tools.build:compiler_executables breaks build with Autotools and Xcode

[Nekto89]

tools.build:compiler_executables breaks build with Autotools and Xcode

[jcar87]

Hi @Nekto89 - thank you for reporting this.

Interesting, I can see why this is failing - I'm surprised that cmake is reporting clang and clang++ as the compilers, instead of cc and c++, which is (or used to be) the default behaviour.

What version of CMake are you using?

[Nekto89]

Hi @Nekto89 - thank you for reporting this.

Interesting, I can see why this is failing - I'm surprised that cmake is reporting clang and clang++ as the compilers, instead of cc and c++, which is (or used to be) the default behaviour.

What version of CMake are you using?

cmake version 3.25.1

[jcar87]

I'm unable to reproduce this:

• CMake 3.25.1
• Xcode 14.1

A project like this:

cmake_minimum_required(VERSION 3.25)

project(foobar LANGUAGES C CXX)

CMake will report:

-- The C compiler identification is AppleClang 14.0.0.14000029
-- The CXX compiler identification is AppleClang 14.0.0.14000029
-- Detecting C compiler ABI info
-- Detecting C compiler ABI info - done
-- Check for working C compiler: /Applications/Xcode_14.1.app/Contents/Developer/Toolchains/XcodeDefault.xctoolchain/usr/bin/cc - skipped
-- Detecting C compile features
-- Detecting C compile features - done
-- Detecting CXX compiler ABI info
-- Detecting CXX compiler ABI info - done
-- Check for working CXX compiler: /Applications/Xcode_14.1.app/Contents/Developer/Toolchains/XcodeDefault.xctoolchain/usr/bin/c++ - skipped
-- Detecting CXX compile features
-- Detecting CXX compile features - done
-- Configuring done
-- Generating done

The cc and c++ being detected is what should cause the current logic to do the right thing. Wondering what causes yours to report clang and clang++. Any chance you have set CC/CXX environment variables or similar?
Oh, perhaps it's the use of -GXcode that causes this! I'll have a look

Can reproduce this now with -GXcode - fix incoming!