[HarfBuzz] Detecting ICU/FreeType without pkg-config?

[Neil Mayhew]

On 09-11-18 5:24 PM mpsuzuki at hiroshima-u.ac.jp wrote:
> FreeType2 ships freetype-config, a self-standing shell script working 
> as "pkg-config freetype2", even on the system without pkg-config.

ICU does the same thing, with icu-config, so AC_CHECK_PROG(ICU, 
icu-config, have_icu=true, have_icu=false) would probably work as a 
replacement for the PKG_CHECK_MODULES that's currently there.

--Neil