Evas: fine tuned the harfbuzz checks to make sure harfbuzz was compiled with freetype support and just check if it also compiled with glib support. ATM there's no good lib for checking unicode characteristics so until there is one, we optionally use harfbuzz's glib integration - such lib is planned by the guy who wrote Harfbuzz.

SVN revision: 56454

legacy/evas/configure.ac

@@ -305,6 +305,8 @@ fi
 
 # harfbuzz support
 have_harfbuzz="no"
+have_harfbuzz_glib="no"
+have_harfbuzz_ft="no"
 AC_ARG_ENABLE([harfbuzz],
    AC_HELP_STRING([--disable-harfbuzz],
       [disable complex text shaping and layouting support. @<:@default=enabled@:>@]),
@@ -329,6 +331,33 @@ if test "x${want_harfbuzz}" = "xyes" -o "x${want_harfbuzz}" = "xauto" ; then
           AC_MSG_ERROR([Harfbuzz not found (strict dependencies checking)])
        fi
       ])
+   if test "x$have_harfbuzz" = "xyes" ; then
+
+      CPPFLAGS_SAVE="$CPPFLAGS"
+      CPPFLAGS="$CPPFLAGS $HARFBUZZ_CFLAGS"
+# must have for usage with harfbuzz although harfbuzz may not have it.
+
+      AC_CHECK_HEADER(hb-ft.h,
+          [
+           have_harfbuzz_ft="yes"
+          ],
+          [
+           if test "x$want_harfbuzz" = "xyes" -a "x$use_strict" = "xyes" ; then
+              AC_MSG_ERROR([Harfbuzz-ft not found (strict dependencies checking)])
+           fi
+           have_harfbuzz="no"
+          ])
+# nice to have if harfbuzz has it
+      AC_CHECK_HEADER(hb-glib.h,
+          [
+           have_harfbuzz_glib="yes"
+           AC_DEFINE(HAVE_HARFBUZZ_GLIB, 1, [have harfbuzz glib support])
+          ],
+          [
+           have_harfbuzz_glib="no"
+          ])
+      CPPFLAGS="$CPPFLAGS_SAVE"
+   fi
 fi
 
 if test "x${have_harfbuzz}" = "xno"; then