[FFmpeg-devel] ffmpeg-2.1 + freetype-2.5.1 build break + fix info

[David Favor]

David Favor wrote:
> The break involves this line from configure...
> 
>     enabled libfreetype && require_pkg_config freetype2 "ft2build.h 
> freetype/freetype.h" FT_Init_FreeType
> 
> What works is...
> 
>     enabled libfreetype && require_pkg_config freetype2 "ft2build.h 
> freetype/freetype.h" FT_Init_FreeType
> 
> Looking at recent git activity on 'configure', no changes seem to have 
> been made.
> 
> Then I remembered, I updated freetype today... so I'm guessing freetype 
> changed this file's location.
> 
> Looking at Freetype, include files show up different places for 
> different versions of Freetype...
> 
>    OSX Mavericks + Freetype-2.5.1  -> /opt/local/include/freetype2
> 
>    Ubuntu 13.10  + Freetype-2.4.12 -> /usr/include/freetype2/freetype
> 
> So it appears Freetype has removed the 'freetype' subdirectory. Ugh...
> 
> I'm unsure of the correct way to fix this.
> 
> A temp fix is either hack configure to remove the 'freetype' 
> subdirectory or...
> 
>    cd /opt/local/include/freetype2 && mkdir freetype && cd freetype && 
> ln -s ../freetype.h
> 
> Please let me know the ticket opened for this problem + I'll open a 
> MacPorts ticket
> to reference the ffmpeg ticket, because likely this problem will crop up 
> shortly in MacPorts.
> 
> Thanks.

Ugh... it gets uglier... This Freetype change breaks every reference to
Freetype include files, so the fixes I suggested are wrong.

A temp fix is to do add this to top of build processes...

     inctop=/opt/local/include
     cd $inctop/freetype2 && rm -f freetype && ln -s . freetype

The rm + ln must be used, because this is a very bad symlink, so doing
ln -sf fails on some systems.

Looks like correct fix is for configure to key off...

     pkg-config freetype2 --print-provides

and anything > 16.0.0 uses new include file hierarchy + then in the source,
keep off the the Freetype version using #ifdefs to set include file hierarchy.

All very ugly.

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