root/lm-sensors/trunk/kernel/include/Module.mk @ 2189

Revision 2189, 2.0 KB (checked in by mds, 9 years ago)

remove -o and -g args to install

Date: Thu, 18 Dec 2003 22:42:36 +0100
From: Haakon Riiser <haakon.riiser@…>
To: sensors@…
Subject: lm_sensors 2.8.2 / DESTDIR / root

The reason for this email is that I always try to avoid running
Makefiles as root, even during 'make install'. Therefore, I
always use the DESTDIR feature, when it's available. Until today,
I always built i2c and lm_sensors by doing

$ make
$ make -i install DESTDIR=/foo
$ cd /foo && su root && fix permissions/ownership && install

The -i flag to make install is a kludge to avoid having to be root
while installing to the DESTDIR, and it's only required because
the files are installed with "-o root -g root". Using the -i
flag is of course not a good idea, since more fatal errors can
easily fly by undetected.

Today, I upgraded to Linux 2.6.0, and tried a similar install
procedure for lm_sensors, except that the make target is now "user"
and the install target is "user_install". I now noticed that the
DESTDIR variable is not used everywhere in "user_install", so I
couldn't use the -i kludge anymore. Instead, I wrote a patch that
removes the "-o root -g root" arguments to install everywhere, and
I also tried to add DESTDIR to all files/directories installed.
(The patch only applies to lm_sensors, not i2c, since only
lm_sensors is required in Linux 2.6.0.)

There's really no reason to say -o root -g root anyway, since if you
do install directly with make install, you have to be logged in as
root, and then the files will get the right ownership by default.
Much of the point of installing to a temporary DESTDIR is that you
don't have to be root, and that you can prepare the installation
by hand. Fixing the ownership is trivial:

chown -R root.root $DESTDIR

  • Property svn:eol-style set to native
  • Property svn:keywords set to Author Date Id Revision
Line 
1#  Module.mk - 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# Note that MODULE_DIR (the directory in which this file resides) is a
19# 'simply expanded variable'. That means that its value is substituted
20# verbatim in the rules, until it is redefined.
21MODULE_DIR := kernel/include
22KERNELINCLUDEDIR := $(MODULE_DIR)
23KERNELCHIPSDIR := kernel/chips
24
25KERNELINCLUDEFILES := $(MODULE_DIR)/i2c-dev.h $(MODULE_DIR)/sensors.h
26
27$(KERNELINCLUDEDIR)/sensors.h: $(KERNELINCLUDEDIR)/sensors.h.template
28        cat $@.template > $@
29        $(AWK) '/SENSORS SYSCTL START/,/SENSORS SYSCTL END/' $(KERNELCHIPSDIR)/*.c >> $@
30        echo '#endif' >> $@
31
32$(KERNELINCLUDEDIR)/sensors.hd:
33        ( $(GREP) 'SENSORS SYSCTL START' /dev/null $(KERNELCHIPSDIR)/*.c | \
34          $(SED) -e 's/:.*//' -e 's#^#$(KERNELINCLUDEDIR)/sensors.h: #' ) > $@
35
36# Get dependencies of sensors.h
37INCLUDEFILES += $(MODULE_DIR)/sensors.hd
38
39install-all-kernel-include:
40        if [ -n "$(KERNELINCLUDEFILES)" ] ; then \
41          $(MKDIR) $(DESTDIR)$(SYSINCLUDEDIR) ; \
42          $(INSTALL) -m 644 $(KERNELINCLUDEFILES) $(DESTDIR)$(SYSINCLUDEDIR) ; \
43        fi
44
45user_install :: install-all-kernel-include
46
47clean-all-kernel-include:
48        $(RM) $(KERNELINCLUDEDIR)/*.h.install $(KERNELINCLUDEDIR)/sensors.h $(KERNELINCLUDEDIR)/sensors.hd
49
50clean :: clean-all-kernel-include
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