Description: compile warning cleanup - stop compilation of unused 
structure member unless proper symbol is defined

Signed-off-by: Stephen Biggs <yrgrknmxpzlk@gawab.com>

diff -Nurdp -X dontdiff-osdl linux-2.6.11-rc3-mm2-original/drivers/scsi/sym53c8xx_2/sym_glue.c linux-2.6.11-rc3-mm2/drivers/scsi/sym53c8xx_2/sym_glue.c
--- linux-2.6.11-rc3-mm2-original/drivers/scsi/sym53c8xx_2/sym_glue.c	2005-02-12 12:06:25.000000000 +0200
+++ linux-2.6.11-rc3-mm2/drivers/scsi/sym53c8xx_2/sym_glue.c	2005-02-12 17:35:49.000000000 +0200
@@ -1817,7 +1817,9 @@ static int __devinit sym_check_supported
 	struct pci_dev *pdev = device->pdev;
 	u_char revision;
 	unsigned long io_port = device->s.io_port;
+#ifndef SYM_CONF_IOMAPPED
 	unsigned long base = device->s.base;
+#endif
 	int i;
 
 	/*