Merge multiple PRs to 1.8 (#1230)

Merge Fix Fortran REGEX and newlines #1226
Merge Github #969 Use stdout instead of file for configure check #1089
Merge Consolidate VFD create list macro #1132

2 files changed, 80 insertions, 117 deletions

diff --git a/m4/aclocal_fc.f90 b/m4/aclocal_fc.f90
index 4308687..240a768 100644
--- a/m4/aclocal_fc.f90
+++ b/m4/aclocal_fc.f90
@@ -11,12 +11,12 @@
 !   help@hdfgroup.org.                                                        *
 ! * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * *
 !
-! This file contains all the configure test programs 
+! This file contains all the configure test programs
 ! used by autotools and cmake. This avoids having to
 ! duplicate code for both cmake and autotool tests.
 ! For autotools, a program below is chosen via a
 ! sed command in aclocal_fc.m4. For cmake, a program
-! below is chosen via the macro READ_SOURCE in 
+! below is chosen via the macro READ_SOURCE in
 ! HDF5UseFortran.cmake
 !
 
@@ -82,14 +82,13 @@ END PROGRAM PROG_FC_C_LONG_DOUBLE_EQ_C_DOUBLE
 
 !---- START ----- Determine the available KINDs for REALs and INTEGERs
 PROGRAM FC_AVAIL_KINDS
+      USE, INTRINSIC :: ISO_FORTRAN_ENV, ONLY : stderr=>ERROR_UNIT
       IMPLICIT NONE
       INTEGER :: ik, jk, k, kk, max_decimal_prec
       INTEGER :: prev_rkind, num_rkinds = 1, num_ikinds = 1
       INTEGER, DIMENSION(1:10) :: list_ikinds = -1
       INTEGER, DIMENSION(1:10) :: list_rkinds = -1
       LOGICAL :: new_kind
-  
-      OPEN(8, FILE='pac_fconftest.out', FORM='formatted')
 
       ! Find integer KINDs
       list_ikinds(num_ikinds)=SELECTED_INT_KIND(1)
@@ -103,11 +102,11 @@ PROGRAM FC_AVAIL_KINDS
       ENDDO
 
       DO k = 1, num_ikinds
-         WRITE(8,'(I0)', ADVANCE='NO') list_ikinds(k)
+         WRITE(stderr,'(I0)', ADVANCE='NO') list_ikinds(k)
          IF(k.NE.num_ikinds)THEN
-            WRITE(8,'(A)',ADVANCE='NO') ','
+            WRITE(stderr,'(A)',ADVANCE='NO') ','
          ELSE
-            WRITE(8,'()')
+            WRITE(stderr,'()')
          ENDIF
       ENDDO
 
@@ -140,23 +139,23 @@ PROGRAM FC_AVAIL_KINDS
       ENDDO prec
 
       DO k = 1, num_rkinds
-         WRITE(8,'(I0)', ADVANCE='NO') list_rkinds(k)
+         WRITE(stderr,'(I0)', ADVANCE='NO') list_rkinds(k)
          IF(k.NE.num_rkinds)THEN
-            WRITE(8,'(A)',ADVANCE='NO') ','
+            WRITE(stderr,'(A)',ADVANCE='NO') ','
          ELSE
-            WRITE(8,'()')
+            WRITE(stderr,'()')
          ENDIF
       ENDDO
 
-     WRITE(8,'(I0)') max_decimal_prec
-     WRITE(8,'(I0)') num_ikinds
-     WRITE(8,'(I0)') num_rkinds
+     WRITE(stderr,'(I0)') max_decimal_prec
+     WRITE(stderr,'(I0)') num_ikinds
+     WRITE(stderr,'(I0)') num_rkinds
 END PROGRAM FC_AVAIL_KINDS
 !---- END ----- Determine the available KINDs for REALs and INTEGERs
 
