Changed a big script into separate named steps.

It makes the job log easier to navigate.

Also, Pull Requests don't need a Zip file.

.github/workflows/build-on-pull-request.yml

@@ -1,6 +1,6 @@
 name: Build Pull Request
 on: [pull_request]
-concurrency: 
+concurrency:
   group: ${{ github.workflow }}-${{ github.ref }}
   cancel-in-progress: true
 
@@ -8,11 +8,11 @@ jobs:
   build_linux:
     name: Build and Test (Linux)
     runs-on: ubuntu-latest
-    
+
     steps:
       - shell: bash
         run: git config --global core.autocrlf input
-      
+
       - name: Checkout Source
         uses: actions/checkout@v2
 
@@ -21,28 +21,35 @@ jobs:
         run: |
           sudo apt-get update
           sudo apt-get install linuxdoc-tools linuxdoc-tools-info binutils-mingw-w64-i686 gcc-mingw-w64-i686 sshpass
-          
-      - name: Build
-        id: build
+
+      - name: Build the tools.
         shell: bash
+        run: make -j2 bin USER_CFLAGS=-Werror
+      - name: Build the platform libraries.
+        shell: bash
+        run: make -j2 lib QUIET=1
+      - name: Run the regression tests.
+        shell: bash
+        run: make test QUIET=1
+      - name: Test that the samples can be built.
+        shell: bash
+        run: make -j2 samples
+      - name: Build the document files.
+        shell: bash
+        run: make -j2 doc
+      - name: Build 32-bit Windows versions of the tools.
         run: |
-          make -j2 bin USER_CFLAGS=-Werror
-          make -j2 lib QUIET=1
-          make test QUIET=1
-          make -j2 samples
           make -C src clean
           make -j2 bin USER_CFLAGS=-Werror CROSS_COMPILE=i686-w64-mingw32-
-          make -C samples clean
-          make -j2 doc zip
 
   build_windows:
     name: Build (Windows)
     runs-on: windows-latest
-    
+
     steps:
       - shell: bash
         run: git config --global core.autocrlf input
-      
+
       - name: Checkout Source
         uses: actions/checkout@v2
 
@@ -51,6 +58,6 @@ jobs:
 
       - name: Build app (debug)
         run: msbuild src\cc65.sln -t:rebuild -property:Configuration=Debug
-      
+
       - name: Build app (release)
         run: msbuild src\cc65.sln -t:rebuild -property:Configuration=Release