From ee2a290abf16f4fd4736c2f4e17e9cff87f50447 Mon Sep 17 00:00:00 2001
From: Jan Willamowius <jan@willamowius.de>
Date: 周一, 22 4月 2019 01:58:13 +0800
Subject: [PATCH] fix gcc 5.4 warnings

---
 src/tools/license-generator/license-generator.cpp |    2 +-
 1 files changed, 1 insertions(+), 1 deletions(-)

diff --git a/src/tools/license-generator/license-generator.cpp b/src/tools/license-generator/license-generator.cpp
index 3b331ef..954e563 100644
--- a/src/tools/license-generator/license-generator.cpp
+++ b/src/tools/license-generator/license-generator.cpp
@@ -71,7 +71,7 @@
 }
 
 vector<FullLicenseInfo> LicenseGenerator::parseLicenseInfo(
-		po::variables_map vm) {
+		const po::variables_map& vm) {
 	string begin_date = FullLicenseInfo::UNUSED_TIME;
 	string end_date = FullLicenseInfo::UNUSED_TIME;
 	if (vm.count("expire_date")) {

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