Undefined reference to `_Unwind_Resume' with QT

Question

When trying to switch to gcc 4.6.2 in qt (setting it in a toolchain) I'm getting the following error:

c:\ndk_buildrepos\qt-desktop\src\winmain\qtmain_win.cpp:93: error: undefined reference to `_Unwind_Resume'  

Any idea how to fix it?

//.pro
QMAKE_CXXFLAGS += -std=c++0x

SOURCES += \
    main.cpp

Answer 1

Undefined references to _Unwind_Resume are caused by compiling with a GCC with a different stack unwinding method from that used by the library you're trying to link with.

As stated above, the solution is to rebuild the library with the same compiler. Just noting the cause for future google visitors.

Answer 2

1. I download and installed a Qt library alone (i didn't download the whole SDK)
2. I Wrote a simple Hello Qt window..
3. I link it with my Dev-Cpp (since Dev-Cpp is using MinGW as well) mine version actually is 3.4.x not 4.4.x...
4. I compile it the Qt way using qmake .. etc..
5. I got an error you have experienced as well..

... "_Unwind_Resume ..." ...

My Solution (simple, very simple)

1. Run the Qt X.X.X. (Build Debug Libraries) or..
2. Run the qtvars.bat (depending on the version of Qt you are using) mine is 4.8.0..
3. 1 and 2 are the same thing..

I did a hit of make again.. it runs..:)

p.s. it solves my problem.:) I hope it can solve yours too.