lm-sensors/lib/Module.mk

#  Module.mk - Makefile for a Linux module for reading sensor data.
#  Copyright (c) 1998, 1999  Frodo Looijaard <frodol@dds.nl>
#
#  This program is free software; you can redistribute it and/or modify
#  it under the terms of the GNU General Public License as published by
#  the Free Software Foundation; either version 2 of the License, or
#  (at your option) any later version.
#
#  This program is distributed in the hope that it will be useful,
#  but WITHOUT ANY WARRANTY; without even the implied warranty of
#  MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
#  GNU General Public License for more details.
#
#  You should have received a copy of the GNU General Public License
#  along with this program; if not, write to the Free Software
#  Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA.

# Note that MODULE_DIR (the directory in which this file resides) is a
# 'simply expanded variable'. That means that its value is substituted
# verbatim in the rules, until it is redefined. 
MODULE_DIR := lib
LIB_DIR := $(MODULE_DIR)

# The manual dirs and files
LIBMAN3DIR := $(MANDIR)/man3
LIBMAN3FILES := $(MODULE_DIR)/libsensors.3
LIBMAN5DIR := $(MANDIR)/man5
LIBMAN5FILES := $(MODULE_DIR)/sensors.conf.5

# The main and minor version of the library
LIBMAINVER := 1
LIBMINORVER := 4.0
LIBVER := $(LIBMAINVER).$(LIBMINORVER)

# The static lib name, the shared lib name, and the internal ('so') name of
# the shared lib.
LIBSHBASENAME := libsensors.so
LIBSHLIBNAME := libsensors.so.$(LIBVER)
LIBSTLIBNAME := libsensors.a
LIBSHSONAME := libsensors.so.$(LIBMAINVER)

LIBTARGETS := $(MODULE_DIR)/$(LIBSTLIBNAME) $(MODULE_DIR)/$(LIBSHLIBNAME) \
              $(MODULE_DIR)/$(LIBSHSONAME) $(MODULE_DIR)/$(LIBSHBASENAME)

LIBCSOURCES := $(MODULE_DIR)/data.c $(MODULE_DIR)/general.c \
               $(MODULE_DIR)/error.c $(MODULE_DIR)/chips.c \
               $(MODULE_DIR)/proc.c $(MODULE_DIR)/access.c \
               $(MODULE_DIR)/init.c
LIBOTHEROBJECTS := $(MODULE_DIR)/conf-parse.o $(MODULE_DIR)/conf-lex.o
LIBSHOBJECTS := $(LIBCSOURCES:.c=.lo) $(LIBOTHEROBJECTS:.o=.lo)
LIBSTOBJECTS := $(LIBCSOURCES:.c=.ao) $(LIBOTHEROBJECTS:.o=.ao)
LIBEXTRACLEAN := $(MODULE_DIR)/conf-parse.h $(MODULE_DIR)/conf-parse.c \
                 $(MODULE_DIR)/conf-lex.c

LIBHEADERFILES := $(MODULE_DIR)/error.h $(MODULE_DIR)/sensors.h \
                  $(MODULE_DIR)/chips.h

# How to create the shared library
$(MODULE_DIR)/$(LIBSHLIBNAME): $(LIBSHOBJECTS)
	$(CC) -shared -Wl,-soname,$(LIBSHSONAME) -o $@ $^ -lc -lm

$(MODULE_DIR)/$(LIBSHSONAME): $(MODULE_DIR)/$(LIBSHLIBNAME)
	$(RM) $@
	$(LN) $(LIBSHLIBNAME) $@

$(MODULE_DIR)/$(LIBSHBASENAME): $(MODULE_DIR)/$(LIBSHLIBNAME)
	$(RM) $@ 
	$(LN) $(LIBSHLIBNAME) $@

# And the static library
$(MODULE_DIR)/$(LIBSTLIBNAME): $(LIBSTOBJECTS)
	$(RM) $@
	$(AR) rcvs $@ $^

# Depencies for non-C sources
$(MODULE_DIR)/conf-lex.c: $(MODULE_DIR)/conf-lex.l $(MODULE_DIR)/general.h \
                          $(MODULE_DIR)/data.h $(MODULE_DIR)/conf-parse.h
$(MODULE_DIR)/conf-parse.c: $(MODULE_DIR)/conf-parse.y $(MODULE_DIR)/general.h \
                            $(MODULE_DIR)/data.h
$(MODULE_DIR)/conf-parse.h: $(MODULE_DIR)/conf-parse.c

