Re: [ft] Need help to compile application

[Werner LEMBERG]

> As I am a new user of Freetype 2 library I am facing difficulty in
> compiling the application code.  I have moved the application code
> given below in a file example.c.  I have been able to successfully
> install the freetype 2 on my Linux machine.  What should be my
> command to compile the application example.c using gcc or make on a
> linux console?  Please help.

To the compiler, you must give a path to the FreeType include files at
compile time using `-I', and to the linker, you must give a path to
the FreeType library at link time (`-L'), together with the name of
the library itself (`-l').  Since gcc is normally used for both in a
simple compilation, you can do this in one step.  `-o' gives the name
of the final binary.

Let's assume that you've installed in /usr/local, then the include
files are in /usr/local/include/freetype2, and the library is in
/usr/local/lib.

  gcc -o example \
      -I/usr/local/include/freetype2 \
      -L/usr/local/lib \
      example.c \
      -lfreetype

Howewer, depending on your installation, you must add other libraries
also on which FreeType depends.  The `absolutely correct way' is to
use the `freetype-config' script to get the compiler and linker flags.
For example, on my GNU/Linux box the calls

  freetype-config --libs
  freetype-config --cflags

respectively return

  -L/usr/local/lib -lfreetype -lz -lbz2
  -I/usr/local/include/freetype2 -I/usr/local/include

Note that there is a problem in your program:

> #include <freetype/freetype.h>
> #include <freetype/ftglyph.h>

As demonstrated in the tutorial sample files, you are (a) missing the
central entry macro, ft2build.h, and (b) you should use symbolic
names:

  #include <ft2build.h>
  #include FT_FREETYPE_H
  #include FT_GLYPH_H

I have had only a quick look, but the rest of your code looks OK.


    Werner