[gh-actions] Fix building for macos-latest (Mac OS 14 Sonoma)

.github/workflows/macos.yml

@@ -19,7 +19,7 @@ on:
 
 jobs:
   build:
-    runs-on: macos-12
+    runs-on: macos-latest
 
     steps:
     - uses: actions/checkout@v4
@@ -28,15 +28,15 @@ jobs:
       run: brew install automake autoconf libtool pkg-config
 
     - name: Install gperf, bison and flex
-      # MacOS comes with an ancient bison, we need a newer version. Homebrew's
-      # bison and flex are keg-only, which means they are not symlinked into
-      # /usr/local because macOS already provides this software. Homebrew tells
-      # you to adjust the $PATH, but I couldn't make that work, and I think
-      # symlinking is a better solution for simple binaries.
+      # Mac OS has ancient versions of bison and flex, so we need a newer from
+      # Homebrew. The new versions are installed keg-only, so we must tell
+      # configure/make where to look. Adjusting $PATH doesn't work (maybe
+      # because make invokes the two via ylwrap), so instead symlink the two
+      # into /usr/local/bin.
       run: |
         brew install gperf bison flex
-        sudo ln -s /usr/local/opt/bison/bin/bison /usr/local/bin/bison
-        sudo ln -s /usr/local/opt/flex/bin/flex /usr/local/bin/flex
+        sudo ln -s "$(brew --prefix)/opt/bison/bin/bison" /usr/local/bin/bison
+        sudo ln -s "$(brew --prefix)/opt/flex/bin/flex" /usr/local/bin/flex
 
     - name: Install libinotify-kqueue
       # brew does not have libinotify package
@@ -69,23 +69,21 @@ jobs:
         brew install ffmpeg
 
     - name: Install other dependencies
+      # libxml2 is included with Mac OS
       run: |
-        brew install libxml2 libunistring confuse libplist libwebsockets libevent libgcrypt json-c protobuf-c libsodium gnutls pulseaudio openssl
+        brew install libunistring confuse libplist libwebsockets libevent libgcrypt json-c protobuf-c libsodium gnutls pulseaudio openssl
 
     - name: Configure
       # We configure a non-privileged setup, since how to add a "owntone" system
       # user in MacOS isn't clear to me (useradd etc. isn't available)
       run: |
+        export CFLAGS="-I$(brew --prefix)/include"
+        export LDFLAGS="-L$(brew --prefix)/lib"
         autoreconf -fi
         ./configure --prefix=$HOME/owntone_data/usr --sysconfdir=$HOME/owntone_data/etc --localstatedir=$HOME/owntone_data/var --enable-chromecast --with-pulseaudio
 
     - name: Build
       run: |
-        # Without setting these env vars the build fails with e.g. "fatal error: 'openssl/ssl.h' file not found"
-        # (Solution taken from https://github.com/libimobiledevice/libimobiledevice/issues/389#issuecomment-289284190)
-        export LD_LIBRARY_PATH=$(brew --prefix openssl)/lib
-        export CPATH=$(brew --prefix openssl)/include
-        export PKG_CONFIG_PATH=$(brew --prefix openssl)/lib/pkgconfig
         make
 
     - name: Install