# Include all dependency files
INCLUDEFILES += $(LIBCSOURCES:.c=.ld) $(LIBCSOURCES:.c=.ad)

all-lib: $(LIBTARGETS)
all :: all-lib

# Generate warnings if the install directory isn't in /etc/ld.so.conf
# or if the library wasn't there before (which means ldconfig must be run).
# Don't generate warning about old versions in /usr/lib unless the new version
# won't be picked up, since ld.so looks at the directories in ld.so.conf
# before it looks at /usr/lib.
install-lib: all-lib
	$(MKDIR) $(DESTDIR)$(LIBDIR) $(DESTDIR)$(LIBINCLUDEDIR) $(DESTDIR)$(LIBMAN3DIR) $(DESTDIR)$(LIBMAN5DIR)
	@if [ ! -e "$(DESTDIR)$(LIBDIR)/$(LIBSHSONAME)" ] ; then \
	     echo '******************************************************************************' ;  \
	     echo 'Warning: This is the first installation of the $(LIBSHBASENAME)*' ; \
	     echo '         library files in $(DESTDIR)$(LIBDIR) !!!' ; \
	     echo '         You must run /sbin/ldconfig to update the library cache or' ; \
	     echo '         the userspace tools may fail or have unpredictable results !!!' ; \
	     echo '******************************************************************************' ;  \
	fi
	$(INSTALL) -o root -g root -m 644 $(LIBTARGETS) $(DESTDIR)$(LIBDIR)
	$(LN) $(LIBSHLIBNAME) $(DESTDIR)$(LIBDIR)/$(LIBSHSONAME)
	$(LN) $(LIBSHSONAME) $(DESTDIR)$(LIBDIR)/$(LIBSHBASENAME)
	@if [ "$(DESTDIR)$(LIBDIR)" != "/usr/lib" -a "$(DESTDIR)$(LIBDIR)" != "/lib" ] ; then \
	   grep -q '^$(DESTDIR)$(LIBDIR)$$' /etc/ld.so.conf || \
	   grep -q '^$(DESTDIR)$(LIBDIR)[[:space:]:,=]' /etc/ld.so.conf || \
	   grep -q '[[:space:]:,]$(DESTDIR)$(LIBDIR)$$' /etc/ld.so.conf || \
	   grep -q '[[:space:]:,]$(DESTDIR)$(LIBDIR)[[:space:]:,=]' /etc/ld.so.conf || \
		( echo '******************************************************************************' ;  \
		  echo 'Warning: Library directory $(DESTDIR)$(LIBDIR) not in /etc/ld.so.conf !!!' ;  \
		  echo '         Add it and run /sbin/ldconfig for the userspace tools to work !!!' ; \
		  if [ -e "/usr/lib/$(LIBSHSONAME)" ] ; then \
		     echo '         Even worse, you have old $(LIBSHBASENAME)* library files in /usr/lib !!!' ;  \
		     echo '         These will be used instead which will cause unpredictable results !!!' ; \
		  fi ; \
		  echo '******************************************************************************' ) ;  \
	fi
	$(INSTALL) -o root -g root -m 644 $(LIBHEADERFILES) $(DESTDIR)$(LIBINCLUDEDIR)
	$(INSTALL) -o $(MANOWN) -g $(MANGRP) -m 644 $(LIBMAN3FILES) $(DESTDIR)$(LIBMAN3DIR)
	$(INSTALL) -o $(MANOWN) -g $(MANGRP) -m 644 $(LIBMAN5FILES) $(DESTDIR)$(LIBMAN5DIR)


install :: install-lib

clean-lib:
	$(RM) $(LIB_DIR)/*.ld $(LIB_DIR)/*.ad
	$(RM) $(LIB_DIR)/*.lo $(LIB_DIR)/*.ao
	$(RM) $(LIBTARGETS) $(LIBEXTRACLEAN)
clean :: clean-lib