 +Cflags: -I${includedir}/arpack@SUFFIX64@
 diff -urN arpack-ng-3.8.0_orig/arpack-ng-config.cmake.in arpack-ng-3.8.0/arpack-ng-config.cmake.in
 --- arpack-ng-3.8.0_orig/arpack-ng-config.cmake.in	2020-12-07 11:40:45.000000000 +0100
-+++ arpack-ng-3.8.0/arpack-ng-config.cmake.in	2022-01-24 09:38:46.168679800 +0100
++++ arpack-ng-3.8.0/arpack-ng-config.cmake.in	2022-01-26 15:56:50.035370300 +0100
 @@ -19,7 +19,7 @@
  
  # Create arpack targets.
  add_library(ARPACK::ARPACK INTERFACE IMPORTED)
 -set_target_properties(ARPACK::ARPACK PROPERTIES INTERFACE_INCLUDE_DIRECTORIES "${includedir}/arpack")
-+set_target_properties(ARPACK::ARPACK PROPERTIES INTERFACE_INCLUDE_DIRECTORIES "${includedir}/arpack${SUFFIX64}")
- set_target_properties(ARPACK::ARPACK PROPERTIES INTERFACE_LINK_LIBRARIES      "arpack")
+-set_target_properties(ARPACK::ARPACK PROPERTIES INTERFACE_LINK_LIBRARIES      "arpack")
++set_target_properties(ARPACK::ARPACK PROPERTIES INTERFACE_INCLUDE_DIRECTORIES "${includedir}/arpack@SUFFIX64@")
++set_target_properties(ARPACK::ARPACK PROPERTIES INTERFACE_LINK_LIBRARIES      "arpack@LIBSUFFIX@")
  add_library(PARPACK::PARPACK INTERFACE IMPORTED)
- set_target_properties(PARPACK::PARPACK PROPERTIES INTERFACE_LINK_LIBRARIES    "parpack")
+-set_target_properties(PARPACK::PARPACK PROPERTIES INTERFACE_LINK_LIBRARIES    "parpack")
++set_target_properties(PARPACK::PARPACK PROPERTIES INTERFACE_LINK_LIBRARIES    "parpack@LIBSUFFIX@")

diff -urN arpack-ng-3.8.0_orig/CMakeLists.txt arpack-ng-3.8.0/CMakeLists.txt
--- arpack-ng-3.8.0_orig/CMakeLists.txt	2020-12-07 11:40:45.000000000 +0100
+++ arpack-ng-3.8.0/CMakeLists.txt	2022-01-26 13:38:30.619004400 +0100
@@ -678,6 +678,10 @@
 # 'make install' to the correct location
 include(GNUInstallDirs)

 # Convert variable names to those expected by the .pc file.
 set(prefix ${CMAKE_INSTALL_PREFIX})
 set(exec_prefix \${prefix})
@@ -727,41 +731,41 @@
 endif ()
 
 if(ICB)
