Usage: configure [options] [assignments]
Configure understands variable assignments like VAR=value on the command line.
These override any values possibly obtained from pkg-config. The variables
are mentioned in the descriptions of the options they relate to.
It is also possible to manipulate any QMAKE_* variable, to amend the values
from the mkspec for the build of Qt itself, e.g., QMAKE_CXXFLAGS+=-g3.
在命令行配置变量,如var=值。这将覆盖从pkg-config获得的变量值
也可以在mkspec中通过操作qmake_*变量来构建Qt应用程序，例如，qmake_cxxflags += - G3。
顶级安装目录：
Top-level installation directories:
-prefix <dir> ...... The deployment directory, as seen on the target device.
[/usr/local/Qt-$QT_VERSION, $PWD if -developer-build]
部署目录，在目标设备上看到的。
-extprefix <dir> ... The installation directory, as seen on the host machine.
[SYSROOT/PREFIX]
安装目录，在主机上看到的
-hostprefix [dir] .. The installation directory for build tools running on
the host machine. If [dir] is not given, the current
build directory will be used. [EXTPREFIX]
安装目录:在主机上正在编译的生成工具的安装目录。如果未给出，则为当前目录
-external-hostbindir <path> ... Path to Qt tools built for this machine.
Use this when -platform does not match the current
system, i.e., to make a Canadian Cross Build.
为该机器构建的Qt工具路径,当-platform与当前系统不匹配时使用此选项,如交叉编译???
Fine tuning of installation directory layout. Note that all directories
except -sysconfdir should be located under -prefix/-hostprefix:
安装目录布局的微调。请注意，所有目录除sysconfdir应位于在-prefix/-hostprefix指定的目录下面：
-bindir <dir> ......... Executables [PREFIX/bin]可执行文件路径
-headerdir <dir> ...... Header files [PREFIX/include]头文件路径
-libdir <dir> ......... Libraries [PREFIX/lib]库文件路径
-archdatadir <dir> .... Arch-dependent data [PREFIX]依赖平台数据
-plugindir <dir> ...... Plugins [ARCHDATADIR/plugins]插件路径
-libexecdir <dir> ..... Helper programs [ARCHDATADIR/bin on Windows,
ARCHDATADIR/libexec otherwise]
辅助程序(外部调用程序???)
-importdir <dir> ...... QML1 imports [ARCHDATADIR/imports]QML1入口
-qmldir <dir> ......... QML2 imports [ARCHDATADIR/qml]QML2入口
-datadir <dir> ........ Arch-independent data [PREFIX]独立的平台数据
-docdir <dir> ......... Documentation [DATADIR/doc]文档
-translationdir <dir> . Translations [DATADIR/translations]翻译
-sysconfdir <dir> ..... Settings used by Qt programs [PREFIX/etc/xdg]Qt程序配置目录
-examplesdir <dir> .... Examples [PREFIX/examples]例子目录
-testsdir <dir> ....... Tests [PREFIX/tests]测试目录
-hostbindir <dir> ..... Host executables [HOSTPREFIX/bin]主机可执行程序目录
-hostlibdir <dir> ..... Host libraries [HOSTPREFIX/lib]主机库目录
-hostdatadir <dir> .... Data used by qmake [HOSTPREFIX]qmake使用的数据目录
Conventions for the remaining options: When an option's description is
followed by a list of values in brackets, the interpretation is as follows:
'yes' represents the bare option; all other values are possible prefixes to
the option, e.g., -no-gui. Alternatively, the value can be assigned, e.g.,
--gui=yes. Values are listed in the order they are tried if not specified;
'auto' is a shorthand for 'yes/no'. Solitary 'yes' and 'no' represent binary
options without auto-detection.
选项的约定:括号中的值，解释如下：
(以"-libpng... Select used libpng [system/qt/no]"为例)
1)"yes"不用明确指出(-libpng),括号中其他的值可以作为前缀,如"-qt-libpng";
2)也可以用--libpng=qt的格式来表示
3)"auto"是"yes"和"no"的简写,代表[yes/no]
4)只出现"yes"或"no",说明该选项不能自动检查,裁剪时要特别留意
Configure meta:
元配置
-help, -h ............ Display this help screen显示帮助
-verbose, -v ......... Print verbose messages during configuration打印详细配置信息
-continue ............ Continue configure despite errors尽管有错,但继续配置
-redo ................ Re-configure with previously used options.
Additional options may be passed, but will not be
saved for later use by -redo.
使用以前的选项重新配置,可以添加附加选项,但不会保持
-recheck ............. Discard cached negative configure test results.
