QInotifyFileSystemWatcherEngine::create

解决Qt库中未定义引用错误及添加依赖配置

转载于 2010-04-06 13:56:00 发布 · 1.1k 阅读

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本文详细介绍了如何解决Qt库中出现的未定义引用错误，并通过编辑配置文件添加必要的依赖库来解决相关问题。适用于Qt开发过程中遇到的链接错误时进行排查与修正。

error1:
libQtCore.so: undefined reference to `QInotifyFileSystemWatcherEngine::create()'

resolution:
edit ./src/corelib/io/io.pri
find linux-*:
append your cross-toolchain's prefix after it

eg:
my toolchains's prefix is arm_xxxxx
so....
68        linux-*|arm*:{
69             SOURCES += /
70                     io/qfilesystemwatcher_inotify.cpp /
71                     io/qfilesystemwatcher_dnotify.cpp
72
73             HEADERS += /
74                     io/qfilesystemwatcher_inotify_p.h /
75                     io/qfilesystemwatcher_dnotify_p.h
76         }

error2:
libQtCore.so: undefined reference to `clock_gettime'

resolution:
append "-lrt" parameters after the "./configure" so that the compiler can find the define in librt.