I also get an error when trying to build the examples:
Make Error at /Applications/CMake.app/Contents/share/cmake-3.18/Modules/CMakeTestCXXCompiler.cmake:59 (message):
The C++ compiler
"/Library/Developer/CommandLineTools/usr/bin/c++"
is not able to compile a simple test program.
It fails with the following output:
Change Dir: /Users/trigonomicsbook/VST_SDK/build/CMakeFiles/CMakeTmp
Run Build Command(s):/usr/bin/make cmTC_ff833/fast && /Library/Developer/CommandLineTools/usr/bin/make -f CMakeFiles/cmTC_ff833.dir/build.make CMakeFiles/cmTC_ff833.dir/build
Building CXX object CMakeFiles/cmTC_ff833.dir/testCXXCompiler.cxx.o
/Library/Developer/CommandLineTools/usr/bin/c++ -isysroot /Library/Developer/CommandLineTools/SDKs/MacOSX.sdk -mmacosx-version-min=10.8 -o CMakeFiles/cmTC_ff833.dir/testCXXCompiler.cxx.o -c /Users/trigonomicsbook/VST_SDK/build/CMakeFiles/CMakeTmp/testCXXCompiler.cxx
clang: warning: include path for libstdc++ headers not found; pass '-stdlib=libc++' on the command line to use the libc++ standard library instead [-Wstdlibcxx-not-found]
Linking CXX executable cmTC_ff833
/Applications/CMake.app/Contents/bin/cmake -E cmake_link_script CMakeFiles/cmTC_ff833.dir/link.txt --verbose=1
/Library/Developer/CommandLineTools/usr/bin/c++ -isysroot /Library/Developer/CommandLineTools/SDKs/MacOSX.sdk -mmacosx-version-min=10.8 -Wl,-search_paths_first -Wl,-headerpad_max_install_names CMakeFiles/cmTC_ff833.dir/testCXXCompiler.cxx.o -o cmTC_ff833
clang: warning: libstdc++ is deprecated; move to libc++ with a minimum deployment target of OS X 10.9 [-Wdeprecated]
ld: library not found for -lstdc++
clang: error: linker command failed with exit code 1 (use -v to see invocation)
make[1]: *** [cmTC_ff833] Error 1
make: *** [cmTC_ff833/fast] Error 2
CMake will not be able to correctly generate this project.
Call Stack (most recent call first):
CMakeLists.txt:15 (project)