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-rw-r--r--Modules/FindITK.cmake3
1 files changed, 3 insertions, 0 deletions
diff --git a/Modules/FindITK.cmake b/Modules/FindITK.cmake
index 12d27c6..40c321b 100644
--- a/Modules/FindITK.cmake
+++ b/Modules/FindITK.cmake
@@ -45,6 +45,9 @@ IF(NOT ITK_DIR)
# Look for an installation or build tree.
#
FIND_PATH(ITK_DIR ITKConfig.cmake
+ # Look for an environment variable ITK_DIR.
+ $ENV{ITK_DIR}
+
# Look in places relative to the system executable search path.
${ITK_DIR_SEARCH}