From 708c837788bfe33afe7ae5813a50e1b414174f94 Mon Sep 17 00:00:00 2001
From: Hans Johnson <hans-johnson@uiowa.edu>
Date: Tue, 7 Jul 2020 08:53:22 -0500
Subject: [PATCH] ENH: Do not pollute the global link_directories namespace

link_directories and include_directories affects
every subsequent compile invocation.  Explicitly
include link/include directories only where needed.
---
 CMake/itkExternal_FFTW.cmake | 3 ---
 1 file changed, 3 deletions(-)

diff --git a/CMake/itkExternal_FFTW.cmake b/CMake/itkExternal_FFTW.cmake
index 090c744f439..2b8981d173b 100644
--- a/CMake/itkExternal_FFTW.cmake
+++ b/CMake/itkExternal_FFTW.cmake
@@ -61,7 +61,6 @@ endif()
 set(FFTW_OPTIMIZATION_CONFIGURATION "" CACHE INTERNAL "architecture flags: --enable-sse --enable-sse2 --enable-altivec --enable-mips-ps --enable-cell")
 if(ITK_USE_SYSTEM_FFTW)
   find_package( FFTW )
-  link_directories(${FFTW_LIBDIR})
 else()
 
   if(WIN32 AND NOT MINGW)
@@ -148,8 +147,6 @@ else()
     endif()
     set(FFTW_INCLUDE_PATH ${ITK_BINARY_DIR}/fftw/include)
     set(FFTW_LIBDIR ${ITK_BINARY_DIR}/fftw/lib)
-    link_directories(${FFTW_LIBDIR})
-    include_directories(${FFTW_INCLUDE_PATH})
     #
     # copy libraries into install tree
     install(CODE