add CI for 32bit build

.github/workflows/ci.yml

@@ -3,6 +3,7 @@ name: CI
 on: [push, pull_request]
 
 jobs:
+
   test-ubuntu-latest:
     runs-on: ubuntu-latest
     steps:
@@ -29,3 +30,20 @@ jobs:
     - uses: actions/checkout@v1
     - name: make
       run: make
+
+  biuld-32bit:
+    runs-on: ubuntu-latest
+    steps:
+    - uses: actions/checkout@v1
+    - name: make
+      run: |
+        sudo apt-get update && sudo apt-get install libc6-dev-i386
+        make 32bit
+
+  build-libc-malloc:
+    runs-on: ubuntu-latest
+    steps:
+    - uses: actions/checkout@v1
+    - name: make
+      run: make MALLOC=libc
+

.github/workflows/daily.yml

@@ -5,6 +5,7 @@ on:
     - cron: '0 7 * * *'
 
 jobs:
+
   test-jemalloc:
     runs-on: ubuntu-latest
     timeout-minutes: 1200
@@ -33,6 +34,21 @@ jobs:
     - name: module api test
       run: ./runtest-moduleapi --verbose
 
+  test-32bit:
+    runs-on: ubuntu-latest
+    steps:
+    - uses: actions/checkout@v1
+    - name: make
+      run: |
+        sudo apt-get update && sudo apt-get install libc6-dev-i386
+        make 32bit
+    - name: test
+      run: |
+        sudo apt-get install tcl8.5
+        ./runtest --accurate --verbose
+    - name: module api test
+      run: ./runtest-moduleapi --verbose
+
   test-valgrind:
     runs-on: ubuntu-latest
     timeout-minutes: 14400