diff --git a/dkppc/patches/newlib-4.1.0.patch b/dkppc/patches/newlib-4.1.0.patch
index cf3ca59..5dcb251 100644
--- a/dkppc/patches/newlib-4.1.0.patch
+++ b/dkppc/patches/newlib-4.1.0.patch
@@ -8175,6 +8175,77 @@ index df8321461..eee4181cd 100644
  	    {
  	      /* no more input: return partial result */
  #ifdef __SCLE
+diff --git a/newlib/libc/stdio/vfprintf.c b/newlib/libc/stdio/vfprintf.c
+index 1aaf05aa4..b67182a79 100644
+--- a/newlib/libc/stdio/vfprintf.c
++++ b/newlib/libc/stdio/vfprintf.c
+@@ -108,6 +108,8 @@ Supporting OS subroutines required: <<close>>, <<fstat>>, <<isatty>>,
+ <<lseek>>, <<read>>, <<sbrk>>, <<write>>.
+ */
+ 
++#pragma GCC optimize ("Os")
++
+ #if defined(LIBC_SCCS) && !defined(lint)
+ /*static char *sccsid = "from: @(#)vfprintf.c	5.50 (Berkeley) 12/16/92";*/
+ static char *rcsid = "$Id$";
+@@ -1434,7 +1436,7 @@ reswitch:	switch (ch) {
+ string:
+ #endif
+ 			sign = '\0';
+-#ifndef __OPTIMIZE_SIZE__
++//#ifndef __OPTIMIZE_SIZE__
+ 			/* Behavior is undefined if the user passed a
+ 			   NULL string when precision is not 0.
+ 			   However, if we are not optimizing for size,
+@@ -1444,7 +1446,7 @@ string:
+ 				size = ((unsigned) prec > 6U) ? 6 : prec;
+ 			}
+ 			else
+-#endif /* __OPTIMIZE_SIZE__ */
++//#endif /* __OPTIMIZE_SIZE__ */
+ #ifdef _MB_CAPABLE
+ 			if (ch == 'S' || (flags & LONGINT)) {
+ 				mbstate_t ps;
+diff --git a/newlib/libc/stdio/vfscanf.c b/newlib/libc/stdio/vfscanf.c
+index 994cee7fc..5d1d0a1cd 100644
+--- a/newlib/libc/stdio/vfscanf.c
++++ b/newlib/libc/stdio/vfscanf.c
+@@ -74,6 +74,8 @@ These are GNU extensions.
+ Supporting OS subroutines required:
+ */
+ 
++#pragma GCC optimize ("Os")
++
+ #include <_ansi.h>
+ #include <reent.h>
+ #include <newlib.h>
+diff --git a/newlib/libc/stdio/vfwprintf.c b/newlib/libc/stdio/vfwprintf.c
+index 980b31e3b..722be905e 100644
+--- a/newlib/libc/stdio/vfwprintf.c
++++ b/newlib/libc/stdio/vfwprintf.c
+@@ -92,6 +92,9 @@ SEEALSO
+  *
+  * This code is large and complicated...
+  */
++
++#pragma GCC optimize ("Os")
++
+ #include <newlib.h>
+ 
+ #ifdef INTEGER_ONLY
+diff --git a/newlib/libc/stdio/vfwscanf.c b/newlib/libc/stdio/vfwscanf.c
+index f00d41a09..647f9e55a 100644
+--- a/newlib/libc/stdio/vfwscanf.c
++++ b/newlib/libc/stdio/vfwscanf.c
+@@ -74,6 +74,8 @@ PORTABILITY
+ C99, POSIX-1.2008
+ */
+ 
++#pragma GCC optimize ("Os")
++
+ #include <_ansi.h>
+ #include <reent.h>
+ #include <newlib.h>
 diff --git a/newlib/libc/stdlib/aligned_alloc.c b/newlib/libc/stdlib/aligned_alloc.c
 index feb22c24b..3dae0c9a9 100644
 --- a/newlib/libc/stdlib/aligned_alloc.c