update build commands in readme

1 files changed, 14 insertions, 13 deletions

diff --git a/readme.md b/readme.md
index f09c947..8ce6d78 100644
--- a/readme.md
+++ b/readme.md
@@ -19,28 +19,29 @@ building instructions.
 ## Installing libraries
 
 The expected library (source) versions are included in this repository as git
-submodules. Follow these steps for manually building one of the required
-libraries from source:
+submodules, which may be used if your distro's package manager does not provide
+(recent enough versions of) them. To build any of the dependencies, make sure
+the submodules are initialized by running:
 
-1. Ensure the git submodules are initialized:
-   ```
-   $ git submodule update --init --recursive --depth 1
-   ```
-2. `cd` into the library source folder:
+```
+$ git submodule update --init --recursive --depth 1
+```
+
+Then, follow these steps for each library you want to install:
+
+1. Change into the library folder (run **one** of these):
    ```
    $ cd lib/googletest
-   or
    $ cd lib/sdl2
-   or
    $ cd lib/soloud/contrib
-   or
    $ cd lib/sdl_image
    ```
-3. Configure the build, run the build and install:
+2. Use CMake to configure the build, run the build and install (run **all** of
+   these):
    ```
    $ cmake -B build -G Ninja
-   $ ninja -C build
-   # ninja -C build install
+   $ cmake --build build
+   # cmake --install build
    ```
 
 ## Documentation