[Ffmpeg-devel] Re: mathematics.c kills compilation on Mac Os X Tiger

Laine Lee llee
Mon Dec 19 07:10:53 CET 2005

>I have been trying to compile ffmpeg latest cvs since sometime ago. But failed.

I don't think the lrintf definition is pertinent for OS X. I was able to
successfully build ffmpeg today by simply removing the lrintf definition in
the common.h file.

I changed 

/* XXX: add ISOC specific test to avoid specific BSD testing. */
/* better than nothing implementation. */
/* btw, rintf() is existing on fbsd too -- alex */
static always_inline long int lrintf(float x)
#ifdef CONFIG_WIN32
#  ifdef ARCH_X86
    int32_t i;
    asm volatile(
        "fistpl %0\n\t"
        : "=m" (i) : "t" (x) : "st"
    return i;
#  else
    /* XXX: incorrect, but make it compile */
    return (int)(x + (x < 0 ? -0.5 : 0.5));
#  endif /* ARCH_X86 */
    return (int)(rint(x));
#endif /* CONFIG_WIN32 */
#ifndef _ISOC9X_SOURCE
#define _ISOC9X_SOURCE
#include <math.h>
#endif /* HAVE_LRINTF */


#ifndef _ISOC9X_SOURCE
#define _ISOC9X_SOURCE
#include <math.h>

Laine Lee 
Visit the Mac Shack at http://moss.utsa.edu
My Homepage: http://lonestar.utsa.edu/llee

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