Question

我按照MinGW-64-bit的说明，使用选项A：在MSYS2-shell＆amp;中构建Qt。 MinGW-w64 Win64 Shell。

gcc -v说：

Using built-in specs.
COLLECT_GCC=gcc
COLLECT_LTO_WRAPPER=C:/msys64/mingw64/bin/../lib/gcc/x86_64-w64-mingw32/6.3.0/lto-wrapper.exe
Target: x86_64-w64-mingw32
Configured with: ../gcc-6.3.0/configure
--build=x86_64-w64-mingw32
--disable-isl-version-check
--disable-libstdcxx-debug
--disable-libstdcxx-pch
--disable-multilib
--disable-nls
--disable-rpath
--disable-symvers
--disable-werror
--disable-win32-registry
--enable-bootstrap
--enable-checking=release
--enable-fully-dynamic-string
--enable-graphite
--enable-languages=c,lto,c++,objc,obj-c++,fortran,ada
--enable-libatomic
--enable-libgomp
--enable-libstdcxx-time=yes
--enable-lto
--enable-shared
--enable-static
--enable-threads=posix
--host=x86_64-w64-mingw32
--libexecdir=/mingw64/lib
--prefix=/mingw64
--target=x86_64-w64-mingw32
--with-arch=x86-64
--with-bugurl=https://sourceforge.net/projects/msys2
--with-gmp=/mingw64
--with-gnu-as
--with-gnu-ld
--with-isl=/mingw64
--with-libiconv
--with-local-prefix=/mingw64/local
--with-mpc=/mingw64
--with-mpfr=/mingw64
--with-native-system-header-dir=/mingw64/x86_64-w64-mingw32/include
--with-pkgversion='Rev1, Built by MSYS2 project'
--with-system-zlib
--with-tune=generic
Thread model: posix
gcc version 6.3.0 (Rev1, Built by MSYS2 project)

我下载了源代码

git clone https://code.qt.io/qt/qt5.git
cd qt5
perl init-repository
git checkout 5.8

我知道还有其他选择：

我在第二个选项（存档）中发现了同样的问题。

安装所有先决条件后，我构建了OpenSSL和ICU - 安装在

中

的/ usr /本地/ OpenSSL的
的/ usr /本地/ ICU

但从那里开始，指示并不那么明确。它声明使用windows命令shell来设置一些环境变量。但后来我使用的是MSYS2 64 Bit shell，所以这些都没有效果。这是我做的：

export INCLUDE=/usr/local/icu/include:/usr/local/openssl/include
export LIB=/usr/local/icu/lib:/usr/local/openssl/lib
export QMAKESPEC=
export QTDIR=
windows2unix() { local pathPcs=() split pathTmp IFS=\;; read -ra split <<< "$*"; for pathTmp in "${split[@],}"; do pathPcs+=( "/${pathTmp//+([:\\])//}" ); done; echo "${pathPcs[*]}"; }; systemrootP=$(windows2unix "$SYSTEMROOT"); export PATH="$PWD/qtbase/bin:$PWD/gnuwin32/bin:/c/msys64/mingw64/bin:/c/msys64/usr/bin:/c/msys64/usr/local/icu/lib"
export MAKE_COMMAND=
./configure -debug-and-release -opensource -confirm-license -platform win32-g++ -developer-build -c++11 -icu -opengl desktop -openssl -plugin-sql-odbc -nomake examples -nomake tests

configure脚本运行一段时间，但随后出现以下错误：

...
Creating qmake................................................................................................Done.
Info: creating stash file C:\msys64\home\asp\qt5\.qmake.stash
Info: creating super cache file C:\msys64\home\asp\qt5\.qmake.super
ERROR: Unknown command line option '-c++11'.

也许我忘了在某个地方设置一些旗帜，但是目前我还是被困在这里。有人知道如何继续吗？

Answer 1

我根据Andrei R.的评论删除了标志 -c ++ 11 ，以及解决这个问题的接缝。

This is the Qt Open Source Edition.
You have already accepted the terms of the Open Source license.
Running configuration tests...
Checking for gold linker... no
Checking for valid makespec... yes
Checking for target architecture... x86_64
Checking for SSE2 instructions... yes
Checking for SSE3 instructions... yes
Checking for SSSE3 instructions... yes
Checking for SSE4.1 instructions... yes
Checking for SSE4.2 instructions... yes
Checking for AVX instructions... yes
Checking for bugfree AVX support in compiler... yes
Checking for AVX2 instructions... yes
Checking for AVX512 F instructions... no
Checking for C++14 support... yes
Checking for C++1z support... yes
Checking for compiler defaulting to C++11 or higher... yes

Answer 2

正确的编译器标志应为 -std = c ++ 11 ，而不是 -c ++ 11 。

无论如何，GCC 6.x隐式使用C ++ 11，所以没有必要。从作者answer中的日志中也可以看出这一点。

从源代码构建Qt 5.8 - configure：未知的命令行选项＆＃39; -c ++ 11＆＃39;

2 个答案: