macos 12.3.1 install libsass==0.18.0 report ld: library not found for -lc++

[jeffery9]

when install with pip install libsass==0.18.0 raise compiling error

ld: library not found for -lc++
      clang: error: linker command failed with exit code 1 (use -v to see invocation)
      error: command 'clang++' failed with exit status 1
      [end of output]
  
  note: This error originates from a subprocess, and is likely not a problem with pip.
error: legacy-install-failure

× Encountered error while trying to install package.
╰─> libsass

[asottile]

0.18.0 is very very old, also you might be missing the xcode build tools?

[asottile]

also show the full output and the command you ran

[jeffery9]

ref to issue odoo/documentation#2003

[jeffery9]

clang++ -bundle -undefined dynamic_lookup -Wl,-headerpad,0x1000 -arch x86_64 build/temp.macosx-10.14-x86_64-3.8/libsass/src/ast.o build/temp.macosx-10.14-x86_64-3.8/libsass/src/ast_fwd_decl.o build/temp.macosx-10.14-x86_64-3.8/libsass/src/backtrace.o build/temp.macosx-10.14-x86_64-3.8/libsass/src/base64vlq.o build/temp.macosx-10.14-x86_64-3.8/libsass/src/bind.o build/temp.macosx-10.14-x86_64-3.8/libsass/src/c99func.o build/temp.macosx-10.14-x86_64-3.8/libsass/src/cencode.o build/temp.macosx-10.14-x86_64-3.8/libsass/src/check_nesting.o build/temp.macosx-10.14-x86_64-3.8/libsass/src/color_maps.o build/temp.macosx-10.14-x86_64-3.8/libsass/src/constants.o build/temp.macosx-10.14-x86_64-3.8/libsass/src/context.o build/temp.macosx-10.14-x86_64-3.8/libsass/src/cssize.o build/temp.macosx-10.14-x86_64-3.8/libsass/src/emitter.o build/temp.macosx-10.14-x86_64-3.8/libsass/src/environment.o build/temp.macosx-10.14-x86_64-3.8/libsass/src/error_handling.o build/temp.macosx-10.14-x86_64-3.8/libsass/src/eval.o build/temp.macosx-10.14-x86_64-3.8/libsass/src/expand.o build/temp.macosx-10.14-x86_64-3.8/libsass/src/extend.o build/temp.macosx-10.14-x86_64-3.8/libsass/src/file.o build/temp.macosx-10.14-x86_64-3.8/libsass/src/functions.o build/temp.macosx-10.14-x86_64-3.8/libsass/src/inspect.o build/temp.macosx-10.14-x86_64-3.8/libsass/src/json.o build/temp.macosx-10.14-x86_64-3.8/libsass/src/lexer.o build/temp.macosx-10.14-x86_64-3.8/libsass/src/listize.o build/temp.macosx-10.14-x86_64-3.8/libsass/src/memory/SharedPtr.o build/temp.macosx-10.14-x86_64-3.8/libsass/src/node.o build/temp.macosx-10.14-x86_64-3.8/libsass/src/operators.o build/temp.macosx-10.14-x86_64-3.8/libsass/src/output.o build/temp.macosx-10.14-x86_64-3.8/libsass/src/parser.o build/temp.macosx-10.14-x86_64-3.8/libsass/src/plugins.o build/temp.macosx-10.14-x86_64-3.8/libsass/src/position.o build/temp.macosx-10.14-x86_64-3.8/libsass/src/prelexer.o build/temp.macosx-10.14-x86_64-3.8/libsass/src/remove_placeholders.o build/temp.macosx-10.14-x86_64-3.8/libsass/src/sass.o build/temp.macosx-10.14-x86_64-3.8/libsass/src/sass2scss.o build/temp.macosx-10.14-x86_64-3.8/libsass/src/sass_context.o build/temp.macosx-10.14-x86_64-3.8/libsass/src/sass_functions.o build/temp.macosx-10.14-x86_64-3.8/libsass/src/sass_util.o build/temp.macosx-10.14-x86_64-3.8/libsass/src/sass_values.o build/temp.macosx-10.14-x86_64-3.8/libsass/src/source_map.o build/temp.macosx-10.14-x86_64-3.8/libsass/src/subset_map.o build/temp.macosx-10.14-x86_64-3.8/libsass/src/to_c.o build/temp.macosx-10.14-x86_64-3.8/libsass/src/to_value.o build/temp.macosx-10.14-x86_64-3.8/libsass/src/units.o build/temp.macosx-10.14-x86_64-3.8/libsass/src/utf8_string.o build/temp.macosx-10.14-x86_64-3.8/libsass/src/util.o build/temp.macosx-10.14-x86_64-3.8/libsass/src/values.o build/temp.macosx-10.14-x86_64-3.8/pysass.o -o build/lib.macosx-10.14-x86_64-3.8/_sass.cpython-38-darwin.so -fPIC -stdlib=libc++ -mmacosx-version-min=10.7
      ld: library not found for -lc++
      clang: error: linker command failed with exit code 1 (use -v to see invocation)
      error: command 'clang++' failed with exit status 1
      [end of output]
  
  note: This error originates from a subprocess, and is likely not a problem with pip.

[asottile]

usually the fix is xcode-select --install

[jeffery9]

 $ xcode-select --install
xcode-select: error: command line tools are already installed, use "Software Update" to install updates


$ softwareupdate -ai
Software Update Tool

Finding available software
No updates are available.

[jeffery9]

pip install libsass worked.

[asottile]

sounds good, yeah try not using a 3 year old version :P