Re: [eigen] Build Eigen 3 in Windows 7 using MingW.

[Christoph Hertzberg <chtz@xxxxxxxxxxxxxxxxxxxxxxxx>]

Hi,

first of all, you do not need to compile Eigen before using. It is 
header only, so in general copying Eigen to a default look-up path or 
telling the compiler where Eigen is located should be sufficient.

Anyways, you should be able to compile the tests/examples (MinGW is in 
the list of supported compilers -- do you have an up-to-date version?)

On 18.08.2011 11:06, JIA Pei wrote:
> Hi, all:
>
> I'm wondering without the support from the following libraries,
>
> > Disabling vectorization in tests/examples
> > Disabling alignment in tests/examples
> > Could NOT find CHOLMOD (missing: CHOLMOD_INCLUDES CHOLMOD_LIBRARIES)
> > Could NOT find UMFPACK (missing: UMFPACK_INCLUDES UMFPACK_LIBRARIES)
> > Could NOT find SUPERLU (missing: SUPERLU_INCLUDES SUPERLU_LIBRARIES)

These are required for more advanced sparse matrix decomposition.

> > Could NOT find GOOGLEHASH (missing: GOOGLEHASH_INCLUDES
> > GOOGLEHASH_COMPILE)

I have no idea where Eigen needs this.

> > Could NOT find ADOLC (missing: ADOLC_INCLUDES ADOLC_LIBRARIES)

This is for symbolic derivation, I don't know if this is stable already.

> > Could NOT find MPFR (missing: MPFR_INCLUDES MPFR_LIBRARIES MPFR_VERSION_OK)
> > (Required is at least version "2.3.0")
> > Could NOT find GMP (missing: GMP_INCLUDES GMP_LIBRARIES)

These are required for high-precision/arbitrary precision matrices.

> am I still able to successfully "mingw32-make check"

I think theoretically it should run anyways, automatically skipping the 
tests/examples which require any of the packages above.

> I'm sorry that no matter what I tried, I always obtained the following error
> messages:
>
> cc1plus.exe: error: unrecognized command line option "-maltivec"
> > cc1plus.exe: error: unrecognized command line option "-mfloat-abi=softfp"
> > cc1plus.exe: error: unrecognized command line option "-mfpu=neon"
> > ........eigen-eigen-3.0.1\test\basicstuff.cpp:1:0: error: unknown ABI
> > (altivec) for -mabi= switch
> > ........eigen-eigen-3.0.1\test\basicstuff.cpp:1:0: error: bad value
> > (cortex-a8) for -mtune= switch
> > mingw32-make[3]: *** [test/CMakeFiles/basicstuff_1.dir/basicstuff.cpp.obj]
> > Error 1
> > mingw32-make[3]: *** Leaving directory '......../eigen-eigen-3.0.1/build'
> > mingw32-make[2]: *** [test/CMakeFiles/basicstuff_1.dir/all] Error 2
> > mingw32-make[2]: *** Leaving directory '......../eigen-eigen-3.0.1/build'
> > mingw32-make[1]: *** [CMakeFiles/check.dir/rule] Error 2

I have no idea why these options are not supported (or why they would be 
required). To my knowledge none of these make sense for Windows machines.

> How to make Eigen 3 successfully built using MinGW under Windows7?

Sorry, can't give you more tips other than it is not required to build it.

> By the way, Are the above missing libraries musts for Eigen 3 building???

None of them are mandatory.


Christoph




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Dipl.-Inf. Christoph Hertzberg
Cartesium 0.051
Universität Bremen
Enrique-Schmidt-Straße 5
28359 Bremen

Tel: (+49) 421-218-64252
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