TD1/exo2/Makefile

   1 # define compiler and compiler flag variables
   2 # define a variable for compiler flags (JFLAGS)
   3 # define a variable for the compiler (JC)
   4 # define a variable for the Java Virtual Machine (JVM)
   5
   6 JFLAGS = -g
   7 JC = javac
   8 JVM = java
   9
  10 #
  11 # Clear any default targets for building .class files from .java files; we
  12 # will provide our own target entry to do this in this makefile.
  13 # make has a set of default targets for different suffixes (like .c.o)
  14 # Currently, clearing the default for .java.class is not necessary since
  15 # make does not have a definition for this target, but later versions of
  16 # make may, so it doesn't hurt to make sure that we clear any default
  17 # definitions for these
  18 #
  19
  20 .SUFFIXES: .java .class
  21
  22
  23 #
  24 # Here is our target entry for creating .class files from .java files
  25 # This is a target entry that uses the suffix rule syntax:
  26 #       DSTS:
  27 #               rule
  28 # DSTS (Dependency Suffix     Target Suffix)
  29 # 'TS' is the suffix of the target file, 'DS' is the suffix of the dependency
  30 #  file, and 'rule'  is the rule for building a target
  31 # '$*' is a built-in macro that gets the basename of the current target
  32 # Remember that there must be a < tab > before the command line ('rule')
  33 #
  34
  35 .java.class:
  36         $(JC) $(JFLAGS) $*.java
  37
  38
  39 #
  40 # CLASSES is a macro consisting of N words (one for each java source file)
  41 # When a single line is too long, use \<return> to split lines that then will be
  42 # considered as a single line. For example:
  43 # NAME = Camilo \
  44          Juan
  45 # is understood as
  46 # NAME = Camilo        Juan
  47
  48 CLASSES = \
  49                 ThreadJob.java \
  50                 Main.java
  51
  52 #
  53 # MAIN is a variable with the name of the file containing the main method
  54 #
  55
  56 MAIN = Main
  57
  58 #
  59 # the default make target entry
  60 # for this example it is the target classes
  61
  62 default: classes
  63
  64
  65 # Next line is a target dependency line
  66 # This target entry uses Suffix Replacement within a macro:
  67 # $(macroname:string1=string2)
  68 # In the words in the macro named 'macroname' replace 'string1' with 'string2'
  69 # Below we are replacing the suffix .java of all words in the macro CLASSES
  70 # with the .class suffix
  71 #
  72
  73 classes: $(CLASSES:.java=.class)
  74
  75
  76 # Next two lines contain a target for running the program
  77 # Remember the tab in the second line.
  78 # $(JMV) y $(MAIN) are replaced by their values
  79
  80 run: $(MAIN).class
  81         $(JVM) $(MAIN)
  82
  83 # this line is to remove all unneeded files from
  84 # the directory when we are finished executing(saves space)
  85 # and "cleans up" the directory of unneeded .class files
  86 # RM is a predefined macro in make (RM = rm -f)
  87 #
  88
  89 clean:
  90         $(RM) *.class