Backport fix from upstream to ensure latest versions install

Fix extlinux dependency for EL7

0001-imgcreate-dnfinst-Force-latest-packages-from-only-sp.patch

@@ -0,0 +1,35 @@
+From 30e6260c41a011241ed5659d2d85e72661807351 Mon Sep 17 00:00:00 2001
+From: Neal Gompa <ngompa13@gmail.com>
+Date: Sat, 24 Nov 2018 14:58:00 -0500
+Subject: [PATCH] imgcreate/dnfinst: Force latest packages from only specified
+ repos
+
+To ensure that the latest versions of things are picked for images,
+we'll set 'best=1' and 'obsoletes=1', just as Mock does.
+
+And to make sure we don't have host system repos leak in, we'll set
+'reposdir=/dev/null', too.
+---
+ imgcreate/dnfinst.py | 4 +++-
+ 1 file changed, 3 insertions(+), 1 deletion(-)
+
+diff --git a/imgcreate/dnfinst.py b/imgcreate/dnfinst.py
+index 720dd7d..06a5b24 100644
+--- a/imgcreate/dnfinst.py
++++ b/imgcreate/dnfinst.py
+@@ -73,9 +73,11 @@ class DnfLiveCD(dnf.Base):
+             conf += "plugins=1\n"
+         else:
+             conf += "plugins=0\n"
+-        conf += "reposdir=\n"
++        conf += "reposdir=/dev/null\n"
+         conf += "failovermethod=priority\n"
+         conf += "keepcache=1\n"
++        conf += "obsoletes=1\n"
++        conf += "best=1\n"
+         conf += "tsflags=nocontexts\n"
+ 
+         f = open(confpath, "w+")
+-- 
+2.17.2
+

livecd-tools.spec

@@ -17,13 +17,16 @@
 Summary: Tools for building live CDs
 Name: livecd-tools
 Version: 26.0
-Release: 2%{?dist}
+Release: 3%{?dist}
 Epoch: 1
 License: GPLv2
 Group: System Environment/Base
 URL: https://github.com/livecd-tools/livecd-tools
 Source0: https://releases.pagure.org/%{name}/%{name}-%{version}.tar.gz
 
+# Patches from upstream
+Patch0001: 0001-imgcreate-dnfinst-Force-latest-packages-from-only-sp.patch
+
 %if %{with python2}
 BuildRequires: python2-devel
 %endif
@@ -76,7 +79,7 @@ Requires: syslinux >= 4.05-13
 Requires: syslinux >= 6.02-4
 Requires: syslinux-nonlinux >= 6.02-4
 %endif
-Requires: /sbin/extlinux
+Requires: syslinux-extlinux
 %endif
 
 # For legacy ppc32 systems
@@ -222,6 +225,10 @@ rm -rfv %{buildroot}%{_mandir}/man8/livecd-iso-to-*
 %endif
 
 %changelog
+* Sat Nov 24 2018 Neal Gompa <ngompa13@gmail.com> - 1:26.0-3
+- Backport fix from upstream to ensure latest versions install
+- Fix extlinux dependency for EL7
+
 * Fri Nov 23 2018 Neal Gompa <ngompa13@gmail.com> - 1:26.0-2
 - Fix Obsoletes of python2-imgcreate from <F29 for F30+