Trouble building with CMake after long hiatus

[PaulWessel]

Wonder if someone knows what these Cmake errors are caused by. It has been several macOS version since I last tried to build gsfml so probably needing some updates. Running make config in the TOOLS directory (create build directory and run cmake) yields this output:

make config
mkdir -p build
(cd build; cmake -DCMAKE_INSTALL_PREFIX=gsfml -DCMAKE_BUILD_TYPE=Release ..)
CMake Warning at /opt/local/share/cmake-3.24/Modules/Platform/Darwin-Initialize.cmake:303 (message):
  Ignoring CMAKE_OSX_SYSROOT value:

   /Applications/Xcode.app/Contents/Developer/Platforms/MacOSX.platform/Developer/SDKs/MacOSX12.1.sdk

  because the directory does not exist.
Call Stack (most recent call first):
  /opt/local/share/cmake-3.24/Modules/CMakeSystemSpecificInitialize.cmake:21 (include)
  CMakeLists.txt:32 (project)


-- The C compiler identification is AppleClang 14.0.3.14030022
-- The CXX compiler identification is AppleClang 14.0.3.14030022
-- Detecting C compiler ABI info
-- Detecting C compiler ABI info - failed
-- Check for working C compiler: /Applications/Xcode.app/Contents/Developer/Toolchains/XcodeDefault.xctoolchain/usr/bin/cc
-- Check for working C compiler: /Applications/Xcode.app/Contents/Developer/Toolchains/XcodeDefault.xctoolchain/usr/bin/cc - broken
CMake Error at /opt/local/share/cmake-3.24/Modules/CMakeTestCCompiler.cmake:69 (message):
  The C compiler

    "/Applications/Xcode.app/Contents/Developer/Toolchains/XcodeDefault.xctoolchain/usr/bin/cc"

  is not able to compile a simple test program.

  It fails with the following output:

    Change Dir: /Users/pwessel/UH/RESEARCH/CVSPROJECTS/GMTdev/gsfml/TOOLS/build/CMakeFiles/CMakeTmp
    
    Run Build Command(s):/opt/local/bin/gmake -f Makefile cmTC_b1040/fast && gmake[1]: Entering directory '/Users/pwessel/UH/RESEARCH/CVSPROJECTS/GMTdev/gsfml/TOOLS/build/CMakeFiles/CMakeTmp'
    /opt/local/bin/gmake  -f CMakeFiles/cmTC_b1040.dir/build.make CMakeFiles/cmTC_b1040.dir/build
    gmake[2]: Entering directory '/Users/pwessel/UH/RESEARCH/CVSPROJECTS/GMTdev/gsfml/TOOLS/build/CMakeFiles/CMakeTmp'
    Building C object CMakeFiles/cmTC_b1040.dir/testCCompiler.c.o
    /Applications/Xcode.app/Contents/Developer/Toolchains/XcodeDefault.xctoolchain/usr/bin/cc   -arch arm64 -MD -MT CMakeFiles/cmTC_b1040.dir/testCCompiler.c.o -MF CMakeFiles/cmTC_b1040.dir/testCCompiler.c.o.d -o CMakeFiles/cmTC_b1040.dir/testCCompiler.c.o -c /Users/pwessel/UH/RESEARCH/CVSPROJECTS/GMTdev/gsfml/TOOLS/build/CMakeFiles/CMakeTmp/testCCompiler.c
    Linking C executable cmTC_b1040
    /opt/local/bin/cmake -E cmake_link_script CMakeFiles/cmTC_b1040.dir/link.txt --verbose=1
    /Applications/Xcode.app/Contents/Developer/Toolchains/XcodeDefault.xctoolchain/usr/bin/cc  -arch arm64 -Wl,-search_paths_first -Wl,-headerpad_max_install_names CMakeFiles/cmTC_b1040.dir/testCCompiler.c.o -o cmTC_b1040 
    ld: library not found for -lSystem
    clang: error: linker command failed with exit code 1 (use -v to see invocation)
    gmake[2]: *** [CMakeFiles/cmTC_b1040.dir/build.make:100: cmTC_b1040] Error 1
    gmake[2]: Leaving directory '/Users/pwessel/UH/RESEARCH/CVSPROJECTS/GMTdev/gsfml/TOOLS/build/CMakeFiles/CMakeTmp'
    gmake[1]: *** [Makefile:127: cmTC_b1040/fast] Error 2
    gmake[1]: Leaving directory '/Users/pwessel/UH/RESEARCH/CVSPROJECTS/GMTdev/gsfml/TOOLS/build/CMakeFiles/CMakeTmp'
    
    

  

  CMake will not be able to correctly generate this project.
Call Stack (most recent call first):
  CMakeLists.txt:32 (project)


-- Configuring incomplete, errors occurred!
See also "/Users/pwessel/UH/RESEARCH/CVSPROJECTS/GMTdev/gsfml/TOOLS/build/CMakeFiles/CMakeOutput.log".
See also "/Users/pwessel/UH/RESEARCH/CVSPROJECTS/GMTdev/gsfml/TOOLS/build/CMakeFiles/CMakeError.log".
make: *** [config] Error 1

[seisman]

It's likely that your clang is broken and can't find the "System" library.

    ld: library not found for -lSystem
    clang: error: linker command failed with exit code 1 (use -v to see invocation)

[PaulWessel]

OK, I guess I just reinstall clang from macport then, right?