From 0058dd1099e9f9032535e00a215ca513d8ad4a23 Mon Sep 17 00:00:00 2001
From: =?UTF-8?q?Luis=20D=C3=ADaz=20M=C3=A1s?= <piponazo@gmail.com>
Date: Wed, 17 Jul 2019 22:34:15 +0200
Subject: [PATCH] Use compile definitions only if they are available

---
 unitTests/CMakeLists.txt | 10 +++++-----
 1 file changed, 5 insertions(+), 5 deletions(-)

diff --git a/unitTests/CMakeLists.txt b/unitTests/CMakeLists.txt
index 215118c9..6b73d81d 100644
--- a/unitTests/CMakeLists.txt
+++ b/unitTests/CMakeLists.txt
@@ -34,11 +34,11 @@ add_executable(unit_tests mainTestRunner.cpp
     ${unit_tests_exiv2lib_SOURCES}
 )
 
-target_compile_definitions(unit_tests
-    PRIVATE
-        exiv2lib_STATIC
-        ${exiv2lib_COMPILE_DEFINITIONS}
-)
+target_compile_definitions(unit_tests PRIVATE exiv2lib_STATIC)
+
+if (exiv2lib_COMPILE_DEFINITIONS)
+    target_compile_definitions(unit_tests PRIVATE ${exiv2lib_COMPILE_DEFINITIONS})
+endif ()
 
 target_include_directories(unit_tests
     PRIVATE