commit 42ffa51fd46bc6fd4bf2c244f00a80df31d01596
author Vagrant Cascadian <vagrant@debian.org> Sun Jun 12 06:07:07 2016 -0700
committer Tom Rini <trini@konsulko.com> Fri Jun 24 17:23:10 2016 -0400
tree adde6f66f3b5da99927bb36156bdbe348840d994
parent 1e23737df8c3887afd45b3c9842827df168d915b

Use C locale when setting CC_VERSION_STRING and LD_VERSION_STRING.

The output reported may be locale-dependent, which results in
unreproducible builds.

  $ LANG=C ld --version | head -n 1
    GNU ld (GNU Binutils for Debian) 2.26

  $ LANG=it_CH.UTF-8 ld --version | head -n 1
    ld di GNU (GNU Binutils for Debian) 2.26

Forcing LC_ALL=C ensures the output is consistant regardless of the
build environment.

Thanks to HW42 for debugging the issue:

  https://lists.alioth.debian.org/pipermail/reproducible-builds/Week-of-Mon-20160606/005722.html

For more information about reproducible builds:

  https://reproducible-builds.org/

Signed-off-by: Vagrant Cascadian <vagrant@debian.org>
Reviewed-by: Tom Rini <trini@konsulko.com>

Makefile

diff --git a/Makefile b/Makefile
index d0e7a8a..256d4ff 100644
--- a/Makefile
+++ b/Makefile
@@ -1269,8 +1269,8 @@
 define filechk_version.h
 	(echo \#define PLAIN_VERSION \"$(UBOOTRELEASE)\"; \
 	echo \#define U_BOOT_VERSION \"U-Boot \" PLAIN_VERSION; \
-	echo \#define CC_VERSION_STRING \"$$($(CC) --version | head -n 1)\"; \
-	echo \#define LD_VERSION_STRING \"$$($(LD) --version | head -n 1)\"; )
+	echo \#define CC_VERSION_STRING \"$$(LC_ALL=C $(CC) --version | head -n 1)\"; \
+	echo \#define LD_VERSION_STRING \"$$(LC_ALL=C $(LD) --version | head -n 1)\"; )
 endef
 
 # The SOURCE_DATE_EPOCH mechanism requires a date that behaves like GNU date.