 PROGRAM FC_MPI_CHECK
   INCLUDE 'mpif.h'
   INTEGER :: comm, amode, info, fh, ierror
-  CHARACTER(LEN=1) :: filename 
+  CHARACTER(LEN=1) :: filename
   CALL MPI_File_open( comm, filename, amode, info, fh, ierror)
 END PROGRAM FC_MPI_CHECK
diff --git a/m4/aclocal_fc.m4 b/m4/aclocal_fc.m4
index 17f2329..532bfb4 100644
--- a/m4/aclocal_fc.m4
+++ b/m4/aclocal_fc.m4
@@ -30,7 +30,7 @@ dnl fortran compilers for use with AC_PROG_FC that is more suitable for HPC
 dnl software packages
 AC_DEFUN([PAC_FC_SEARCH_LIST],
          [gfortran ifort pgf90 pathf90 pathf95 xlf90 xlf95 xlf2003 f90 epcf90 f95 fort lf95 g95 ifc efc gfc])
-dnl 
+dnl
 dnl PAC_PROG_FC([COMPILERS])
 dnl
 dnl COMPILERS is a space separated list of Fortran compilers to search for.
@@ -54,10 +54,10 @@ dnl ifc - An older Intel compiler
 dnl fc  - A compiler on some unknown system.  This has been removed because
 dnl       it may also be the name of a command for something other than
 dnl       the Fortran compiler (e.g., fc=file system check!)
-dnl gfortran - The GNU Fortran compiler (not the same as g95) 
+dnl gfortran - The GNU Fortran compiler (not the same as g95)
 dnl gfc - An alias for gfortran recommended in cygwin installations
 dnl NOTE: this macro suffers from a basically intractable "expanded before it
-dnl was required" problem when libtool is also used 
+dnl was required" problem when libtool is also used
 dnl [1] MPICH.org
 dnl
 
@@ -66,9 +66,9 @@ dnl See if the fortran compiler supports the intrinsic module "ISO_FORTRAN_ENV"
 AC_DEFUN([PAC_PROG_FC_ISO_FORTRAN_ENV],[
   HAVE_ISO_FORTRAN_ENV="no"
   AC_MSG_CHECKING([if Fortran compiler supports intrinsic module ISO_FORTRAN_ENV])
-  TEST_SRC="`sed -n '/PROGRAM PROG_FC_ISO_FORTRAN_ENV/,/END PROGRAM PROG_FC_ISO_FORTRAN_ENV/p' $srcdir/m4/aclocal_fc.f90`"	
+  TEST_SRC="`sed -n '/PROGRAM PROG_FC_ISO_FORTRAN_ENV/,/END PROGRAM PROG_FC_ISO_FORTRAN_ENV/p' $srcdir/m4/aclocal_fc.f90`"
   AC_LINK_IFELSE([$TEST_SRC],[AC_MSG_RESULT([yes])
-     	HAVE_ISO_FORTRAN_ENV="yes"],
+        HAVE_ISO_FORTRAN_ENV="yes"],
       [AC_MSG_RESULT([no])])
 ])
 
@@ -79,7 +79,7 @@ AC_DEFUN([PAC_PROG_FC_SIZEOF],[
   AC_MSG_CHECKING([if Fortran compiler supports intrinsic SIZEOF])
   TEST_SRC="`sed -n '/PROGRAM PROG_FC_SIZEOF/,/END PROGRAM PROG_FC_SIZEOF/p' $srcdir/m4/aclocal_fc.f90`"
   AC_LINK_IFELSE([$TEST_SRC],[AC_MSG_RESULT([yes])
-     	HAVE_SIZEOF_FORTRAN="yes"],
+        HAVE_SIZEOF_FORTRAN="yes"],
       [AC_MSG_RESULT([no])])
 ])
 
@@ -90,7 +90,7 @@ AC_DEFUN([PAC_PROG_FC_C_SIZEOF],[
   AC_MSG_CHECKING([if Fortran compiler supports intrinsic C_SIZEOF])
   TEST_SRC="`sed -n '/PROGRAM PROG_FC_C_SIZEOF/,/END PROGRAM PROG_FC_C_SIZEOF/p' $srcdir/m4/aclocal_fc.f90`"
   AC_LINK_IFELSE([$TEST_SRC], [AC_MSG_RESULT([yes])
-     	HAVE_C_SIZEOF_FORTRAN="yes"],
+        HAVE_C_SIZEOF_FORTRAN="yes"],
      [AC_MSG_RESULT([no])])
 ])
 
