Do not hardcode the version number in the build workflow.

To run the build workflow, we need to know the current version number
(since the name of the source distribution archive includes it). Instead
of hardcoding, try getting it from the configure.ac script, and pass it
to the jobs/steps that need it.

Author: gouttegd

.github/workflows/build.yml

@@ -11,9 +11,14 @@ jobs:
   build_linux:
     name: Build the source distribution
     runs-on: ubuntu-latest
+    outputs:
+      odkrun_version: ${{ steps.find_version.outputs.odkrun_version }}
     steps:
       - name: Check out the repository
         uses: actions/checkout@v4
+      - id: find_version
+        name: Determine current version
+        run: sed -E -e 's/^AC_INIT\(\[ODK Runner\], \[(.*)\],/odkrun_version=\1/;q' configure.ac >> "$GITHUB_OUTPUT"
       - name: Generate the build system
         run: autoreconf --install
       - name: Configure the distribution
@@ -24,7 +29,7 @@ jobs:
         uses: actions/upload-artifact@v4
         with:
           name: source_dist
-          path: odkrun-0.4.1.tar.gz
+          path: odkrun-${{ steps.find_version.outputs.odkrun_version }}.tar.gz
 
   build_macos:
     name: Build for macOS
@@ -37,8 +42,8 @@ jobs:
           name: source_dist
       - name: Build
         run: |
-          tar xf odkrun-0.4.1.tar.gz
-          cd odkrun-0.4.1
+          tar xf odkrun-${{ needs.build_linux.outputs.odkrun_version }}.tar.gz
+          cd odkrun-${{ needs.build_linux.outputs.odkrun_version }}
           ./configure
           make
 
@@ -57,7 +62,7 @@ jobs:
           name: source_dist
       - name: Build
         run: |
-          tar xf odkrun-0.4.1.tar.gz
-          cd odkrun-0.4.1
+          tar xf odkrun-${{ needs.build_linux.outputs.odkrun_version }}.tar.gz
+          cd odkrun-${{ needs.build_linux.outputs.odkrun_version }}
           ./configure --host=x86_64-w64-mingw32
           make