--- /dev/null
+From bd705da12e244dda18474a54a2942591e5ef5148 Mon Sep 17 00:00:00 2001
+From: =?UTF-8?q?Tim=20R=C3=BChsen?= <tim.ruehsen@gmx.de>
+Date: Wed, 1 Feb 2017 10:44:36 +0100
+Subject: [PATCH] Update intprops.h for gcc-7 compatibility
+
+[Backport from upstream commit 230930b3bc3e431b819eb45420cb42475d83ca93.]
+Signed-off-by: Thomas Petazzoni <thomas.petazzoni@free-electrons.com>
+---
+ gl/intprops.h | 65 ++++++++++++++++++++++++++++++--------------------
+ lib/gltests/intprops.h | 65 ++++++++++++++++++++++++++++++--------------------
+ 2 files changed, 78 insertions(+), 52 deletions(-)
+
+diff --git a/gl/intprops.h b/gl/intprops.h
+index e1fce5c9..eb06b691 100644
+--- a/gl/intprops.h
++++ b/gl/intprops.h
+@@ -1,18 +1,18 @@
+ /* intprops.h -- properties of integer types
+
+- Copyright (C) 2001-2016 Free Software Foundation, Inc.
++ Copyright (C) 2001-2017 Free Software Foundation, Inc.
+
+ This program 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 of the License, or
++ under the terms of the GNU Lesser General Public License as published
++ by the Free Software Foundation; either version 2.1 of the License, or
+ (at your option) any later version.
+
+ This program 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.
++ GNU Lesser General Public License for more details.
+
+- You should have received a copy of the GNU General Public License
++ You should have received a copy of the GNU Lesser General Public License
+ along with this program. If not, see <http://www.gnu.org/licenses/>. */
+
+ /* Written by Paul Eggert. */
+@@ -47,12 +47,16 @@
+
+ /* Minimum and maximum values for integer types and expressions. */
+
++/* The width in bits of the integer type or expression T.
++ Padding bits are not supported; this is checked at compile-time below. */
++#define TYPE_WIDTH(t) (sizeof (t) * CHAR_BIT)
++
+ /* The maximum and minimum values for the integer type T. */
+ #define TYPE_MINIMUM(t) ((t) ~ TYPE_MAXIMUM (t))
+ #define TYPE_MAXIMUM(t) \
+ ((t) (! TYPE_SIGNED (t) \
+ ? (t) -1 \
+- : ((((t) 1 << (sizeof (t) * CHAR_BIT - 2)) - 1) * 2 + 1)))
++ : ((((t) 1 << (TYPE_WIDTH (t) - 2)) - 1) * 2 + 1)))
+
+ /* The maximum and minimum values for the type of the expression E,
+ after integer promotion. E should not have side effects. */
+@@ -65,7 +69,13 @@
+ ? _GL_SIGNED_INT_MAXIMUM (e) \
+ : _GL_INT_NEGATE_CONVERT (e, 1))
+ #define _GL_SIGNED_INT_MAXIMUM(e) \
+- (((_GL_INT_CONVERT (e, 1) << (sizeof ((e) + 0) * CHAR_BIT - 2)) - 1) * 2 + 1)
++ (((_GL_INT_CONVERT (e, 1) << (TYPE_WIDTH ((e) + 0) - 2)) - 1) * 2 + 1)
++
++/* Work around OpenVMS incompatibility with C99. */
++#if !defined LLONG_MAX && defined __INT64_MAX
++# define LLONG_MAX __INT64_MAX
++# define LLONG_MIN __INT64_MIN
++#endif
+
+ /* This include file assumes that signed types are two's complement without
+ padding bits; the above macros have undefined behavior otherwise.
