Hi,
Here's a hack to build and install Encode-Detect-1.01 from source.

1) Copy include/nscore.h and include/prmem.h to src/nscore.h and src/prmem.h
2) Move Detect.pm from the top level source folder to 'lib/Encode/Detect.pm'. (You'll need to first create the lib/Encode directory.)
3) In Build.PL change  dist_version_from => 'Detect.pm', to dist_version_from => 'lib/Encode/Detect.pm', 4) In the MANIFEST file change Detect.pm to lib/Encode/Detect.pm.
5) Create My_Makefile.PL in the top level source folder (alongside existing Makefile.PL)

My_Makefile.PL looks like this:

use ExtUtils::MakeMaker;
use Config;

die "Wrong platform" if $Config{cc} ne 'cl' &&
                        $Config{cc} ne 'gcc';

WriteMakefile(
     NAME => 'Encode::Detect::Detector',
     CC => $Config{cc} eq 'cl' ? 'cl -TP' : 'g++',
     VERSION_FROM => 'Detector.pm',
     LIBS => $Config{make} eq 'nmake' ? '-L. -lns':
             '-L./src -lns',
     INC => '-I./src',
);
[download]

With Microsoft Compilers and nmake:
Then build the library by running, in turn:
a) perl Makefile.PL CC="cl -TP"
b) nmake (terminates with error, but compiles the src/*.cpp files)
c) lib /out:libns.lib *.obj
d) nmake realclean (restores to what we started with + libns.lib + object files)
Now that we have the library, let's build the module:
e) perl My_Makefile.PL
f) nmake test (should pass test suite)
g) nmake install
h) nmake realclean (to return to what we started with)

With MinGW and dmake:
Then build the library by running, in turn:
a) perl Makefile.PL CC=g++
b) dmake (terminates with error, but compiles the src/*.cpp files)
c) cd src
d) ar -rc libns.a *.o
e) ranlib libns.a
f) cd ..
g) dmake realclean (restores to what we started with + src/libns.a)
Now that we have the library, let's build the module:
h) perl My_Makefile.PL
i) dmake test (should pass test suite)
j) dmake install
k) dmake realclean (to return to what we started with + src/libns.a)

Note that, for me, when building with nmake, the object files were all built in the top level source folder (instead of the 'src' folder, as happens with dmake). I can't guarantee that the behaviour in this regard will be the same for all versions of EU::MM - if it differs you will need to modify the above instructions acccordingly.

Cheers,
Rob