Add CMake presets

[wusatosi]

This is directly fetched from exemplar.

[ClausKlein]

This kind of presets are very restricted, but not usable

I don´t use apple clang compiler. It does not support current std's!

I use gcc-14 and clang-19.

I you keep the presets as they are, disable presets not intended for this build host OS.

If not, this may happen:

cmake --lists-presets

Available configure presets:

  "gcc-debug"          - GCC Debug Build
  "gcc-release"        - GCC Release Build
  "appleclang-debug"   - xcode Debug Build
  "appleclang-release" - xcode Release Build
  "msvc-debug"         - MSVC Debug Build
  "msvc-release"       - MSVC Release Build
bash-5.2$ gvim CMakePresets.json 
bash-5.2$ cmake --workflow gcc-debug
Executing workflow step 1 of 3: configure preset "gcc-debug"

Preset CMake variables:

  BEMAN_BUILDSYS_SANITIZER="MaxSan"
  CMAKE_BUILD_TYPE="Debug"
  CMAKE_CXX_STANDARD="20"
  CMAKE_TOOLCHAIN_FILE="cmake/gnu-toolchain.cmake"

-- The CXX compiler identification is AppleClang 16.0.0.16000026
-- Detecting CXX compiler ABI info
-- Detecting CXX compiler ABI info - done
-- Check for working CXX compiler: /usr/bin/g++ - skipped
-- Detecting CXX compile features
-- Detecting CXX compile features - done
-- The C compiler identification is AppleClang 16.0.0.16000026
-- Detecting C compiler ABI info
-- Detecting C compiler ABI info - done
-- Check for working C compiler: /usr/bin/gcc - skipped
-- Detecting C compile features
-- Detecting C compile features - done
-- Found Python3: /usr/local/Frameworks/Python.framework/Versions/3.13/bin/python3.13 (found version "3.13.1") found components: Interpreter
-- Performing Test CMAKE_HAVE_LIBC_PTHREAD
-- Performing Test CMAKE_HAVE_LIBC_PTHREAD - Success
-- Found Threads: TRUE
Examples to be built: fibonacci
-- Configuring done (16.5s)
-- Generating done (0.0s)
-- Build files have been written to: /Users/clausklein/Workspace/cpp/beman-project/inplace_vector/build/gcc-debug

Executing workflow step 2 of 3: build preset "gcc-debug"

[1/20] Building CXX object _deps/googletest-build/googletest/CMakeFiles/gtest_main.dir/src/gtest_main.cc.o
FAILED: _deps/googletest-build/googletest/CMakeFiles/gtest_main.dir/src/gtest_main.cc.o 
ccache /usr/bin/g++  -isystem /Users/clausklein/Workspace/cpp/beman-project/inplace_vector/build/gcc-debug/_deps/googletest-src/googletest/include -isystem /Users/clausklein/Workspace/cpp/beman-project/inplace_vector/build/gcc-debug/_deps/googletest-src/googletest -fsanitize=address -fsanitize=leak -fsanitize=pointer-compare -fsanitize=pointer-subtract -fsanitize=undefined -g -std=c++20 -isysroot /Applications/Xcode.app/Contents/Developer/Platforms/MacOSX.platform/Developer/SDKs/MacOSX15.2.sdk -mmacosx-version-min=14.7  -DGTEST_HAS_PTHREAD=1 -MD -MT _deps/googletest-build/googletest/CMakeFiles/gtest_main.dir/src/gtest_main.cc.o -MF _deps/googletest-build/googletest/CMakeFiles/gtest_main.dir/src/gtest_main.cc.o.d -o _deps/googletest-build/googletest/CMakeFiles/gtest_main.dir/src/gtest_main.cc.o -c /Users/clausklein/Workspace/cpp/beman-project/inplace_vector/build/gcc-debug/_deps/googletest-src/googletest/src/gtest_main.cc
clang++: error: unsupported option '-fsanitize=leak' for target 'x86_64-apple-darwin23.6.0'

[ClausKlein]

The appleclang presets doest use apple-clang`?

bash-5.2$ cmake --workflow appleclang-debug
Executing workflow step 1 of 3: configure preset "appleclang-debug"

Preset CMake variables:

  BEMAN_BUILDSYS_SANITIZER="MaxSan"
  CMAKE_BUILD_TYPE="Debug"
  CMAKE_CXX_STANDARD="20"
  CMAKE_TOOLCHAIN_FILE="cmake/appleclang-toolchain.cmake"

-- The CXX compiler identification is Clang 19.1.7
-- Detecting CXX compiler ABI info
-- Detecting CXX compiler ABI info - done
-- Check for working CXX compiler: /usr/local/opt/llvm/bin/clang++ - skipped
-- Detecting CXX compile features
-- Detecting CXX compile features - done
-- The C compiler identification is Clang 19.1.7
-- Detecting C compiler ABI info
-- Detecting C compiler ABI info - done
-- Check for working C compiler: /usr/local/opt/llvm/bin/clang - skipped
-- Detecting C compile features
-- Detecting C compile features - done
-- Found Python3: /usr/local/Frameworks/Python.framework/Versions/3.13/bin/python3.13 (found version "3.13.1") found components: Interpreter
-- Performing Test CMAKE_HAVE_LIBC_PTHREAD
-- Performing Test CMAKE_HAVE_LIBC_PTHREAD - Success
-- Found Threads: TRUE
Examples to be built: fibonacci
-- Configuring done (24.3s)
-- Generating done (0.0s)
-- Build files have been written to: /Users/clausklein/Workspace/cpp/beman-project/inplace_vector/build/appleclang-debug

Executing workflow step 2 of 3: build preset "appleclang-debug"
...

[wusatosi]

apple clang doesn't have a specific binary location. It uses the default clang++'s location. It is impossible to avoid collision here, the only thing we can do is add a check in the main CMake file to fail if clang is detected when apple clang is requested.

[wusatosi]

you keep the presets as they are, disable presets not intended for this build host OS.

I see your point. But I don't think this kind of hand-holding brings that much value. Plus, I do want my end user to know msvc and apple clang is officially supported.

If you have such a strong opinion, provide a patch upstream to exemplar and we can collect more feedback from other ppl, maybe I am wrong.

[wusatosi]

I use gcc-14 and clang-19.

Good for you, use gcc-debug. We will add a clang-debug in the future, but not this PR.

I don´t use apple clang compiler. It does not support current std's!

My aim for this library is to support as much ecosystem as possible within a reasonable maintenance burden.

This kind of presets are very restricted, but not usable

If you have a better idea, submit a clean, helpful, standalone, reviewable PR to exemplar. This repo is for inplace vector and I don't want to deal with infrastructure other than syncing to exemplar or very minor changes.

CK, most of your input has been a waste of our time. If you want to create an impact for the open source community, I suggest you observe and learn how other contributors provide value before eagerly spreading your CMake best practices.

[wusatosi]

Removing appleclang and MSVC support temporarily