@@ -101,7 +101,7 @@ AC_DEFUN([PAC_PROG_FC_STORAGE_SIZE],[
   AC_MSG_CHECKING([if Fortran compiler supports intrinsic STORAGE_SIZE])
   TEST_SRC="`sed -ne '/PROGRAM PROG_FC_STORAGE_SIZE/,/END PROGRAM PROG_FC_STORAGE_SIZE/p' $srcdir/m4/aclocal_fc.f90`"
   AC_LINK_IFELSE([$TEST_SRC], [AC_MSG_RESULT([yes])
-     	HAVE_STORAGE_SIZE_FORTRAN="yes"],
+        HAVE_STORAGE_SIZE_FORTRAN="yes"],
      [AC_MSG_RESULT([no])])
 
 ])
@@ -114,7 +114,7 @@ AC_DEFUN([PAC_PROG_FC_HAVE_C_LONG_DOUBLE],[
   TEST_SRC=""
   TEST_SRC="`sed -n '/PROGRAM PROG_FC_HAVE_C_LONG_DOUBLE/,/END PROGRAM PROG_FC_HAVE_C_LONG_DOUBLE/p' $srcdir/m4/aclocal_fc.f90`"
   AC_LINK_IFELSE([$TEST_SRC], [AC_MSG_RESULT([yes])
-     	HAVE_C_LONG_DOUBLE_FORTRAN="yes"],
+        HAVE_C_LONG_DOUBLE_FORTRAN="yes"],
      [AC_MSG_RESULT([no])])
 ])
 
@@ -122,11 +122,11 @@ dnl Check if C_LONG_DOUBLE is different from C_DOUBLE
 
 if  test "X$FORTRAN_HAVE_C_LONG_DOUBLE" = "Xyes"; then
 AC_DEFUN([PAC_PROG_FC_C_LONG_DOUBLE_EQ_C_DOUBLE],[
-  C_LONG_DOUBLE_IS_UNIQUE_FORTRAN="no"	
+  C_LONG_DOUBLE_IS_UNIQUE_FORTRAN="no"
   AC_MSG_CHECKING([if Fortran C_LONG_DOUBLE is different from C_DOUBLE])
   TEST_SRC="`sed -n '/MODULE type_mod/,/END PROGRAM PROG_FC_C_LONG_DOUBLE_EQ_C_DOUBLE/p' $srcdir/m4/aclocal_fc.f90`"
-  AC_COMPILE_IFELSE([$TEST_SRC], [AC_MSG_RESULT([yes]) 
-            C_LONG_DOUBLE_IS_UNIQUE_FORTRAN="yes"], 
+  AC_COMPILE_IFELSE([$TEST_SRC], [AC_MSG_RESULT([yes])
+            C_LONG_DOUBLE_IS_UNIQUE_FORTRAN="yes"],
          [AC_MSG_RESULT([no])])
 ])
 fi
@@ -171,16 +171,16 @@ AC_DEFUN([PAC_PROG_FC_HAVE_F2003_REQUIREMENTS],[
    HAVE_F2003_REQUIREMENTS="no"
    AC_MSG_CHECKING([if Fortran compiler version compatible with Fortran 2003 HDF])
    TEST_SRC="`sed -n '/PROG_FC_HAVE_F2003_REQUIREMENTS/,/END PROGRAM PROG_FC_HAVE_F2003_REQUIREMENTS/p' $srcdir/m4/aclocal_fc.f90`"
-   AC_COMPILE_IFELSE([$TEST_SRC], [AC_MSG_RESULT([yes]) 
-            HAVE_F2003_REQUIREMENTS="yes"], 
+   AC_COMPILE_IFELSE([$TEST_SRC], [AC_MSG_RESULT([yes])
+            HAVE_F2003_REQUIREMENTS="yes"],
          [AC_MSG_RESULT([no])])
 ])
 
