devkitA64: make read/write posix compliant

Author: WinterMute

dka64/patches/newlib-4.4.0.20231231.patch

@@ -11065,10 +11065,10 @@ index f810b008f..ca7e11dc7 100644
 +
  #endif /* !_SYS__TIMESPEC_H_ */
 diff --git a/newlib/libc/include/sys/config.h b/newlib/libc/include/sys/config.h
-index 5dcc77a80..fdf232649 100644
+index 5dcc77a80..10a992c21 100644
 --- a/newlib/libc/include/sys/config.h
 +++ b/newlib/libc/include/sys/config.h
-@@ -4,8 +4,21 @@
+@@ -4,8 +4,26 @@
  #include <machine/ieeefp.h>  /* floating point macros */
  #include <sys/features.h>	/* POSIX defs */
 
@@ -11088,6 +11088,11 @@ index 5dcc77a80..fdf232649 100644
 +#define MALLOC_ALIGNMENT_THRESHOLD 64
 +#define __BUFSIZ__ 32768
 +#define __DYNAMIC_REENT__
++#endif
++
++#ifdef __DEVKITPRO__
++#define _READ_WRITE_RETURN_TYPE _ssize_t
++#define _READ_WRITE_BUFSIZE_TYPE size_t
  #endif
 
  #ifdef __AMDGCN__