Add 8.57 - Build gawk

scripts/chapter8/8.57-gawk.sh

@@ -0,0 +1,30 @@
+#!/bin/bash
+
+cd /sources
+tar xf gawk-5.1.1.tar.xz
+cd gawk-5.1.1
+
+sed -i 's/extras//' Makefile.in
+./configure --prefix=/usr
+
+if [ $? -ne 0 ]
+then
+  exit 1
+fi
+
+make -j5
+
+if [ $? -ne 0 ]
+then
+  exit 1
+fi
+
+make check
+
+make install
+
+mkdir -pv                                   /usr/share/doc/gawk-5.1.1
+cp    -v doc/{awkforai.txt,*.{eps,pdf,jpg}} /usr/share/doc/gawk-5.1.1
+
+cd /sources
+rm -rf gawk-5.1.1

scripts/main.sh

@@ -1222,3 +1222,15 @@ then
 	stop_script "chapter8/8.56-diffutils.sh"
 fi
 
+# Chapter 8.57
+# ============
+echo "Building gawk"
+su -c "bash $SCRIPT/chapter8/8.57-gawk.sh"
+
+# Exit on error
+check_exit_code
+if [ $exit_status -ne 0 ]
+then
+	stop_script "chapter8/8.57-gawk.sh"
+fi
+