TagLib linking issue on macOS

[zhenhuaw-me]

Seen TagLib linking issue on macOS Montrey (12.5.1).

• Reported error

Consolidate compiler generated dependencies of target playlist
[ 10%] Linking CXX executable playlist
ld: library not found for -ltag
clang: error: linker command failed with exit code 1 (use -v to see invocation)
make[2]: *** [playlist] Error 1
make[1]: *** [CMakeFiles/playlist.dir/all] Error 2
make: *** [all] Error 2

• Lib existed as it is

$ ls /usr/local/lib/libtag*.dylib
/usr/local/lib/libtag.1.18.0.dylib  /usr/local/lib/libtag.dylib         /usr/local/lib/libtag_c.0.dylib
/usr/local/lib/libtag.1.dylib       /usr/local/lib/libtag_c.0.0.0.dylib /usr/local/lib/libtag_c.dylib

• The hack: Change -ltag in playlist/build/CMakeFiles/playlist.dir/link.txt to the path to the library /usr/local/lib/libtag.dylib (similar to pugixml).

  • Before

  /Library/Developer/CommandLineTools/usr/bin/c++ -O2 -isysroot /Library/Developer/CommandLineTools/SDKs/MacOSX12.3.sdk -Wl,-search_paths_first -Wl,-headerpad_max_install_names CMakeFiles/playlist.dir/src/main.cpp.o CMakeFiles/playlist.dir/src/playlist.cpp.o CMakeFiles/playlist.dir/src/asx.cpp.o CMakeFiles/playlist.dir/src/cue.cpp.o CMakeFiles/playlist.dir/src/jspf.cpp.o CMakeFiles/playlist.dir/src/m3u.cpp.o CMakeFiles/playlist.dir/src/pls.cpp.o CMakeFiles/playlist.dir/src/wpl.cpp.o CMakeFiles/playlist.dir/src/xspf.cpp.o -o playlist  -Wl,-rpath,/usr/local/lib -lcurl -ltag /usr/local/lib/libpugixml.1.12.dylib
  

  • After

  /Library/Developer/CommandLineTools/usr/bin/c++ -O2 -isysroot /Library/Developer/CommandLineTools/SDKs/MacOSX12.3.sdk -Wl,-search_paths_first -Wl,-headerpad_max_install_names CMakeFiles/playlist.dir/src/main.cpp.o CMakeFiles/playlist.dir/src/playlist.cpp.o CMakeFiles/playlist.dir/src/asx.cpp.o CMakeFiles/playlist.dir/src/cue.cpp.o CMakeFiles/playlist.dir/src/jspf.cpp.o CMakeFiles/playlist.dir/src/m3u.cpp.o CMakeFiles/playlist.dir/src/pls.cpp.o CMakeFiles/playlist.dir/src/wpl.cpp.o CMakeFiles/playlist.dir/src/xspf.cpp.o -o playlist  -Wl,-rpath,/usr/local/lib -lcurl /usr/local/lib/libtag.dylib /usr/local/lib/libpugixml.1.12.dylib
  

• Now it can build

$ make -j4
[ 10%] Linking CXX executable playlist
[100%] Built target playlist

[zhenhuaw-me]

Not sure if it's a machine depenent issue or related to how the TagLib linking rule is set.

[smithjd15]

I don't have an OSX machine and therefore have no way of fixing and/or testing this. Patches welcome!