Add CheckMPIF2008StandardCompiles and switch Futility_Configurations … (#326)

* Add CheckMPIF2008StandardCompiles and switch Futility_Configurations to use it

* Specify full path to fortran standard check function

cmake/CheckMPIF2008StandardCompiles.cmake

+#++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++!
+#                          Futility Development Group                          !
+#                             All rights reserved.                             !
+#                                                                              !
+# Futility is a jointly-maintained, open-source project between the University !
+# of Michigan and Oak Ridge National Laboratory.  The copyright and license    !
+# can be found in LICENSE.txt in the head directory of this repository.        !
+#++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++!
+
+FUNCTION(CHECK_MPI_F2008_STANDARD_COMPILES )
+    SET(CHECK_TEST_SOURCE
+    "
+      PROGRAM main
+        INCLUDE 'mpif.h'
+        WRITE(*,*) 'HELLO WORLD'
+      ENDPROGRAM
+    "
+    )
+
+    IF(TPL_ENABLE_MPI AND NOT DEFINED MPI_F2008_STANDARD_COMPLIANT)
+        IF("3.1.3" VERSION_GREATER CMAKE_VERSION)
+            MESSAGE(STATUS "Skipping check if MPI is F2008 standard compliant")
+            GLOBAL_SET(MPI_F2008_STANDARD_COMPLIANT TRUE)
+        ELSE()
+            #CMake module "CHECK_Fortran_SOURCE_COMPILERS" is only available in
+            #version 3.1.3 and later
+            INCLUDE(CheckFortranSourceCompiles)
+
+            #Determine appropriate flag for compiler test
+            IF(CMAKE_Fortran_COMPILER_ID STREQUAL "Intel" OR
+              (MSVC_IDE AND "${CMAKE_Fortran_COMPILER}" STREQUAL "ifort"))
+              IF("${CMAKE_SYSTEM_NAME}" STREQUAL "Windows")
+                SET(FSTDFLAG "/std:f08")
+              ELSE()
+                SET(FSTDFLAG "-std f08")
+              ENDIF()
+            ELSEIF(CMAKE_Fortran_COMPILER_ID STREQUAL "GNU")
+              SET(FSTDFLAG "-std=f2008")
+#            ELSEIF(CMAKE_Fortran_COMPILER_ID STREQUAL "PGI")
+#              SET(FSTDFLAG "-Mstandard")
+#            ELSEIF(CMAKE_Fortran_COMPILER_ID STREQUAL "Cray")
+#              SET(FSTDFLAG "-e n")
+#            ELSEIF(CMAKE_Fortran_COMPILER_ID STREQUAL "IBM")
+#
+#            ELSEIF(CMAKE_Fortran_COMPILER_ID STREQUAL "Pathscale")
+#
+            ENDIF()
+            SET(OLD_CRF ${CMAKE_REQUIRED_FLAGS})
+            SET(CMAKE_REQUIRED_FLAGS ${CMAKE_REQUIRED_FLAGS} ${FSTDFLAG})
+
+            CHECK_Fortran_SOURCE_COMPILES(${CHECK_TEST_SOURCE}
+                MPI_F2008_STANDARD_COMPILES)
+            IF(MPI_F2008_STANDARD_COMPILES)
+                GLOBAL_SET(MPI_F2008_STANDARD_COMPLIANT TRUE)
+            ELSE()
+                GLOBAL_SET(MPI_F2008_STANDARD_COMPLIANT FALSE)
+            ENDIF()
+
+            SET(CMAKE_REQUIRED_FLAGS ${OLD_CRF})
+        ENDIF()
+    ELSE()
+        IF(TPL_ENABLE_MPI)
+            MESSAGE(STATUS
+                "MPI F2008 standard compliance already set as: "
+                ${MPI_F2008_STANDARD_COMPLIANT}
+            )
+        ELSE()
+            GLOBAL_SET(MPI_F2008_STANDARD_COMPLIANT TRUE)
+        ENDIF()
+    ENDIF()
+ENDFUNCTION()
+