Use this after installing missing dependencies.
测试配置结果;当安装依赖缺失是,使用该选项
-recheck-all ......... Discard all cached configure test results.
测试配置结果
Build options:
编译选项:
-opensource .......... Build the Open-Source Edition of Qt:创建开源版本的Qt
-commercial .......... Build the Commercial Edition of Qt:创建商业版本的Qt
-confirm-license ..... Automatically acknowledge the license
自动确认许可
-release ............. Build Qt with debugging turned off [yes]
发行版本
-debug ............... Build Qt with debugging turned on [no]
调试版本
-debug-and-release ... Build two versions of Qt, with and without
debugging turned on [yes] (Apple and Windows only)
创建发行和编译版本(只有苹果和windows系统支持)
-optimized-tools ..... Build optimized host tools even in debug build [no]
即使在调试版本中也进行优化
-force-debug-info .... Create symbol files for release builds [no]
为发行版本创建符号文件
-separate-debug-info . Split off debug information to separate files [no]
将调试信息分离到文件中
-strip ............... Strip release binaries of unneeded symbols [yes]
发行版:将不必要的符号表剔除,
-force-asserts ....... Enable Q_ASSERT even in release builds [no]
即使在发行版本中也使能断言
-developer-build ..... Compile and link Qt for developing Qt itself
(exports for auto-tests, extra checks, etc.) [no]
编译和链接qt本身
-shared .............. Build shared Qt libraries [yes] (no for UIKit)
创建共享库
-static .............. Build static Qt libraries [no] (yes for UIKit)
创建静态库
-framework ........... Build Qt framework bundles [yes] (Apple only)
构建Qt框架捆绑(只在苹果系统中)
-platform <target> ... Select host mkspec [detected]
选择主机中mkspec目录下的相应配置
-host-option <key=value> ..... Add option for the host mkspec
添加主机mkspec选项
-xplatform <target> .. Select target mkspec when cross-compiling [PLATFORM]
交叉编译时选目标板的mkspec
-device <name> ....... Cross-compile for device <name>
制定设备的交叉编译
-device-option <key=value> ... Add option for the device mkspec
添加设备的mkspec选项
-qtnamespace <name> .. Wrap all Qt library code in 'namespace <name> {...}'.
在“命名空间<名称> {…}”中封装所有Qt库代码。
-qtlibinfix <infix> .. Rename all libQt5*.so to libQt5*<infix>.so.
重命名所有libqt5 *,格式如libQt5*<infix>.so。
-testcocoon .......... Instrument with the TestCocoon code coverage tool [no]
testcocoon代码覆盖工具
-gcov ................ Instrument with the GCov code coverage tool [no]
GCov代码覆盖工具
-sanitize {address|thread|memory|undefined}
Instrument with the specified compiler sanitizer.
使用特定的编译器检查(地址|线程|寄存器|未定义)错误
-c++std <edition> .... Select C++ standard <edition> [c++1z/c++14/c++11]
(Not supported with MSVC)
选择++C标准版本
-rtti ................ Build with Runtime Type Information [yes] (MSVC only)
创建运行时类型信息
-sse2 ................ Use SSE2 instructions [auto]
使用SSE2指令
-sse3/-ssse3/-sse4.1/-sse4.2/-avx/-avx2/-avx512
Enable use of particular x86 instructions [auto]
启用特定x86指令的使用
Enabled ones are still subject to runtime detection.
启用的仍然受到运行时检测
-mips_dsp/-mips_dspr2 Use MIPS DSP/rev2 instructions [auto]
使用MIPS DSP 指令
-qreal <type> ........ typedef qreal to the specified type. [double]
Note: this affects binary compatibility.
qreal定义为指定的类型;注意：这会影响二进制兼容性。
-R <string> .......... Add an explicit runtime library path to the Qt
libraries. Supports paths relative to LIBDIR.
