[SOLVED] Qt Creator: linker error when trying to use TaskHub API

[gosuwachu]

I am trying to create custom plugin that will add new issues to Issues pane, however when I am trying to use TaskHub API from built-in ProjectExplorer plugin I get unresolved symbol linker error:

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mypluginplugin.obj:-1: error: LNK2019: unresolved external symbol "__declspec(dllimport) public: static void __cdecl ProjectExplorer::TaskHub::addCategory(class Core::Id,class QString const &,bool)" (_imp?addCategory@TaskHub@ProjectExplorer@@SAXVId@Core@@AEBVQString@@_N@Z) referenced in function "public: virtual bool __cdecl MyPlugin::Internal::MyPluginPlugin::initialize(class QStringList const &,class QString *)" (?initialize@MyPluginPlugin@Internal@MyPlugin@@UEAA_NAEBVQStringList@@PEAVQString@@@Z)
@

That is how I use it, in my myplugin.cpp:

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#include <projectexplorer/taskhub.h>
...
ProjectExplorer::TaskHub::addCategory(
Core::Id("Unit tests"),
QLatin1String("Unit tests"));
...
@

My .pro file:
@

QTC_PLUGIN_DEPENDS +=
coreplugin
projectexplorer
@

I have checked out latest source code of qt creator from the repository, built it and my custom plugin works if I use only api from coreplugin, but I get linker error for everything else.

[gosuwachu]

I solved the problem by adding:
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QMAKE_CFLAGS += $$QMAKE_CFLAGS_MT
QMAKE_CXXFLAGS += $$QMAKE_CXXFLAGS_MT
@