update build system

* proper prototype for a function, decreases warnings

Author: mulle-nat

.github/workflows/mulle-sde-ci.yml

@@ -3,7 +3,7 @@ name: CI
 on:
   push:
     branches:
-      - release
+      - master
   pull_request:
   workflow_dispatch:
 
@@ -31,7 +31,7 @@ jobs:
     - name: Dump Environment
       run:  env | sort
 
-    - uses: actions/checkout@v3
+    - uses: actions/checkout@v4
 
     - uses: mulle-sde/github-ci@v1
 

.gitignore

@@ -73,3 +73,4 @@ coverage*.html
 *.gcno
 *-preview-*.html
 cola/wilted/
+cmake-build-*/