From 1539d7233b5b32f9a6abb6812565935e2838f9ac Mon Sep 17 00:00:00 2001
From: Allen Winter <allen.winter@kdab.com>
Date: Wed, 14 Jul 2021 16:00:15 -0400
Subject: [PATCH] make/ECMGenerateHeaders.cmake - avoid uninit value

see upstream MR at:
https://invent.kde.org/frameworks/extra-cmake-modules/-/merge_requests/161
---
 cmake/ECM/modules/ECMGenerateHeaders.cmake | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/cmake/ECM/modules/ECMGenerateHeaders.cmake b/cmake/ECM/modules/ECMGenerateHeaders.cmake
index c41d1539..4da0f379 100644
--- a/cmake/ECM/modules/ECMGenerateHeaders.cmake
+++ b/cmake/ECM/modules/ECMGenerateHeaders.cmake
@@ -217,7 +217,7 @@ function(ECM_GENERATE_HEADERS camelcase_forwarding_headers_var)
     endif()
 
     set(${camelcase_forwarding_headers_var} ${${camelcase_forwarding_headers_var}} PARENT_SCOPE)
-    if (NOT EGH_REQUIRED_HEADERS STREQUAL "")
+    if (EGH_REQUIRED_HEADERS)
         set(${EGH_REQUIRED_HEADERS} ${${EGH_REQUIRED_HEADERS}} ${_REQUIRED_HEADERS} PARENT_SCOPE)
     endif ()
 endfunction()