export CFLAGS="-march=i486 -mtune=i686 -Os -pipe"
export CXXFLAGS="-march=i486 -mtune=i686 -Os -pipe -fno-exceptions -fno-rtti"

acpid-2.0.0
------------
edit Makefile

OPT = -Os
BINDIR = $(INSTPREFIX)/usr/local/bin
SBINDIR = $(INSTPREFIX)/usr/local/sbin
MAN8DIR = $(INSTPREFIX)/usr/local/share/man/man8

CFLAGS = -W -Wall -Wundef -Wshadow -D_GNU_SOURCE -fno-strict-aliasing -march=i486 -mtune=i686 -Os -pipe $(DEFS)

edit acpid.h

#define ACPID_CONFDIR		"/usr/local/etc/acpi/events"

make
sudo make install