--- /dev/null	Thu Jan 01 00:00:00 1970 +0000
+++ b/gcc/fortran/libgfortran.h	Fri Oct 27 22:46:09 2017 +0900
@@ -0,0 +1,170 @@
+/* Header file to the Fortran front-end and runtime library
+   Copyright (C) 2007-2017 Free Software Foundation, Inc.
+
+This file is part of GCC.
+
+GCC is free software; you can redistribute it and/or modify it under
+the terms of the GNU General Public License as published by the Free
+Software Foundation; either version 3, or (at your option) any later
+version.
+
+GCC is distributed in the hope that it will be useful, but WITHOUT ANY
+WARRANTY; without even the implied warranty of MERCHANTABILITY or
+FITNESS FOR A PARTICULAR PURPOSE.  See the GNU General Public License
+for more details.
+
+You should have received a copy of the GNU General Public License
+along with GCC; see the file COPYING3.  If not see
+<http://www.gnu.org/licenses/>.  */
+
+
+/* Flags to specify which standard/extension contains a feature.
+   Note that no features were obsoleted nor deleted in F2003.
+   Please remember to keep those definitions in sync with
+   gfortran.texi.  */
+/* For now, use F2015 = GFC_STD_GNU.  */
+#define GFC_STD_F2015	        (1<<5)	/* PLACEHOLDER for Fortran 2015.  */
+#define GFC_STD_F2008_TS	(1<<9)	/* POST-F2008 technical reports.  */
+#define GFC_STD_F2008_OBS	(1<<8)	/* Obsolescent in F2008.  */
+#define GFC_STD_F2008		(1<<7)	/* New in F2008.  */
+#define GFC_STD_LEGACY		(1<<6)	/* Backward compatibility.  */
+#define GFC_STD_GNU		(1<<5)	/* GNU Fortran extension.  */
+#define GFC_STD_F2003		(1<<4)	/* New in F2003.  */
+#define GFC_STD_F95		(1<<3)	/* New in F95.  */
+#define GFC_STD_F95_DEL		(1<<2)	/* Deleted in F95.  */
+#define GFC_STD_F95_OBS		(1<<1)	/* Obsolescent in F95.  */
+#define GFC_STD_F77		(1<<0)	/* Included in F77, but not deleted or
+					   obsolescent in later standards.  */
+
+
+/* Bitmasks for the various FPE that can be enabled.  These need to be straight integers
+   e.g., 8 instead of (1<<3), because they will be included in Fortran source.  */
+#define GFC_FPE_INVALID      1
+#define GFC_FPE_DENORMAL     2
+#define GFC_FPE_ZERO         4
+#define GFC_FPE_OVERFLOW     8
+#define GFC_FPE_UNDERFLOW   16
+#define GFC_FPE_INEXACT     32
+
+/* Defines for floating-point rounding modes.  */
+#define GFC_FPE_DOWNWARD   1
+#define GFC_FPE_TONEAREST  2
+#define GFC_FPE_TOWARDZERO 3
+#define GFC_FPE_UPWARD     4
+
+/* Size of the buffer required to store FPU state for any target.
+   In particular, this has to be larger than fenv_t on all glibc targets.