+@@ -84,10 +94,15 @@ verify (TYPE_MAXIMUM (long int) == LONG_MAX);
+ verify (TYPE_MINIMUM (long long int) == LLONG_MIN);
+ verify (TYPE_MAXIMUM (long long int) == LLONG_MAX);
+ #endif
++/* Similarly, sanity-check one ISO/IEC TS 18661-1:2014 macro if defined. */
++#ifdef UINT_WIDTH
++verify (TYPE_WIDTH (unsigned int) == UINT_WIDTH);
++#endif
+
+ /* Does the __typeof__ keyword work? This could be done by
+ 'configure', but for now it's easier to do it by hand. */
+-#if (2 <= __GNUC__ || defined __IBM__TYPEOF__ \
++#if (2 <= __GNUC__ \
++ || (1210 <= __IBMC__ && defined __IBM__TYPEOF__) \
+ || (0x5110 <= __SUNPRO_C && !__STDC__))
+ # define _GL_HAVE___TYPEOF__ 1
+ #else
+@@ -116,8 +131,7 @@ verify (TYPE_MAXIMUM (long long int) == LLONG_MAX);
+ signed, this macro may overestimate the true bound by one byte when
+ applied to unsigned types of size 2, 4, 16, ... bytes. */
+ #define INT_STRLEN_BOUND(t) \
+- (INT_BITS_STRLEN_BOUND (sizeof (t) * CHAR_BIT \
+- - _GL_SIGNED_TYPE_OR_EXPR (t)) \
++ (INT_BITS_STRLEN_BOUND (TYPE_WIDTH (t) - _GL_SIGNED_TYPE_OR_EXPR (t)) \
+ + _GL_SIGNED_TYPE_OR_EXPR (t))
+
+ /* Bound on buffer size needed to represent an integer type or expression T,
+@@ -222,20 +236,23 @@ verify (TYPE_MAXIMUM (long long int) == LLONG_MAX);
+ ? (a) < (min) >> (b) \
+ : (max) >> (b) < (a))
+
+-/* True if __builtin_add_overflow (A, B, P) works when P is null. */
+-#define _GL_HAS_BUILTIN_OVERFLOW_WITH_NULL (7 <= __GNUC__)
++/* True if __builtin_add_overflow (A, B, P) works when P is non-null. */
++#define _GL_HAS_BUILTIN_OVERFLOW (5 <= __GNUC__)
++
++/* True if __builtin_add_overflow_p (A, B, C) works. */
++#define _GL_HAS_BUILTIN_OVERFLOW_P (7 <= __GNUC__)
+
+ /* The _GL*_OVERFLOW macros have the same restrictions as the
+ *_RANGE_OVERFLOW macros, except that they do not assume that operands
+ (e.g., A and B) have the same type as MIN and MAX. Instead, they assume
+ that the result (e.g., A + B) has that type. */
+-#if _GL_HAS_BUILTIN_OVERFLOW_WITH_NULL
+-# define _GL_ADD_OVERFLOW(a, b, min, max)
+- __builtin_add_overflow (a, b, (__typeof__ ((a) + (b)) *) 0)
+-# define _GL_SUBTRACT_OVERFLOW(a, b, min, max)
+- __builtin_sub_overflow (a, b, (__typeof__ ((a) - (b)) *) 0)
+-# define _GL_MULTIPLY_OVERFLOW(a, b, min, max)
+- __builtin_mul_overflow (a, b, (__typeof__ ((a) * (b)) *) 0)
++#if _GL_HAS_BUILTIN_OVERFLOW_P
++# define _GL_ADD_OVERFLOW(a, b, min, max) \
++ __builtin_add_overflow_p (a, b, (__typeof__ ((a) + (b))) 0)
++# define _GL_SUBTRACT_OVERFLOW(a, b, min, max) \
++ __builtin_sub_overflow_p (a, b, (__typeof__ ((a) - (b))) 0)
++# define _GL_MULTIPLY_OVERFLOW(a, b, min, max) \
++ __builtin_mul_overflow_p (a, b, (__typeof__ ((a) * (b))) 0)
+ #else
+ # define _GL_ADD_OVERFLOW(a, b, min, max) \
+ ((min) < 0 ? INT_ADD_RANGE_OVERFLOW (a, b, min, max) \
