Downgrade requirement to Libtool 2.4.0.

Courtesy to OpenWRT environments as requested by @champtar in #540.

Downgrade requirement to Libtool 2.4.0.
Courtesy to OpenWRT environments as requested by @champtar in #540.
96157870 · Hisham · 6d4df3d1 · 96157870
Commit 96157870 authored Sep 11, 2016 by Hisham
--- a/configure.ac
+++ b/configure.ac
@@ -2,7 +2,7 @@
 # Process this file with autoconf to produce a configure script.

 AC_PREREQ(2.65)
-LT_PREREQ([2.4.2])
+LT_PREREQ([2.4.0])
 AC_INIT([htop],[2.0.2],[hisham@gobolinux.org])

 SOURCE_DATE_EPOCH="${SOURCE_DATE_EPOCH:-$(date +%s)}"