From 38e0504c32d569d9eb5f18c2cc43c79e2cf2994b Mon Sep 17 00:00:00 2001
From: Sam Lantinga <slouken@libsdl.org>
Date: Thu, 28 Jun 2007 06:47:35 +0000
Subject: [PATCH] Okay, apparently the newer standard specifies char** for the
 inbuf parameter to iconv() (See
 http://lists.debian.org/debian-glibc/2004/05/msg00006.html)

I'm casting in the general case, but I added a non-const codepath in
case it matters on some platform.
---
 src/stdlib/SDL_iconv.c | 15 ++++++++++++++-
 1 file changed, 14 insertions(+), 1 deletion(-)

diff --git a/src/stdlib/SDL_iconv.c b/src/stdlib/SDL_iconv.c
index 1285f4916..245c4480c 100644
--- a/src/stdlib/SDL_iconv.c
+++ b/src/stdlib/SDL_iconv.c
@@ -34,7 +34,20 @@ size_t SDL_iconv(SDL_iconv_t cd,
                  const char **inbuf, size_t *inbytesleft,
                  char **outbuf, size_t *outbytesleft)
 {
-	size_t retCode = iconv(cd, inbuf, inbytesleft, outbuf, outbytesleft);
+	size_t retCode;
+#ifdef ICONV_REALLY_MODIFIES_INBUF
+	if ( inbuf && *inbuf && inbytesleft ) {
+		char *tmp = SDL_stack_alloc(char, *inbytesleft);
+		char *ptr = tmp;
+		retCode = iconv(cd, &ptr, inbytesleft, outbuf, outbytesleft);
+		inbuf += (ptr - tmp);
+		SDL_stack_free(tmp);
+	} else {
+		retCode = iconv(cd, NULL, inbytesleft, outbuf, outbytesleft);
+	}
+#else
+	retCode = iconv(cd, (char **)inbuf, inbytesleft, outbuf, outbytesleft);
+#endif
 	if ( retCode == (size_t)-1 ) {
 		switch(errno) {
 		    case E2BIG: