root/lm-sensors/trunk/Makefile @ 386

Revision 386, 9.1 KB (checked in by frodo, 16 years ago)

Removed old reference to prog/doc/Module.mk from master Makefile.

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1#  Makefile - Makefile for a Linux module for reading sensor data.
2#  Copyright (c) 1998, 1999  Frodo Looijaard <frodol@dds.nl>
3#
4#  This program is free software; you can redistribute it and/or modify
5#  it under the terms of the GNU General Public License as published by
6#  the Free Software Foundation; either version 2 of the License, or
7#  (at your option) any later version.
8#
9#  This program is distributed in the hope that it will be useful,
10#  but WITHOUT ANY WARRANTY; without even the implied warranty of
11#  MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
12#  GNU General Public License for more details.
13#
14#  You should have received a copy of the GNU General Public License
15#  along with this program; if not, write to the Free Software
16#  Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA.
17
18# Everything you may want to change is in the top of this file. Usually, you
19# can just use the defaults, fortunately.
20
21# You need a full complement of GNU utilities to run this Makefile succesfully;
22# most notably, you need bash, GNU make, flex and bison.
23
24# The location of your kernel headers (which should be the linux and asm
25# subdirectories). For most people, the below works perfectly. If you use
26# Debian, you may want to change this to something like /usr/src/linux/include.
27LINUX_HEADERS=/usr/include
28
29# The location of linux itself. This is only used to determine whether you
30# use a SMP kernel in the magic invocation just below.
31LINUX=/usr/src/linux
32
33# Uncomment the third line on SMP systems if the magic invocation fails. It
34# is a bit complicated because SMP configuration changed around kernel 2.1.130
35SMP := $(shell if grep -q '^SMP[[:space:]]*=' $(LINUX)/Makefile || \
36                  grep -q '^[[:space:]]*\#define[[:space:]]*CONFIG_SMP[[:space:]]*1' $(LINUX_HEADERS)/linux/autoconf.h ; \
37               then echo 1; else echo 0; fi)
38#SMP := 0
39#SMP := 1
40
41# Uncomment the second or third line if the magic invocation fails.
42# We need to know whether CONFIG_MODVERSIONS is defined.
43MODVER := $(shell if cat $(LINUX_HEADERS)/linux/config.h $(LINUX_HEADERS)/linux/autoconf.h 2>/dev/null | grep -q '^[[:space:]]*\#define[[:space:]]*CONFIG_MODVERSIONS[[:space:]]*1'; then echo 1; else echo 0; fi)
44#MODVER := 0
45#MODVER := 1
46
47# Uncomment the second line if you do not want to compile the included
48# i2c modules. WARNING! If the i2c module version does not match the
49# smbus/sensor module versions, you will get into severe problems.
50# If you want to use a self-compiled version of the i2c modules, make
51# sure <linux/i2c.h> contains the *correct* i2c header file! The stock
52# Linux 2.1.xxx and 2.2.x modules are *not* good enough; you really need
53# Simon Vogl's version!
54I2C := 1
55#I2C := 0
56
57# Uncomment the second line if you are a developer. This will enable many
58# additional warnings at compile-time
59WARN := 0
60#WARN := 1
61
62# Uncomment the second line if you want to get (loads of) debug information.
63# Not recommended, unless you are actually debugging the code
64DEBUG := 0
65#DEBUG := 1
66
67# This is the prefix that will be used for almost all directories below.
68PREFIX := /usr/local
69
70# This is the directory into which the modules will be installed.
71MODDIR := /lib/modules/extra/misc
72
73# This is the directory where sensors.conf will be installed, if no other
74# configuration file is found
75ETCDIR := /etc
76
77# You should not need to change this. It is the directory into which the
78# library files (both static and shared) will be installed.
79LIBDIR := $(PREFIX)/lib
80
81# You should not need to change this. It is the directory into which the
82# executable program files will be installed. BINDIR for programs that are
83# also useful for normal users, SBINDIR for programs that can only be run
84# by the superuser.
85# Note that not all programs in this package are really installed;
86# some are just examples. You can always install them by hand, of
87# course.
88BINDIR := $(PREFIX)/bin
89SBINDIR := $(PREFIX)/sbin
90
91# You should not need to change this. It is the basic directory into which
92# include files will be installed. The actual directory will be
93# $(INCLUDEDIR)/linux for system include files, and $(INCLUDEDIR)/sensors
94# for library include files. If PREFIX equals the default /usr/local/bin,
95# you will be able to use '#include <linux/sensors.h>' regardless of the
96# current kernel selected.
97INCLUDEDIR := $(PREFIX)/include
98SYSINCLUDEDIR := $(INCLUDEDIR)/linux
99LIBINCLUDEDIR := $(INCLUDEDIR)/sensors
100
101# You should not need to change this. It is the base directory under which the
102# manual pages will be installed.
103MANDIR := $(PREFIX)/man
104
105# You should not need to change this. It defines the manual owner and group
106# as which manual pages are installed.
107MANOWN := root
108MANGRP := root
109
110# If your /bin/sh is not bash, change the below definition so that make can
