diff options
Diffstat (limited to 'Modules/FindX11.cmake')
| -rw-r--r-- | Modules/FindX11.cmake | 4 |
1 files changed, 3 insertions, 1 deletions
diff --git a/Modules/FindX11.cmake b/Modules/FindX11.cmake index 01ba478..e12dc0a 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) |