Makefile: Export build date as integer

In some cases we would need build date as integer value.
Export U_BOOT_BUILD_DATE as %Y%m%d integer value.

Signed-off-by: Andy Shevchenko <andriy.shevchenko@linux.intel.com>
Reviewed-by: Bin Meng <bmeng.cn@gmail.com>

diff --git a/Makefile b/Makefile
index 3d2b66a91f08a7925b6c0e7f71f488c03128f165..78a5f736874712498a0d50ff83aad1cc829f5c57 100644 (file)
--- a/Makefile
+++ b/Makefile
@@ -1358,6 +1358,7 @@ define filechk_timestamp.h
                        LC_ALL=C $${DATE} -u -d "$${SOURCE_DATE}" +'#define U_BOOT_TIME "%T"'; \
                        LC_ALL=C $${DATE} -u -d "$${SOURCE_DATE}" +'#define U_BOOT_TZ "%z"'; \
                        LC_ALL=C $${DATE} -u -d "$${SOURCE_DATE}" +'#define U_BOOT_DMI_DATE "%m/%d/%Y"'; \
+                       LC_ALL=C $${DATE} -u -d "$${SOURCE_DATE}" +'#define U_BOOT_BUILD_DATE 0x%Y%m%d'; \
                else \
                        return 42; \
                fi; \
@@ -1366,6 +1367,7 @@ define filechk_timestamp.h
                LC_ALL=C date +'#define U_BOOT_TIME "%T"'; \
                LC_ALL=C date +'#define U_BOOT_TZ "%z"'; \
                LC_ALL=C date +'#define U_BOOT_DMI_DATE "%m/%d/%Y"'; \
+               LC_ALL=C date +'#define U_BOOT_BUILD_DATE 0x%Y%m%d'; \
        fi)
 endef