DllExport int win32_fstat(int fd,struct stat *sbufptr);
DllExport int win32_stat(const char *name,struct stat *sbufptr);
DllExport int win32_pipe( int *phandles, unsigned int psize, int textmode );
-DllExport FILE* win32_popen( const char *command, const char *mode );
-DllExport int win32_pclose( FILE *pf);
+DllExport PerlIO* win32_popen( const char *command, const char *mode );
+DllExport int win32_pclose( PerlIO *pf);
DllExport int win32_rename( const char *oname, const char *newname);
DllExport int win32_setmode( int fd, int mode);
DllExport long win32_lseek( int fd, long offset, int origin);