unify build conditions

.github/workflows/linux.yml

@@ -10,18 +10,27 @@ env:
 
 jobs:
 
+  prepare-build-matrix:
+    runs-on: ubuntu-latest
+    outputs:
+      archs: ${{ steps.matrix-vars.outputs.ARCHS }}
+      types: ${{ steps.matrix-vars.outputs.TYPES }}
+    steps:
+
+      - name: Calculate matrix variables
+        id: matrix-vars
+        run: |
+          echo ARCHS=[\"$BUILD_ARCHS\"] | sed 's| |","|g' >> "$GITHUB_OUTPUT"
+          echo TYPES=[\"$BUILD_TYPES\"] | sed 's| |","|g' >> "$GITHUB_OUTPUT"
+          cat "$GITHUB_OUTPUT"
+
   build-bin:
     runs-on: ubuntu-latest
+    needs: prepare-build-matrix
     strategy:
       matrix:
-        arch: [aarch64, armel, armhf, i686, mipseb, mipsel, ppc500, ppc6xx, riscv64, x86_64]
-        type: [release, debug]
-        build-only-release: 
-          - ${{ github.ref_name != 'develop' && github.ref_name != 'main' }}
-        exclude:
-          - build-only-release: true
-            type: debug
-
+        arch: ${{ fromJSON(needs.prepare-build-matrix.outputs.archs) }}
+        type: ${{ fromJSON(needs.prepare-build-matrix.outputs.types) }}
     steps:
 
     - name: Checkout