 dnl -------------------------------------------------------------------------
 dnl AC_F9X_MODS()
 dnl
-dnl	Check how F9X handles modules. This macro also checks which
-dnl	command-line option to use to include the module once it's built.
+dnl    Check how F9X handles modules. This macro also checks which
+dnl    command-line option to use to include the module once it's built.
 dnl
 AC_DEFUN([AC_F9X_MODS],
 [AC_MSG_CHECKING(what $FC does with modules)
@@ -256,7 +256,6 @@ else
 fi
 AC_SUBST(F9XMODFLAG)
 AC_SUBST(F9XMODEXT)
-rm -rf conftest*
 AC_LANG_POP(Fortran)
 ])
 
@@ -274,9 +273,9 @@ dnl   Change to the Fortran 90 language
 dnl   Try link a simple MPI program.
       AC_MSG_CHECKING([whether a simple MPI-IO Fortran program can be linked])
       AC_LINK_IFELSE([$TEST_SRC],
-	  [AC_MSG_RESULT([yes])],
-	  [AC_MSG_RESULT([no])
-	   AC_MSG_ERROR([unable to link a simple MPI-IO Fortran program])])
+    [AC_MSG_RESULT([yes])],
+    [AC_MSG_RESULT([no])
+    AC_MSG_ERROR([unable to link a simple MPI-IO Fortran program])])
 
 dnl   Change to the C language
       AC_LANG_POP(Fortran)
@@ -290,51 +289,43 @@ dnl This is a runtime test.
 dnl
 AC_DEFUN([PAC_FC_AVAIL_KINDS],[
 AC_LANG_PUSH([Fortran])
-rm -f pac_fconftest.out
 TEST_SRC="`sed -n '/PROGRAM FC_AVAIL_KINDS/,/END PROGRAM FC_AVAIL_KINDS/p' $srcdir/m4/aclocal_fc.f90`"
 AC_RUN_IFELSE([$TEST_SRC],
  [
-    if test -s pac_fconftest.out ; then
-	
-     dnl The output from the above program will be:
-     dnl    -- LINE 1 --  valid integer kinds (comma seperated list)
-     dnl    -- LINE 2 --  valid real kinds (comma seperated list)
-     dnl    -- LINE 3 --  max decimal precision for reals
-     dnl    -- LINE 4 --  number of valid integer kinds
-     dnl    -- LINE 5 --  number of valid real kinds
-
-        pac_validIntKinds="`sed -n '1p' pac_fconftest.out`"
-	pac_validRealKinds="`sed -n '2p' pac_fconftest.out`"
-        PAC_FC_MAX_REAL_PRECISION="`sed -n '3p' pac_fconftest.out`"
+        dnl The output from the above program will be:
+        dnl    -- LINE 1 --  valid integer kinds (comma seperated list)
+        dnl    -- LINE 2 --  valid real kinds (comma seperated list)
+        dnl    -- LINE 3 --  max decimal precision for reals
+        dnl    -- LINE 4 --  number of valid integer kinds
+        dnl    -- LINE 5 --  number of valid real kinds
+
+        pac_validIntKinds=$(./conftest$EXEEXT 2>&1 | sed -n '1p')
+        pac_validRealKinds=$(./conftest$EXEEXT 2>&1 | sed -n '2p')
+        PAC_FC_MAX_REAL_PRECISION=$(./conftest$EXEEXT 2>&1 | sed -n '3p')
         AC_DEFINE_UNQUOTED([PAC_FC_MAX_REAL_PRECISION], $PAC_FC_MAX_REAL_PRECISION, [Define Fortran Maximum Real Decimal Precision])
 
         PAC_FC_ALL_INTEGER_KINDS="{`echo $pac_validIntKinds`}"
         PAC_FC_ALL_REAL_KINDS="{`echo $pac_validRealKinds`}"
 
