[build] Simplify <freetype/config/ftconfig.h>
This patch simplifies the content of ftconfig.h by
moving things around a little, i.e.:
- Move public compiler macros needed by the FreeType
API headers to <freetype/config/compiler_macros.h>,
while all other macros that are only used by the
implementation are moved to
<freetype/internal/compiler_macros.h> instead.
- Move integer type definitions to
<freetype/config/integer_types.h> while allowing
the header's includer to define FT_SIZEOF_INT and
FT_SIZEOF_LONG (as required on Unix).
- Move Mac support macro definitions to
<freetype/config/mac_support.h>. It is unclear
at this point if this is required by the public
API header. Otherwise, this might be moved to
<freetype/internal/mac_support.h> instead.
- Rename builds/unix/
ftconfig.in to
builds/unix/
ftconfig.h.in since we are no longer
limited to 8.3 file names (yeah!). Also make
the file's content drastically shorter since
it can now include the other config/ headers
listed above.
NOTE: This patch does not try to move the definitions
of HAVE_UNISTD_H and HAVE_FCNTL_H from the public
ftconfig.h header generated by `configure` on Unix.
However, these values have no place in a public
header, and should probably be moved to compiler
flags instead. Maybe in a future patch.
0001-build-Simplify-freetype-config-ftconfig.h.patch