SKIA_OUT/$BUILDTYPE
 pushd $SKIA_OUT/$BUILDTYPE
-$here/../third_party/externals/cmake/bin/cmake -DCMAKE_BUILD_TYPE=$BUILDTYPE $here -G Ninja
+$here/../third_party/externals/cmake/bin/cmake -DCMAKE_BUILD_TYPE=$BUILDTYPE \
+    $here -G Ninja
+ninja
+popd
+
+echo "Building shared library with bootstrapped CMake"
+mkdir -p $SKIA_OUT/$BUILDTYPE
+pushd $SKIA_OUT/$BUILDTYPE
+$here/../third_party/externals/cmake/bin/cmake -DCMAKE_BUILD_TYPE=$BUILDTYPE -DBUILD_SHARED_LIBS=1 \
+    $here -G Ninja
 ninja
 popd