// Copyright (C) 2023 The Qt Company Ltd.
// SPDX-License-Identifier: LicenseRef-Qt-Commercial OR GFDL-1.3-no-invariants-only

// **********************************************************************
// NOTE: the sections are not ordered by their logical order to avoid
// reshuffling the file each time the index order changes (i.e., often).
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/*!
    \page creator-tool-chains.html
    \previouspage creator-how-tos.html

    \ingroup creator-how-to-manage-kits

    \title Add compilers

    You can develop Qt applications on several 32-bit and 64-bit platforms.
    Usually, you can build Qt applications on each platform with GCC, a
    vendor-supplied compiler, or a third party compiler. In \QC, a
    \l{Managing kits}{kit} specifies the compiler and other
    necessary tools for building an application for and running it on a
    particular platform.

    \QC automatically detects the compilers that your system or
    \l{Get and Install Qt}{\QOI} registers and lists them in
    \preferences > \uicontrol Kits > \uicontrol Compilers.

    \image {qtcreator-preferences-compilers.webp} {Compilers tab in Kits preferences}

    To refresh the list of automatically detected compilers, select
    \uicontrol {Re-detect}.

    \note On \macos, the \c ccache C/C++ compiler cache is detected
    automatically only if you installed it using Homebrew or MacPorts.
    When using MacPorts, you also need to create symlinks, as instructed in
    \l{https://trac.macports.org/wiki/howto/ccache}{How to enable ccache}
    in the MacPorts wiki.

    \section1 Re-detect compilers

    When \QC finds an x86_64 GCC compiler, it sets up an instance for the native
    x86_64 target. If you plan to create also 32-bit x86 binaries without using
    a dedicated cross-compiler, select \uicontrol {Auto-detection Settings} >
    \uicontrol {Detect x86_64 GCC compilers as x86_64 and x86}. Then select
    \uicontrol Re-detect to refresh the list of automatically detected
    compilers.

    To remove manually added compilers, select \uicontrol Remove or
    \uicontrol {Remove All}.

    \section1 Add C or C++ compilers

    To add a C or C++ compiler:

    \list 1
        \li Select \preferences > \uicontrol Kits > \uicontrol Compilers.
        \li Select \uicontrol Add to add a new compiler or \uicontrol Clone to
            add another version of the selected compiler.
        \li Select a compiler in the list.
        \li \l{Set compiler preferences} according to the selected compiler.
    \endlist

    \section1 Supported compilers

    You can add the following compilers to build applications by using other
    compilers or by using other versions of the automatically detected
    compilers.

    \table
    \header
        \li Compiler
        \li Description
    \row
        \li Clang
        \li A C, C++, Objective C, and Objective C++ front-end for the
            LLVM compiler for Windows, Linux, and \macos.
    \row
        \li \l{https://clang.llvm.org/docs/UsersManual.html#clang-cl}{clang-cl}
        \li An alternative command-line interface to Clang that is compatible
            with the Visual C++ compiler, \c cl.exe.
    \row
        \li GCC (GNU Compiler Collection)
        \li A compiler for Linux and \macos.
    \row
        \li ICC (Intel C++ Compiler)
        \li A group of C and C++ compilers. Only the GCC-compatible variant,
            available for Linux and \macos, is currently supported by \QC.
    \row
        \li MinGW (Minimalist GNU for Windows)
        \li A native software port of GCC and GNU Binutils for use in the
            development of native Microsoft Windows applications on Windows.
            \MinGW is distributed together with \QC and Qt for Windows.
    \row
        \li MSVC (Microsoft Visual C++ Compiler)
        \li A C++ compiler that is installed with Microsoft Visual Studio.
    \row
        \li Nim
        \li The Nim compiler for Windows, Linux, and \macos.
    \row
        \li QCC
        \li The interface for compiling C++ applications for QNX.
    \row
        \li Custom
        \li Other than the listed compilers and remote compilers.
    \endtable

    The emscripten compiler is toolchain for compiling to
    \l{Building applications for the web}{WebAssembly}.

