--- configure.in.bak	2007-10-14 23:49:21.000000000 -0400
+++ configure.in	2007-10-14 23:50:48.000000000 -0400
@@ -61,8 +61,12 @@
 			AC_MSG_ERROR([SMBios library not available. Please install development files for libsmbios.]), [/* dummy */])
 		AC_CHECK_HEADERS([pci/pci.h sys/io.h], ac_macbook=yes,
 			AC_MSG_ERROR([Please install development files for libpci and direct I/O.]), [/* dummy */])
+		AC_CHECK_LIB([pci], [pci_alloc], [], [
+			AC_CHECK_LIB([z], [gzopen], [], [AC_MSG_ERROR([PCI utils library not found, please install pci-utils.], [1])])
+			AC_CHECK_LIB([pci], [pci_fill_info], [], [AC_MSG_ERROR([PCI utils library not found, please install pci-utils.], [1])], [-lz])
+		])
 		PB_OBJECTS+=" driver_backlight_x1600.$OBJEXT driver_backlight_gma950.$OBJEXT module_acpi.$OBJEXT module_imac.$OBJEXT"
-		PB_LIBS+=" -lpci -lsmbios"
+		PB_LIBS+=" -lpci -lz -lsmbios"
 		LCD_FADINGSPEED="448"
 		LCD_AUTOADJMODE="linear"
 		LCD_AUTOADJPARMBAT="0,10,80,30"