include ex9_43_2.cpp in the makefile ,change the comment in GNU_makef…

…ile_template and add .phony in makefile

GNU_makefile_template

@@ -1,8 +1,7 @@
 #g++ compiler: options
 
-# -std=c++0x enables ISO C++ 11 standard
-# -I.. pulls in the Version_test.h file for conditional compilation
-#      of code the uses features that might not yet be implemented
+# -std=c++11 enables ISO C++ 11 standard
+# use -pedantic -Wall flag when compiling advised by author! 
 CC = g++
 CCFLAGS = -pedantic -Wall -std=c++11 -I .
 
@@ -14,11 +13,16 @@ LOCFLAGS = -I ..
 
 ####### To compile without using a makefile
 # To compile an object file from a source file you could execute
-# g++ -std=c++0x -c filename.cc # produces filename.obj
+# g++ -pedantic -Wall -std=c++11 -I . -c filename.cpp -o filename.o
+# g++ -pedantic -Wall -std=c++11 -I . -c factMain.cc -o factMain.o
+# g++ -pedantic -Wall -std=c++11 -I . -c fact.cc -o fact.o
+
 # To compile an executable file from an object file, you would execute
-# g++ -std=c++0x filename.o      # produces filename.exe
+# g++ -pedantic -Wall -std=c++11 -I . filename.o -o filename
+# g++ -pedantic -Wall -std=c++11 -I . -o factMain factMain.o fact.o
+
 # To compile an executable file from a source file, you would execute
-# g++ -std=c++0x filename.cc    # produces filename.exe
+# g++ -pedantic -Wall -std=c++11 -I . -o factMain factMain.cpp fact.cpp
 #######
 
 # each subdirectory contains a Makefile that lists the executable
@@ -29,7 +33,7 @@ LOCFLAGS = -I ..
 # to build each .exe file listed in that subdirectory's makefile
 all: $(OBJECTS) 
 
-# rule that says how to make a .o object file from a .cc source file
+# rule that says how to make a .o object file from a .cc/.cpp source file
 # for a given source file in a given directory you could compile it
 # into an object file by executing "make filename.o"
 
@@ -45,16 +49,18 @@ all: $(OBJECTS)
 %.o: %.cpp 
 	$(CC) $(CCFLAGS) $(LOCFLAGS) -c $< -o $@
 
-# rule that says how to make a .exe executable file from a .o object file
+# rule that says how to make an executable file from the object file
+# for a given object file in a given directory you could compile it
+# into an executable file by executing "make filename"
 $(OBJECTS): % : %.o 
 	$(CC) $(CCFLAGS) $(LOCFLAGS) $< -o $@
 
-# target to clean up the object files and any core files
-# executing "make clean" in a subdirectory will remove all
-# files named core or any file ending in .obj, or .stackdump
+# target to clean up the object files
+# executing "make clean" in a subdirectory will 
+# remove any file that is ending in .o
 clean:
 	rm -rf *.o
 
-# target to remove executable files as well as object and core files
+# target to remove executable files as well as object files
 clobber: clean
 	rm -rf $(OBJECTS) $(OTHOBJS)

ch09/makefile

@@ -1,8 +1,9 @@
 #cutable files for this directory
 OBJECTS = ex9_13 ex9_14 ex9_15 ex9_16 ex9_18 ex9_19 ex9_20 ex9_22 ex9_24 \
 	ex9_26 ex9_27 ex9_31_1 ex9_31_2 ex9_32 ex9_33 ex9_34 ex9_38 \
-	ex9_41 ex9_43 ex9_44 ex9_45 ex9_46 ex9_47_1 ex9_47_2 ex9_49 \
+	ex9_41 ex9_43_2 ex9_44 ex9_45 ex9_46 ex9_47_1 ex9_47_2 ex9_49 \
 	ex9_50 	ex9_51 ex9_52
+	# ex9_43_1.cpp can be compiled by clang or vs2012+
 all:$(OBJECTS)
 
 # tells make to use the file "../GNU_makefile_template", which

makefile

@@ -1,3 +1,6 @@
+.PHONY : all clean clobber
+
+# automake compile all the files in all subdirectories
 all:  
 	cd ch01; make  all
 	cd ch02; make  all
@@ -18,6 +21,7 @@ all:
 	cd ch17; make  all
 	cd ch18; make  all
 
+# automake remvoe the object file in all subdirectories
 clean: 
 	cd ch01; make  clean
 	cd ch02; make  clean
@@ -38,6 +42,7 @@ clean:
 	cd ch17; make  clean
 	cd ch18; make  clean
 
+# automake remove the object and executable files in all subdirectories
 clobber: 
 	cd ch01; make  clobber
 	cd ch02; make  clobber