#ifndef __WIN32__
// We use the built-in GUID type on Windows
typedef struct _GUID {
  uint32_t Data1;
  uint16_t Data2;
  uint16_t Data3;
  uint8_t  Data4[8];
} _PACKED GUID;
#endif
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mingw32-make -f win32/Makefile.gcc
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the first patch u gave me said,

--- ../Audio-Scan-0.98-1/Scan.xs    2017-07-12 23:26:41 +1000
+++ Scan.xs    2017-07-12 23:25:17 +1000
@@ -12,7 +12,7 @@
 #endif
 
 // Headers for stat support
-#ifdef _MSC_VER
+#ifdef __WIN32__
----
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but my scan.xs contained,

// Headers for stat support
#ifndef _MSC_VER
# include <windows.h>
---
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so i have just replaced _MSC_VER with __WIN32__ at whatever files and locations you mentioned in that patch. Gave the previous output "Scan.o:Scan.c:(.text+0x8d00): undefined reference to `uncompress'" and ending up in fatal error as mentioned in above mails.

Now regarding this reply:

I downloaded zlib and unzipped it at "C:\vaman\zlib-1.2.8" (vaman directory also has audio scan project @C:\vaman\Audio-Scan-0.98). I executed this: C:\vaman\zlib-1.2.8\zlib-1.2.8>mingw32-make -f win32/Makefile.gcc as you said above. The generated libz.a i moved to the following location.

@Enter perl -V:libpth :
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It gave libpth='C:\MinGW\i686-w64-mingw32\lib. So i moved libz.a to the above location.

But still it does not get thru successfully.

C:\vaman\Audio-Scan-0.98\Audio-Scan-0.98>nmake

Microsoft (R) Program Maintenance Utility Version 12.00.21005.1
Copyright (C) Microsoft Corporation.  All rights reserved.

Skip blib\lib\Audio\Scan.pm (unchanged)
Running Mkbootstrap for Audio::Scan ()
        C:\Perl\bin\perl.exe -MExtUtils::Command -e chmod -- 644 Scan.
+bs
        gcc -c  -Iinclude -Isrc  -s -O2 -DWIN32 -DPERL_TEXTMODE_SCRIPT
+S -DUSE_SITECUSTOMIZE -DPERL_IMPLICIT_CONTEXT -DPERL_IMPLICIT_SYS -DU
+SE_PERLIO -fno-strict-aliasing -mms-bitfields -s -O2    -DVERSION=\"0
+.98\"  -DXS_VERSION=\"0.98\"  "-IC:\Perl\lib\CORE"   Scan.c
In file included from src/asf.c:42:0,
                 from Scan.xs:26:
include/asf.h:30:0: warning: "IsEqualGUID" redefined [enabled by defau
+lt]
c:\perl\site\lib\auto\mingw\bin\../lib/gcc/i686-w64-mingw32/4.6.3/../.
+./../../i686-w64-mingw32/include/guiddef.h:145:0: note: this is the l
+ocation of the previous definition
        dlltool --def Scan.def --output-exp dll.exp
        g++ -o blib\arch\auto\Audio\Scan\Scan.dll -Wl,--base-file -Wl,
+dll.base -mdll -s -static-libgcc -static-libstdc++ -L"C:\Perl\lib\COR
+E" -L"C:\MinGW\i686-w64-mingw32\lib" Scan.o   C:\Perl\lib\CORE\libper
+l518.a -lmoldname -lkernel32 -luser32 -lgdi32 -lwinspool -lcomdlg32 -
+ladvapi32 -lshell32 -lo
le32 -loleaut32 -lnetapi32 -luuid -lws2_32 -lmpr -lwinmm -lversion -lo
+dbc32 -lodbccp32 -lcomctl32 dll.exp
Scan.o:Scan.c:(.text+0x8d00): undefined reference to `uncompress'
Scan.o:Scan.c:(.text+0x950e): undefined reference to `uncompress'
c:/perl/site/lib/auto/mingw/bin/../lib/gcc/i686-w64-mingw32/4.6.3/../.
+./../../i686-w64-mingw32/bin/ld.exe: Scan.o: bad reloc address 0x0 in
+ section `.data'
c:/perl/site/lib/auto/mingw/bin/../lib/gcc/i686-w64-mingw32/4.6.3/../.
+./../../i686-w64-mingw32/bin/ld.exe: final link failed: Invalid opera
+tion
collect2: ld returned 1 exit status
NMAKE : fatal error U1077: 'C:\Perl\site\bin\g++.EXE' : return code '0
+x1'
Stop.
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Tried with dmake, but it was just to find the same issue again.

Does it work if you run nmake realclean and then start all over again from the beginning ?
If it still doesn't work then I need to see the output of the first step (ie when the Makefile.PL gets run).

Cheers,
Rob

ppm install Audio::Scan --force
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ppm install http://www.sisyphusion.tk/ppm/PPM-Sisyphusion.ppd --force
ppm install http://www.sisyphusion.tk/ppm/Audio-Scan.ppd --force
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Hi syphilis, many thanks to you as the solution you gave above worked for me: ppm install http://www.sisyphusion.tk/ppm/PPM-Sisyphusion.ppd --force ppm install http://www.sisyphusion.tk/ppm/Audio-Scan.ppd --force When i tried to use the same to set it up on another machine and use the audio scan module, it throws the following error: The program can not run because libgcc_x86_470.dll is missing. And i don't know where did i get those libraries from in the first place. Tried typing libgcc_x86_470 in cmd to check if it exists on the machine,negative. Tried google, most of the answers are about libgcc_s_dw2-1.dll missing or msvcr110.dll missing. Any help is highly appreciated. Also, to install and use audio::scan module, are there any prerequisites from machine? First time around as well I had faced lot of problems. Can you suggest me something which can resolve general dependency issues (may be some extra installations) or some steps to successfully install audio::scan as the straight installation from ppm install or cpan is not working. Thanks in advance!

Hi vamank,

My bad - I've changed the set up a little.
The missing file(s) used to get installed as part of the Audio::Scan install, but now they're installed separately. Just run:

ppm install http://www.sisyphusion.tk/ppm/PPM-Sisyphusion.ppd
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and that should be all that's needed.
The Audio::Scan ppd file does specify PPM-Siyphusion as a prerequisite, but I guess that the use of --force means that the absence of that prerequisite can be ignored.

With the new (undocumented) set up, the idea is that you add the sisyphusion repo to your list of repositories:

ppm repo add http://www.sisyphusion.tk/ppm
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and then install the desired module with:

ppm install http://www.sisyphusion.tk/ppm/Audio-Scan.ppd
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And that should install the module, along with any missing prerequisites.
However, there are still some packages there (namely, the ones that don't provide for perl version 5.26) that might still require --force.
You can check the full list of available modules, along with the versions of perl that they each cater for, at http://www.sisyphusion.tk/ppmindex.html.

Sorry for the mess.

Cheers,
Rob