[gimp] build: Lowering HarfBuzz version further to 0.9.19 to support older distros

[Mukund Sivaraman <muks src gnome org>]

commit 25c93abbc4a919d64dddc727a26461a354f63186
Author: Mukund Sivaraman <muks banu com>
Date:   Sat May 3 21:12:38 2014 +0530

    build: Lowering HarfBuzz version further to 0.9.19 to support older distros

 configure.ac |    2 +-
 1 files changed, 1 insertions(+), 1 deletions(-)
---
diff --git a/configure.ac b/configure.ac
index 932daa1..a93c639 100644
--- a/configure.ac
+++ b/configure.ac
@@ -51,7 +51,7 @@ m4_define([cairo_pdf_required_version], [1.12.2])
 m4_define([pangocairo_required_version], [1.29.4])
 m4_define([fontconfig_required_version], [2.2.0])
 m4_define([freetype2_required_version], [2.1.7])
-m4_define([harfbuzz_required_version], [0.9.26])
+m4_define([harfbuzz_required_version], [0.9.19])
 m4_define([gtkdoc_required_version], [1.0])
 m4_define([webkit_required_version], [1.6.1])
 m4_define([alsa_required_version], [1.0.0])