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-rw-r--r--variable.h1
1 files changed, 1 insertions, 0 deletions
diff --git a/variable.h b/variable.h
index 68350b9..c9e6c2f 100644
--- a/variable.h
+++ b/variable.h
@@ -46,6 +46,7 @@ struct variable
{
v_export, /* Export this variable. */
v_noexport, /* Don't export this variable. */
+ v_ifset, /* Export it if it has a non-default value. */
v_default /* Decide in target_environment. */
} export ENUM_BITFIELD (2);
};