    \section2 Bare-metal compilers

    In addition, the \QC Bare Metal Device plugin supports the
    following compilers.

    \table
    \header
        \li Compiler
        \li Description
    \row
        \li \l{https://www.iar.com/iar-embedded-workbench/}{IAREW}
        \li A group of C and C++ bare-metal compilers from the various
            IAR Embedded Workbench development environments.
            Currently supported architectures are \c 8051, \c AVR, \tm Arm,
            \c STM8, and \c MSP430.
    \row
        \li \l{https://www.keil.com}{KEIL}
        \li A group of C and C++ bare-metal compilers from the various KEIL
            development environments.
            Currently supported architectures are \c 8051 and \tm Arm.
    \row
        \li \l{http://sdcc.sourceforge.net}{SDCC}
        \li An optimizing C bare-metal compiler for various architectures.
            Currently supported architectures are \c 8051 and \c STM8.
    \endtable

    \section1 Troubleshoot \MinGW compilation errors

    If error messages displayed in \l {Compile Output} contain
    paths where slashes are missing (for example, \c {C:QtSDK}),
    check your PATH variable. At the command line, enter the following commands:

    \code
        where sh.exe
        where make.exe
        where mingw32-make.exe
    \endcode

    If these commands show paths, they have been added to the global PATH
    variable during the installation of a toolchain based on Cygwin or \MinGW,
    even though this is against Windows conventions.

    To keep working with the third-party toolchain, create a new shell link
    that adds the required paths (as Visual Studio and Qt do). The shell link
    must point to \c cmd.exe:

    \c {C:\Windows\System32\cmd.exe /K C:\path_to\myenv.bat}

    where the /K parameter carries out the command specified in the bat file.

    Create the \c myenv.bat file at \e path_to, which should be in a convenient
    location. In the file, specify the paths to the toolchains. For example,

    \c  {set PATH=C:\path1;C:\path2;%PATH%}

    where \e path1 and \e path2 are paths to the toolchains.

    Finally, remove the paths from the global PATH, reboot the computer, and
    run the \c where commands again to verify that the global PATH is now clean.

    You can use the shell link to run the tools in the third-party toolchains.

    \sa {Manage kits}{How to: Manage kits}, {Managing kits},
    {Developing for Bare Metal Devices}, {Supported platforms}
*/

/*!
    \page creator-preferences-kits-compilers.html
    \previouspage creator-how-tos.html

    \ingroup creator-how-to-manage-kits

    \title Set compiler preferences

    Go to \preferences > \uicontrol Kits > \uicontrol Compilers, to view the
    registered compilers. You can add custom compilers to the list.

    To build an application using GCC, \MinGW, Clang, or QCC, specify the path
    to the directory where the compiler is located and select
    the application binary interface (ABI) version from the list of available
    versions. You can also create a custom ABI definition.
    For QCC, also specify the path to the QNX Software Development Platform
    (SDP) in \uicontrol {SPD path}.

    To enable Microsoft Visual C++ Compilers (MSVC) and clang-cl to find system
    headers, libraries, and the linker, \QC executes them inside a command
    prompt where you set up the environment using \c {vcvarsall.bat}. For
    these compilers, you also specify the path to the script that sets up the
    command prompt in \uicontrol Initialization.

    You specify the compiler to use for each kit in \preferences >
    \uicontrol Kits.

    To set compiler preferences according to the compiler type:

    \list 1

        \li Go to \preferences > \uicontrol Kits > \uicontrol Compilers.

        \li Select a compiler in the list.

        \list

        \li In \uicontrol Name, enter a name for the compiler to
            identify it in \QC.

            \image {qtcreator-preferences-compilers-clang-cl.webp} {Adding a clang-cl compiler in the Compilers tab in Kits preferences}
            \caption Adding a clang-cl compiler.

        \li In \uicontrol {C compiler path}, enter the path to the
            directory where the C compiler is located.

            Select \uicontrol Remote in the dropdown menu in \uicontrol Browse
            (\uicontrol Choose on \macos) to add the path to the compiler on a
            remote Linux device or in Docker.

