report which petsc/slepc we found

CMakeLists.txt

@@ -495,7 +495,7 @@ if(HAVE_MESH OR HAVE_PLUGINS)
       list(APPEND EXTERNAL_LIBRARIES ${ANN_LIB})
       list(APPEND EXTERNAL_INCLUDES ${ANN_INC})
     else(ANN_LIB AND ANN_INC)
-      message(STATUS "System ANN not found - using contrib/ANN instead")
+      message(STATUS "System ANN not found: using contrib/ANN instead")
       add_subdirectory(contrib/ANN)
       include_directories(contrib/ANN/include)
     endif(ANN_LIB AND ANN_INC)
@@ -610,7 +610,7 @@ if(HAVE_MESH)
        list(APPEND EXTERNAL_LIBRARIES ${MMG3D_LIB})
        list(APPEND EXTERNAL_INCLUDES ${MMG3D_INC})
     else(MMG3D_LIB AND MMG3D_INC)
-       message(STATUS "System MMG3D not found - using contrib/mmg3d instead")
+       message(STATUS "System MMG3D not found: using contrib/mmg3d instead")
        add_subdirectory(contrib/mmg3d)
        include_directories(contrib/mmg3d/build/sources)
     endif(MMG3D_LIB AND MMG3D_INC)
@@ -693,7 +693,7 @@ if(HAVE_SOLVER)
     if(GMM_INC)
       list(APPEND EXTERNAL_INCLUDES ${GMM_INC})
     else(GMM_INC)
-      message(STATUS "System GMM not found - using contrib/gmm instead")
+      message(STATUS "System GMM not found: using contrib/gmm instead")
       include_directories(contrib/gmm)
     endif(GMM_INC)
     set_config_option(HAVE_GMM "Gmm")
@@ -729,6 +729,8 @@ if(HAVE_SOLVER)
     if(EXISTS ${ENV_PETSC_DIR}/${ENV_PETSC_ARCH}/conf/petscvariables)
       # old-style PETSc installations (using PETSC_DIR and PETSC_ARCH)
       set_config_option(HAVE_PETSC "PETSc")
+      message(STATUS "Using PETSc dir: ${ENV_PETSC_DIR}")
+      message(STATUS "Using PETSc arch: ${ENV_PETSC_ARCH}")
       file(STRINGS ${ENV_PETSC_DIR}/${ENV_PETSC_ARCH}/conf/petscvariables 
            PETSC_VARIABLES NEWLINE_CONSUME)
       # find include directories
@@ -768,6 +770,7 @@ if(HAVE_SOLVER)
                     ${ENV_PETSC_ARCH}/include include/slepc)
           if(SLEPC_INC)
             set_config_option(HAVE_SLEPC "SLEPc")
+            message(STATUS "Using SLEPc dir: ${ENV_SLEPC_DIR}")
             list(APPEND EXTERNAL_LIBRARIES ${SLEPC_LIB})
             list(APPEND EXTERNAL_INCLUDES ${SLEPC_INC}) 
             find_path(SLEPC_INC2 "slepcconf.h" PATHS ${ENV_SLEPC_DIR}