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Re: Corrections to Sources

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ricortes <ricortes@earthlink.net> wrote:
> When I took a C programming class it was back in the 80s. Honestly
> looking at the make files in all their derivations I think they are
> more sophisticated and more complex then anything C used to be.
> Sheesh! I am trying to get back up to speed with the Cybiko SDK and
> think I need to take a class in 'make file programming.' I had the
> same gripe when working with cc65!

I'm a VERY naiive "Make" user, but about 12+ years ago I got a copy
of "Managing Projects with Make" by O'Reilly.  Was pretty useful.
My naiive use is basically:

--- begin ---

# Var. for where to install my app
PREFIX=/usr/local

# ... and its data
DATA_PREFIX=($PREFIX)/share/my_app

# Flags to send C compiler.  Including a hard-coded (#define) value
# that'll tell the app where to find its data.  -Wall turns on 'all' warnings.

CFLAGS=-Wall -DPREFIX="$(DATA_PREFIX)"


# Default make target: build the app
all:	my_executable

# Target for installing app and its data
install:
	cp my_executable $(PREFIX)/bin/
	cp -r data/ $(DATA_PREFIX)/

# Link the objects into the final executable
my_executable:	my_app.o some_other_funcs.o
	$(CC) ($LDFLAGS) my_app.o some_other_funcs.o -o my_executable

# Create my main object
my_app.o:	my_app.c some_other_funcs.h
	# Make's default rule is sufficient; it'll come out as:
	# $(CC) my_app.c $(CFLAGS) -o my_app.o

# Create object for some other functions
some_other_funcs.o:	some_other_funcs.c some_other_funcs.h
	# Ditto

--- end ---


Or, yknow, something like that. :)  There's some insanely clever stuff
you can get Make systems to do, but 99% of the time I just want it to handle
dependencies and take care of some variables.

For example, in the above case, on Linux a:

  $ sudo make install

would install it into /usr/local/.  But I could easily install it in the
non-local place:

  $ make PREFIX=/usr
  $ sudo make install PREFIX=/usr

or, like back when I was on a shared Unix (Solaris and SunOS) box in
college, I could tell it I want things to run from somewhere in my homedir.
(Notice I don't need to have root privileges -- no "sudo")

  $ make PREFIX=/home/kendrick/opt
  $ make install PREFIX=/home/kendrick/opt


I'm rambling. :)

-- 
-bill!
Sent from my computer

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Corrections to Sources ricortes <ricortes@earthlink.net> - 2011-09-22 12:47 -0700
  Re: Corrections to Sources bill@newbreedsoftware.com (Bill Kendrick) - 2011-09-22 23:07 +0000
    Re: Corrections to Sources ricortes <ricortes@earthlink.net> - 2011-09-22 21:11 -0700

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