        \li In \uicontrol {C++ compiler path}, select
            \uicontrol {Provide manually} to enter the path
            to the directory where the C++ compiler is located.

            Select \uicontrol Remote to add the path to the compiler on a
            remote Linux device or in Docker.

        \li In \uicontrol Initialization, select the
            \c {vcvarsall.bat} file for setting up the command
            prompt to use.

            \image {qtcreator-preferences-compilers-clang.webp} {Adding a Clang compiler in the Compilers tab in Kits preferences}
            \caption Adding a Clang compiler.

        \li In \uicontrol {Platform codegen flags}, check the flags passed
            to the compiler that specify the architecture on the target
            platform.

        \li In \uicontrol {Platform linker flags}, check the flags passed to the
            linker that specify the architecture on the target platform.

        \li In \uicontrol {Target triple}, specify the GCC target
            architecture. If code model services fail because
            Clang does not understand the target architecture, select
            \uicontrol {Override for code model}.

        \li In \uicontrol {Parent toolchain}, select a \MinGW
            compiler, which is needed because Clang does not have its own
            standard library.

            \image {qtcreator-preferences-compilers-qcc.webp} {Adding a QCC compiler in the Compilers tab in Kits preferences}
            \caption Adding a QCC compiler.

        \li In \uicontrol {SDP path}, specify the path to the QNX
            Software Development Platform (SDP).

        \li In \uicontrol ABI, enter an identifier for the
            target architecture. This is used to warn about ABI mismatches
            within the kits.
    \endlist
    \endlist

    \sa {Manage kits}{How to: Manage kits}, {Managing kits},
    {Supported platforms}
*/

/*!
    \page creator-how-to-add-custom-compilers.html
    \previouspage creator-how-tos.html

    \ingroup creator-how-to-manage-kits

    \title Add custom compilers

    To add a compiler that is not listed \preferences >
    \uicontrol Kits > \uicontrol Compilers or to add a remote compiler, use the
    \uicontrol Custom option. Specify the paths to the directories where the
    compiler and make tool are located and set preferences for the compiler.

    \image {qtcreator-preferences-compilers-custom.webp} {Compilers tab in Kits preferences}

    To add other compilers:

    \list 1

        \li Select \preferences > \uicontrol Kits >
            \uicontrol Compilers > \uicontrol Add > \uicontrol Custom.

        \li In \uicontrol Name, enter a name for the compiler.

        \li In \uicontrol {C compiler path}, enter the path to the
            directory where the C compiler is located.

            Select \uicontrol Remote in the dropdown menu in \uicontrol Browse
            (\uicontrol Choose on \macos) to add the path to the compiler on a
            remote Linux device or in Docker.

        \li In \uicontrol {C++ compiler path}, select
            \uicontrol {Provide manually} to enter the path
            to the directory where the C++ compiler is located.

            Select \uicontrol Remote to add the path to the compiler on a
            remote Linux device or in Docker.

        \li In \uicontrol {Make path}, enter the path to the directory where
            the make tool is located.

       \li  In \uicontrol ABI, specify the ABI version.

        \li In \uicontrol {Predefined macros}, specify the macros that the
            compiler enables by default. Specify each macro on a separate line,
            in the following format: MACRO[=value].

        \li In \uicontrol {Header paths}, specify the paths to directories
            that the compiler checks for headers. Specify each path on a
            separate line.

        \li In \uicontrol {C++11 flags}, specify the flags that turn on
            C++11 support in the compiler.

        \li In \uicontrol {Qt mkspecs}, specify the path to the directory
            where mkspecs are located. Usually, the path is specified relative
            to the Qt mkspecs directory.

        \li In \uicontrol {Error parser}, select the error parser to use.
            You can add custom output parsers to the list. Select
            \uicontrol {Custom Parser Settings} to view and edit their preferences.
    \endlist

    \sa {Manage kits}{How to: Manage kits}, {Managing kits},
    {Add custom output parsers}
*/