111# find bash.
112# SHELL=/usr/bin/bash
113
114##################################################
115# Below this, nothing should need to be changed. #
116##################################################
117
118# Note that this is a monolithic Makefile; it calls no sub-Makefiles,
119# but instead, it compiles everything right from here. Yes, there are
120# some distinct advantages to this; see the following paper for more info:
121#   http://www.tip.net.au/~millerp/rmch/recu-make-cons-harm.html
122# Note that is still uses Makefile fragments in sub-directories; these
123# are called 'Module.mk'.
124
125# Within each Module.mk, rules and dependencies can be added to targets
126# all, install and clean. Use double colons instead of single ones
127# to do this.
128
129# The subdirectories we need to build things in
130SRCDIRS := kernel kernel/busses kernel/chips kernel/include lib prog/sensors \
131           prog/dump prog/detect etc
132ifeq ($(I2C),1)
133SRCDIRS += i2c i2c/detect i2c/drivers i2c/eeprom
134endif
135
136# Some often-used commands with default options
137MKDIR := mkdir -p
138RM := rm -f
139CC := gcc
140BISON := bison
141FLEX := flex
142AR := ar
143INSTALL := install
144LN := ln -sfn
145GREP := grep
146
147# Determine the default compiler flags
148# MODCFLAGS is to create in-kernel object files (modules); PROGFLAGS is to
149# create non-kernel object files (which are linked into executables).
150# ARCFLAGS are used to create archive object files (static libraries), and
151# LIBCFLAGS are for shared library objects.
152CFLAGS := -I. -Ii2c -Ikernel/include -I$(LINUX_HEADERS) -O2 -DLM_SENSORS
153
154ifeq ($(DEBUG),1)
155CFLAGS += -DDEBUG
156endif
157
158ifeq ($(WARN),1)
159CFLAGS += -Wall -Wstrict-prototypes -Wshadow -Wpointer-arith -Wcast-qual \
160          -Wcast-align -Wwrite-strings -Wnested-externs -Winline
161endif
162
163ifeq ($(I2C),1)
164CFLAGS += -DI2C
165endif
166
167MODCFLAGS := $(CFLAGS) -D__KERNEL__ -DMODULE -fomit-frame-pointer
168PROGCFLAGS := $(CFLAGS)
169ARCFLAGS := $(CFLAGS)
170LIBCFLAGS := $(CFLAGS) -fpic
171
172ifeq ($(SMP),1)
173MODCFLAGS += -D__SMP__
174endif
175
176ifeq ($(MODVER),1)
177MODCFLAGS += -DMODVERSIONS -include /usr/include/linux/modversions.h
178endif
179
180.PHONY: all clean install version package dep
181
182# Make all the default rule
183all::
184
185# Include all makefiles for sub-modules
186INCLUDEFILES := 
187include $(patsubst %,%/Module.mk,$(SRCDIRS))
188ifneq ($(MAKECMDGOALS),clean)
189include $(INCLUDEFILES)
190endif
191
192# Making the dependency files - done automatically!
193dep :
194
195all ::
196
197install :: all
198
199clean::
200        $(RM) lm_sensors-*
201
202# This is tricky, but it works like a charm. It needs lots of utilities
203# though: cut, find, gzip, ln, tail and tar.
204package: version clean
205        lmversion=`tail -1 version.h|cut -f 2 -d \"`; \
206        lmpackage=lm_sensors-$$lmversion; \
207        ln -s . $$lmpackage;  \
208        find $$lmpackage/ -type f | grep -v ^$$lmpackage/$$lmpackage$$ | \
209                                    grep -v ^$$lmpackage/$$lmpackage.tar$$ | \
210                                    grep -v ^$$lmpackage/$$ | \
211                                    grep -v CVS | \
212                                    grep -v ^$$lmpackage/.# | \
213                                    tar rvf $$lmpackage.tar -T -; \
214        gzip -9 $$lmpackage.tar ;\
215        $(RM) $$lmpackage.tar $$lmpackage
216
217version:
218        $(RM) version.h
219        echo '#define LM_DATE "'`date +'%Y%m%d'`\" > version.h
220        echo -n 'Version: '; \
221        echo '#define LM_VERSION "'`read VER; echo $$VER`\" >> version.h
222
223
224# Here, we define all implicit rules we want to use.
225
226.SUFFIXES:
227
228# We need to create dependency files. Tricky. We sed rule puts dir/file.d and
229# dir/file.c # in front of the dependency file rule.
230
231# .o files are used for modules
232%.o: %.c
233        $(CC) $(MODCFLAGS) -c $< -o $@
234
235%.d: %.c
236        $(CC) -M -MG $(MODCFLAGS) $< | \
237        sed -e 's@^\(.*\)\.o:@$*.d $*.o: Makefile '`dirname $*.d`/Module.mk' @' > $@
238
239
240
241# .ro files are used for programs (as opposed to modules)
242%.ro: %.c
243        $(CC) $(PROGCFLAGS) -c $< -o $@
244
245%.rd: %.c
246        $(CC) -M -MG $(PROGCFLAGS) $< | \
247        sed -e 's@^\(.*\)\.o:@$*.rd $*.ro: Makefile '`dirname $*.rd`/Module.mk' @' > $@
248
249
250%: %.ro
251        $(CC) $(EXLDFLAGS) -o $@ $^
252
253
254# .ao files are used for static archives
255%.ao: %.c
256        $(CC) $(ARCFLAGS) -c $< -o $@
257
258%.ad: %.c
259        $(CC) -M -MG $(ARCFLAGS) $< | \
260        sed -e 's@^\(.*\)\.o:@$*.ad $*.ao: Makefile '`dirname $*.ad`/Module.mk' @' > $@
261
262
263# .lo files are used for shared libraries
264%.lo: %.c
265        $(CC) $(LIBCFLAGS) -c $< -o $@
266
267%.ld: %.c
268        $(CC) -M -MG $(LIBCFLAGS) $< | \
269        sed -e 's@^\(.*\)\.o:@$*.ld $*.lo: Makefile '`dirname $*.ld`/Module.mk' @' > $@
270
271
272# Flex and Bison
273%c: %y
274        $(BISON) -p sensors_yy -d $< -o $@
275
276%.c: %.l
277        $(FLEX) -Psensors_yy -t $< > $@
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