From dd784dde7290b3c8c2fda4bb34b60cd20bb75a91 Mon Sep 17 00:00:00 2001 From: Rolf Eike Beer Date: Wed, 15 Aug 2012 19:28:50 +0200 Subject: [PATCH] FindX11: avoid calling list(REMOVE_DUPLICATES) on an empty list --- Modules/FindX11.cmake | 4 +++- 1 file changed, 3 insertions(+), 1 deletion(-) diff --git a/Modules/FindX11.cmake b/Modules/FindX11.cmake index 01ba478ad..e12dc0a29 100644 --- a/Modules/FindX11.cmake +++ b/Modules/FindX11.cmake @@ -326,7 +326,9 @@ if (UNIX) # Most of the X11 headers will be in the same directories, avoid # creating a huge list of duplicates. - list(REMOVE_DUPLICATES X11_INCLUDE_DIR) + if (X11_INCLUDE_DIR) + list(REMOVE_DUPLICATES X11_INCLUDE_DIR) + endif () # Deprecated variable for backwards compatibility with CMake 1.4 if (X11_X11_INCLUDE_PATH AND X11_LIBRARIES)