From 230b9ba210ea813ced6a8daf2c6cdb7481a5c63b Mon Sep 17 00:00:00 2001
From: Aditya <bluenerd@protonmail.com>
Date: Tue, 10 Jan 2023 15:26:58 +0530
Subject: [PATCH] Add 8.12 - Build m4

---
 scripts/chapter8/8.12-m4.sh | 27 +++++++++++++++++++++++++++
 scripts/main.sh             | 12 ++++++++++++
 2 files changed, 39 insertions(+)
 create mode 100644 scripts/chapter8/8.12-m4.sh

diff --git a/scripts/chapter8/8.12-m4.sh b/scripts/chapter8/8.12-m4.sh
new file mode 100644
index 0000000..21e18f4
--- /dev/null
+++ b/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
+
diff --git a/scripts/main.sh b/scripts/main.sh
index 0bd8369..ed527d2 100644
--- a/scripts/main.sh
+++ b/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
+