diff --git a/LFS/master.sh b/LFS/master.sh
index 43fbe70..08ec609 100644
--- a/LFS/master.sh
+++ b/LFS/master.sh
@@ -225,7 +225,10 @@ chapter6_Makefiles() {
 # chapter 6. Note that this Makefile_target business is not really needed here
 # but we do it to have a similar structure to chapter 5 (we may merge all
 # those functions at some point).
-  Makefile_target=runasroot
+  case "$N" in
+     -build*) Makefile_target=chapter6   ;;
+           *) Makefile_target=runasroot  ;;
+  esac
 
 # Start loop
   for file in chapter06$N/* ; do
@@ -317,8 +320,13 @@ chapter6_Makefiles() {
     # Keep the script file name for Makefile dependencies.
     PREV=${this_script}
     # Set system_build envar for iteration targets
-    system_build=$chapter6
+    if [ -z "$N" ]; then
+      system_build="$system_build $this_script"
+    fi
   done # end for file in chapter06/*
+  if [ -n "$N" ]; then
+    system_build="$chapter6"
+  fi
 }
 
 #----------------------------#
diff --git a/common/libs/func_compare.sh b/common/libs/func_compare.sh
index 4f644c0..f28ccb3 100644
--- a/common/libs/func_compare.sh
+++ b/common/libs/func_compare.sh
@@ -96,7 +96,7 @@ wrt_logs() {                       #
 	  for file in \`ls .\` ; do \\
 	    mv -f \$\$file \`echo \$\$file | sed -e 's,-$build,,'\` ; \\
 	  done ; \\
-	fi ;
+	fi
 	@cd /\$(SCRIPT_ROOT)
 	@if [ -d test-logs ] ; then \\
 	  cd test-logs && \\
diff --git a/extras/do_ica_prep b/extras/do_ica_prep
index 1bbfaba..37d76f8 100755
--- a/extras/do_ica_prep
+++ b/extras/do_ica_prep
@@ -43,9 +43,9 @@ if [ ! -f "$CMP_DIR/icaprep" ]; then
   # hackery to allow easy diffing. Essentially, replace each
   # archive with a dir of the same name and extract the object
   # files from the archive into this dir. Despite their names,
-  # libieee.a & libmcheck.a are not actual ar archives.
+  # libm.a & libmcheck.a are not actual ar archives.
   echo -n "Extracting object files from \".a\" files in ${CMP_DIR}... "
-  L=$(find $CMP_DIR -name '*.a' ! -name 'libieee.a' ! -name 'libmcheck.a')
+  L=$(find $CMP_DIR -name '*.a' ! -name 'libm.a' ! -name 'libmcheck.a')
   for F in $L; do
     mv $F ${F}.XX
     mkdir $F