向显式添加Qt库运行库路径。支持相对路径
-rpath ............... Link Qt libraries and executables using the library
install path as a runtime library path. Similar to
-R LIBDIR. On Apple platforms, disabling this implies
using absolute install names (based in LIBDIR) for
dynamic libraries and frameworks. [auto]
链接Qt库和可执行文件时,使用库安装路径作为一个运行库路径。类似于-R libdir。在苹果的平台上，这意味着使用绝对禁用安装名称（总部设在LIBDIR）的动态库和框架。
-reduce-exports ...... Reduce amount of exported symbols [auto]
减少输出符号的数量
-reduce-relocations .. Reduce amount of relocations [auto] (Unix only)
减少重定位的数量
-plugin-manifests .... Embed manifests into plugins [no] (Windows only)
嵌入的插件
-static-runtime ...... With -static, use static runtime [no] (Windows only)
与-static一同使用，在静态运行时
-pch ................. Use precompiled headers [auto]
使用预编译头文件
-ltcg ................ Use Link Time Code Generation [no]
使用链接时间代码生成
-use-gold-linker ..... Use the GNU gold linker [auto]
使用GUN全局链接器
-incredibuild-xge .... Use the IncrediBuild XGE [no] (Windows only)
-make-tool <tool> .... Use <tool> to build qmake [nmake] (Windows only)
使用tool去创建qmake
-mp .................. Use multiple processors for compilation (MSVC only)
使用多个处理器去编译
-warnings-are-errors . Treat warnings as errors [no; yes if -developer-build]
将警告视为错误
-silent .............. Reduce the build output so that warnings and errors
can be seen more easily
减少编译输出，使警告和错误更容易看到
Build environment:
构建环境
-sysroot <dir> ....... Set <dir> as the target sysroot
设置为目标的sysroot目录(系统root目录)
-gcc-sysroot ......... With -sysroot, pass --sysroot to the compiler [yes]
与-sysroot一起使用,将--sysroot传给编译器
-pkg-config .......... Use pkg-config [auto] (Unix only)
-D <string> .......... Pass additional preprocessor define
添加预定义
-I <string> .......... Pass additional include path
添加头文件路径
-L <string> .......... Pass additional library path
添加库路径
-F <string> .......... Pass additional framework path (Apple only)
添加框架路径(只在苹果系统上)
-sdk <sdk> ........... Build Qt using Apple provided SDK <sdk>. The argument
should be one of the available SDKs as listed by
'xcodebuild -showsdks'.
Note that the argument applies only to Qt libraries
and applications built using the target mkspec - not
host tools such as qmake, moc, rcc, etc.
利用苹果建立Qt提供SDK < SDK >。应该是在"xcodebuild - showsdks"上一个可用的SDK。
注意该参数仅适用于使用目标mkspec不是主机工具如qmake，moc，使用目标板的mkspec建成的Qt库和应用程序。
-android-sdk path .... Set Android SDK root path [$ANDROID_SDK_ROOT]
-android-ndk path .... Set Android NDK root path [$ANDROID_NDK_ROOT]
-android-ndk-platform Set Android platform
-android-ndk-host .... Set Android NDK host (linux-x86, linux-x86_64, etc.)
[$ANDROID_NDK_HOST]
-android-arch ........ Set Android architecture (armeabi, armeabi-v7a,
arm64-v8a, x86, x86_64, mips, mips64)
-android-toolchain-version ... Set Android toolchain version
-android-style-assets Automatically extract style assets from the device at
run time. This option makes the Android style behave
correctly, but also makes the Android platform plugin
incompatible with the LGPL2.1. [yes]
在运行时自动从设备中提取样式资产。此选项会使Android风格的正确的行为，也使得Android平台的lgpl2.1插件不兼容。
Component selection:
组成选项(裁剪)
-skip <repo> ......... Exclude an entire repository from the build.
整个库都不包含(由自己去逐个添加???)。
-make <part> ......... Add <part> to the list of parts to be built.
Specifying this option clears the default list first.
[libs and examples, also tools if not cross-building,
also tests if -developer-build]
将<part>添加到要建造的部件列表中。首先清除默认列表,再指定此选项。
-nomake <part> ....... Exclude <part> from the list of parts to be built.
从要构建的部件列表中排除
-compile-examples .... When unset, install only the sources of examples [yes]
如果没有设置,将只安装源码中的例子
-gui ................. Build the Qt GUI module and dependencies [yes]
构建GUI模块和依赖
-widgets ............. Build the Qt Widgets module and dependencies [yes]
构建widgets模块和依赖
-no-dbus ............. Do not build the Qt D-Bus module
[default on Android and Windows]
不构建D-Bus
-dbus-linked ......... Build Qt D-Bus and link to libdbus-1 [auto]
构建D-Bus并与libdbus-1链接
-dbus-runtime ........ Build Qt D-Bus and dynamically load libdbus-1 [no]
DBUS_PATH= DBUS_HOST_PATH=
构建D-Bus并动态调用libdbus-1库
-feature-<feature> ... Enable <feature>. The available features are described
in src/corelib/global/qfeatures.txt. [all enabled]
启用<功能>。可用的功能在src/corelib/global/qfeatures.txt中描述
-accessibility ....... Enable accessibility support [yes]
Note: Disabling accessibility is not recommended.
