[newlib-cygwin] Add __va_list to <sys/_types.h>

[Corinna Vinschen]

https://sourceware.org/git/gitweb.cgi?p=newlib-cygwin.git;h=7656cefc07d33c2b9bbeba6e8f4b8f2dc945c32b

commit 7656cefc07d33c2b9bbeba6e8f4b8f2dc945c32b
Author: Sebastian Huber <sebastian.huber@embedded-brains.de>
Date:   Fri Apr 15 13:44:26 2016 +0200

    Add __va_list to <sys/_types.h>
    
    Add __va_list to <sys/_types.h> for BSD compatibility.  In FreeBSD this
    typedef is provided by the various architecture-specific
    <machine/_types.h> in a copy and paste manner.
    
    Signed-off-by: Sebastian Huber <sebastian.huber@embedded-brains.de>

Diff:
---
 newlib/libc/include/sys/_types.h | 6 ++++++
 1 file changed, 6 insertions(+)

diff --git a/newlib/libc/include/sys/_types.h b/newlib/libc/include/sys/_types.h
index 041ad74..6a2c94d 100644
--- a/newlib/libc/include/sys/_types.h
+++ b/newlib/libc/include/sys/_types.h
@@ -177,4 +177,10 @@ typedef	unsigned short	__nlink_t;
 typedef	long		__suseconds_t;	/* microseconds (signed) */
 typedef	unsigned long	__useconds_t;	/* microseconds (unsigned) */
 
+#ifdef __GNUCLIKE_BUILTIN_VARARGS
+typedef	__builtin_va_list	__va_list;
+#else
+typedef	char *			__va_list;
+#endif /* __GNUCLIKE_BUILTIN_VARARGS */
+
 #endif	/* _SYS__TYPES_H */