From 9e29287a3c7bc17aa492a59be719974d12009006 Mon Sep 17 00:00:00 2001
From: Steven Fackler <sfackler@gmail.com>
Date: Sun, 24 Jan 2021 13:10:26 -0500
Subject: Treat empty OPENSSL_LIBS as no libraries

---
 openssl-sys/build/main.rs | 8 +++++++-
 1 file changed, 7 insertions(+), 1 deletion(-)

diff --git a/openssl-sys/build/main.rs b/openssl-sys/build/main.rs
index 6fdeda78..df03e01f 100644
--- a/openssl-sys/build/main.rs
+++ b/openssl-sys/build/main.rs
@@ -85,7 +85,13 @@ fn main() {
 
     let libs_env = env("OPENSSL_LIBS");
     let libs = match libs_env.as_ref().and_then(|s| s.to_str()) {
-        Some(ref v) => v.split(':').collect(),
+        Some(ref v) => {
+            if v.is_empty() {
+                vec![]
+            } else {
+                v.split(':').collect()
+            }
+        }
         None => match version {
             Version::Openssl10x if target.contains("windows") => vec!["ssleay32", "libeay32"],
             Version::Openssl11x if target.contains("windows-msvc") => vec!["libssl", "libcrypto"],
-- 
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