ADDED   .github/workflows/macos-10.15.yml
Index: .github/workflows/macos-10.15.yml
==================================================================
--- .github/workflows/macos-10.15.yml
+++ .github/workflows/macos-10.15.yml
@@ -0,0 +1,19 @@
+name: macos-10.15
+on: [push, pull_request]
+jobs:
+  tests:
+    runs-on: macos-10.15
+    steps:
+    - name: Install dependencies
+      run: brew install autoconf automake
+    - uses: actions/checkout@v2
+    - name: autogen.sh
+      run: ./autogen.sh
+    - name: configure
+      run: ./configure
+    - name: make
+      run: make -j$(sysctl -n hw.logicalcpu)
+    - name: make check
+      run: make check
+    - name: make install
+      run: sudo make install

ADDED   .github/workflows/macos-11.yml
Index: .github/workflows/macos-11.yml
==================================================================
--- .github/workflows/macos-11.yml
+++ .github/workflows/macos-11.yml
@@ -0,0 +1,19 @@
+name: macos-11
+on: [push, pull_request]
+jobs:
+  tests:
+    runs-on: macos-11
+    steps:
+    - name: Install dependencies
+      run: brew install autoconf automake
+    - uses: actions/checkout@v2
+    - name: autogen.sh
+      run: ./autogen.sh
+    - name: configure
+      run: ./configure
+    - name: make
+      run: make -j$(sysctl -n hw.logicalcpu)
+    - name: make check
+      run: make check
+    - name: make install
+      run: sudo make install

ADDED   .github/workflows/ubuntu-18.04-32bit.yml
Index: .github/workflows/ubuntu-18.04-32bit.yml
==================================================================
--- .github/workflows/ubuntu-18.04-32bit.yml
+++ .github/workflows/ubuntu-18.04-32bit.yml
@@ -0,0 +1,19 @@
+name: ubuntu-18.04, 32 bit
+on: [push, pull_request]
+jobs:
+  tests:
+    runs-on: ubuntu-18.04
+    steps:
+    - name: Install dependencies
+      run: sudo apt install gcc-multilib
+    - uses: actions/checkout@v2
+    - name: autogen.sh
+      run: ./autogen.sh
+    - name: configure
+      run: ./configure OBJC="clang -m32"
+    - name: make
+      run: make -j$(nproc)
+    - name: make check
+      run: make check
+    - name: make install
+      run: sudo make install

ADDED   .github/workflows/ubuntu-18.04-gcc-32bit.yml
Index: .github/workflows/ubuntu-18.04-gcc-32bit.yml
==================================================================
--- .github/workflows/ubuntu-18.04-gcc-32bit.yml
+++ .github/workflows/ubuntu-18.04-gcc-32bit.yml
@@ -0,0 +1,19 @@
+name: ubuntu-18.04, GCC, 32 bit
+on: [push, pull_request]
+jobs:
+  tests:
+    runs-on: ubuntu-18.04
+    steps:
+    - name: Install dependencies
+      run: sudo apt install gcc-multilib gobjc
+    - uses: actions/checkout@v2
+    - name: autogen.sh
+      run: ./autogen.sh
+    - name: configure
+      run: ./configure OBJC="gcc -m32"
+    - name: make
+      run: make -j$(nproc)
+    - name: make check
+      run: make check
+    - name: make install
+      run: sudo make install

ADDED   .github/workflows/ubuntu-18.04-gcc.yml
Index: .github/workflows/ubuntu-18.04-gcc.yml
==================================================================
--- .github/workflows/ubuntu-18.04-gcc.yml
+++ .github/workflows/ubuntu-18.04-gcc.yml
@@ -0,0 +1,19 @@
+name: ubuntu-18.04, GCC
+on: [push, pull_request]
+jobs:
+  tests:
+    runs-on: ubuntu-18.04
+    steps:
+    - name: Install dependencies
+      run: sudo apt install gobjc
+    - uses: actions/checkout@v2
+    - name: autogen.sh
+      run: ./autogen.sh
+    - name: configure
+      run: ./configure OBJC="gcc"
+    - name: make
+      run: make -j$(nproc)
+    - name: make check
+      run: make check
+    - name: make install
+      run: sudo make install

