ipodpatcher: guard platform specific files.

Use the preprocessor to make platform specific files compile as empty files if
built for a different platform. This removes the need to distinguish in the
Makefile and simplifies creating a libipodpatcher.

git-svn-id: svn://svn.rockbox.org/rockbox/trunk@31169 a1c6a512-1295-4272-9138-f99709370657

rbutil/ipodpatcher/ipodio-posix.c

@@ -19,6 +19,7 @@
  *
  ****************************************************************************/
 
+#if !defined(_WIN32) /* all non-Windows platforms are considered POSIX. */
 
 #include <stdio.h>
 #include <unistd.h>
@@ -388,3 +389,5 @@ ssize_t ipod_write(struct ipod_t* ipod, unsigned char* buf, int nbytes)
     return write(ipod->dh, buf, nbytes);
 }
 
+#endif
+

rbutil/ipodpatcher/ipodio-win32-scsi.c

@@ -49,6 +49,7 @@
  *
  ****************************************************************************/
 
+#if defined(_WIN32)
 #include <windows.h>
 #include <stddef.h>
 #include <stdio.h>
@@ -119,3 +120,5 @@ int ipod_scsi_inquiry(struct ipod_t* ipod, int page_code,
         return -1;
     }
 }
+#endif
+

rbutil/ipodpatcher/ipodio-win32.c

@@ -25,6 +25,8 @@
  *
  ****************************************************************************/
 
+#if defined(_WIN32)
+
 #include <stdio.h>
 #include <unistd.h>
 #include <fcntl.h>
@@ -201,3 +203,5 @@ ssize_t ipod_write(struct ipod_t* ipod, unsigned char* buf, int nbytes)
     return count;
 }
 
+#endif
+