3 files changed, 30 insertions, 0 deletions
diff --git a/newlib/libc/include/machine/ieeefp.h b/newlib/libc/include/machine/ieeefp.h
index 333603cd8..9da91332d 100644
--- a/newlib/libc/include/machine/ieeefp.h
+++ b/newlib/libc/include/machine/ieeefp.h
@@ -269,6 +269,11 @@
 #endif /* __ARMEL__ */
 #endif /* __MAVERICK__ */
 
+#ifdef __m32c__
+#define __IEEE_LITTLE_ENDIAN
+#define __SMALL_BITFIELDS
+#endif
+
 #ifdef __CRIS__
 #define __IEEE_LITTLE_ENDIAN
 #endif
diff --git a/newlib/libc/include/machine/setjmp.h b/newlib/libc/include/machine/setjmp.h
index efc11f06e..f38123aba 100644
--- a/newlib/libc/include/machine/setjmp.h
+++ b/newlib/libc/include/machine/setjmp.h
@@ -213,6 +213,15 @@ _BEGIN_STD_C
 #define _JBLEN 18
 #endif
 
+#ifdef __m32c__
+#if defined(__r8c_cpu__) || defined(__m16c_cpu__)
+#define _JBLEN (22/2)
+#else
+#define _JBLEN (34/2)
+#endif
+#define _JBTYPE unsigned short
+#endif /* __m32c__ */
+
 #ifdef _JBLEN
 #ifdef _JBTYPE
 typedef	_JBTYPE jmp_buf[_JBLEN];
diff --git a/newlib/libc/include/sys/config.h b/newlib/libc/include/sys/config.h
index 1dd045498..b287b5e28 100644
--- a/newlib/libc/include/sys/config.h
+++ b/newlib/libc/include/sys/config.h
@@ -105,6 +105,22 @@
 #define __BUFSIZ__ 16
 #define _REENT_SMALL
 #endif
+#ifdef __m32c__
+#define __SMALL_BITFIELDS
+#undef INT_MAX
+#undef UINT_MAX
+#define INT_MAX __INT_MAX__
+#define UINT_MAX (__INT_MAX__ * 2U + 1)
+#define MALLOC_ALIGNMENT 8
+#if defined(__r8c_cpu__) || defined(__m16c_cpu__)
+#define _POINTER_INT short
+#else
+#define _POINTER_INT long
+#endif
+#define __BUFSIZ__ 16
+#define _REENT_SMALL
+#endif /* __m32c__ */
+
 
 /* This block should be kept in sync with GCC's limits.h.  The point
    of having these definitions here is to not include limits.h, which