The requirements for this module necessitate Perl 5.6.1 or greater, the ability to compile XS extensions (emphasis added my own), Storable, Digest::MD5, Pod::Coverage (for POD coverage testing) and Test::Differences (for test failure comparison). The ability to compile XS extensions will necessitate the same compiler installed on your system as what was used to build your Perl installation.

See the nodes A Guide to Installing Modules and A Practical Guide to Compiling C based Modules under ActiveState using Microsoft C++.

(By the way, this module is definitely worth the installation effort - It positively has to be the best tool to use to assist and direct your test development efforts).

Sorry, if I was unclear.

As I sit behind a firewall, I have no access to PPM packages. So I made most modules by myself, including DBD::DB2, Tk and others. So, I consider myself being able to compile XS extensions. The perl Makefile.PL tells me about the dependent modules, if they are not installed.

The main problem is, that it does not seem to be as easy as to exchange the call to gettimeofday() with something functional equivalent, like _ftime(). My try did not change the external behaviour of Devel::Cover::get_elapsed(), that was easy to do without knowledge of Devel::Cover internals. But afterwards all tests failed, but only if not run through the debugger. The README says, there is debugger support, so that should not be the problem.

And it came to pass that in time the Great God Om spake unto Brutha, the Chosen One: "Psst!"
(Terry Pratchett, Small Gods)

Note that Devel::Coverage is a different (older) module which is somewhat less mature in it's development cycle than that of Devel::Cover.

 

perl -le "print unpack'N', pack'B32', '00000000000000000000001011001101'"

Thanks PodMaster,

I found the CPAN Testers report, but must have missed version 0.34, which reports Win32 passed. So I downloaded that version and tried it.

It Makes/Compiles ok, but tests are very suspicious. The effect is:
- nmake test fails 100%
- nmake testdb TEST_FILE=t/aalias.t gives 'ok 1'
(define __COVER__DEBUG for debug output)

Then I had a deeper look at version 0.40, fixed the unresolved externals and get the same effect.

RT is Request Tracker, which I had heard of and which I now have seen ;-) Thank You for this second hint.
As it states, the author seems to work on the first part. So I decided to contact him and offered my results. This should avoid double work.

Thank You all again for your hints.

And it came to pass that in time the Great God Om spake unto Brutha, the Chosen One: "Psst!"
(Terry Pratchett, Small Gods)

Notice Devel::Cover will likely soon require perl 5.8 or above as discussed here.

I just successfully installed Devel-Cover-0.40 on Windows XP with perl 5.8.3 as shown below. Sorry, I don't have time to investigate further right now, but a quick search for gettimeofday in perl 5.8 sources brought some hits in Time::HiRes (which is a standard module in 5.8) and in other places also.

