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Re: Management C Project Files with Emacs?

From: Hadron
Subject: Re: Management C Project Files with Emacs?
Date: Thu, 29 Mar 2007 02:20:48 +0200
User-agent: Gnus/5.110006 (No Gnus v0.6) Emacs/22.0.91 (gnu/linux)

"Colin S. Miller" <address@hidden> writes:

> Daniel wrote:
>> Hi,
>> If I want to compile a large project like Linux Kernel, I don't know
>> how I can use emacs.
>> 2. Whenever opening a file, it seems that emacs change current
>> directory. So, I cannot simply type "M-x compile RET make". Is there
>> anyway to have emacs to stick on specific directory?
> These easiest way to do this is to change the compile line to
> cd /path/to/src/ && make -f Makefile ALL
> HTH,
> Colin S. Miller

This would be really limiting at a later date. Better to open the
makefile or the c file you are interested in so emacs deafults to the
right directory when you then make.

Here is my compile command:

(defun my-compile ()
  (lambda ()
    (unless (file-exists-p "Makefile")
      (set (make-local-variable 'compile-command)
           ;; emulate make's .c.o implicit pattern rule, but with
           ;; different defaults for the CC, CPPFLAGS, and CFLAGS
           ;; variables:
           ;; $(CC) -c -o $@ $(GTKFLAGS) $(CPPFLAGS) $(CFLAGS) $<
           (let ((file (file-name-nondirectory buffer-file-name)))
             (format "%s -o %s %s %s %s %s"
                     (or (getenv "CC") "gcc")
                     (file-name-sans-extension file)
                     (or (getenv "GTKFLAGS") "")
                     (or (getenv "CPPFLAGS")"-DDEBUG=9")
                     (or (getenv "CFLAGS") "-std=c99 -pedantic -Wall -Werror 
-Wshadow -Wpointer-arith -Wcast-qual -Wcast-align -Wwrite-strings -Wconversion  
-Wstrict-prototypes -Wmissing-prototypes -Wmissing-declarations 
-Wredundant-decls -Wnested-externs -Winline -g")


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