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Newbie Makefile question

Newbie Makefile question

Newbie Makefile question

I am trying to write a makefile for a school project.  

When I type:
g++ -o simulator simulator.cpp

I get the output:

Which is what I want.  In my makefile I've typed:

# The target
simulator : simulator.cpp
    g++ -o simulator simulator.cpp
# To generate the class files
simulator.o : simulator.cpp
    g++ -c simulator.cpp
# clean out the dross
    rm simulator.o

But it doesn't work and I've no idea how to make it work I've searched forums and google and can't find out what's wrong.  

Currently I'm getting the error:
'ake: Fatal error: Don't know how to make target `simulator.cpp

Any help would be greatly appreciated.

RE: Newbie Makefile question

1) makefiles are fussy - they need tabs and not spaces.  The syntax is

itemreqd: dependency
<tab>how to do it
<blank line>

2) You don't need the rule to make the class file

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