【发布时间】:2016-11-18 08:07:37
【问题描述】:
我正在尝试创建一个使用 TagLib 库的项目。我不确定该怎么做。
我已经下载了TagLib 1.11.1。
我是这样构建的:
构建 zlib,首先让 CMake 创建一个 Visual Studio 解决方案文件,然后使用 Visual Studio 构建此解决方案:
mkdir build && cd build cmake .. -G"Visual Studio 14 2015 Win64" -DCMAKE_INSTALL_PREFIX="e:\workspace\lib\installed" msbuild /P:Configuration=Debug INSTALL.vcxproj msbuild /P:Configuration=Release INSTALL.vcxproj
以同样的方式构建 TagLib:
cd ....\taglib-1.11.1 mkdir 构建 && cd 构建 cmake .. -G"Visual Studio 14 2015 Win64" -DCMAKE_INSTALL_PREFIX="e:\workspace\lib\installed" -DZLIB_INCLUDE_DIR="e:\workspace\lib\installed\include" -DZLIB_LIBRARY="e:\workspace\lib \installed\lib\zlib.lib" -DWITH_ASF=on -DWITH_MP4=on -DBUILD_EXAMPLES=on msbuild /P:Configuration=Release INSTALL.vcxproj
我创建了一个简单的 Qt 控制台应用程序:
然后我使用 Qt 从上面的 TagLib Build 中添加 tag.lib 在E:\workspace\lib\installed\lib 中使用 Qt
Qt -> 添加库 -> 库类型(外部库) -> .......
main.cpp:
#include <QCoreApplication>
#include <QDebug>
#include <taglib/fileref.h>
int main(int argc, char *argv[])
{
QCoreApplication a(argc, argv);
TagLib::FileRef f("D:/Dire Straits - Sultans of Swing.mp3");
return a.exec();
}
taglibtest.pro
QT += core
QT -= gui
CONFIG += c++11
TARGET = taglibtest
CONFIG += console
CONFIG -= app_bundle
TEMPLATE = app
SOURCES += main.cpp
win32:CONFIG(release, debug|release): LIBS += -L$$PWD/taglib/builds/ -ltag
else:win32:CONFIG(debug, debug|release): LIBS += -L$$PWD/taglib/builds/ -ltagd
else:unix: LIBS += -L$$PWD/taglib/builds/ -ltag
INCLUDEPATH += $$PWD/taglib/builds
DEPENDPATH += $$PWD/taglib/builds
win32:CONFIG(release, debug|release): LIBS += -L$$PWD/taglib/builds/ -ltag
else:win32:CONFIG(debug, debug|release): LIBS += -L$$PWD/taglib/builds/ -ltagd
else:unix: LIBS += -L$$PWD/taglib/builds/ -ltag
INCLUDEPATH += $$PWD/taglib/builds
DEPENDPATH += $$PWD/taglib/builds
HEADERS += \
taglib/aifffile.h \
taglib/aiffproperties.h \
taglib/apefile.h \
taglib/apefooter.h \
taglib/apeitem.h \
taglib/apeproperties.h \
taglib/apetag.h \
taglib/asfattribute.h \
taglib/asffile.h \
taglib/asfpicture.h \
taglib/asfproperties.h \
etc....
etc....
每当我尝试在 Qt 中构建项目时,都会出现以下错误:
F:\taglibtest\main.cpp:-1: error: undefined reference to `_imp___ZN6TagLib8FileNameC1EPKc'
F:\taglibtest\main.cpp:-1: error: undefined reference to `_imp___ZN6TagLib7FileRefC1ENS_8FileNameEbNS_15AudioProperties9ReadStyleE'
F:\taglibtest\main.cpp:-1: error: undefined reference to `_imp___ZN6TagLib7FileRefD1Ev'
F:\taglibtest\main.cpp:-1: error: undefined reference to `_imp___ZN6TagLib7FileRefD1Ev'
:-1: error: release/main.o: bad reloc address 0x0 in section `.ctors'
:-1: error: final link failed: Invalid operation
collect2.exe:-1: error: error: ld returned 1 exit status
我应该怎么做才能解决这个问题并开始使用 TagLib?
taglibtest.pro
QT += core
QT -= gui
CONFIG += c++11
TARGET = taglibtest
CONFIG += console
CONFIG -= app_bundle
TEMPLATE = app
SOURCES += main.cpp
win32:CONFIG(release, debug|release): LIBS += -L$$PWD/taglib/builds/ -ltag
else:win32:CONFIG(debug, debug|release): LIBS += -L$$PWD/taglib/builds/ -ltagd
else:unix: LIBS += -L$$PWD/taglib/builds/ -ltag
INCLUDEPATH += $$PWD/taglib/builds
DEPENDPATH += $$PWD/taglib/builds
win32:CONFIG(release, debug|release): LIBS += -L$$PWD/taglib/builds/ -ltag
else:win32:CONFIG(debug, debug|release): LIBS += -L$$PWD/taglib/builds/ -ltagd
else:unix: LIBS += -L$$PWD/taglib/builds/ -ltag
INCLUDEPATH += $$PWD/taglib/builds
DEPENDPATH += $$PWD/taglib/builds
HEADERS += \
taglib/aifffile.h \
taglib/aiffproperties.h \
taglib/apefile.h \
taglib/apefooter.h \
taglib/apeitem.h \
taglib/apeproperties.h \
taglib/apetag.h \
taglib/asfattribute.h \
taglib/asffile.h \
taglib/asfpicture.h \
taglib/asfproperties.h \
etc....
etc....
【问题讨论】: