install problems - ../../mtl/mtl.h:236: error: dependent-name `mtl::dim_n<Vector>::RET' is parsed as a non-type, but instantiation yields atype...

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Dear MTL Friends,

I attempted to install MTL on my Xeon EM64T machine with no
special options:

> > tar -xzvf mtl-2.1.2-22.tar.gz
> > ./configure --prefix=/usr/local/mtl
> > make

and got this error:

make[2]: Entering directory
`/usr/local/mtl/mtl-2.1.2-22/contrib/examples'
g++ -DHAVE_CONFIG_H -I. -I. -I../../mtl   -I../..
-ftemplate-depth-30 -Wall -c abs_sum.cc
../../mtl/mtl.h: In function `typename
mtl::linalg_traits<Linalg>::magnitude_type mtl::one_norm(const
Vector&, mtl::oned_tag) [with Vector =
mtl::external_vec<double, 4, unsigned int>]':
../../mtl/mtl.h:576:   instantiated from `typename
mtl::linalg_traits<Linalg>::magnitude_type mtl::one_norm(const
LinalgObj&) [with LinalgObj = mtl::external_vec<double, 4,
unsigned int>]'
abs_sum.cc:20:   instantiated from here
../../mtl/mtl.h:236: error: dependent-name `
mtl::dim_n<Vector>::RET' is parsed as a non-type, but
instantiation yields atype
../../mtl/mtl.h:236: note: say `typename
mtl::dim_n<Vector>::RET' if a type is meant
make[2]: *** [abs_sum.o] Error 1
make[2]: Leaving directory
`/usr/local/mtl/mtl-2.1.2-22/contrib/examples'
make[1]: *** [all-recursive] Error 1
make[1]: Leaving directory `/usr/local/mtl/mtl-2.1.2-22/contrib'
make: *** [all-recursive] Error 1

Neither I, a C++ amateur, nor my office mate, who knows his
stuff in this regard, have a clue of how to resolve this problem.

This is my machine:  > uname -a
Linux coulson 2.6.9-42.0.10.ELsmp #1 SMP Fri Feb 16 17:13:42
EST 2007 x86_64 x86_64 x86_64 GNU/Linux

I attached a TGZ file with the results of 'env', 'configure',
'make' and 'g++ -v'.

I also tried and failed repeatedly to use the Intel C++
compiler instead but changing every single reference to 'g++'
in every file failed to do the trick and I became confused and
frustrated at this.

Thanks for any help you can provide.

Jeff Hammond
The University of Chicago

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