[FFmpeg-devel] [PATCH] broken build with --disable-optimizations

Måns Rullgård mans
Mon Jan 18 15:01:11 CET 2010


Jai Menon <jmenon86 at gmail.com> writes:

> On Sun, Jan 17, 2010 at 10:06:17PM +0100, Michael Niedermayer wrote:
>> On Mon, Jan 18, 2010 at 01:11:40AM +0530, Jai Menon wrote:
>> > Hi,
>> > 
>> > Attached patch fixes it. This probably isn't correct and is just meant to be an indicator of what the issue is.
>> 
>> Could you show me the error message with which it fails?
>
> here you go :
>
> /home/jai/ffbuild/libavcodec/libavcodec.a(h264.o): In function
> `decode_significance_8x8_x86':
> /home/jai/ffmpeg/libavcodec/x86/h264_i386.h:97: undefined reference to
> `last_coeff_flag_offset_8x8'

The problem is all those non-inline functions in h264*.h.  There is
absolutely no sense whatsoever in having a non-inline function in a
header file.  Either the function should be inlined or it should not.
In the former case it should be marked inline explicitly, in the
latter it should be in a .c file.  Having multiple copies of
non-inline functions in the object code is obviously a bad thing.

Michael, if this is a work in progress and you're experimenting with
inlining, say so and that's fine.  If you do not intend for these
functions to be inlined, please move them to .c files.

-- 
M?ns Rullg?rd
mans at mansr.com



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