[patch] C++ mangeling of SPU headers

[Ken Werner]

Hi,

this patch prevents the symbols from being mangled if g++ is used. Ok to 
apply?

Ken

newlib/ChangeLog:

2008-06-09  Ken Werner  <ken.werner@de.ibm.com>

	* libc/machine/spu/sys/dirent.h: Add extern "C" specifier if C++.
	* libc/machine/spu/sys/sched.h: Likewise.
	* libc/machine/spu/sys/syscall.h: Likewise.

Index: src/newlib/libc/machine/spu/sys/dirent.h
===================================================================
--- src.orig/newlib/libc/machine/spu/sys/dirent.h
+++ src/newlib/libc/machine/spu/sys/dirent.h
@@ -32,6 +32,9 @@
 */
 #ifndef _SYS_DIRENT_H
 #define _SYS_DIRENT_H
+#ifdef __cplusplus
+extern "C" {
+#endif
 
 #define MAXNAMLEN	255
 
@@ -54,4 +57,7 @@ struct dirent *readdir (DIR *);
 void rewinddir(DIR *);
 void seekdir(DIR *dir, off_t offset);
 off_t telldir(DIR *dir);
+#ifdef __cplusplus
+}
+#endif
 #endif
Index: src/newlib/libc/machine/spu/sys/sched.h
===================================================================
--- src.orig/newlib/libc/machine/spu/sys/sched.h
+++ src/newlib/libc/machine/spu/sys/sched.h
@@ -1,6 +1,12 @@
 #ifndef _SYS_SCHED_H
 #define _SYS_SCHED_H
+#ifdef __cplusplus
+extern "C" {
+#endif
 
 int sched_yield(void);
 
+#ifdef __cplusplus
+}
+#endif
 #endif
Index: src/newlib/libc/machine/spu/sys/syscall.h
===================================================================
--- src.orig/newlib/libc/machine/spu/sys/syscall.h
+++ src/newlib/libc/machine/spu/sys/syscall.h
@@ -1,4 +1,10 @@
 #ifndef _SYS_SYSCALL_H
 #define _SYS_SYSCALL_H
+#ifdef __cplusplus
+extern "C" {
+#endif
 int __send_to_ppe(unsigned int signalcode, unsigned int opcode, void *data);
+#ifdef __cplusplus
+}
+#endif
 #endif