From ead0fadac34989ed9d58148f4355cee679503550 Mon Sep 17 00:00:00 2001
From: Martchus <martchus@gmx.net>
Date: Sat, 15 Apr 2017 23:33:52 +0200
Subject: [PATCH] Unset version info when not available

---
 cmake/modules/ConfigHeader.cmake | 2 ++
 1 file changed, 2 insertions(+)

diff --git a/cmake/modules/ConfigHeader.cmake b/cmake/modules/ConfigHeader.cmake
index e24ef45..c25e9ba 100644
--- a/cmake/modules/ConfigHeader.cmake
+++ b/cmake/modules/ConfigHeader.cmake
@@ -34,6 +34,8 @@ foreach(LINKAGE IN ITEMS "" "STATIC_")
                 endif()
                 set(DEPENDENCY_VER "${${DEPENDENCY_VARNAME}_VERSION}")
             else()
+                unset(DEPENDENCY_DISPLAY_NAME)
+                unset(DEPENDENCY_VER)
                 # FIXME: provide meta-data for other libs, too
             endif()
             if(DEPENDENCY_VER AND NOT "${DEPENDENCY_VER}" STREQUAL "DEPENDENCY_VER-NOTFOUND")