FTGL.h not found

[David Bateman]

As far as I can see every RPM based distribution has FTGL 2.1.2 and not
2.1.3 and so the change to check for the header ftgl.h and not FTGL.h
means that no RPM based distribution can now use the FTLK backend.

D.


John W. Eaton wrote:
> On 10-Jul-2008, John W. Eaton wrote:
>
> | So do we agree that the configure script and sources should be changed
> | to look for and use ftgl.h?
>
> After taking a closer look, I don't see any FTGL headers included
> anywhere in the Octave sources, and the configure test actually
> includes FTGLTextureFont.h, so it seems we should check for that
> instead.  I made that change, but then the check still failed, so I
> finally looked in the config.log file and found that FTGLTextureFont.h
> is deprecated, so ftgl.h should be used instead.  OK, changing the
> test to use that, I now see:
>
>   configure:11194: checking FTGL/ftgl.h usability
>   configure:11211: g++ -c -ggdb3   conftest.cpp >&5
>   In file included from /usr/include/FTGL/ftgl.h:32,
> 		   from conftest.cpp:76:
>   /usr/include/ft2build.h:56:38: error: freetype/config/ftheader.h: No such file or directory
>   In file included from conftest.cpp:76:
>   /usr/include/FTGL/ftgl.h:33:10: error: #include expects "FILENAME" or <FILENAME>
>   /usr/include/FTGL/ftgl.h:34:10: error: #include expects "FILENAME" or <FILENAME>
>   /usr/include/FTGL/ftgl.h:35:10: error: #include expects "FILENAME" or <FILENAME>
>   In file included from /usr/include/FTGL/ftgl.h:110,
> 		   from conftest.cpp:76:
>   /usr/include/FTGL/FTPoint.h:75: error: expected ',' or '...' before '&' token
>   /usr/include/FTGL/FTPoint.h: In constructor 'FTPoint::FTPoint(int)':
>   /usr/include/FTGL/FTPoint.h:77: error: 'ft_vector' was not declared in this scope
>   ...
>
> in config.log.
>
> This happens because on my system, /usr/include/FTGL/ftgl.h has the
> lines
>
>   /* We need the Freetype headers */
>   #include <ft2build.h>
>   #include FT_FREETYPE_H
>   #include FT_GLYPH_H
>   #include FT_OUTLINE_H
>
> and, other than comments and a multiple-inclusion guard,
> /usr/include/ft2build.h is just the line
>
>     /* `<prefix>/include/freetype2' must be in your current inclusion path */
>   #include <freetype/config/ftheader.h>
>
> but the -I flags don't include the freetype2 directory.  So it looks
> like we need to check for the location of the freetype2 directory and
> add that to the include flags.  What is the best way to do that?  Will
> someone please fix this and submit a changeset?
>
> Thanks,
>
> jwe
>
>
>