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New cppstd for apple-clang #3002

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Feb 21, 2023
Merged

New cppstd for apple-clang #3002

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f929ac1
new cppstd for apple-clang
czoido Feb 21, 2023
e393256
Update reference/config_files/profiles.rst
czoido Feb 21, 2023
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43 changes: 29 additions & 14 deletions reference/config_files/profiles.rst
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Original file line number Diff line number Diff line change
Expand Up @@ -41,38 +41,53 @@ and edited later. If you don't specify a *name*, the command will create the ``d
:caption: *Creating the Conan default profile*

$ conan profile detect
Found apple-clang 12.0
apple-clang>=13, using the major as version
Detected profile:
[settings]
arch=x86_64
build_type=Release
compiler=apple-clang
compiler.cppstd=gnu98
compiler.cppstd=gnu17
compiler.libcxx=libc++
compiler.version=12.0
compiler.version=14
os=Macos

WARN: This profile is a guess of your environment, please check it.
WARN: The output of this command is not guaranteed to be stable and can change in future Conan versions
WARN: Defaulted to cppstd='gnu17' for apple-clang.
WARN: The output of this command is not guaranteed to be stable and can change in future Conan versions.
WARN: Use your own profile files for stability.
Saving detected profile to [CONAN_HOME]/profiles/default


.. note:: **A note about the detected C++ standard by Conan**

Conan will always set the default C++ standard as the one that the detected compiler
version uses by default, except for the case of macOS using apple-clang. In this case,
for apple-clang>=11, it sets ``compiler.cppstd=gnu17``. If you want to use a different
C++ standard, you can edit the default profile file directly. First, get the location
of the default profile using:

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.. code-block:: bash
:caption: *Creating another profile: myprofile*

$ conan profile detect --name myprofile
Found apple-clang 12.0
Found apple-clang 14.0
apple-clang>=13, using the major as version
Detected profile:
[settings]
arch=x86_64
build_type=Release
compiler=apple-clang
compiler.cppstd=gnu98
compiler.cppstd=gnu17
compiler.libcxx=libc++
compiler.version=12.0
compiler.version=14
os=Macos

WARN: This profile is a guess of your environment, please check it.
WARN: The output of this command is not guaranteed to be stable and can change in future Conan versions
WARN: Defaulted to cppstd='gnu17' for apple-clang.
WARN: The output of this command is not guaranteed to be stable and can change in future Conan versions.
WARN: Use your own profile files for stability.
Saving detected profile to [CONAN_HOME]/profiles/myprofile


Expand Down Expand Up @@ -122,19 +137,19 @@ You can also show the profile's content per context:
arch=x86_64
build_type=Release
compiler=apple-clang
compiler.cppstd=gnu98
compiler.cppstd=gnu17
compiler.libcxx=libc++
compiler.version=12.0
compiler.version=14
os=Macos

Build profile:
[settings]
arch=x86_64
build_type=Release
compiler=apple-clang
compiler.cppstd=gnu98
compiler.cppstd=gnu17
compiler.libcxx=libc++
compiler.version=12.0
compiler.version=14
os=Macos


Expand All @@ -161,9 +176,9 @@ List of settings available from :ref:`reference_config_files_settings_yml`:
arch=x86_64
build_type=Release
compiler=apple-clang
compiler.cppstd=gnu98
compiler.cppstd=gnu17
compiler.libcxx=libc++
compiler.version=12.0
compiler.version=14
os=Macos


Expand Down
15 changes: 7 additions & 8 deletions tutorial/consuming_packages/build_simple_cmake_project.rst
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Expand Up @@ -142,27 +142,26 @@ line. An example of the output of this command for MacOS would be:
arch=x86_64
build_type=Release
compiler=apple-clang
compiler.cppstd=gnu98
compiler.cppstd=gnu17
compiler.libcxx=libc++
compiler.version=14
os=Macos

.. note:: **A note about the detected C++ standard by Conan**

Conan will always set the default C++ standard as the one that the detected compiler
version uses by default. In this case, for apple-clang 14, it sets
``compiler.cppstd=gnu98`` but as we are going to use libraries through the tutorial that
require a higher C++ standard, we have to update our profile to use at least C++ 11. To do
that, you can edit the default profile file directly. First, get the location of the
default profile using:
version uses by default, except for the case of macOS using apple-clang. In this case,
for apple-clang>=11, it sets ``compiler.cppstd=gnu17``. If you want to use a different
C++ standard, you can edit the default profile file directly. First, get the location
of the default profile using:

.. code-block:: bash

$ conan profile path default
/Users/user/.conan2/profiles/default

Then open and edit the file and set ``compiler.cppstd`` to at least C++ 11, by setting
``compiler.cppstd=gnu11`` or ``compiler.cppstd=11``
Then open and edit the file and set ``compiler.cppstd`` to the C++ standard you want
to use.

We will use Conan to install **Zlib** and generate the files that CMake needs to
find this library and build our project. We will generate those files in the folder
Expand Down