Build CMake on GitHub Actions

Also, resolve CMake build problems on macOS:
Pass CMAKE_OSX_SYSROOT as an environment variable SDKROOT when buildind the arch_flags executable.

.github/workflows/build-posix-cmake.yml

@@ -11,7 +11,7 @@ jobs:
     runs-on: ${{ matrix.os }}
 
     env:
-      MAKE_ARGS: ${{ matrix.use_namespace && '-DABC_USE_NAMESPACE=ON' || '' }}
+      CMAKE_ARGS: ${{ matrix.use_namespace && '-DABC_USE_NAMESPACE=xxx' || '' }}
       DEMO_ARGS: ${{ matrix.use_namespace && '-DABC_NAMESPACE=xxx' || '' }}
       DEMO_GCC: ${{ matrix.use_namespace && 'g++ -x c++' || 'gcc' }}
 
@@ -34,7 +34,7 @@ jobs:
 
     - name: Configure CMake
       run: |
-        cmake -G Ninja -DCMAKE_BUILD_TYPE=Release -B build
+        cmake -G Ninja -DCMAKE_BUILD_TYPE=Release ${CMAKE_ARGS} -B build
 
     - name: Build CMake
       run: |
@@ -53,7 +53,7 @@ jobs:
     - name: Stage Executable
       run: |
        mkdir staging
-       cp abc libabc.a staging/
+       cp build/abc build/libabc.a staging/
 
     - name: Upload pacakge artifact
       uses: actions/upload-artifact@v1

CMakeLists.txt

@@ -47,9 +47,14 @@ if(ABC_USE_NAMESPACE)
     set(ABC_USE_NAMESPACE_FLAGS "ABC_USE_NAMESPACE=${ABC_USE_NAMESPACE}")
 endif()
 
+if( APPLE )
+    set(make_env ${CMAKE_COMMAND} -E env SDKROOT=${CMAKE_OSX_SYSROOT})
+endif()
+
 # run make to extract compiler options, linker options and list of source files
 execute_process(
   COMMAND
+    ${make_env}
     make
         ${ABC_READLINE_FLAGS}
         ${ABC_USE_NAMESPACE_FLAGS}

README.md

-[![.github/workflows/build-posix.yml](https://github.com/sterin/abc/actions/workflows/build-posix.yml/badge.svg)](https://github.com/sterin/abc/actions/workflows/build-posix.yml)
-[![.github/workflows/build-windows.yml](https://github.com/sterin/abc/actions/workflows/build-windows.yml/badge.svg)](https://github.com/sterin/abc/actions/workflows/build-windows.yml)
+[![.github/workflows/build-posix.yml](https://github.com/berkeley-abc/abc/actions/workflows/build-posix.yml/badge.svg)](https://github.com/berkeley-abc/abc/actions/workflows/build-posix.yml)
+[![.github/workflows/build-windows.yml](https://github.com/berkeley-abc/abc/actions/workflows/build-windows.yml/badge.svg)](https://github.com/berkeley-abc/abc/actions/workflows/build-windows.yml)
+[![.github/workflows/build-posix-cmake.yml](https://github.com/berkeley-abc/abc/actions/workflows/build-posix-cmake.yml/badge.svg)](https://github.com/berkeley-abc/abc/actions/workflows/build-posix-cmake.yml)
 
 # ABC: System for Sequential Logic Synthesis and Formal Verification