From 8969613a5a0810b761371613cd7563161a407a86 Mon Sep 17 00:00:00 2001
From: tamasmeszaros <meszaros.q@gmail.com>
Date: Thu, 7 May 2020 12:46:37 +0200
Subject: [PATCH] Fix cmake error on unixes

---
 deps/CMakeLists.txt | 6 ++++--
 1 file changed, 4 insertions(+), 2 deletions(-)

diff --git a/deps/CMakeLists.txt b/deps/CMakeLists.txt
index 06ab0fa652..74bf6eb53e 100644
--- a/deps/CMakeLists.txt
+++ b/deps/CMakeLists.txt
@@ -152,8 +152,10 @@ include(MPFR/MPFR.cmake)
 include(CGAL/CGAL.cmake)
 include(wxWidgets/wxWidgets.cmake)
 
-add_dependencies(dep_blosc ${ZLIB_PKG})
-add_dependencies(dep_openexr ${ZLIB_PKG})
+if (ZLIB_PKG)
+    add_dependencies(dep_blosc ${ZLIB_PKG})
+    add_dependencies(dep_openexr ${ZLIB_PKG})
+endif ()
 
 if (MSVC)