Separate out valgrind github action.

.github/workflows/make_actions.yml

@@ -54,23 +54,3 @@ jobs:
 
     - name: test examples
       run: ${{ matrix.make_flags }} make examples V=1
-
-  valgrind:
-    name:
-      Test for memory leaks with valgrind
-    runs-on: ubuntu-latest
-    env:
-      CC: gcc
-
-    steps:
-    - uses: actions/checkout@v2
-
-    - name: Install dependencies
-      run: |
-        python -m pip install --upgrade pip
-        pip install pytest
-        sudo apt-get -y install valgrind
-        sudo apt-get -y install zlib1g-dev
-
-    - name: test valgrind
-      run: ${{ matrix.make_flags }} make test_valgrind V=1

.github/workflows/valgrind.yml

@@ -0,0 +1,28 @@
+name: Test for memory leaks with valgrind
+
+on:
+  push:
+    branches: [ main ]
+  pull_request:
+    branches: [ main ]
+
+jobs:
+  build:
+    name:
+      Test for memory leaks with valgrind
+    runs-on: ubuntu-latest
+    env:
+      CC: gcc
+
+    steps:
+    - uses: actions/checkout@v2
+
+    - name: Install dependencies
+      run: |
+        python -m pip install --upgrade pip
+        pip install pytest
+        sudo apt-get -y install valgrind
+        sudo apt-get -y install zlib1g-dev
+
+    - name: test valgrind
+      run: make test_valgrind V=1