Added GitHub Actions MacOS builds

Build for Ubuntu and MacOS with both dynamic and static linking

Author: chrisn

.github/workflows/cmake.yml

@@ -8,11 +8,16 @@ env:
 
 jobs:
   build:
+    strategy:
+      matrix:
+        os: [ubuntu-latest, macos-latest]
+        linkage: [dynamic, static]
+
     # The CMake configure and build commands are platform agnostic and should work equally
     # well on Windows or Mac.  You can convert this to a matrix build if you need
     # cross-platform coverage.
     # See: https://docs.github.com/en/free-pro-team@latest/actions/learn-github-actions/managing-complex-workflows#using-a-build-matrix
-    runs-on: ubuntu-latest
+    runs-on: ${{matrix.os}}
 
     steps:
     - uses: actions/checkout@v2
@@ -22,11 +27,22 @@ jobs:
       # We'll use this as our working directory for all subsequent commands
       run: cmake -E make_directory ${{github.workspace}}/build
 
-    - name: Install dependencies
+    - name: Install dependencies (Ubuntu)
+      if: ${{matrix.os == 'ubuntu-latest'}}
       run: |
         sudo apt-get remove nginx libgd3
         sudo apt-get install libmad0-dev libid3tag0-dev libsndfile1-dev libgd-dev libboost-filesystem-dev libboost-program-options-dev libboost-regex-dev
 
+    - name: Install dependencies (MacOS)
+      if: ${{matrix.os == 'macos-latest' && matrix.linkage == 'dynamic'}}
+      run: |
+        brew install mad libgd boost libpng zlib libsndfile libid3tag
+
+    - name: Install dependencies (MacOS)
+      if: ${{matrix.os == 'macos-latest' && matrix.linkage == 'static'}}
+      run: |
+        brew install mad libgd boost libpng zlib
+
     - name: Install Googletest
       shell: bash
       working-directory: ${{github.workspace}}
@@ -35,6 +51,28 @@ jobs:
         tar xzf release-1.12.1.tar.gz
         ln -s googletest-release-1.12.1 googletest
 
+    - name: Install libsndfile
+      if: ${{matrix.os == 'macos-latest' && matrix.linkage == 'static'}}
+      run: |
+        wget https://github.com/libsndfile/libsndfile/archive/refs/tags/1.1.0.tar.gz
+        tar xzf 1.1.0.tar.gz
+        cd libsndfile-1.1.0
+        mkdir build
+        cd build
+        cmake -D ENABLE_MPEG=0 -D ENABLE_TESTING=0 -D BUILD_SHARED_LIBS=0 -D BUILD_REGTEST=0 -D BUILD_PROGRAMS=0 -D BUILD_TESTING=0 -D BUILD_EXAMPLES=0 ..
+        make
+        make install
+
+    - name: Install libid3tag
+      if: ${{matrix.os == 'macos-latest' && matrix.linkage == 'static'}}
+      run: |
+        wget http://sourceforge.net/projects/mad/files/libid3tag/0.15.1b/libid3tag-0.15.1b.tar.gz
+        tar xzf libid3tag-0.15.1b.tar.gz
+        cd libid3tag-0.15.1b
+        ./configure --enable-static
+        make
+        make install
+
     - name: Configure CMake
       # Use a bash shell so we can use the same syntax for environment variable
       # access regardless of the host operating system
@@ -43,13 +81,15 @@ jobs:
       # Note the current convention is to use the -S and -B options here to specify source
       # and build directories, but this is only available with CMake 3.13 and higher.
       # The CMake binaries on the Github Actions machines are (as of this writing) 3.12
-      run: cmake $GITHUB_WORKSPACE -DCMAKE_BUILD_TYPE=$BUILD_TYPE
+      run: cmake $GITHUB_WORKSPACE -D CMAKE_BUILD_TYPE=$BUILD_TYPE -D BUILD_STATIC=${{matrix.linkage == 'static'}}
 
     - name: Build
       working-directory: ${{github.workspace}}/build
       shell: bash
       # Execute the build.  You can specify a specific target with "--target <NAME>"
-      run: cmake --build . --config $BUILD_TYPE
+      run: |
+        export LIBRARY_PATH=${LIBRARY_PATH}:/usr/local/opt/icu4c/lib
+        cmake --build . --config $BUILD_TYPE
 
     - name: Test
       working-directory: ${{github.workspace}}/build

CMakeLists.txt

@@ -78,6 +78,12 @@ if(BUILD_STATIC)
         set(Boost_USE_STATIC_RUNTIME OFF)
         set(CMAKE_FIND_LIBRARY_SUFFIXES .a)
         set(CMAKE_EXE_LINKER_FLAGS "${CMAKE_EXE_LINKER_FLAGS} -no-pie")
+
+        if(APPLE)
+            message(STATUS "Set ZLIB_ROOT for MacOS builds")
+            cmake_policy(SET CMP0074 NEW)
+            set(ZLIB_ROOT "/usr/local/opt/zlib")
+        endif()
     endif()
 endif(BUILD_STATIC)
 
@@ -200,8 +206,9 @@ set(COMMON_FLAGS "-Wall -Wextra -Wconversion -pedantic")
 set(CMAKE_CXX_FLAGS "${CMAKE_CXX_FLAGS} ${COMMON_FLAGS} -DBOOST_FILESYSTEM_NO_DEPRECATED")
 set(CMAKE_C_FLAGS ${COMMON_FLAGS})
 
-if(APPLE)
-    set(CMAKE_CXX_FLAGS "-stdlib=libc++ ${CMAKE_CXX_FLAGS}")
+if(APPLE AND BUILD_STATIC)
+    set(CMAKE_CXX_FLAGS "-stdlib=libc++ ${CMAKE_CXX_FLAGS} -fvisibility=hidden -fvisibility-inlines-hidden")
+    set(CMAKE_C_FLAGS "${CMAKE_C_FLAGS} -fvisibility=hidden -fvisibility-inlines-hidden")
 endif()
 
 message(STATUS "CMAKE_CXX_COMPILER_VERSION='${CMAKE_CXX_COMPILER_VERSION}'")
@@ -271,8 +278,7 @@ add_executable(audiowaveform ${SRCS})
 #-------------------------------------------------------------------------------
 
 # Specify libraries to link against.
-set(
-    LIBS
+set(LIBS
     ${LIBSNDFILE_LIBRARIES}
     ${LIBGD_LIBRARIES}
     ${LIBMAD_LIBRARIES}