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-rw-r--r--xen/include/Makefile2
1 files changed, 1 insertions, 1 deletions
diff --git a/xen/include/Makefile b/xen/include/Makefile
index 64c87f6722..64f72865ae 100644
--- a/xen/include/Makefile
+++ b/xen/include/Makefile
@@ -37,7 +37,7 @@ endif
all: $(headers-y)
compat/%.h: compat/%.i Makefile
- id=_$$(echo $@ | tr '[:lower:]-/.' '[:upper:]___'); \
+ set -e; id=_$$(echo $@ | tr '[:lower:]-/.' '[:upper:]___'); \
echo "#ifndef $$id" >$@.new; \
echo "#define $$id" >>$@.new; \
echo "#include <xen/compat.h>" >>$@.new; \