+   Currently, the winner is x86_64 with 32 bytes.  */
+#define GFC_FPE_STATE_BUFFER_SIZE 32
+
+/* Bitmasks for the various runtime checks that can be enabled.  */
+#define GFC_RTCHECK_BOUNDS      (1<<0)
+#define GFC_RTCHECK_ARRAY_TEMPS (1<<1)
+#define GFC_RTCHECK_RECURSION   (1<<2)
+#define GFC_RTCHECK_DO          (1<<3)
+#define GFC_RTCHECK_POINTER     (1<<4)
+#define GFC_RTCHECK_MEM         (1<<5)
+#define GFC_RTCHECK_ALL        (GFC_RTCHECK_BOUNDS | GFC_RTCHECK_ARRAY_TEMPS \
+				| GFC_RTCHECK_RECURSION | GFC_RTCHECK_DO \
+				| GFC_RTCHECK_POINTER | GFC_RTCHECK_MEM)
+
+/* Special unit numbers used to convey certain conditions.  Numbers -4
+   thru -9 available.  NEWUNIT values start at -10.  */
+#define GFC_INTERNAL_UNIT  -1    /* KIND=1 Internal Unit.  */
+#define GFC_INTERNAL_UNIT4 -2    /* KIND=4 Internal Unit.  */
+#define GFC_INVALID_UNIT   -3
+
+/* Possible values for the CONVERT I/O specifier.  */
+/* Keep in sync with GFC_FLAG_CONVERT_* in gcc/flags.h.  */
+typedef enum
+{
+  GFC_CONVERT_NONE = -1,
+  GFC_CONVERT_NATIVE = 0,
+  GFC_CONVERT_SWAP,
+  GFC_CONVERT_BIG,
+  GFC_CONVERT_LITTLE
+}
+unit_convert;
+
+
+/* Runtime errors.  */
+typedef enum
+{
+  LIBERROR_FIRST = -3,		/* Marker for the first error.  */
+  LIBERROR_EOR = -2,		/* End of record, must be negative.  */
+  LIBERROR_END = -1,		/* End of file, must be negative.  */
+  LIBERROR_OK = 0,		/* Indicates success, must be zero.  */
+  LIBERROR_OS = 5000,		/* OS error, more info in errno.  */
+  LIBERROR_OPTION_CONFLICT,
+  LIBERROR_BAD_OPTION,
+  LIBERROR_MISSING_OPTION,
+  LIBERROR_ALREADY_OPEN,
+  LIBERROR_BAD_UNIT,
+  LIBERROR_FORMAT,
+  LIBERROR_BAD_ACTION,
+  LIBERROR_ENDFILE,
+  LIBERROR_BAD_US,
+  LIBERROR_READ_VALUE,
+  LIBERROR_READ_OVERFLOW,
+  LIBERROR_INTERNAL,
+  LIBERROR_INTERNAL_UNIT,
+  LIBERROR_ALLOCATION,
+  LIBERROR_DIRECT_EOR,
+  LIBERROR_SHORT_RECORD,
+  LIBERROR_CORRUPT_FILE,
+  LIBERROR_INQUIRE_INTERNAL_UNIT, /* Must be different from STAT_STOPPED_IMAGE.  */
+  LIBERROR_LAST			/* Not a real error, the last error # + 1.  */
+}
+libgfortran_error_codes;
+
+/* Must kept in sync with libgfortran/caf/libcaf.h.  */
+typedef enum
+{
+  GFC_STAT_UNLOCKED = 0,
+  GFC_STAT_LOCKED,
+  GFC_STAT_LOCKED_OTHER_IMAGE,
+  GFC_STAT_STOPPED_IMAGE = 6000, /* See LIBERROR_INQUIRE_INTERNAL_UNIT above. */
+  GFC_STAT_FAILED_IMAGE  = 6001
+}
+libgfortran_stat_codes;
+
+typedef enum
+{
+  GFC_CAF_ATOMIC_ADD = 1,
+  GFC_CAF_ATOMIC_AND,
+  GFC_CAF_ATOMIC_OR,
+  GFC_CAF_ATOMIC_XOR
+} libcaf_atomic_codes;
+
+
+/* For CO_REDUCE.  */
+#define GFC_CAF_BYREF      (1<<0)
+#define GFC_CAF_HIDDENLEN  (1<<1)
+#define GFC_CAF_ARG_VALUE  (1<<2)
+#define GFC_CAF_ARG_DESC   (1<<3)
+
+
+/* Default unit number for preconnected standard input and output.  */
+#define GFC_STDIN_UNIT_NUMBER 5
+#define GFC_STDOUT_UNIT_NUMBER 6
+#define GFC_STDERR_UNIT_NUMBER 0
+
+
+/* FIXME: Increase to 15 for Fortran 2008. Also needs changes to
+   GFC_DTYPE_RANK_MASK. See PR 36825.  */
+#define GFC_MAX_DIMENSIONS 7
+
+#define GFC_DTYPE_RANK_MASK 0x07
+#define GFC_DTYPE_TYPE_SHIFT 3
+#define GFC_DTYPE_TYPE_MASK 0x38
+#define GFC_DTYPE_SIZE_SHIFT 6
+
+/* Basic types.  BT_VOID is used by ISO C Binding so funcs like c_f_pointer
+   can take any arg with the pointer attribute as a param.  These are also
+   used in the run-time library for IO.  */
+typedef enum
+{ BT_UNKNOWN = 0, BT_INTEGER, BT_LOGICAL, BT_REAL, BT_COMPLEX,
+  BT_DERIVED, BT_CHARACTER, BT_CLASS, BT_PROCEDURE, BT_HOLLERITH, BT_VOID,
+  BT_ASSUMED, BT_UNION
+}
+bt;