From 8df045cc7d6ca21dd8ebbbe11ca24dfe81851f3b Mon Sep 17 00:00:00 2001
From: "Ryan C. Gordon" <[EMAIL REDACTED]>
Date: Tue, 22 Mar 2022 15:53:40 -0400
Subject: [PATCH] stdlib: just cast iconv()'s 2nd arg to void *.
This makes the compiler happy (enough) regardless of whether the C runtime
headers think this argument should be const or not.
Fixes #4966.
---
src/stdlib/SDL_iconv.c | 21 +++------------------
1 file changed, 3 insertions(+), 18 deletions(-)
diff --git a/src/stdlib/SDL_iconv.c b/src/stdlib/SDL_iconv.c
index c88731b8ddb..3f5c8274509 100644
--- a/src/stdlib/SDL_iconv.c
+++ b/src/stdlib/SDL_iconv.c
@@ -36,18 +36,6 @@
#define LIBICONV_PLUG 1
#endif
#include <iconv.h>
-
-/* Depending on which standard the iconv() was implemented with,
- iconv() may or may not use const char ** for the inbuf param.
- If we get this wrong, it's just a warning, so no big deal.
-*/
-#if defined(_XGP6) || defined(__APPLE__) || defined(__RISCOS__) || defined(__FREEBSD__) || \
- defined(__EMSCRIPTEN__) || \
- (defined(__GLIBC__) && ((__GLIBC__ > 2) || (__GLIBC__ == 2 && __GLIBC_MINOR__ >= 2)) || \
- (defined(_NEWLIB_VERSION)))
-#define ICONV_INBUF_NONCONST
-#endif
-
#include <errno.h>
SDL_COMPILE_TIME_ASSERT(iconv_t, sizeof (iconv_t) <= sizeof (SDL_iconv_t));
@@ -69,12 +57,9 @@ SDL_iconv(SDL_iconv_t cd,
const char **inbuf, size_t * inbytesleft,
char **outbuf, size_t * outbytesleft)
{
- size_t retCode;
-#ifdef ICONV_INBUF_NONCONST
- retCode = iconv((iconv_t) ((uintptr_t) cd), (char **) inbuf, inbytesleft, outbuf, outbytesleft);
-#else
- retCode = iconv((iconv_t) ((uintptr_t) cd), inbuf, inbytesleft, outbuf, outbytesleft);
-#endif
+ /* iconv's second parameter may or may not be `const char const *` depending on the
+ C runtime's whims. Casting to void * seems to make everyone happy, though. */
+ const size_t retCode = iconv((iconv_t) ((uintptr_t) cd), (void *) inbuf, inbytesleft, outbuf, outbytesleft);
if (retCode == (size_t) - 1) {
switch (errno) {
case E2BIG: