Add 8.12 - Build m4

scripts/chapter8/8.12-m4.sh

@@ -0,0 +1,27 @@
+#!/bin/bash
+
+cd /sources
+tar xf m4-1.4.19.tar.xz
+cd m4-1.4.19
+
+./configure --prefix=/usr
+
+if [ $? -ne 0 ]
+then
+  exit 1
+fi
+
+make -j5
+
+if [ $? -ne 0 ]
+then
+  exit 1
+fi
+
+make check
+
+make install
+
+cd /sources
+rm -rf m4-1.4.19
+

scripts/main.sh

@@ -678,3 +678,15 @@ then
 	stop_script "chapter8/8.11-readline.sh"
 fi
 
+# Chapter 8.12
+# ============
+echo "Building m4"
+su -c "bash $SCRIPT/chapter8/8.12-m4.sh"
+
+# Exit on error
+check_exit_code
+if [ $exit_status -ne 0 ]
+then
+	stop_script "chapter8/8.12-m4.sh"
+fi
+