-        PAC_FORTRAN_NUM_INTEGER_KINDS="`sed -n '4p' pac_fconftest.out`"
-	H5CONFIG_F_NUM_IKIND="INTEGER, PARAMETER :: num_ikinds = `echo $PAC_FORTRAN_NUM_INTEGER_KINDS`"
-	H5CONFIG_F_IKIND="INTEGER, DIMENSION(1:num_ikinds) :: ikind = (/`echo $pac_validIntKinds`/)"
-	H5CONFIG_F_NUM_RKIND="INTEGER, PARAMETER :: num_rkinds = `sed -n '5p' pac_fconftest.out`"
-	H5CONFIG_F_RKIND="INTEGER, DIMENSION(1:num_rkinds) :: rkind = (/`echo $pac_validRealKinds`/)"
+        PAC_FORTRAN_NUM_INTEGER_KINDS=$(./conftest$EXEEXT 2>&1 | sed -n '4p')
+        H5CONFIG_F_NUM_IKIND="INTEGER, PARAMETER :: num_ikinds = `echo $PAC_FORTRAN_NUM_INTEGER_KINDS`"
+        H5CONFIG_F_IKIND="INTEGER, DIMENSION(1:num_ikinds) :: ikind = (/`echo $pac_validIntKinds`/)"
+        H5CONFIG_F_NUM_RKIND="INTEGER, PARAMETER :: num_rkinds = $(./conftest$EXEEXT 2>&1 | sed -n '5p')"
+        H5CONFIG_F_RKIND="INTEGER, DIMENSION(1:num_rkinds) :: rkind = (/`echo $pac_validRealKinds`/)"
 
-	AC_DEFINE_UNQUOTED([H5CONFIG_F_NUM_RKIND], $H5CONFIG_F_NUM_RKIND, [Define number of valid Fortran REAL KINDs])
-	AC_DEFINE_UNQUOTED([H5CONFIG_F_NUM_IKIND], $H5CONFIG_F_NUM_IKIND, [Define number of valid Fortran INTEGER KINDs])
-	AC_DEFINE_UNQUOTED([H5CONFIG_F_RKIND], $H5CONFIG_F_RKIND, [Define valid Fortran REAL KINDs])
-	AC_DEFINE_UNQUOTED([H5CONFIG_F_IKIND], $H5CONFIG_F_IKIND, [Define valid Fortran INTEGER KINDs])
+        AC_DEFINE_UNQUOTED([H5CONFIG_F_NUM_RKIND], $H5CONFIG_F_NUM_RKIND, [Define number of valid Fortran REAL KINDs])
+        AC_DEFINE_UNQUOTED([H5CONFIG_F_NUM_IKIND], $H5CONFIG_F_NUM_IKIND, [Define number of valid Fortran INTEGER KINDs])
+        AC_DEFINE_UNQUOTED([H5CONFIG_F_RKIND], $H5CONFIG_F_RKIND, [Define valid Fortran REAL KINDs])
+        AC_DEFINE_UNQUOTED([H5CONFIG_F_IKIND], $H5CONFIG_F_IKIND, [Define valid Fortran INTEGER KINDs])
 
         AC_MSG_CHECKING([for Number of Fortran INTEGER KINDs])
         AC_MSG_RESULT([$PAC_FORTRAN_NUM_INTEGER_KINDS])
         AC_MSG_CHECKING([for Fortran INTEGER KINDs])
         AC_MSG_RESULT([$PAC_FC_ALL_INTEGER_KINDS])
-	AC_MSG_CHECKING([for Fortran REAL KINDs])
-	AC_MSG_RESULT([$PAC_FC_ALL_REAL_KINDS])
-	AC_MSG_CHECKING([for Fortran REALs maximum decimal precision])
-	AC_MSG_RESULT([$PAC_FC_MAX_REAL_PRECISION])
-    else
-        AC_MSG_RESULT([Error])
-        AC_MSG_ERROR([No output from Fortran test program!])
-    fi
-    rm -f pac_fconftest.out
+        AC_MSG_CHECKING([for Fortran REAL KINDs])
+        AC_MSG_RESULT([$PAC_FC_ALL_REAL_KINDS])
+        AC_MSG_CHECKING([for Fortran REALs maximum decimal precision])
+        AC_MSG_RESULT([$PAC_FC_MAX_REAL_PRECISION])
 ],[
     AC_MSG_RESULT([Error])
     AC_MSG_ERROR([Failed to run Fortran program to determine available KINDs])
@@ -347,29 +338,22 @@ AC_REQUIRE([PAC_FC_AVAIL_KINDS])
 AC_MSG_CHECKING([sizeof of available INTEGER KINDs])
 AC_LANG_PUSH([Fortran])
 pack_int_sizeof=""
-rm -f pac_fconftest.out
 
