bulk copy of latest physfs to our misc/libphysfs since this seems to fix an off-by-1 error reliably hit in readln read of 1 byte probably introduced in the addition of the buffered read. Whether this is excessive or whether libphysfs should even be maintained by us is another matter. But at least we shouldn't crash
// Common/Types.h
#ifndef __COMMON_TYPES_H
#define __COMMON_TYPES_H
#ifndef _7ZIP_BYTE_DEFINED
#define _7ZIP_BYTE_DEFINED
typedef unsigned char Byte;
#endif
#ifndef _7ZIP_INT16_DEFINED
#define _7ZIP_INT16_DEFINED
typedef short Int16;
#endif
#ifndef _7ZIP_UINT16_DEFINED
#define _7ZIP_UINT16_DEFINED
typedef unsigned short UInt16;
#endif
#ifndef _7ZIP_INT32_DEFINED
#define _7ZIP_INT32_DEFINED
typedef int Int32;
#endif
#ifndef _7ZIP_UINT32_DEFINED
#define _7ZIP_UINT32_DEFINED
typedef unsigned int UInt32;
#endif
#ifdef _MSC_VER
#ifndef _7ZIP_INT64_DEFINED
#define _7ZIP_INT64_DEFINED
typedef __int64 Int64;
#endif
#ifndef _7ZIP_UINT64_DEFINED
#define _7ZIP_UINT64_DEFINED
typedef unsigned __int64 UInt64;
#endif
#else
#ifndef _7ZIP_INT64_DEFINED
#define _7ZIP_INT64_DEFINED
typedef long long int Int64;
#endif
#ifndef _7ZIP_UINT64_DEFINED
#define _7ZIP_UINT64_DEFINED
typedef unsigned long long int UInt64;
#endif
#endif
#endif