[gnuplot] Rebase to 4.6.2

[Frantisek Kluknavsky]

commit 66578fd253764d33ae0f6239262a93735091417d
Author: Frantisek Kluknavsky <fkluknav at redhat.com>
Date:   Thu Apr 4 16:58:22 2013 +0200

    Rebase to 4.6.2
    
    - Added explicit build dependency on ImageMagick. It somehow disappeared from emacs dependencies.
    - Patched gnuplot.texi, new latex refused to compile it.

 gnuplot.spec |    2 +-
 1 files changed, 1 insertions(+), 1 deletions(-)
---
diff --git a/gnuplot.spec b/gnuplot.spec
index 62c77dd..5a777ac 100644
--- a/gnuplot.spec
+++ b/gnuplot.spec
@@ -36,7 +36,7 @@ BuildRequires: pango-devel, libedit-devel, tex(latex), tex(subfigure.sty)
 BuildRequires: tex(cm-super-t1.enc), tex(pdftex.map), tex-tex4ht, texinfo
 BuildRequires: zlib-devel, libjpeg-turbo-devel, tex(ecrm1000.tfm)
 #for some reason, ImageMagick disappeared from emacs dependecies
-BuildRequires: ImageMagick
+BuildRequires: ImageMagick autoconf
 %if !0%{?rhel:1}
 BuildRequires: wxGTK-devel
 %endif