Change in coreboot[4.8_branch]: util/sconfig: Avoid duplicate symbols in link step

[Patrick Georgi (Code Review)]

Patrick Georgi has uploaded this change for review. ( https://review.coreboot.org/c/coreboot/+/58534 )

Change subject: util/sconfig: Avoid duplicate symbols in link step
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util/sconfig: Avoid duplicate symbols in link step

Recent linkers became more picky about unifying identical symbols, so
avoid struct *device head to appear several times by marking it
"extern".

Follows a change in commit 79e8412665567c, but without carrying all the
other refactorings done there.

Change-Id: Icede0936cc99f1c183c09812bffc3cc9a3993efa
Signed-off-by: Patrick Georgi 
---
M util/sconfig/sconfig.h
1 file changed, 1 insertion(+), 1 deletion(-)

git pull ssh://review.coreboot.org:29418/coreboot refs/changes/34/58534/1

diff --git a/util/sconfig/sconfig.h b/util/sconfig/sconfig.h
index 119d7b5..3ca13b3 100644
--- a/util/sconfig/sconfig.h
+++ b/util/sconfig/sconfig.h
@@ -77,7 +77,7 @@
    struct reg *reg;
 };

-struct device *head;
+extern struct device *head;

struct header;
 struct header {