vcpkg/ports/pcl/no-absolute.patch

diff --git a/PCLConfig.cmake.in b/PCLConfig.cmake.in
index 4137ed1..167fde2 100644
--- a/PCLConfig.cmake.in
+++ b/PCLConfig.cmake.in
@@ -225,7 +225,7 @@ macro(find_flann)
   if(PCL_ALL_IN_ONE_INSTALLER)
     set(FLANN_ROOT "${PCL_ROOT}/3rdParty/Flann")
   elseif(NOT FLANN_ROOT)
-    set(FLANN_ROOT "@FLANN_ROOT@")
+    set(FLANN_ROOT "${VCPKG_IMPORT_PREFIX}")
   endif()
 
   set(PCL_FLANN_REQUIRED_TYPE @PCL_FLANN_REQUIRED_TYPE@)