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Top Forums Programming Help me understand this Makefile Post 302301825 by MaestroRage on Saturday 28th of March 2009 02:09:35 PM
Old 03-28-2009
Java Help me understand this Makefile

Code:
PROGOBJS=lab10.o face.o
all:	lab10 clean
lab10:	$(PROGOBJS)
	gcc -o lab10 $(PROGOBJS)
lab10.o:	lab10.c face.h
	gcc -c lab10.c 
face.o:	face.c 
	gcc -c face.c
very-clean:	clean
	rm *.*~ lab10
clean:	
	rm *.o

I need a bit of help understanding what's going on back here. What does that first line mean? I read that when you use all, it was like the holy grail command, that should cover everything, but at the same time it seems this makefile is making a file called PROGOBJS? And what does the $(PROGOBJS) do and mean?

The reason is fairly easy, but this PROGOBJS business has me stumped :c. Thanks for any help in advance!
 

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face(1) 							   User Commands							   face(1)

NAME
face - executable for the Framed Access Command Environment Interface SYNOPSIS
face [-i init_file] [-c command_file] [-a alias_file] [filename...] DESCRIPTION
The Framed Access Command Environment Interface (FACE) presents your files and file folders on the screen through a system of menus and forms if you are properly set up as a FACE user. filename must follow the naming convention Menu.xxx for a menu, Form.xxx for a form, and Text.xxx for a text file, where xxx is any string that conforms to the UNIX system file naming conventions. The Form and Menu Language Interpreter (FMLI) descriptor lifetime will be ignored for all frames opened by argument to face. These frames have a lifetime of immortal by default. If filename is not specified on the command line, the FACE Menu will be opened along with those objects specified by the LOGINWIN environment variables. These variables are found in the user's .environ file. OPTIONS
The following options are supported: -a alias_file Alias file -c command_file Command file -i init_file Initial file OPERANDS
The following operand is supported: filename The full pathname of the file describing the object to be opened initially. EXIT STATUS
The face command will return a non-zero exit value if the user is not properly set up as a FACE user. FILES
$HOME/pref/.environ ATTRIBUTES
See attributes(5) for descriptions of the following attributes: +-----------------------------+-----------------------------+ | ATTRIBUTE TYPE | ATTRIBUTE VALUE | +-----------------------------+-----------------------------+ |Availability |SUNWfac | +-----------------------------+-----------------------------+ SEE ALSO
env(1), attributes(5) SunOS 5.10 5 Jul 1990 face(1)
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