Added hints variable of missing dependencies for CMake

Author: theZiz

lib/ISAACConfig.cmake

@@ -1,9 +1,10 @@
 # - Config file for the isaac package
 # It defines the following variables
-#  ISAAC_INCLUDE_DIRS - include directories for FooBar
-#  ISAAC_LIBRARIES    - libraries to link against
-#  ISAAC_DEFINITIONS  - necessary definitions
-#  ISAAC_FOUND        - whether ISAAC was found and is useable
+#  ISAAC_INCLUDE_DIRS     - include directories for FooBar
+#  ISAAC_LIBRARIES        - libraries to link against
+#  ISAAC_DEFINITIONS      - necessary definitions
+#  ISAAC_FOUND            - whether ISAAC was found and is useable
+#  ISAAC_DEPENDENCY_HINTS - hints about missing dependencies
 #
 # It defines the following options
 #  ISAAC_THREADING
@@ -71,26 +72,37 @@ if (ISAAC_VALGRIND_TWEAKS)
   set(ISAAC_DEFINITIONS ${ISAAC_DEFINITIONS} -DISAAC_VALGRIND_TWEAKS)
 endif ()
 
+set(ISAAC_DEPENDENCY_HINTS "missing dependencies:")
+
 ###############################################################################
 # JANSSON LIB
 ###############################################################################
 # set(JANSSON_DIR JANSSON_DIR_NOT-FOUND CACHE PATH "The location of the jansson library")
-find_package (Jansson CONFIG)
+find_package (Jansson CONFIG QUIET)
+if (NOT Jansson_FOUND)
+    set(ISAAC_DEPENDENCY_HINTS ${ISAAC_DEPENDENCY_HINTS} "\n--   libJansson")
+endif()
 set(ISAAC_LIBRARIES ${ISAAC_LIBRARIES} ${JANSSON_LIBRARIES})
 set(ISAAC_INCLUDE_DIRS ${ISAAC_INCLUDE_DIRS} ${JANSSON_INCLUDE_DIRS})
 
 
 ###############################################################################
 # PTHREADS
 ###############################################################################
-find_package (Threads MODULE)
+find_package (Threads MODULE QUIET)
+if (NOT Threads_FOUND)
+    set(ISAAC_DEPENDENCY_HINTS ${ISAAC_DEPENDENCY_HINTS} "\n--   pThreads")
+endif()
 set(ISAAC_LIBRARIES ${ISAAC_LIBRARIES} ${CMAKE_THREAD_LIBS_INIT})
 
 
 ################################################################################
 # IceT LIB
 ################################################################################
-find_package (IceT CONFIG)
+find_package (IceT CONFIG QUIET)
+if (NOT IceT_FOUND)
+    set(ISAAC_DEPENDENCY_HINTS ${ISAAC_DEPENDENCY_HINTS} "\n--   IceT")
+endif()
 set(ISAAC_LIBRARIES ${ISAAC_LIBRARIES} ${ICET_CORE_LIBS})
 set(ISAAC_LIBRARIES ${ISAAC_LIBRARIES} ${ICET_MPI_LIBS})
 set(ISAAC_INCLUDE_DIRS ${ISAAC_INCLUDE_DIRS} ${ICET_INCLUDE_DIRS})
@@ -99,7 +111,10 @@ set(ISAAC_INCLUDE_DIRS ${ISAAC_INCLUDE_DIRS} ${ICET_INCLUDE_DIRS})
 ################################################################################
 # BOOST LIB
 ################################################################################
-find_package(Boost 1.56.0 MODULE)
+find_package(Boost 1.56.0 MODULE QUIET)
+if (NOT Boost_FOUND)
+    set(ISAAC_DEPENDENCY_HINTS ${ISAAC_DEPENDENCY_HINTS} "\n--   Boost")
+endif()
 set(ISAAC_INCLUDE_DIRS ${ISAAC_INCLUDE_DIRS} ${Boost_INCLUDE_DIR})
 set(ISAAC_DEFINITIONS ${ISAAC_DEFINITIONS} -DBOOST_ALL_NO_LIB)
 
@@ -109,7 +124,7 @@ set(ISAAC_PRIVATE_FOUND true)
 # CUDA LIB
 ################################################################################
 if (ISAAC_CUDA)
-    find_package( CUDA 7.0 )
+    find_package( CUDA 7.0 QUIET)
     if (!CUDA_FOUND)
         set(ISAAC_PRIVATE_FOUND false)
     else()
@@ -122,9 +137,10 @@ endif()
 # Alpaka LIB
 ################################################################################
 if (ISAAC_ALPAKA)
-    find_package(alpaka)
+    find_package(alpaka QUIET)
     if (!alpaka_FOUND)
         set(ISAAC_PRIVATE_FOUND false)
+        set(ISAAC_DEPENDENCY_HINTS ${ISAAC_DEPENDENCY_HINTS} "\n--   Cuda or Alpaka")
     else()
         set(ISAAC_INCLUDE_DIRS ${ISAAC_INCLUDE_DIRS} ${alpaka_INCLUDE_DIRS})
         set(ISAAC_LIBRARIES ${ISAAC_LIBRARIES} ${alpaka_LIBRARIES})
@@ -141,7 +157,10 @@ list(REMOVE_DUPLICATES CUDA_NVCC_FLAGS)
 ################################################################################
 # MPI LIB
 ################################################################################
-find_package(MPI MODULE)
+find_package(MPI MODULE QUIET)
+if (NOT MPI_FOUND)
+    set(ISAAC_DEPENDENCY_HINTS ${ISAAC_DEPENDENCY_HINTS} "\n--   MPI")
+endif()
 set(ISAAC_INCLUDE_DIRS ${ISAAC_INCLUDE_DIRS} ${MPI_C_INCLUDE_PATH})
 set(ISAAC_LIBRARIES ${ISAAC_LIBRARIES} ${MPI_C_LIBRARIES})
 if (ISAAC_PRIVATE_FOUND)