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我有一个用 C++ 编写的基于 Qt 的应用程序，并且我正在使用fuzzylite 6.0库，我想静态链接它。

编译和执行在我的 Arch Linux 机器上完美运行。但是，我也想为 Windows 构建。因此，我使用 MXE ( )为 Windows 构建了MXE工具链和 blurlite 。MXE_TARGETS=x86_64-w64-mingw32.static

编译过程运行良好，除了来自外部库的一些警告（我相信他们使用一些 MSVC#pragma来禁用它们，但它们仍然出现在 MinGW 中）。

但是，生成的 PE 可执行文件在 x86_64 Windows 机器上完全没有任何作用。当我启动可执行文件时，没有错误，也没有弹出任何内容。

当我在没有fuzzylite（并且没有fuzzylite 相关代码）的情况下编译时，它确实有效，这让我认为在构建我的应用程序或fuzzylite 期间存在问题，但我无法找到解决方案。

以下是我采取的具体步骤：

  • 安装 MXE Qt 工具链：

    $ git clone https://github.com/mxe/mxe.git /usr/local/src/mxe
$ cd /usr/local/src/mxe/
$ make MXE_TARGETS=x86_64-w64-mingw32.static PREFIX=/usr/local qtbase

  • 构建fuzzylite：

    阅读此答案后，我修改build.sh为使用 MXE 版本，因为它会自动为 Windows 使用适当的工具链文件。cmake

    $ git clone https://github.com/fuzzylite/fuzzylite.git /usr/local/src/fuzzylite
$ cd /usr/local/src/fuzzylite/fuzzylite
$ sed -i 's/cmake\b/\/usr\/local\/bin\/x86_64-w64-mingw32.static-cmake/g' build.sh
$ /usr/local/src/fuzzylite/fuzzylite/build.sh all

    blurlite 也有一个build.bat文件，但我相信它只能在Windows 环境中执行。

  • 安装fuzzylite：

    $ cp /usr/local/src/fuzzylite/fuzzylite/release/bin/lib* /usr/local/lib/release/
$ cp /usr/local/src/fuzzylite/fuzzylite/debug/bin/lib* /usr/local/lib/debug/

  • 构建应用程序：

    $ x86_64-w64-mingw32.static-qmake-qt5
$ make

这是我的.pro文件（项目名为code）：

#-------------------------------------------------
#
# Project created by QtCreator 2018-11-19T08:47:31
#
#-------------------------------------------------

QT       += core gui

greaterThan(QT_MAJOR_VERSION, 4): QT += widgets

TARGET = code
TEMPLATE = app

# The following define makes your compiler emit warnings if you use
# any feature of Qt which has been marked as deprecated (the exact warnings
# depend on your compiler). Please consult the documentation of the
# deprecated API in order to know how to port your code away from it.
DEFINES += QT_DEPRECATED_WARNINGS

# You can also make your code fail to compile if you use deprecated APIs.
# In order to do so, uncomment the following line.
# You can also select to disable deprecated APIs only up to a certain version of Qt.
#DEFINES += QT_DISABLE_DEPRECATED_BEFORE=0x060000    # disables all the APIs deprecated before Qt 6.0.0

CONFIG += c++11

SOURCES += \
        main.cpp \
        mainwindow.cpp \
        analyzer.cpp \
        overlay.cpp \
        ridgeendingengine.cpp \
        minutiaengine.cpp \
        reversetrapezoid.cpp

HEADERS += \
        mainwindow.hpp \
        analyzer.hpp \
        overlay.hpp \
        ridgeendingengine.hpp \
        minutiaengine.hpp \
        reversetrapezoid.hpp

# Default rules for deployment.
qnx: target.path = /tmp/$${TARGET}/bin
else: unix:!android: target.path = /opt/$${TARGET}/bin
!isEmpty(target.path): INSTALLS += target

win32:CONFIG(release, debug|release): LIBS += -L/usr/local/lib/release/ -lfuzzylite-static
else:win32:CONFIG(debug, debug|release): LIBS += -L/usr/local/lib/debug/ -lfuzzylite-static
else:unix: LIBS += -L/usr/local/lib/ -lfuzzylite-static

