未定義參考與nsRunnable

鏈接時火狐12 SDK除去「代理」對象所屬類別，我想使用nsRunnable使用cross-thread calls。我基本上做了代碼複製和粘貼：未定義參考與nsRunnable

class NotifyTask : public nsRunnable 
{ 
public: 
    NotifyTask(nsISupports *subject, const char *topic, bool remref) 
    : mWorkerThread(do_GetCurrentThread()) 
    { 
    MOZ_ASSERT(!NS_IsMainThread()); // This should be running on the worker thread 
    } 

    NS_IMETHOD Run() { 
    MOZ_ASSERT(NS_IsMainThread()); // This method is supposed to run on the main thread! 

    mWorkerThread->Shutdown(); 
    return NS_OK; 
    } 

private: 
    nsCOMPtr<nsIThread> mWorkerThread; 
};

我試圖編譯它。我得到了以下錯誤：

g++ -std=gnu++0x -Wall -O2 -c -DUSE_LIBUSB -fPIC -DHAVE_CRYPTO -fpermissive -DCRYPTPP -fshort-wchar -I../../xulrunner-sdk/include -o gipsy.o gipsy.cpp 
gipsy.cpp:74:7: warning: ‘NotifyTask’ declared with greater visibility than the type of its field ‘NotifyTask::<anonymous>’ [-Wattributes] 
gipsy.cpp:74:7: warning: ‘NotifyTask’ declared with greater visibility than its base ‘nsRunnable’ [-Wattributes] 
g++ -std=gnu++0x -Wl,-z,defs -Wall -Os -o gipsy.so -shared gipsy.o gipsymodule.o tracklog.o gpslib/data.o gpslib/garmin.o gpslib/gps.o gpslib/phys.o gpslib/igc.o gpslib/aircotec.o cp1250.o prefparser.o gpslib/foreignigc.o gpslib/mlr.o gpslib/flymaster.o gpslib/compeo.o gpslib/iq.o ../libs/libcryptopp.a -lusb -L../../xulrunner-sdk/lib -lxpcomglue_s -lxul -lxpcom -lplds4 -lplc4 -lnspr4 -lpthread -ldl -lmozalloc 
gipsy.o:(.data.rel.ro._ZTI10NotifyTask[typeinfo for NotifyTask]+0x10): undefined reference to `typeinfo for nsRunnable' 
collect2: ld returned 1 exit status

根據g++ undefined reference to typeinfo它可能是壁虎SDK與-fvisibility =隱藏和一些奇怪的'不同。所以關鍵方法的內置。這是Gecko SDK中的錯誤還是我做錯了什麼？

來源

2012-05-09 ondra

壁虎SDK不與RTTI鏈接 - 加入「-fno-RTTI」參數來修復該問題的具體.o文件將。

來源

2012-05-17 16:28:54 ondra

未定義參考與nsRunnable

回答

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