Compile Qgis source : Links errors (Windows)

Question

I am actually trying to compile the source of the qgis git : https://github.com/qgis/Quantum-GIS

In order to compile it, I follow the steps of the tutorial here : http://www.qgis.org/api/INSTALL.html (starting on the step 4 "Buildings on Window")

I manage to configure the CMake with all the dependencies and to generate the project. To generate the project I use MSCV10 but I also tried with MSCV express 2008 like in the tutorial.

In the two cases, when I generate the project, I always have the following errors :

LINK : fatal error LNK1181: impossible to open the file '....\core\Release\qgis_core.lib'

LINK : fatal error LNK1181: impossible to open the file '....\analysis\Release\qgis_analysis.lib'

I don't understand why the project tries to open a librairie which is not created yet to compile its code. Do you have an idea how to solve this problem ?

EDIT : Apparently, the qgis_core.lib and others must be created during the build (this is why there are theses errors). But the lib is not created because of the errors :

.\flex_qgsrastercalclexer.cpp(43) : fatal error C1083: imposible to open the hearder file: 'unistd.h' : No such file or directory

Do you know how to add this header to the project ? I am not very used to MSCV

Thank you very much

Regards

Answer 1

Additionally QGIS also needs the include file unistd.h, which normally doesn't exist on Windows. It's shipped with Flex/Bison in GnuWin32\include and needs to be copied into the VC\include directory of your Visual C++ installation.

Source: https://github.com/qgis/Quantum-GIS/blob/master/INSTALL#L603

You need to stick to MSCV (express) 2008 if you don't want to compile all dependencies as well.