fix cmake bug in PETSC_WITH_KOKKOS check

The variable DEAL_II_PETSC_WITH_KOKKOS is only defined once the
configuration finishes.

diff --git a/cmake/configure/configure_20_petsc.cmake b/cmake/configure/configure_20_petsc.cmake
index 9b55e63bcbfad1c80c5ef42c98b0fe4f9fbb404f..f3a237da7ecab21d7d2d7effc37a80ff8cd876ac 100644 (file)
--- a/cmake/configure/configure_20_petsc.cmake
+++ b/cmake/configure/configure_20_petsc.cmake
@@ -82,7 +82,7 @@ macro(feature_petsc_find_external var)
       set(${var} FALSE)
     endif()
 
-    if(DEAL_II_PETSC_WITH_KOKKOS)
+    if(PETSC_WITH_KOKKOS)
       if(DEAL_II_FORCE_BUNDLED_KOKKOS)
         set(PETSC_ADDITIONAL_ERROR_STRING
           ${PETSC_ADDITIONAL_ERROR_STRING}