[CMake] CMake + Ninja + MSVC confusion

[Alan W. Irwin]

On 2014-02-12 17:22-0000 Dominic Walsh wrote:

> Hi
>
> I am trying to use the Ninja generator to compile on a Windows machine using the Visual Studio 11 compilers.
>
>> From a VS11 console I run cmake (version: 2.8.11.2 ):
>
> cmake -G Ninja -DCMAKE_BUILD_TYPE=Debug -DCMAKE_SYSTEM_NAME=MSVC ..
>
> I then run Ninja (version 1.4.0)
>
> ninja -v
>
> and all appears well until the final link:
>
> [70/70] cmd.exe /c cd . && c:\cygwin\bin\ld.exe /lib /nologo
> .... <snip>....
> /lib: file not recognized: Is a directory
> ninja: build stopped: subcommand failed.
>
> Cygwin is in my path but I am surprised that I appear to be using it to Link?

This comment is based just on what others have reported about MSVC and
Cygwin builds of PLplot since I have no direct experience with either
MSVC or Cygwin.

I think you will find the PATH profoundly affects what cmake does so I
suggest you do the obvious; remove Cygwin from your PATH for MSVC
builds and try again.  This assures, for example, you are using a
Windows version of CMake rather than a Cygwin one.  But that is just
one reason to remove Cygwin from your PATH for MSVC builds, and I am
positive from my Linux and MinGW/MSYS/Wine experience there are many
others.

Alan
__________________________
Alan W. Irwin

Astronomical research affiliation with Department of Physics and Astronomy,
University of Victoria (astrowww.phys.uvic.ca).

Programming affiliations with the FreeEOS equation-of-state
implementation for stellar interiors (freeeos.sf.net); the Time
Ephemerides project (timeephem.sf.net); PLplot scientific plotting
software package (plplot.sf.net); the libLASi project
(unifont.org/lasi); the Loads of Linux Links project (loll.sf.net);
and the Linux Brochure Project (lbproject.sf.net).
__________________________

Linux-powered Science
__________________________