+@@ -315,7 +332,7 @@ verify (TYPE_MAXIMUM (long long int) == LLONG_MAX);
+ _GL_BINARY_OP_OVERFLOW (a, b, _GL_ADD_OVERFLOW)
+ #define INT_SUBTRACT_OVERFLOW(a, b) \
+ _GL_BINARY_OP_OVERFLOW (a, b, _GL_SUBTRACT_OVERFLOW)
+-#if _GL_HAS_BUILTIN_OVERFLOW_WITH_NULL
++#if _GL_HAS_BUILTIN_OVERFLOW_P
+ # define INT_NEGATE_OVERFLOW(a) INT_SUBTRACT_OVERFLOW (0, a)
+ #else
+ # define INT_NEGATE_OVERFLOW(a) \
+@@ -349,10 +366,6 @@ verify (TYPE_MAXIMUM (long long int) == LLONG_MAX);
+ #define INT_MULTIPLY_WRAPV(a, b, r) \
+ _GL_INT_OP_WRAPV (a, b, r, *, __builtin_mul_overflow, INT_MULTIPLY_OVERFLOW)
+
+-#ifndef __has_builtin
+-# define __has_builtin(x) 0
+-#endif
+-
+ /* Nonzero if this compiler has GCC bug 68193 or Clang bug 25390. See:
+ https://gcc.gnu.org/bugzilla/show_bug.cgi?id=68193
+ https://llvm.org/bugs/show_bug.cgi?id=25390
+@@ -369,7 +382,7 @@ verify (TYPE_MAXIMUM (long long int) == LLONG_MAX);
+ the operation. BUILTIN is the builtin operation, and OVERFLOW the
+ overflow predicate. Return 1 if the result overflows. See above
+ for restrictions. */
+-#if 5 <= __GNUC__ || __has_builtin (__builtin_add_overflow)
++#if _GL_HAS_BUILTIN_OVERFLOW
+ # define _GL_INT_OP_WRAPV(a, b, r, op, builtin, overflow) builtin (a, b, r)
+ #elif 201112 <= __STDC_VERSION__ && !_GL__GENERIC_BOGUS
+ # define _GL_INT_OP_WRAPV(a, b, r, op, builtin, overflow) \
+@@ -412,7 +425,7 @@ verify (TYPE_MAXIMUM (long long int) == LLONG_MAX);
+ # else
+ # define _GL_INT_OP_WRAPV_LONGISH(a, b, r, op, overflow) \
+ _GL_INT_OP_CALC (a, b, r, op, overflow, unsigned long int, \
+- long int, LONG_MIN, LONG_MAX))
++ long int, LONG_MIN, LONG_MAX)
+ # endif
+ #endif
+
+diff --git a/lib/gltests/intprops.h b/lib/gltests/intprops.h
+index e1fce5c9..eb06b691 100644
+--- a/lib/gltests/intprops.h
++++ b/lib/gltests/intprops.h
+@@ -1,18 +1,18 @@
+ /* intprops.h -- properties of integer types
+
+- Copyright (C) 2001-2016 Free Software Foundation, Inc.
++ Copyright (C) 2001-2017 Free Software Foundation, Inc.
+
+ This program 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 of the License, or
++ under the terms of the GNU Lesser General Public License as published
++ by the Free Software Foundation; either version 2.1 of the License, or
+ (at your option) any later version.
+
+ This program 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.
++ GNU Lesser General Public License for more details.
+
+- You should have received a copy of the GNU General Public License
++ You should have received a copy of the GNU Lesser General Public License
+ along with this program. If not, see <http://www.gnu.org/licenses/>. */
+
+ /* Written by Paul Eggert. */
+@@ -47,12 +47,16 @@
+
+ /* Minimum and maximum values for integer types and expressions. */
+
++/* The width in bits of the integer type or expression T.