 for kind in `echo $pac_validIntKinds | sed -e 's/,/ /g'`; do
   AC_LANG_CONFTEST([
       AC_LANG_SOURCE([
                 PROGRAM main
                 USE ISO_C_BINDING
+                USE ISO_FORTRAN_ENV, ONLY : stderr=>ERROR_UNIT
                 IMPLICIT NONE
                 INTEGER (KIND=$kind) a
-                OPEN(8, FILE='pac_fconftest.out', FORM='formatted')
-                WRITE(8,'(I0)') $FC_SIZEOF_A
-                CLOSE(8)
+                WRITE(stderr,'(I0)') $FC_SIZEOF_A
                 END
             ])
         ])
         AC_RUN_IFELSE([],[
-            if test -s pac_fconftest.out ; then
-                sizes="`cat pac_fconftest.out`"
-                pack_int_sizeof="$pack_int_sizeof $sizes,"
-            else
-                AC_MSG_ERROR([No output from Fortran test program!])
-            fi
-            rm -f pac_fconftest.out
+            sizes=$(./conftest$EXEEXT 2>&1)
+            pack_int_sizeof="$pack_int_sizeof $sizes,"
         ],[
             AC_MSG_ERROR([Fortran program fails to build or run!])
         ],[
@@ -392,22 +376,16 @@ for kind in `echo  $pac_validRealKinds | sed -e 's/,/ /g'`; do
       AC_LANG_SOURCE([
                 PROGRAM main
                 USE ISO_C_BINDING
+                USE ISO_FORTRAN_ENV, ONLY : stderr=>ERROR_UNIT
                 IMPLICIT NONE
                 REAL (KIND=$kind) :: a
-                OPEN(8, FILE='pac_fconftest.out', FORM='formatted')
-                WRITE(8,'(I0)') $FC_SIZEOF_A
-                CLOSE(8)
+                WRITE(stderr,'(I0)') $FC_SIZEOF_A
                 END
             ])
         ])
         AC_RUN_IFELSE([],[
-            if test -s pac_fconftest.out ; then
-                sizes="`cat pac_fconftest.out`"
-                pack_real_sizeof="$pack_real_sizeof $sizes,"
-            else
-                AC_MSG_ERROR([No output from Fortran test program!])
-            fi
-            rm -f pac_fconftest.out
+            sizes=$(./conftest$EXEEXT 2>&1)
+            pack_real_sizeof="$pack_real_sizeof $sizes,"
         ],[
             AC_MSG_ERROR([Fortran program fails to build or run!])
         ],[
@@ -429,33 +407,27 @@ rm -f pac_fconftest.out
       AC_LANG_SOURCE([
                 PROGRAM main
                 USE ISO_C_BINDING
+                USE ISO_FORTRAN_ENV, ONLY : stderr=>ERROR_UNIT
                 IMPLICIT NONE
                 INTEGER a
                 REAL b
                 DOUBLE PRECISION c
-                OPEN(8, FILE='pac_fconftest.out', FORM='formatted')
-                WRITE(8,*) $FC_SIZEOF_A
-	        WRITE(8,*) KIND(a)
-	        WRITE(8,*) $FC_SIZEOF_B
-	        WRITE(8,*) KIND(b)
-                WRITE(8,*) $FC_SIZEOF_C
-                WRITE(8,*) KIND(c)
-                CLOSE(8)
+                WRITE(stderr,*) $FC_SIZEOF_A
+                WRITE(stderr,*) KIND(a)
+                WRITE(stderr,*) $FC_SIZEOF_B
+                WRITE(stderr,*) KIND(b)
+                WRITE(stderr,*) $FC_SIZEOF_C
+                WRITE(stderr,*) KIND(c)
                 END
             ])
         ])
         AC_RUN_IFELSE([],[
-            if test -s pac_fconftest.out ; then
-                PAC_FORTRAN_NATIVE_INTEGER_SIZEOF="`sed -n '1p' pac_fconftest.out`"
-                PAC_FORTRAN_NATIVE_INTEGER_KIND="`sed -n '2p' pac_fconftest.out`"
-                PAC_FORTRAN_NATIVE_REAL_SIZEOF="`sed -n '3p' pac_fconftest.out`"
-                PAC_FORTRAN_NATIVE_REAL_KIND="`sed -n '4p' pac_fconftest.out`"
-                PAC_FORTRAN_NATIVE_DOUBLE_SIZEOF="`sed -n '5p' pac_fconftest.out`"
-                PAC_FORTRAN_NATIVE_DOUBLE_KIND="`sed -n '6p' pac_fconftest.out`"
-            else
-                AC_MSG_ERROR([No output from Fortran test program!])
-            fi
-            rm -f pac_fconftest.out
+            PAC_FORTRAN_NATIVE_INTEGER_SIZEOF=$(./conftest$EXEEXT 2>&1 | sed -n '1p')
+            PAC_FORTRAN_NATIVE_INTEGER_KIND=$(./conftest$EXEEXT 2>&1 | sed -n '2p')
+            PAC_FORTRAN_NATIVE_REAL_SIZEOF=$(./conftest$EXEEXT 2>&1 | sed -n '3p')
+            PAC_FORTRAN_NATIVE_REAL_KIND=$(./conftest$EXEEXT 2>&1 | sed -n '4p')
+            PAC_FORTRAN_NATIVE_DOUBLE_SIZEOF=$(./conftest$EXEEXT 2>&1 | sed -n '5p')
+            PAC_FORTRAN_NATIVE_DOUBLE_KIND=$(./conftest$EXEEXT 2>&1 | sed -n '6p')
         ],[
             AC_MSG_ERROR([Fortran program fails to build or run!])
         ],[
@@ -467,7 +439,6 @@ AC_LANG_POP([Fortran])
 
