Re: FreeType autoconf checks

[Ian Pilcher]

Alexandre Julliard wrote:
> Yes; we should be using only relative paths in AC_CHECK_HEADER, since
> this is what we will use in the code. I don't think C_INCLUDE_PATH is
> portable either. Did you try setting CPPFLAGS instead?

CPPFLAGS works.  Where the heck is that documented?  (I can't find it in
the info pages for gcc or cpp.)

Updated patch will follow.