++ Padding bits are not supported; this is checked at compile-time below. */
++#define TYPE_WIDTH(t) (sizeof (t) * CHAR_BIT)
++
+ /* The maximum and minimum values for the integer type T. */
+ #define TYPE_MINIMUM(t) ((t) ~ TYPE_MAXIMUM (t))
+ #define TYPE_MAXIMUM(t) \
+ ((t) (! TYPE_SIGNED (t) \
+ ? (t) -1 \
+- : ((((t) 1 << (sizeof (t) * CHAR_BIT - 2)) - 1) * 2 + 1)))
++ : ((((t) 1 << (TYPE_WIDTH (t) - 2)) - 1) * 2 + 1)))
+
+ /* The maximum and minimum values for the type of the expression E,
+ after integer promotion. E should not have side effects. */
+@@ -65,7 +69,13 @@
+ ? _GL_SIGNED_INT_MAXIMUM (e) \
+ : _GL_INT_NEGATE_CONVERT (e, 1))
+ #define _GL_SIGNED_INT_MAXIMUM(e) \
+- (((_GL_INT_CONVERT (e, 1) << (sizeof ((e) + 0) * CHAR_BIT - 2)) - 1) * 2 + 1)
++ (((_GL_INT_CONVERT (e, 1) << (TYPE_WIDTH ((e) + 0) - 2)) - 1) * 2 + 1)
++
++/* Work around OpenVMS incompatibility with C99. */
++#if !defined LLONG_MAX && defined __INT64_MAX
++# define LLONG_MAX __INT64_MAX
++# define LLONG_MIN __INT64_MIN
++#endif
+
+ /* This include file assumes that signed types are two's complement without
+ padding bits; the above macros have undefined behavior otherwise.
+@@ -84,10 +94,15 @@ verify (TYPE_MAXIMUM (long int) == LONG_MAX);
+ verify (TYPE_MINIMUM (long long int) == LLONG_MIN);
+ verify (TYPE_MAXIMUM (long long int) == LLONG_MAX);
+ #endif
++/* Similarly, sanity-check one ISO/IEC TS 18661-1:2014 macro if defined. */
++#ifdef UINT_WIDTH
++verify (TYPE_WIDTH (unsigned int) == UINT_WIDTH);
++#endif
+
+ /* Does the __typeof__ keyword work? This could be done by
+ 'configure', but for now it's easier to do it by hand. */
+-#if (2 <= __GNUC__ || defined __IBM__TYPEOF__ \
++#if (2 <= __GNUC__ \
++ || (1210 <= __IBMC__ && defined __IBM__TYPEOF__) \
+ || (0x5110 <= __SUNPRO_C && !__STDC__))
+ # define _GL_HAVE___TYPEOF__ 1
+ #else
+@@ -116,8 +131,7 @@ verify (TYPE_MAXIMUM (long long int) == LLONG_MAX);
+ signed, this macro may overestimate the true bound by one byte when
+ applied to unsigned types of size 2, 4, 16, ... bytes. */
+ #define INT_STRLEN_BOUND(t) \
+- (INT_BITS_STRLEN_BOUND (sizeof (t) * CHAR_BIT \
+- - _GL_SIGNED_TYPE_OR_EXPR (t)) \
++ (INT_BITS_STRLEN_BOUND (TYPE_WIDTH (t) - _GL_SIGNED_TYPE_OR_EXPR (t)) \
+ + _GL_SIGNED_TYPE_OR_EXPR (t))
+
+ /* Bound on buffer size needed to represent an integer type or expression T,
+@@ -222,20 +236,23 @@ verify (TYPE_MAXIMUM (long long int) == LLONG_MAX);
+ ? (a) < (min) >> (b) \
+ : (max) >> (b) < (a))
+
+-/* True if __builtin_add_overflow (A, B, P) works when P is null. */
+-#define _GL_HAS_BUILTIN_OVERFLOW_WITH_NULL (7 <= __GNUC__)
++/* True if __builtin_add_overflow (A, B, P) works when P is non-null. */
++#define _GL_HAS_BUILTIN_OVERFLOW (5 <= __GNUC__)
++
++/* True if __builtin_add_overflow_p (A, B, C) works. */
