Groups | Search | Server Info | Keyboard shortcuts | Login | Register [http] [https] [nntp] [nntps]


Groups > comp.os.linux.development.apps > #217

Re: Make file question about the .c.o rule

From Måns Rullgård <mans@mansr.com>
Newsgroups comp.os.linux.development.apps
Subject Re: Make file question about the .c.o rule
Date 2011-07-24 19:12 +0100
Message-ID <yw1x8vrn8s5c.fsf@unicorn.mansr.com> (permalink)
References <993582FjekU1@mid.individual.net>

Show all headers | View raw


General Schvantzkoph <schvantzkoph@yahoo.com> writes:

> How do I use the .c.o rule when the sources are in subdirectories,
>
> for example
>
> foo/src2.c
>
> bar/src2.c
>
> In my Makefile I have 
>
> .c.o: $(HDL_COMMON_INCLUDES) ${HDL_INCLUDES} $(PMACS_INCLUDES)
> 	$(CC) $(CFLAGS) -c $< 
>
> This compiles the sources and puts the .o files in the top directory 
> rather that the subdirectory. The problem is that Make doesn't realize 
> that the .o files exist so every invocation of make builds everything.

Use this command:
	$(CC) $(CFLAGS) -c -o $@ $<

-- 
Måns Rullgård
mans@mansr.com

Back to comp.os.linux.development.apps | Previous | NextPrevious in thread | Next in thread | Find similar


Thread

Make file question about the .c.o rule General Schvantzkoph <schvantzkoph@yahoo.com> - 2011-07-24 18:05 +0000
  Re: Make file question about the .c.o rule Måns Rullgård <mans@mansr.com> - 2011-07-24 19:12 +0100
    Re: Make file question about the .c.o rule General Schvantzkoph <schvantzkoph@yahoo.com> - 2011-07-24 18:23 +0000

csiph-web