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Diffstat (limited to 'src/include/pc80')
-rw-r--r--src/include/pc80/mc146818rtc.h2
1 files changed, 1 insertions, 1 deletions
diff --git a/src/include/pc80/mc146818rtc.h b/src/include/pc80/mc146818rtc.h
index 5d7497df56..5b71c3d1e2 100644
--- a/src/include/pc80/mc146818rtc.h
+++ b/src/include/pc80/mc146818rtc.h
@@ -198,7 +198,7 @@ unsigned int read_option_lowlevel(unsigned int start, unsigned int size,
# include "option_table.h"
# define CMOS_POST_OFFSET (CMOS_VSTART_cmos_post_offset >> 3)
#else
-# if defined(CONFIG_CMOS_POST_OFFSET) && CONFIG_CMOS_POST_OFFSET
+# if (CONFIG_CMOS_POST_OFFSET != 0)
# define CMOS_POST_OFFSET CONFIG_CMOS_POST_OFFSET
# else
# error "Must configure CONFIG_CMOS_POST_OFFSET"