title: Qt can't include *.h from static lib into my prog
body: <p>I'm a bit of a newbie at Qt and i can't find why my .h from my lib won't be included.</p>
  <p>the error message is :</p>
  <blockquote>
  <p>error: setting.h: No such file or directory</p>
  </blockquote>
  <p>the lib was build without trouble.</p>
  <p>i added it with Qtcreator by right cliking on my program project -&gt;  add library -&gt; External library -&gt; browse for my library file and path on my computer and added the libToolSettin.a.</p>
  <p>This produced this code to add it into the .pro file:</p>
  <blockquote>
  <p>unix|win32: LIBS += -L$$PWD/../Tools/build-libToolSetting-Desktop-Debug/ -llibToolSetting</p>
  <p>INCLUDEPATH += $$PWD/../Tools/build-libToolSetting-Desktop-Debug
  DEPENDPATH += $$PWD/../Tools/build-libToolSetting-Desktop-Debug</p>
  <p>win32: PRE_TARGETDEPS += $$PWD/../Tools/build-libToolSetting-Desktop-&gt;Debug/libToolSetting.lib
  else:unix: PRE_TARGETDEPS += $$PWD/../Tools/build-libToolSetting-Desktop-Debug/liblibToolSetting.a</p>
  </blockquote>
  <p>i'm a at loss as to why it won't work so thanks for your help in advance.</p>