Add build workflow (to finish)

.github/workflows/build_tests.yml

@@ -0,0 +1,44 @@
+name: Dreamos Build
+
+on:
+  push:
+    branches: [ fix_psf_makefile ]
+  pull_request:
+    branches: [ fix_psf_makefile ]
+
+jobs:
+  build-dreamos:
+
+    runs-on: ubuntu-latest
+
+    steps:
+
+    - name: Prepare cache for binaries
+      uses: actions/cache@v2
+      id: cached-binaries
+      with:
+        path: |
+          **/gcc-x86_64-cross
+
+    - name: Install llvm and clang
+      run: sudo apt install lld llvm
+
+    - name: Download gcc
+      if: steps.cached-compiler-binaries.outputs.cache-hit != 'true'
+      run: >
+        mkdir toolchains
+        wget https://toolchains.bootlin.com/downloads/releases/toolchains/x86-64/tarballs/x86-64--glibc--stable-2022.08-1.tar.bz2 -O toolchains/gcc-x86_64;
+        cd toolchains;
+        tar -vxf gcc-x86_64; mv x86-64--glibc--stable-2022.08-1 gcc-x86_64-cross;
+
+    - uses: actions/checkout@v2
+      with:
+        path: dreamos
+
+    - name: Compile with gcc
+      run: |
+        cd dreamos;
+        ls;
+        make clean
+
+

.github/workflows/c-cpp.yml

@@ -1,4 +1,4 @@
-name: C/C++ CI
+name: Dreamos Tests
 
 on:
   push: