[evolution] Blacklist WebKitGTK+ 1.9.90.

[Matthew Barnes <mbarnes src gnome org>]

commit 17817da46acb0f6b9d2f1fa62e92459643d4a236
Author: Matthew Barnes <mbarnes redhat com>
Date:   Thu Sep 6 15:42:27 2012 -0400

    Blacklist WebKitGTK+ 1.9.90.
    
    Accidental API breakage => no build for you.

 configure.ac |   10 ++++++++++
 1 files changed, 10 insertions(+), 0 deletions(-)
---
diff --git a/configure.ac b/configure.ac
index ab71306..436f54b 100644
--- a/configure.ac
+++ b/configure.ac
@@ -250,6 +250,16 @@ PKG_CHECK_MODULES([GNOME_PLATFORM],
 AC_SUBST(GNOME_PLATFORM_CFLAGS)
 AC_SUBST(GNOME_PLATFORM_LIBS)
 
+dnl Blacklist WebKitGTK+ 1.9.90.
+if $PKG_CONFIG --exact-version "1.9.90" webkitgtk-3.0; then
+	AC_MSG_ERROR([
+
+	WebKitGTK+ 1.9.90 includes an unintentional API change
+	and is not usable with Evolution. Any other WebKitGTK+
+	release >= webkitgtk_minimum_version should work.
+])
+fi
+
 PKG_CHECK_MODULES([EVOLUTION_DATA_SERVER],
 	[camel-1.2 >= eds_minimum_version
 	 libebook-1.2 >= eds_minimum_version