cmake/Futility_Configurations.cmake

@@ -6,7 +6,7 @@
 # of Michigan and Oak Ridge National Laboratory.  The copyright and license    !
 # can be found in LICENSE.txt in the head directory of this repository.        !
 #++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++!
-INCLUDE(CheckMPIF2003StandardCompiles)
+INCLUDE(${Futility_SOURCE_DIR}/cmake/CheckMPIF2008StandardCompiles.cmake)
 IF(${PROJECT_NAME}_VERBOSE_CONFIGURE)
     MESSAGE("Configuring Futility compiler options for:")
     PRINT_VAR(PACKAGE_NAME)
@@ -110,14 +110,14 @@ ENDIF()
 
 # Check if MPI supports Fortran 2003 standard
 IF(${PROJECT_NAME}_BUILD_STANDARD)
-    CHECK_MPI_F2003_STANDARD_COMPILES()
-    IF(${PROJECT_NAME}_BUILD_STANDARD AND NOT MPI_F2003_STANDARD_COMPLIANT)
-        MESSAGE(STATUS "Disabling F2003 Standard since MPI install is not F2003 compliant")
-        GLOBAL_SET(${PROJECT_NAME}_BUILD_STANDARD ${MPI_F2003_STANDARD_COMPLIANT})
+    CHECK_MPI_F2008_STANDARD_COMPILES()
+    IF(${PROJECT_NAME}_BUILD_STANDARD AND NOT MPI_F2008_STANDARD_COMPLIANT)
+        MESSAGE(STATUS "Disabling F2008 Standard since MPI install is not F2008 compliant")
+        GLOBAL_SET(${PROJECT_NAME}_BUILD_STANDARD ${MPI_F2008_STANDARD_COMPLIANT})
     ENDIF()
 ELSE()
     IF(${PACKAGE_NAME} STREQUAL "Futility")
-        MESSAGE(STATUS "Project has disabled F2003 standard compilation")
+        MESSAGE(STATUS "Project has disabled F2008 standard compilation")
     ENDIF()
 ENDIF()
 
@@ -145,7 +145,7 @@ IF(CMAKE_Fortran_COMPILER_ID STREQUAL "Intel" OR
     IF(${PROJECT_NAME}_BUILD_STANDARD)
         SET(Fortran_FLAGS
             ${Fortran_FLAGS}
-            ${CSYM}stand${s}f03
+            ${CSYM}stand${s}f08
            )
     ENDIF()
 
@@ -242,7 +242,7 @@ ELSEIF(CMAKE_Fortran_COMPILER_ID STREQUAL "GNU")
     IF(${PROJECT_NAME}_BUILD_STANDARD)
         SET(Fortran_FLAGS
             ${Fortran_FLAGS}
-            ${CSYM}std=f2003
+            ${CSYM}std=f2008
            )
     ENDIF()
 
@@ -307,7 +307,7 @@ ELSEIF(CMAKE_Fortran_COMPILER_ID STREQUAL "PGI")
         ${CSYM}Mallocatable=03
         ${CSYM}pgf90libs
        )
-    ## TODO: Figure out what sets 2003 standard for PGI and add same if statement for Futility_BUILD_NOSTANDARD
+    ## TODO: Figure out what sets 2008 standard for PGI and add same if statement for Futility_BUILD_NOSTANDARD
     SET(Fortran_FLAGS_DEBUG
         ${CSYM}g
         ${CSYM}Mbounds
@@ -355,7 +355,7 @@ ELSEIF(CMAKE_Fortran_COMPILER_ID STREQUAL "NAG")
     IF(${PROJECT_NAME}_BUILD_STANDARD)
         SET(Fortran_FLAGS
             ${Fortran_FLAGS}
-            ${CSYM}f2003
+            ${CSYM}f2008
            )
     ENDIF()