When I broke up the stdio code, the "support pre C99 compilers" va_copy compat

define was no longer visible to vasprintf.  I didn't catch this since I no
longer use such old tools.  Unfortunately, some well-meaning but misguided
individual decided to just cut-and-paste the macro.  :-(
Try to clean up the situation by putting it into a header that can be overriden
by any archs that need to.  If this breaks for anyone (as I said, I no longer
use such old tools and so haven't tested), let me know and I'll fix it.

libc/stdio/vasprintf.c

@@ -7,6 +7,7 @@
 
 #include "_stdio.h"
 #include <stdarg.h>
+#include <bits/uClibc_va_copy.h>
 
 #ifdef __UCLIBC_MJN3_ONLY__
 /* Do the memstream stuff inline to avoid fclose and the openlist? */
@@ -17,19 +18,6 @@
 #warning Skipping vasprintf since no vsnprintf!
 #else
 
-/* Deal with pre-C99 compilers. */
-
-#ifndef va_copy
-
-#ifdef __va_copy
-#define va_copy(A,B)	__va_copy(A,B)
-#else
-#warning Neither va_copy (C99/SUSv3) nor __va_copy is defined.  Using a simple copy instead.  But you should really check that this is appropriate...
-#define va_copy(A,B)	A = B
-#endif
-
-#endif /* va_copy */
-
 int vasprintf(char **__restrict buf, const char * __restrict format,
 			 va_list arg)
 {

libc/stdio/vfprintf.c

@@ -118,6 +118,7 @@
 #endif /* __UCLIBC_HAS_WCHAR__ */
 
 #include <bits/uClibc_uintmaxtostr.h>
+#include <bits/uClibc_va_copy.h>
 
 /* Some older or broken gcc toolchains define LONG_LONG_MAX but not
  * LLONG_MAX.  Since LLONG_MAX is part of the standard, that's what
@@ -205,27 +206,6 @@
 #define MAX_ARGS        (MAX_ARGS_PER_SPEC + 2)
 #endif
 
-
-/**********************************************************************/
-/* Deal with pre-C99 compilers. */
-
-#ifndef va_copy
-
-#ifdef __va_copy
-#define va_copy(A,B)	__va_copy(A,B)
-#else
-	/* TODO -- maybe create a bits/vacopy.h for arch specific versions
-	 * to ensure we get the right behavior?  Either that or fall back
-	 * on the portable (but costly in size) method of using a va_list *.
-	 * That means a pointer derefs in the va_arg() invocations... */
-#warning Neither va_copy (C99/SUSv3) or __va_copy is defined.  Using a simple copy instead.  But you should really check that this is appropriate...
-	/* the glibc manual suggests that this will usually suffice when
-        __va_copy doesn't exist.  */
-#define va_copy(A,B)	A = B
-#endif
-
-#endif /* va_copy */
-
 /**********************************************************************/
 
 #define __PA_FLAG_INTMASK \

libc/sysdeps/linux/common/bits/uClibc_va_copy.h

@@ -0,0 +1,27 @@
+/* Copyright (C) 2005       Manuel Novoa III    <mjn3@codepoet.org>
+ *
+ * GNU Library General Public License (LGPL) version 2 or later.
+ *
+ * Dedicated to Toni.  See uClibc/DEDICATION.mjn3 for details.
+ */
+
+#ifndef _UCLIBC_VA_COPY_H
+#define _UCLIBC_VA_COPY_H 1
+
+#include <stdarg.h>
+
+/* Deal with pre-C99 compilers. */
+#ifndef va_copy
+
+#ifdef __va_copy
+#define va_copy(A,B)	__va_copy(A,B)
+#else
+#warning Neither va_copy (C99/SUSv3) or __va_copy is defined.  Using a simple copy instead.  But you should really check that this is appropriate and supply an arch-specific override if necessary.
+	/* the glibc manual suggests that this will usually suffice when
+        __va_copy doesn't exist.  */
+#define va_copy(A,B)	A = B
+#endif
+
+#endif /* va_copy */
+
+#endif /* _UCLIBC_VA_COPY_H */