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-rw-r--r--shared.c2
1 files changed, 1 insertions, 1 deletions
diff --git a/shared.c b/shared.c
index 75c4b5c..0c8ce3e 100644
--- a/shared.c
+++ b/shared.c
@@ -392,7 +392,7 @@ void cgit_prepare_repo_env(struct cgit_repo * repo)
p = env_vars;
q = p + env_var_count;
for (; p < q; p++)
- if (setenv(p->name, p->value, 1))
+ if (p->value && setenv(p->name, p->value, 1))
fprintf(stderr, warn, p->name, p->value);
}