Can't get Qt SDK to compile (Windows)

**mrlucmorin** · 13th October 2009, 13:41

Hi,

All this is done on a Windows XP SP3 computer.

I've downloaded the Qt 2009.04 SDK, and installed it. During install, I selected to also install MingW.

After installing the SDK, I launch the "Qt Command Prompt" from the Start menu.

From there, I run "configure.exe", answer the questions about open source vs. commercial (I chose open source), and then I run "mingw32-make".

This go well for a while, but when the build process gets to linking the moc tool, it crashes with tons of unresolved symbols such as:

Qt Code:

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release/moc.o:moc.cpp:(.text+0x78): undefined reference to `QByteArray::shared_null'
...
release/moc.o:moc.cpp:(.text+0x181): undefined reference to `QByteArray::realloc(int)'
...
release/moc.o:moc.cpp:(.text+0x351): undefined reference to `QByteArray::operator=(QByteArray const&)'
release/moc.o:moc.cpp:(.text+0x3ac): undefined reference to `QByteArray::remove(int, int)'
release/moc.o:moc.cpp:(.text+0x3cb): undefined reference to `QByteArray::prepend(char const*)'
release/moc.o:moc.cpp:(.text+0x3f8): undefined reference to `QByteArray::realloc(int)'
release/moc.o:moc.cpp:(.text+0x431): undefined reference to `QByteArray::realloc(int)'
release/moc.o:moc.cpp:(.text+0x52c): undefined reference to `QByteArray::append(char)'
release/moc.o:moc.cpp:(.text+0x5a1): undefined reference to `QByteArray::append(char const*)'
release/moc.o:moc.cpp:(.text+0x6d3): undefined reference to `qFree(void*)'

release/moc.o:moc.cpp:(.text+0x78): undefined reference to `QByteArray::shared_null'
...
release/moc.o:moc.cpp:(.text+0x181): undefined reference to `QByteArray::realloc(int)'
...
release/moc.o:moc.cpp:(.text+0x351): undefined reference to `QByteArray::operator=(QByteArray const&)'
release/moc.o:moc.cpp:(.text+0x3ac): undefined reference to `QByteArray::remove(int, int)'
release/moc.o:moc.cpp:(.text+0x3cb): undefined reference to `QByteArray::prepend(char const*)'
release/moc.o:moc.cpp:(.text+0x3f8): undefined reference to `QByteArray::realloc(int)'
release/moc.o:moc.cpp:(.text+0x431): undefined reference to `QByteArray::realloc(int)'
release/moc.o:moc.cpp:(.text+0x52c): undefined reference to `QByteArray::append(char)'
release/moc.o:moc.cpp:(.text+0x5a1): undefined reference to `QByteArray::append(char const*)'
release/moc.o:moc.cpp:(.text+0x6d3): undefined reference to `qFree(void*)'

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And so on for about 2000 lines.

Like I mentioned, this is all "out of the box", so did I forget a step somewhere ?

I used to routinely build Qt on FreeBSD a few years back, and now I'm mostly working on Windows and thought it would be nice to give the latest Qt a try.

It looks like a library path is not properly set for the linker, but since I've not worked with gcc for a while (and also it's my first time trying it on the Windows platform), I need help figuring out what's going on.

Any tips/pointers ?

Thank you

**bram85** · 24th June 2010, 11:41

Have you been able to resolve this issue? I'm running into exactly the same problem with Qt 4.6.2 and 4.6.3 on Windows.

**DanMcCoder** · 30th June 2010, 15:32

I had a similar problem when I was trying to build the QPSQL plugin.
The problem was the LIB and INCLUDE environment variables missing.
See my thread here: http://www.qtcentre.org/threads/3198...river?p=149353
Hope this will help.

Regards
Daniel