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-rw-r--r--src/basic/env-util.h2
1 files changed, 2 insertions, 0 deletions
diff --git a/src/basic/env-util.h b/src/basic/env-util.h
index b927ac7..5f0ac74 100644
--- a/src/basic/env-util.h
+++ b/src/basic/env-util.h
@@ -72,3 +72,5 @@ int setenv_systemd_exec_pid(bool update_only);
int getenv_path_list(const char *name, char ***ret_paths);
int getenv_steal_erase(const char *name, char **ret);
+
+int setenvf(const char *name, bool overwrite, const char *valuef, ...) _printf_(3,4);