ADDED   .github/workflows/ubuntu-18.04.yml
Index: .github/workflows/ubuntu-18.04.yml
==================================================================
--- .github/workflows/ubuntu-18.04.yml
+++ .github/workflows/ubuntu-18.04.yml
@@ -0,0 +1,17 @@
+name: ubuntu-18.04
+on: [push, pull_request]
+jobs:
+  tests:
+    runs-on: ubuntu-18.04
+    steps:
+    - uses: actions/checkout@v2
+    - name: autogen.sh
+      run: ./autogen.sh
+    - name: configure
+      run: ./configure
+    - name: make
+      run: make -j$(nproc)
+    - name: make check
+      run: make check
+    - name: make install
+      run: sudo make install

ADDED   .github/workflows/ubuntu-20.04-32bit.yml
Index: .github/workflows/ubuntu-20.04-32bit.yml
==================================================================
--- .github/workflows/ubuntu-20.04-32bit.yml
+++ .github/workflows/ubuntu-20.04-32bit.yml
@@ -0,0 +1,19 @@
+name: ubuntu-20.04, 32 bit
+on: [push, pull_request]
+jobs:
+  tests:
+    runs-on: ubuntu-20.04
+    steps:
+    - name: Install dependencies
+      run: sudo apt install gcc-multilib
+    - uses: actions/checkout@v2
+    - name: autogen.sh
+      run: ./autogen.sh
+    - name: configure
+      run: ./configure OBJC="clang -m32"
+    - name: make
+      run: make -j$(nproc)
+    - name: make check
+      run: make check
+    - name: make install
+      run: sudo make install

ADDED   .github/workflows/ubuntu-20.04-gcc-32bit.yml
Index: .github/workflows/ubuntu-20.04-gcc-32bit.yml
==================================================================
--- .github/workflows/ubuntu-20.04-gcc-32bit.yml
+++ .github/workflows/ubuntu-20.04-gcc-32bit.yml
@@ -0,0 +1,19 @@
+name: ubuntu-20.04, GCC, 32 bit
+on: [push, pull_request]
+jobs:
+  tests:
+    runs-on: ubuntu-20.04
+    steps:
+    - name: Install dependencies
+      run: sudo apt install gcc-multilib gobjc
+    - uses: actions/checkout@v2
+    - name: autogen.sh
+      run: ./autogen.sh
+    - name: configure
+      run: ./configure OBJC="gcc -m32"
+    - name: make
+      run: make -j$(nproc)
+    - name: make check
+      run: make check
+    - name: make install
+      run: sudo make install

ADDED   .github/workflows/ubuntu-20.04-gcc.yml
Index: .github/workflows/ubuntu-20.04-gcc.yml
==================================================================
--- .github/workflows/ubuntu-20.04-gcc.yml
+++ .github/workflows/ubuntu-20.04-gcc.yml
@@ -0,0 +1,19 @@
+name: ubuntu-20.04, GCC
+on: [push, pull_request]
+jobs:
+  tests:
+    runs-on: ubuntu-20.04
+    steps:
+    - name: Install dependencies
+      run: sudo apt install gobjc
+    - uses: actions/checkout@v2
+    - name: autogen.sh
+      run: ./autogen.sh
+    - name: configure
+      run: ./configure OBJC="gcc"
+    - name: make
+      run: make -j$(nproc)
+    - name: make check
+      run: make check
+    - name: make install
+      run: sudo make install

ADDED   .github/workflows/ubuntu-20.04.yml
Index: .github/workflows/ubuntu-20.04.yml
==================================================================
--- .github/workflows/ubuntu-20.04.yml
+++ .github/workflows/ubuntu-20.04.yml
@@ -0,0 +1,17 @@
+name: ubuntu-20.04
+on: [push, pull_request]
+jobs:
+  tests:
+    runs-on: ubuntu-20.04
+    steps:
+    - uses: actions/checkout@v2
+    - name: autogen.sh
+      run: ./autogen.sh
+    - name: configure
+      run: ./configure
+    - name: make
+      run: make -j$(nproc)
+    - name: make check
+      run: make check
+    - name: make install
+      run: sudo make install