README: improve instructions for building from Windows

Clarify that builds can run from Linux or Windows and that the sample command uses PowerShell and not cmd.exe syntax. Fix syntax error substituting PWD variable in PowerShell. Fixes: #181 Signed-off-by: Benjamin Gilbert <[email protected]>
openslide · Nov 10, 2023 · daea832 · daea832
1 parent 41c18d5
commit daea832
Showing 1 changed file with 4 additions and 3 deletions.
diff --git a/README.md b/README.md
@@ -6,10 +6,11 @@ of its dependencies, using MinGW-w64.
 ## Building
 
 The `builder/windows` directory defines a container image with the
-dependencies needed to run the build script.  To pull the container image
-and use it to run a build:
+dependencies needed to run the build script.  On Linux, or in Windows
+PowerShell with WSL 2, you can pull the container image and use it to run a
+build:
 
-    docker run -ti --rm -v $PWD:/work -w /work \
+    docker run -ti --rm -v ${PWD}:/work -w /work \
         ghcr.io/openslide/winbuild-builder ./build.sh bdist
 
 ## Substitute Sources