 AC_DEFUN([PAC_FC_LDBL_DIG],[
 AC_MSG_CHECKING([maximum decimal precision for C])
-rm -f pac_Cconftest.out
   AC_LANG_CONFTEST([
       AC_LANG_PROGRAM([
                 #include <float.h>
@@ -486,24 +457,17 @@ rm -f pac_Cconftest.out
                 #define C_FLT128_DIG 0
                 #endif
                 #if defined (__STDC_VERSION__) && __STDC_VERSION__ >= 199901L
-                #define C_LDBL_DIG DECIMAL_DIG 
+                #define C_LDBL_DIG DECIMAL_DIG
                 #else
                 #define C_LDBL_DIG LDBL_DIG
                 #endif
                 ],[[
-                  FILE * pFile;
-                  pFile = fopen("pac_Cconftest.out","w");
-                  fprintf(pFile, "%d\n%d\n", C_LDBL_DIG, C_FLT128_DIG);
+                  fprintf(stderr, "%d\n%d\n", C_LDBL_DIG, C_FLT128_DIG);
                 ]])
         ])
         AC_RUN_IFELSE([],[
-            if test -s pac_Cconftest.out ; then
-	        LDBL_DIG="`sed -n '1p' pac_Cconftest.out`" 
-	        FLT128_DIG="`sed -n '2p' pac_Cconftest.out`"
-            else
-                AC_MSG_ERROR([No output from C decimal precision program!])
-            fi
-            rm -f pac_Cconftest.out
+            LDBL_DIG=$(./conftest$EXEEXT 2>&1 | sed -n '1p')
+            FLT128_DIG=$(./conftest$EXEEXT 2>&1 | sed -n '2p')
         ],[
             AC_MSG_ERROR([C program fails to build or run!])
         ],[])