I've just checked with my Strawberry Perl (perl 5, version 18, subversion 2 (v5.18.2) built for MSWin32-x64-multi-thread), using the following patch to the 3 files (specified in the bug report): 
--- ../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__
 # include <windows.h>
 #else
 # include <sys/stat.h>
@@ -185,7 +185,7 @@
   uint64_t size = 0;
   uint32_t hash;
 
-#ifdef _MSC_VER
+#ifdef __WIN32__
   BOOL fOk;
   WIN32_FILE_ATTRIBUTE_DATA fileInfo;
 
--- ../Audio-Scan-0.98-1/include/common.h    2017-07-12 23:26:52 +1000
+++ include/common.h    2017-07-12 23:24:48 +1000
@@ -33,7 +33,7 @@
 
 #define DEFAULT_BLOCK_SIZE 4096
 
-#ifndef _MSC_VER
+#ifndef __WIN32__
 // We use the built-in GUID type on Windows
 typedef struct _GUID {
   uint32_t Data1;
--- ../Audio-Scan-0.98-1/src/common.c    2017-07-12 23:27:09 +1000
+++ src/common.c    2017-07-12 23:24:10 +1000
@@ -205,7 +205,7 @@
 off_t
 _file_size(PerlIO *infile)
 {
-#ifdef _MSC_VER
+#ifdef __WIN32__
   // Win32 doesn't work right with fstat
   off_t file_size;

[download]
Works fine for me.
And it should work fine with any ActiveState Perl for which 'perl-V:cc' reports that 'cc' is 'gcc'.

I must say that I find it exceedingly annoying that the author has done nothing to remove the need for this patching.
Audio-Scan-0.98 was released just 3 months ago, though the bug report was filed over 5 years ago !!

Cheers,
Rob

In reply to Re^3: unable to install Audio::Scan module from cpan by syphilis
in thread unable to install Audio::Scan module from cpan by vamank

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