Do you have the same problem with Graham Barr's Scalar-List-Utils package? That package also uses PUSHBLOCK, so I wonder how it has been made to work. Does anyone have any ideas?

This is the most recent change from Scalar-List-Utils-1.06/ChangeLog:

Change 645 on 2001/09/07 by <gbarr@pobox.com> (Graham Barr)

    Some platforms require the main executable to export symbols
    needed by modules. In 5.7.2 and prior releases of perl
    Perl_cxinc was not exported so we need to duplicate its
    functionality
[download]

I'm sure that's the same problem that you're seeing. I'll see if I can steal Graham's solution and add it to Algorithm::FastPermute.

Thats awesome.

Thanks alot. Its nice to see a module writer being so responsive...

Yves / DeMerphq
--
When to use Prototypes?
Advanced Sorting - GRT - Guttman Rosler Transform

Could you try out http://London.pm.org/~robin/Algorithm-FastPermute-0.05.tar.gz? I've stolen Graham's cxinc hack, and also rolled in a couple of other portability fixes that I had lying around.

If it solves your problem, I'll upload it to CPAN later today.

Yes it would appear that you have resolved the problem.

I havent tried to use it yet so this could be premature (but probably isnt) but it passed all the tests and installed fine.

I just wanted to say that your responsiveness regarding this issue is/should be an example to the many who post XS modules that wont build under AS/Cygwin. Not all of us are good enough C programmers to figure this stuff out themselves. I know im not anyway.

BTW heres the output, thanks a million.

D:\Perl\HandBuild\Algorithm-FastPermute-0.05>perl makefile.pl
Checking if your kit is complete...
Looks good
Writing Makefile for Algorithm::FastPermute

D:\Perl\HandBuild\Algorithm-FastPermute-0.05>nmake

Microsoft (R) Program Maintenance Utility   Version 6.00.8168.0
Copyright (C) Microsoft Corp 1988-1998. All rights reserved.

cp FastPermute.pm blib\lib\Algorithm\FastPermute.pm
cp perms.pl blib\lib\Algorithm\perms.pl
        D:\Perl\bin\Perl.exe -ID:\Perl\lib -ID:\Perl\lib D:\Perl\lib\E
+xtUtils/xsubpp  -typemap D:\Perl\lib\ExtUtils\type
map FastPermute.xs > FastPermute.xsc && D:\Perl\bin\Perl.exe -ID:\Perl
+\lib -ID:\Perl\lib -MExtUtils::Command -e mv FastP
ermute.xsc FastPermute.c
        cl -c  -nologo -O1 -MD -DNDEBUG -DWIN32 -D_CONSOLE -DNO_STRICT
+ -DHAVE_DES_FCRYPT -DPERL_IMPLICIT_CONTEXT -DPERL_
IMPLICIT_SYS -DPERL_MSVCRT_READFIX -pg    -DVERSION=\"0.05\"  -DXS_VER
+SION=\"0.05\"  -ID:\Perl\lib\CORE  FastPermute.c
Command line warning D4002 : ignoring unknown option '-pg'
FastPermute.c
"Running Mkbootstrap for Algorithm::FastPermute ()"
        D:\Perl\bin\Perl.exe -ID:\Perl\lib -ID:\Perl\lib -MExtUtils::C
+ommand -e chmod 644 FastPermute.bs
        D:\Perl\bin\Perl.exe "-ID:\Perl\lib" "-ID:\Perl\lib" -MExtUtil
+s::Mksymlists  -e "Mksymlists('NAME' => 'Algorithm
::FastPermute', 'DLBASE' => 'FastPermute', 'DL_FUNCS' => {  }, 'FUNCLI
+ST' => [], 'IMPORTS' => {  }, 'DL_VARS' => []);"
        link -out:blib\arch\auto\Algorithm\FastPermute\FastPermute.dll
+ -dll -nologo -nodefaultlib -release  -libpath:"D:
\Perl\lib\CORE"  -machine:x86 FastPermute.obj   D:\Perl\lib\CORE\perl5
+6.lib oldnames.lib kernel32.lib user32.lib gdi32.l
ib winspool.lib  comdlg32.lib advapi32.lib shell32.lib ole32.lib oleau
+t32.lib  netapi32.lib uuid.lib wsock32.lib mpr.lib
 winmm.lib  version.lib odbc32.lib odbccp32.lib msvcrt.lib -def:FastPe
+rmute.def
   Creating library blib\arch\auto\Algorithm\FastPermute\FastPermute.l
+ib and object blib\arch\auto\Algorithm\FastPermute
\FastPermute.exp
        D:\Perl\bin\Perl.exe -ID:\Perl\lib -ID:\Perl\lib -MExtUtils::C
+ommand -e chmod 755 blib\arch\auto\Algorithm\FastP
ermute\FastPermute.dll
        D:\Perl\bin\Perl.exe -ID:\Perl\lib -ID:\Perl\lib -MExtUtils::C
+ommand -e cp FastPermute.bs blib\arch\auto\Algorit
hm\FastPermute\FastPermute.bs
        D:\Perl\bin\Perl.exe -ID:\Perl\lib -ID:\Perl\lib -MExtUtils::C
+ommand -e chmod 644 blib\arch\auto\Algorithm\FastP
ermute\FastPermute.bs

