Require HarfBuzz 2.0.0.

This is needed to make commit f1f9705f9 work.

* CMakeLists.txt (HARFBUZZ_MIN_VERSION), builds/unix/configure.raw
(harfbuzz_pkg), meson.build (harfbuzz_dep): Updated.
diff --git a/CMakeLists.txt b/CMakeLists.txt
index 54d91ba..ba158e3 100644
--- a/CMakeLists.txt
+++ b/CMakeLists.txt
@@ -205,7 +205,7 @@
 
 
 # Find dependencies
-set(HARFBUZZ_MIN_VERSION "1.8.0")
+set(HARFBUZZ_MIN_VERSION "2.0.0")
 if (FT_WITH_HARFBUZZ)
   find_package(HarfBuzz ${HARFBUZZ_MIN_VERSION} REQUIRED)
 else ()
diff --git a/ChangeLog b/ChangeLog
index 1e4c9a5..a1b27b6 100644
--- a/ChangeLog
+++ b/ChangeLog
@@ -1,3 +1,12 @@
+2021-01-23  Werner Lemberg  <wl@gnu.org>
+
+	Require HarfBuzz 2.0.0.
+
+	This is needed to make commit f1f9705f9 work.
+
+	* CMakeLists.txt (HARFBUZZ_MIN_VERSION), builds/unix/configure.raw
+	(harfbuzz_pkg), meson.build (harfbuzz_dep): Updated.
+
 2021-01-22  Alexei Podtelezhnikov  <apodtele@gmail.com>
 
 	* autogen.sh: Absorb `version.sed'.
diff --git a/builds/unix/configure.raw b/builds/unix/configure.raw
index 0f9173c..e8ccdee 100644
--- a/builds/unix/configure.raw
+++ b/builds/unix/configure.raw
@@ -488,7 +488,7 @@
 
 have_harfbuzz=no
 if test x"$with_harfbuzz" = xyes -o x"$with_harfbuzz" = xauto; then
-  harfbuzz_pkg="harfbuzz >= 1.8.0"
+  harfbuzz_pkg="harfbuzz >= 2.0.0"
   have_harfbuzz_pkg=no
 
   if test x"$HARFBUZZ_CFLAGS" = x -a x"$HARFBUZZ_LIBS" = x; then
diff --git a/meson.build b/meson.build
index cd63cf0..b773d4b 100644
--- a/meson.build
+++ b/meson.build
@@ -274,7 +274,7 @@
 
 # Harfbuzz support
 harfbuzz_dep = dependency('harfbuzz',
-                 version: '>= 1.8.0',
+                 version: '>= 2.0.0',
                  required: get_option('harfbuzz'))
 if harfbuzz_dep.found()
   ftoption_command += ['--enable=FT_CONFIG_OPTION_USE_HARFBUZZ']