converters/iconv versioning

Scott Furry scott.wl.furry at
Tue Mar 10 22:52:22 UTC 2015

I am running into in a situation with other C code where a call to iconv 
and passing in a non-const source buffer would result in a build 
warning. Others who use the same code on other platforms do not report 
this warning.

In tracking down the issue, I have discovered that there may be a 
difference in the iconv.h header file used on FreeBSD versus Mac/Linux 
et al.
line 48 shows that call to iconv
size_t iconv (iconv_t /*cd*/,
     char ** __restrict /*inbuf*/,  size_t * __restrict /*inbytesleft*/,
     char ** __restrict /*outbuf*/, size_t * __restrict /*outbytesleft*/);

/usr/local/include/iconv.h, line 83, shows something rather different.
Even the commentary around the code is different.
extern size_t iconv (iconv_t cd, const char* * inbuf, size_t 
*inbytesleft, char* * outbuf, size_t *outbytesleft);

My question is this, are we using a different or FreeBSD-specific 
version of iconv?


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