D:\Perl\HandBuild\Algorithm-FastPermute-0.05>nmake test

Microsoft (R) Program Maintenance Utility   Version 6.00.8168.0
Copyright (C) Microsoft Corp 1988-1998. All rights reserved.

        D:\Perl\bin\Perl.exe -Iblib\arch -Iblib\lib -ID:\Perl\lib -ID:
+\Perl\lib test.pl
1..8
ok 1
ok 2
ok 3
ok 4
ok 5
ok 6
ok 7
ok 8

D:\Perl\HandBuild\Algorithm-FastPermute-0.05>nmake install

Microsoft (R) Program Maintenance Utility   Version 6.00.8168.0
Copyright (C) Microsoft Corp 1988-1998. All rights reserved.

Installing D:\Perl\site\lib\auto\Algorithm\FastPermute\FastPermute.bs
Installing D:\Perl\site\lib\auto\Algorithm\FastPermute\FastPermute.dll
Installing D:\Perl\site\lib\auto\Algorithm\FastPermute\FastPermute.exp
Installing D:\Perl\site\lib\auto\Algorithm\FastPermute\FastPermute.lib
Installing D:\Perl\site\lib\Algorithm\FastPermute.pm
Installing D:\Perl\site\lib\Algorithm\perms.pl
Writing D:\Perl\site\lib\auto\Algorithm\FastPermute\.packlist
Appending installation info to D:\Perl\lib/perllocal.pod
[download]

Yves / DeMerphq
--
When to use Prototypes?
Advanced Sorting - GRT - Guttman Rosler Transform

This release is functionally identical to the previous one, but should be more portable. It has been reported to work on Win32 and IRIX, and has also been tested against Perl 5.005.

Thanks to demerphq for reporting the problem, and to gbarr for (unwittingly) fixing it.

  CPAN.pm: Going to build R/RO/ROBIN/Algorithm-FastPermute-0.03.tar.gz

Checking if your kit is complete...
Looks good
Writing Makefile for Algorithm::FastPermute
cp FastPermute.pm blib/lib/Algorithm/FastPermute.pm
cp perms.pl blib/lib/Algorithm/perms.pl
/usr/bin/perl -I/usr/lib/perl5/5.6.1/cygwin-multi -I/usr/lib/perl5/5.6
+.1 /usr/li
b/perl5/5.6.1/ExtUtils/xsubpp  -typemap /usr/lib/perl5/5.6.1/ExtUtils/
+typemap Fa
stPermute.xs > FastPermute.xsc && mv FastPermute.xsc FastPermute.c
gcc -c  -DPERL_USE_SAFE_PUTENV -fno-strict-aliasing -I/usr/local/inclu
+de -DUSEIM
PORTLIB -pg   -DVERSION=\"0.03\" -DXS_VERSION=\"0.03\"  -I/usr/lib/per
+l5/5.6.1/c
ygwin-multi/CORE  FastPermute.c
Running Mkbootstrap for Algorithm::FastPermute ()
chmod 644 FastPermute.bs
rm -f blib/arch/auto/Algorithm/FastPermute/FastPermute.dll
LD_RUN_PATH="" ld2  -s -L/usr/local/lib FastPermute.o  -o blib/arch/au
+to/Algorit
hm/FastPermute/FastPermute.dll  /usr/lib/perl5/5.6.1/cygwin-multi/CORE
+/libperl5_
6_1.a
dllwrap --dllname FastPermute.dll --driver-name gcc --dlltool dlltool 
+--export-a
ll-symbols --as as --output-def libFastPermute.def --output-lib libFas
+tPermute.a
 \
-s -L/usr/local/lib FastPermute.o  /usr/lib/perl5/5.6.1/cygwin-multi/C
+ORE/libper
l5_6_1.a
dllwrap: no export definition file provided
dllwrap: creating one, but that may not be what you want
FastPermute.o(.text+0x11):FastPermute.c: undefined reference to `mcoun
+t'
FastPermute.o(.text+0x252):FastPermute.c: undefined reference to `mcou
+nt'
FastPermute.o(.text+0xdef):FastPermute.c: undefined reference to `mcou
+nt'
collect2: ld returned 1 exit status
dllwrap: gcc exited with status 1
perlld: *** system() failed to execute
dllwrap --dllname FastPermute.dll --driver-name gcc --dlltool dlltool 
+--export-a
ll-symbols --as as --output-def libFastPermute.def --output-lib libFas
+tPermute.a
 \
-s -L/usr/local/lib FastPermute.o  /usr/lib/perl5/5.6.1/cygwin-multi/C
+ORE/libper
l5_6_1.a

make: *** [blib/arch/auto/Algorithm/FastPermute/FastPermute.dll] Error
+ 1
  /cygdrive/d/cygwin/bin/make  -- NOT OK
Running make test
  Can't test without successful make
Running make install
  make had returned bad status, install seems impossible

mdupont@PI{~} #perl -V
Summary of my perl5 (revision 5.0 version 6 subversion 1) configuratio
+n:
  Platform:
    osname=cygwin, osvers=1.3.2(0.3932), archname=cygwin-multi
    uname='cygwin_nt-4.0 loreley 1.3.2(0.3932) 2001-05-20 23:28 i686 u
+nknown '
    config_args='-de -Dusemultiplicity'
    hint=recommended, useposix=true, d_sigaction=define
    usethreads=undef use5005threads=undef useithreads=undef usemultipl
+icity=def
ne
    useperlio=undef d_sfio=undef uselargefiles=define usesocks=undef
    use64bitint=undef use64bitall=undef uselongdouble=undef
  Compiler:
    cc='gcc', ccflags ='-DPERL_USE_SAFE_PUTENV -fno-strict-aliasing -I
+/usr/loca
/include',
    optimize='-O2',
    cppflags='-DPERL_USE_SAFE_PUTENV -fno-strict-aliasing -I/usr/local
+/include'
    ccversion='', gccversion='2.95.3-5 (cygwin special)', gccosandvers
+=''
    intsize=4, longsize=4, ptrsize=4, doublesize=8, byteorder=1234
    d_longlong=define, longlongsize=8, d_longdbl=define, longdblsize=1
+2
    ivtype='long', ivsize=4, nvtype='double', nvsize=8, Off_t='off_t',
+ lseeksiz
=4
    alignbytes=8, usemymalloc=y, prototype=define
  Linker and Libraries:
    ld='ld2', ldflags =' -s -L/usr/local/lib'
    libpth=/usr/local/lib /usr/lib /lib
    libs=-lgdbm -lcrypt
    perllibs=-lcrypt
    libc=/usr/lib/libc.a, so=dll, useshrplib=true, libperl=libperl5_6_
+1.a
  Dynamic Linking:
    dlsrc=dl_dlopen.xs, dlext=dll, d_dlsymun=undef, ccdlflags=' -s'
    cccdlflags=' ', lddlflags=' -s -L/usr/local/lib'


Characteristics of this binary (from libperl):
  Compile-time options: MULTIPLICITY USE_LARGE_FILES PERL_IMPLICIT_CON
+TEXT
  Built under cygwin
  Compiled at Aug 22 2001 01:05:05
  @INC:
    /usr/lib/perl5/5.6.1/cygwin-multi
    /usr/lib/perl5/5.6.1
    /usr/lib/perl5/site_perl/5.6.1/cygwin-multi
    /usr/lib/perl5/site_perl/5.6.1
    /usr/lib/perl5/site_perl
[download]

Yves / DeMerphq
--
When to use Prototypes?
Advanced Sorting - GRT - Guttman Rosler Transform