启用可访问性支持;注意：禁用可访问性不推荐
-qml-debug ........... Enable QML debugging support [yes]
启动QML调试支持
Qt comes with bundled copies of some 3rd party libraries. These are used
by default if auto-detection of the respective system library fails.
Qt附带捆绑一些第三方库的副本。如果没有在系统库中检测到,将去这些库中查找。
Core options:
核心选项：
-doubleconversion .... Select used double conversion library [system/qt/no]
No implies use of sscanf_l and snprintf_l (imprecise).
双转换的…选择使用双转换库.不意味着使用sscanf_l和snprintf_l???
-glib ................ Enable Glib support [no; auto on Unix]
使能Glib
-eventfd ............. Enable eventfd support
使能eventfd;(eventfd:linux系统调用，为事件通知创建文件描述符。)
-inotify ............. Enable inotify support
使能inotify;监控文件系统操作
-iconv ............... Enable iconv(3) support [posix/sun/gnu/no] (Unix only)
使能iconv:字符编码转换,国际编码格式间进行文本内码转换
-icu ................. Enable ICU support [auto]
使能ICU:用于支持软件国际化的开源项目,根据各地的风俗和语言习惯，实现对数字、货币、时间、日期、和消息的格式化、解析，对字符串进行大小写转换、整理、搜索和排序等功能
-pps ................. Enable PPS support [auto] (QNX only)
使能PPS:QNX的持久的发布/订阅（PPS）服务
-pcre ................ Select used libpcre3 [system/qt]
使能pcre;PCRE(Perl Compatible Regular Expressions中文含义：perl语言兼容正则表达式)C语言编写的正则表达式函数库
-zlib ................ Select used zlib [system/qt]
使能zlib
ZLIB_LIBS=
Logging backends:
后端日志
-journald .......... Enable journald support [no] (Unix only)
使能Journald;Journald是为Linux服务器打造的新系统日志方式，它标志着文本日志文件的终结。现在日志信息写入到二进制文件，使用journalctl阅读来获得这些信息.
-syslog ............ Enable syslog support [no] (Unix only)
使能syslog
-slog2 ............. Enable slog2 support [auto] (QNX only)
使能slog2;slog2一个高性能的c/c++多线程安全日志库
Network options:
网络选项:
-ssl ................. Enable either SSL support method [auto]
使能SSL
-no-openssl .......... Do not use OpenSSL [default on Apple and WinRT]
不使用OpenSSL
-openssl-linked ...... Use OpenSSL and link to libssl [no]
使用OpenSSL,并且链接libssl库,静态使用
-openssl-runtime ..... Use OpenSSL and dynamically load libssl [auto]
OPENSSL_PATH= OPENSSL_LIBS=, and on Windows also
OPENSSL_LIBS_DEBUG= OPENSSL_LIBS_RELEASE=
使用OpenSSL,并且动态加载libssl库
-securetransport ..... Use SecureTransport [auto] (Apple only)
使用安全传输(只在苹果系统中)
-sctp ................ Enable SCTP support [no]
使能SCTP;SCTP流量控制传输协议,一个传输层协议，是提供基于不可靠传输业务的协议之上的可靠的数据报传输协议
-libproxy ............ Enable use of libproxy [no]
使能代理服务器库???
-system-proxies ...... Use system network proxies by default [yes]
默认使用系统网络代理
Gui, printing, widget options:
GUI，打印，widget选项：
-cups ................ Enable CUPS support [auto] (Unix only)
使能CUPS:CUPS(Common UNIX Printing System，通用Unix打印系统)
-fontconfig .......... Enable Fontconfig support [auto] (Unix only)
使能字体管理库
-freetype ............ Select used FreeType [system/qt/no]
选择freetype;FreeType库是高质量的且可移植的字体引擎，它提供统一的接口来访问多种字体格式文件
-harfbuzz ............ Select used HarfBuzz-NG [system/qt/no]
(Not auto-detected on Apple and Windows)
选择使用HarfBuzz-NG;HarfBuzz-NG:可以用来文字渲染等
-gtk ................. Enable GTK platform theme support [auto]
使能GTK:GTK+（GIMP Toolkit)是一套源码以LGPL许可协议分发、跨平台的图形工具包。
-lgmon ............... Enable lgmon support [auto] (QNX only)
QUNIX（Quick UNIX）的系统:QNX是一种商用的遵从POSIX规范的类Unix实时操作系统最成功的微内核操作系统之一
-no-opengl ........... Disable OpenGL support
禁用OpenGL:开放图形库,提供2D/3D 图形 API
-opengl <api> ........ Enable OpenGL support. Supported APIs:
es2 (default on Windows), desktop (default on Unix),
dynamic (Windows only)
使能OpenGL
-opengles3 ........... Enable OpenGL ES 3.x support instead of ES 2.x [auto]
OpenGL ES (OpenGL for Embedded Systems) 是 OpenGL 三维图形 API 的子集，针对手机、PDA和游戏主机等嵌入式设备而设计。
-angle ............... Use bundled ANGLE to support OpenGL ES 2.0 [auto]
(Windows only)
ANGLE原生图形层引擎;OpenGL ES 2.0 API中的Web GL(3D绘图标准)子集接口
-qpa <name> .......... Select default QPA backend (e.g., xcb, cocoa, windows)
Qt5.0开始，Qt自身不再单独实现窗口系统，QWS不复存在，取而代之的新机制是QPA（Qt平台抽象）
-xcb-xlib............. Enable Xcb-Xlib support [auto]
Xlib:一个用c语言编写的 X Window System 协议的客户端库
Platform backends:
平台的后台
-direct2d .......... Enable Direct2D support [auto] (Windows only)
Direct2D 是一种硬件加速的即时模式二维图形 API，可为二维几何对象、位图和文本提供高性能、高质量的呈现。
-directfb .......... Enable DirectFB support [no] (Unix only)
DirectFB的目的是提供硬件图形加速，目标是提供高级图形运算包括多层alpha，具有矩形三角形填充/绘制的特性。
-eglfs ............. Enable EGLFS support [auto; no on Android and Windows]
eglfs是Qt的一个平台插件,使Qt程序可以利用opengl es画图而无需窗口系统. 这种方式是在支持gpu的嵌入式设备主要采用的方式. 一般需要gpu厂商提供egl和gles驱动模块.
Qt可以利用eglfs插件实现直接画图(全屏),或者在有窗口管理系统(如wayland合成器weston或Qtwayland合成器)时,通过窗口画图.前者只能全屏显示一个程序,后者可以实现多进程应用
-gbm ............... Enable backends for GBM [auto] (Linux only)
-kms ............... Enable backends for KMS [auto] (Linux only)
KMS 就是内核模式设置???终端和X 图形界面使用相同的分辨率
-linuxfb ........... Enable Linux Framebuffer support [auto] (Linux only)
qt库如果是使用-linuxFB选项编译出的，他在启动时会读取环境变量QWS_DISPLAY，用这个来指定qws输出到那个fb上去
-mirclient ......... Enable Mir client support [no] (Linux only)
Mir下一代统一的显示服务器,取代xorg(xorg是X11的一个实现)
-xcb ............... Select used xcb-* libraries [system/qt/no]
(-qt-xcb still uses system version of libxcb itself)
xcb(X protocol C-language BindingX协议的C语言结合)
Input backends:
输入的后台
-evdev ............. Enable evdev support [auto]
使能evdev:输入事件驱动
-imf ............... Enable IMF support [auto] (QNX only)
-libinput .......... Enable libinput support [auto]
输入子设备库
-mtdev ............. Enable mtdev support [auto]
使能多点触控
-tslib ............. Enable tslib support [auto]
使能触摸屏
-xinput2 ........... Enable XInput2 support [auto]
使能手柄输入
-xkbcommon-x11 ..... Select xkbcommon used in combination with xcb
[system/qt/no]
xkbcommon是库来处理键盘的描述，包括从磁盘加载，解析和处理他们的状态
-xkb-config-root <dir> ... With -qt-xkbcommon-x11, set default XKB config
root <dir> [detect]
-xkbcommon-evdev ... Enable X-less xkbcommon in combination with libinput
[auto]
Image formats:
图片格式
-gif ............... Enable reading support for GIF [auto]
-ico ............... Enable support for ICO [yes]图标文件格式
-libpng ............ Select used libpng [system/qt/no]
-libjpeg ........... Select used libjpeg [system/qt/no]
Database options:
数据库支持
-sql-<driver> ........ Enable SQL <driver> plugin. Supported drivers:
db2 ibase mysql oci odbc psql sqlite2 sqlite tds
[all auto]
MYSQL_PATH= PSQL_LIBS= SYBASE= SYBASE_LIBS=
-sqlite .............. Select used sqlite3 [system/qt]
