I have build a Qt project (qwt) using the vs2013 compiler in Qt creator. When I open the .pro file and look at the build steps I see:
When I build the project, all goes fine and the project is build without errors. So far so good.
However when I try to build this project using the command line I get errors during the nmake step. I have used the same commands as above (and I'm sure that I'm using the same versions of qmake/nmake).
...\QtCore\qglobal.h(38) : fatal error C1083: Cannot open include
file: 'stddef.h': No such file or directory
My question is, what does Qt do more so that the project does build in Qt creator and not from the command prompt? And how can I copy this behaviour in the command prompt? I'm doing this so I can make a batch file that builds the project (on a machine that does not have Qt creator installed).
In order to use the Visual Studio compilation environment from the command-line you need to call the vcvars batch script to set up the paths correctly.
Either call the vcvars64.bat in the C:\Program Files (x86)\Microsoft Visual Studio 12.0\VC\bin\amd64 folder (that is for VS2013, you can replace the "12.0" with whatever visual studio version you have).
Or the vcvars32.bat in the C:\Program Files (x86)\Microsoft Visual Studio 12.0\VC\bin folder.
Or use the vcvarsall.bat x86 or vcvarsall.bat x64 calls for the script in C:\Program Files (x86)\Microsoft Visual Studio 12.0\VC
Alternatively Visual Studio creates shortcuts in the start-menu called along the lines of VS2013 x64 Native Tools Command Prompt which call those scripts.