test suite fails under Activestate Perl 5.8.8

[angryxpeh]

I'm using ActiveState Perl 5.8.8 build 820. When I run "nmake test", some tests fail:

Test Summary Report
-------------------
t/hpgl/read.t (Wstat: 0 Tests: 1 Failed: 1)
Failed test: 1
t/ps/read.t (Wstat: 0 Tests: 3 Failed: 2)
Failed tests: 1-2
t/ps/write.t (Wstat: 0 Tests: 2 Failed: 2)
Failed tests: 1-2
Files=25, Tests=336, 61 wallclock secs ( 0.70 usr + 0.16 sys = 0.86 CPU
Result: FAIL
Failed 3/25 test programs. 5/336 subtests failed.

I've run failing tests manually, here are results:

C:\prj\ImageMagick-6.5.3\PerlMagick>perl -Iblib/lib -Iblib/arch t/hpgl/read.t
1..1
ReadImage: Exception 415: Postscript delegate failed `C:/WINDOWS/TEMP/magick-cxU3OS_z': No such file or directory @ ps.c/unknown/744
not ok 1

C:\prj\ImageMagick-6.5.3\PerlMagick>perl -Iblib/lib -Iblib/arch t/ps/read.t
1..3
ReadImage: Exception 415: Postscript delegate failed `input.ps': No such file or directory @ ps.c/unknown/744
not ok 1
ReadImage: Exception 415: Postscript delegate failed `input.eps': No such file or directory @ ps.c/unknown/744
not ok 2
ok 3

C:\prj\ImageMagick-6.5.3\PerlMagick>perl -Iblib/lib -Iblib/arch t/ps/write.t
1..2
ReadImage output.ps: Exception 415: Postscript delegate failed `output.ps': No such file or directory @ ps.c/unknown/744
not ok 1
ReadImage output.eps: Exception 415: Postscript delegate failed `output.eps': No such file or directory @ ps.c/unknown/744
not ok 2

These errors happen with both precompiled ImageMagick-6.5.3-10-Q16-windows-dll.exe and self-built 6.5.3-10 version.

[magick]

Do you have Ghostscript installed? The PerlMagick Postscript tests are expected to fail if Ghostscript is not installed or not installed properly.