Put verbose deal.II error message back in place

diff --git a/CeresFE/CMakeLists.txt b/CeresFE/CMakeLists.txt
index 62ce920d349621a86a9b725a3adf26fcefc56451..b06c67b66615b65102045692bd5be88d644bd6a9 100644 (file)
--- a/CeresFE/CMakeLists.txt
+++ b/CeresFE/CMakeLists.txt
@@ -4,10 +4,18 @@
 
 CMAKE_MINIMUM_REQUIRED(VERSION 3.0.2)
 
-FIND_PACKAGE(deal.II 9.0 REQUIRED
+FIND_PACKAGE(deal.II 9.0 QUIET
   HINTS ${deal.II_DIR} ${DEAL_II_DIR} ../ ../../ $ENV{DEAL_II_DIR}
   )
 
+IF(NOT ${deal.II_FOUND})
+  MESSAGE(FATAL_ERROR "\n"
+    "*** Could not locate a (sufficiently recent) version of deal.II. ***\n\n"
+    "You may want to either pass a flag -DDEAL_II_DIR=/path/to/deal.II to cmake\n"
+    "or set an environment variable \"DEAL_II_DIR\" that contains this path."
+    )
+ENDIF()
+
 DEAL_II_INITIALIZE_CACHED_VARIABLES()
 PROJECT("ceres")