Building APCUPSD with Universal Binary support on Mac OS X

- Install latest Apple DevTools
- Be sure to select the MacOSX10.4u (10.4 Universal) SDK when installing
- Build dependent libraries (libusb) with UB support (see below)
- Build APCUPSD

libusb:
 Use this configure line:
 
   env CFLAGS="-isysroot /Developer/SDKs/MacOSX10.4u.sdk -arch i386 -arch ppc" \
       LDFLAGS="-arch i386 -arch ppc" \
       CXXFLAGS="-isysroot /Developer/SDKs/MacOSX10.4u.sdk -arch i386 -arch ppc" \
       ./configure --disable-dependency-tracking --disable-shared
     

apcupsd:
 Use this configure line (you can customize the --enable-xxx stuff):
 
   env LD="g++ -isysroot /Developer/SDKs/MacOSX10.4u.sdk -arch i386 -arch ppc" \
       CFLAGS="-isysroot /Developer/SDKs/MacOSX10.4u.sdk -arch i386 -arch ppc" \
       ./configure --enable-usb --enable-snmp --enable-powerflute --enable-cgi