INCLUDEPATH += /usr/local/include
DEPENDPATH += /usr/local/include

win32-g++:CONFIG(release, debug|release): PRE_TARGETDEPS += /usr/local/lib/release/libfuzzylite-static.a
else:win32-g++:CONFIG(debug, debug|release): PRE_TARGETDEPS += /usr/local/lib/debug/libfuzzylite-static.a
else:win32:!win32-g++:CONFIG(release, debug|release): PRE_TARGETDEPS += /usr/local/lib/release/fuzzylite-static.lib
else:win32:!win32-g++:CONFIG(debug, debug|release): PRE_TARGETDEPS += /usr/local/lib/debug/fuzzylite-static.lib
else:unix: PRE_TARGETDEPS += /usr/local/lib/libfuzzylite-static.a

在构建fuzzylite 和我的应用程序期间生成的警告示例：

In file included from /usr/local/src/fuzzylite/fuzzylite/./fl/Headers.h:33:0,
                 from /usr/local/src/fuzzylite/fuzzylite/src/main.cpp:17:
/usr/local/src/fuzzylite/fuzzylite/./fl/Exception.h:45:0: warning: ignoring #pragma warning  [-Wunknown-pragmas]
 #pragma warning (push)
 ^
/usr/local/src/fuzzylite/fuzzylite/./fl/Exception.h:46:0: warning: ignoring #pragma warning  [-Wunknown-pragmas]
 #pragma warning (disable:4275)
 ^
/usr/local/src/fuzzylite/fuzzylite/./fl/Exception.h:51:0: warning: ignoring #pragma warning  [-Wunknown-pragmas]
 #pragma warning (pop)
 ^

In file included from /usr/local/src/fuzzylite/fuzzylite/./fl/term/Term.h:22:0,
                 from /usr/local/src/fuzzylite/fuzzylite/./fl/factory/ConstructionFactory.h:119,
                 from /usr/local/src/fuzzylite/fuzzylite/./fl/factory/ActivationFactory.h:22,
                 from /usr/local/src/fuzzylite/fuzzylite/./fl/Headers.h:55,
                 from /usr/local/src/fuzzylite/fuzzylite/src/main.cpp:17:
/usr/local/src/fuzzylite/fuzzylite/./fl/Operation.h:993:24: warning: inline function 'static std::__cxx11::string fl::Operation::str(T, int, std::ios_base::fmtflags) [with T = const std::__cxx11::basic_string<char>&; std::__cxx11::string = std::__cxx11::basic_string<char>; std::ios_base::fmtflags = std::_Ios_Fmtflags]' declared as  dllimport: attribute ignored [-Wattributes]
     inline std::string Operation::str(const std::string& x, int decimals,
                        ^
/usr/local/src/fuzzylite/fuzzylite/./fl/Operation.h:1012:24: warning: inline function 'static std::__cxx11::string fl::Operation::join(const std::vector<T>&, const string&) [with T = std::__cxx11::basic_string<char>; std::__cxx11::string = std::__cxx11::basic_string<char>]' declared as  dllimport: attribute ignored [-Wattributes]
     inline std::string Operation::join(const std::vector<std::string>& x,
                        ^
/usr/local/src/fuzzylite/fuzzylite/./fl/Operation.h:1038:24: warning: inline function 'static std::__cxx11::string fl::Operation::join(int, const string&, T, ...) [with T = float; std::__cxx11::string = std::__cxx11::basic_string<char>]' declared as  dllimport: attribute ignored [-Wattributes]
     inline std::string Operation::join(int items, const std::string& separator,
                        ^
/usr/local/src/fuzzylite/fuzzylite/./fl/Operation.h:1054:24: warning: inline function 'static std::__cxx11::string fl::Operation::join(int, const string&, T, ...) [with T = const char*; std::__cxx11::string = std::__cxx11::basic_string<char>]' declared as  dllimport: attribute ignored [-Wattributes]
     inline std::string Operation::join(int items, const std::string& separator, const char* first, ...) {
                        ^
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