[smuxi: 36/37] README.md, configure.ac: bump minimum Mono version to 4.6.2

[Mirco M. M. Bauer <mmmbauer src gnome org>]

commit 06e0cfdbce7b2b07734300ff15214dcd57235d35
Author: Mirco Bauer <meebey meebey net>
Date:   Sun Jan 3 23:52:11 2021 +0800

    README.md, configure.ac: bump minimum Mono version to 4.6.2
    
    Mono 4.6.2 was released on the 16th of Nov 2016 and every Linux distro should
    have this version or a higher one.

 README.md    | 4 ++--
 configure.ac | 2 +-
 2 files changed, 3 insertions(+), 3 deletions(-)
---
diff --git a/README.md b/README.md
index 64dd4f7e..1abef8ee 100644
--- a/README.md
+++ b/README.md
@@ -3,10 +3,10 @@ Software Requirements
 First you will need to install a few libraries to compile the source
 
 Libraries:
-* Mono SDK (>= 1.9.1)
+* Mono SDK (>= 4.6.2)
 * Nini (>= 1.1)
 * log4net
-* GTK# (>= 2.10)
+* GTK# (>= 2.10) (optional, but required for the GNOME frontend)
 * Notify# (optional)
 * Indicate# / MessagingMenu# (optional)
 * DBus# / NDesk.DBus (optional)
diff --git a/configure.ac b/configure.ac
index b65170b9..c8b60427 100644
--- a/configure.ac
+++ b/configure.ac
@@ -148,7 +148,7 @@ AC_SUBST([DEV_VERSION_SUFFIX])
 AC_SUBST([dist_version], "$DIST_VERSION")
 
 SHAMROCK_EXPAND_LIBDIR
-SHAMROCK_CHECK_MONO_MODULE(2.8)
+SHAMROCK_CHECK_MONO_MODULE(4.6.2)
 SHAMROCK_FIND_MONO_RUNTIME
 SHAMROCK_FIND_MONO_2_0_COMPILER_OR_HIGHER
 SHAMROCK_CHECK_MONO_GAC_ASSEMBLIES([