# make
cp lib/Devel/Cover/DB/File.pm blib\lib\Devel\Cover\DB\File.pm
cp lib/Devel/Cover/Statement.pm blib\lib\Devel\Cover\Statement.pm
cp lib/Devel/Cover/Subroutine.pm blib\lib\Devel\Cover\Subroutine.pm
cp lib/Devel/Cover/DB/Structure.pm blib\lib\Devel\Cover\DB\Structure.p
+m
cp lib/Devel/Cover/Condition_xor_4.pm blib\lib\Devel\Cover\Condition_x
+or_4.pm
cp lib/Devel/Cover/Branch.pm blib\lib\Devel\Cover\Branch.pm
cp lib/Devel/Cover/Condition_or_2.pm blib\lib\Devel\Cover\Condition_or
+_2.pm
cp lib/Devel/Cover/Inc.pm blib\lib\Devel\Cover\Inc.pm
cp lib/Devel/Cover/Report/Html.pm blib\lib\Devel\Cover\Report\Html.pm
cp lib/Devel/Cover/Op.pm blib\lib\Devel\Cover\Op.pm
cp lib/Devel/Cover/Condition_and_3.pm blib\lib\Devel\Cover\Condition_a
+nd_3.pm
cp lib/Devel/Cover.pm blib\lib\Devel\Cover.pm
cp lib/Devel/Cover/Report/Html_basic.pm blib\lib\Devel\Cover\Report\Ht
+ml_basic.pm
cp lib/Devel/Cover/Report/Text.pm blib\lib\Devel\Cover\Report\Text.pm
cp lib/Devel/Cover/Report/Text2.pm blib\lib\Devel\Cover\Report\Text2.p
+m
cp lib/Devel/Cover/Pod.pm blib\lib\Devel\Cover\Pod.pm
cp lib/Devel/Cover/Report/Html_minimal.pm blib\lib\Devel\Cover\Report\
+Html_minimal.pm
cp lib/Devel/Cover/DB.pm blib\lib\Devel\Cover\DB.pm
cp lib/Devel/Cover/Truth_Table.pm blib\lib\Devel\Cover\Truth_Table.pm
cp lib/Devel/Cover/Tutorial.pod blib\lib\Devel\Cover\Tutorial.pod
cp lib/Devel/Cover/Time.pm blib\lib\Devel\Cover\Time.pm
cp lib/Devel/Cover/Condition_or_3.pm blib\lib\Devel\Cover\Condition_or
+_3.pm
cp lib/Devel/Cover/Criterion.pm blib\lib\Devel\Cover\Criterion.pm
cp lib/Devel/Cover/Report/Html_subtle.pm blib\lib\Devel\Cover\Report\H
+tml_subtle.pm
cp lib/Devel/Cover/Test.pm blib\lib\Devel\Cover\Test.pm
cp lib/Devel/Cover/Condition.pm blib\lib\Devel\Cover\Condition.pm
    D:\Perl58\bin\perl.exe D:\Perl58\lib\ExtUtils/xsubpp  -typemap D:\
+Perl58\lib\ExtUtils\typemap -typemap typemap  Cover.xs > Cover.xsc &&
+ D:\Perl58\bin\perl.exe -MExtUtils::Command -e mv Cover.xsc Cover.c
    cl -c    -nologo -Gf -W3 -MD -Zi -DNDEBUG -O1 -DWIN32 -D_CONSOLE -
+DNO_STRICT -DHAVE_DES_FCRYPT -DNO_HASH_SEED -DPERL_IMPLICIT_CONTEXT -
+DPERL_IMPLICIT_SYS -DUSE_PERLIO -DPERL_MSVCRT_READFIX -MD -Zi -DNDEBU
+G -O1    -DVERSION=\"0.40\"  -DXS_VERSION=\"0.40\"  "-ID:\Perl58\lib\
+CORE"   Cover.c
Cover.c
Cover.c(967) : warning C4101: 'RETVAL' : unreferenced local variable
Running Mkbootstrap for Devel::Cover ()
    D:\Perl58\bin\perl.exe -MExtUtils::Command -e chmod 644 Cover.bs
    D:\Perl58\bin\perl.exe -MExtUtils::Mksymlists  -e "Mksymlists('NAM
+E'=>\"Devel::Cover\", 'DLBASE' => 'Cover', 'DL_FUNCS' => {  }, 'FUNCL
+IST' => [], 'IMPORTS' => {  }, 'DL_VARS' => []);"
    link -out:blib\arch\auto\Devel\Cover\Cover.dll -dll -nologo -nodef
+aultlib -debug -opt:ref,icf  -libpath:"D:\Perl58\lib\CORE"  -machine:
+x86 Cover.obj   D:\Perl58\lib\CORE\perl58.lib oldnames.lib kernel32.l
+ib user32.lib gdi32.lib winspool.lib  comdlg32.lib advapi32.lib shell
+32.lib ole32.lib oleaut32.lib  netapi32.lib uuid.lib wsock32.lib mpr.
+lib winmm.lib  version.lib odbc32.lib odbccp32.lib msvcrt.lib -def:Co
+ver.def
   Creating library blib\arch\auto\Devel\Cover\Cover.lib and object bl
+ib\arch\auto\Devel\Cover\Cover.exp
    D:\Perl58\bin\perl.exe -MExtUtils::Command -e chmod 755 blib\arch\
+auto\Devel\Cover\Cover.dll
    D:\Perl58\bin\perl.exe -MExtUtils::Command -e cp Cover.bs blib\arc
+h\auto\Devel\Cover\Cover.bs
    D:\Perl58\bin\perl.exe -MExtUtils::Command -e chmod 644 blib\arch\
+auto\Devel\Cover\Cover.bs
    D:\Perl58\bin\perl.exe -MExtUtils::Command -e cp cover blib\script
+\cover
    pl2bat.bat blib\script\cover
    D:\Perl58\bin\perl.exe -MExtUtils::Command -e cp gcov2perl blib\sc
+ript\gcov2perl
    pl2bat.bat blib\script\gcov2perl

# make test
    D:\Perl58\bin\perl.exe -MExtUtils::Command -e cp cover blib\script
+\cover
    pl2bat.bat blib\script\cover
    D:\Perl58\bin\perl.exe -MExtUtils::Command -e cp gcov2perl blib\sc
+ript\gcov2perl
    pl2bat.bat blib\script\gcov2perl
    D:\Perl58\bin\perl.exe "-MExtUtils::Command::MM" "-e" "test_harnes
+s(0, 'blib\lib', 'blib\arch')" t\aalias.t t\aalias1.t t\abranch_retur
+n_sub.t t\acond_and.t t\acond_branch.t t\acond_or.t t\acond_xor.t t\a
+default_param.t t\adestroy.t t\adynamic_subs.t t\aeval1.t t\afork.t t
+\aif.t t\amodule1.t t\amodule2.t t\amodule_import.t t\aoverloaded.t t
+\apod.t t\askip.t t\aspecial_blocks.t t\astatement.t t\at0.t t\at1.t 
+t\at2.t t\atrivial.t t\md5.t
t\aalias................ok
t\aalias1...............ok
t\abranch_return_sub....ok
t\acond_and.............ok
t\acond_branch..........ok
t\acond_or..............ok
t\acond_xor.............ok
t\adefault_param........ok
t\adestroy..............ok
t\adynamic_subs.........ok
t\aeval1................ok
t\afork.................ok
        1/1 skipped: Fork unreliable
t\aif...................ok
t\amodule1..............ok
t\amodule2..............ok
t\amodule_import........ok
t\aoverloaded...........ok
t\apod..................ok
t\askip.................ok
t\aspecial_blocks.......ok
t\astatement............ok
t\at0...................ok
t\at1...................ok
t\at2...................ok
t\atrivial..............ok
t\md5...................ok
All tests successful, 1 subtest skipped.
Files=26, Tests=26, 294 wallclock secs ( 0.00 cusr +  0.00 csys =  0.0
+0 CPU)
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