++#define _GL_HAS_BUILTIN_OVERFLOW_P (7 <= __GNUC__)
+
+ /* The _GL*_OVERFLOW macros have the same restrictions as the
+ *_RANGE_OVERFLOW macros, except that they do not assume that operands
+ (e.g., A and B) have the same type as MIN and MAX. Instead, they assume
+ that the result (e.g., A + B) has that type. */
+-#if _GL_HAS_BUILTIN_OVERFLOW_WITH_NULL
+-# define _GL_ADD_OVERFLOW(a, b, min, max)
+- __builtin_add_overflow (a, b, (__typeof__ ((a) + (b)) *) 0)
+-# define _GL_SUBTRACT_OVERFLOW(a, b, min, max)
+- __builtin_sub_overflow (a, b, (__typeof__ ((a) - (b)) *) 0)
+-# define _GL_MULTIPLY_OVERFLOW(a, b, min, max)
+- __builtin_mul_overflow (a, b, (__typeof__ ((a) * (b)) *) 0)
++#if _GL_HAS_BUILTIN_OVERFLOW_P
++# define _GL_ADD_OVERFLOW(a, b, min, max) \
++ __builtin_add_overflow_p (a, b, (__typeof__ ((a) + (b))) 0)
++# define _GL_SUBTRACT_OVERFLOW(a, b, min, max) \
++ __builtin_sub_overflow_p (a, b, (__typeof__ ((a) - (b))) 0)
++# define _GL_MULTIPLY_OVERFLOW(a, b, min, max) \
++ __builtin_mul_overflow_p (a, b, (__typeof__ ((a) * (b))) 0)
+ #else
+ # define _GL_ADD_OVERFLOW(a, b, min, max) \
+ ((min) < 0 ? INT_ADD_RANGE_OVERFLOW (a, b, min, max) \
+@@ -315,7 +332,7 @@ verify (TYPE_MAXIMUM (long long int) == LLONG_MAX);
+ _GL_BINARY_OP_OVERFLOW (a, b, _GL_ADD_OVERFLOW)
+ #define INT_SUBTRACT_OVERFLOW(a, b) \
+ _GL_BINARY_OP_OVERFLOW (a, b, _GL_SUBTRACT_OVERFLOW)
+-#if _GL_HAS_BUILTIN_OVERFLOW_WITH_NULL
++#if _GL_HAS_BUILTIN_OVERFLOW_P
+ # define INT_NEGATE_OVERFLOW(a) INT_SUBTRACT_OVERFLOW (0, a)
+ #else
+ # define INT_NEGATE_OVERFLOW(a) \
+@@ -349,10 +366,6 @@ verify (TYPE_MAXIMUM (long long int) == LLONG_MAX);
+ #define INT_MULTIPLY_WRAPV(a, b, r) \
+ _GL_INT_OP_WRAPV (a, b, r, *, __builtin_mul_overflow, INT_MULTIPLY_OVERFLOW)
+
+-#ifndef __has_builtin
+-# define __has_builtin(x) 0
+-#endif
+-
+ /* Nonzero if this compiler has GCC bug 68193 or Clang bug 25390. See:
+ https://gcc.gnu.org/bugzilla/show_bug.cgi?id=68193
+ https://llvm.org/bugs/show_bug.cgi?id=25390
+@@ -369,7 +382,7 @@ verify (TYPE_MAXIMUM (long long int) == LLONG_MAX);
+ the operation. BUILTIN is the builtin operation, and OVERFLOW the
+ overflow predicate. Return 1 if the result overflows. See above
+ for restrictions. */
+-#if 5 <= __GNUC__ || __has_builtin (__builtin_add_overflow)
++#if _GL_HAS_BUILTIN_OVERFLOW
+ # define _GL_INT_OP_WRAPV(a, b, r, op, builtin, overflow) builtin (a, b, r)
+ #elif 201112 <= __STDC_VERSION__ && !_GL__GENERIC_BOGUS
+ # define _GL_INT_OP_WRAPV(a, b, r, op, builtin, overflow) \
+@@ -412,7 +425,7 @@ verify (TYPE_MAXIMUM (long long int) == LLONG_MAX);
+ # else
+ # define _GL_INT_OP_WRAPV_LONGISH(a, b, r, op, overflow) \
+ _GL_INT_OP_CALC (a, b, r, op, overflow, unsigned long int, \
+- long int, LONG_MIN, LONG_MAX))
++ long int, LONG_MIN, LONG_MAX)
+ # endif
+ #endif
+
+--
+2.13.6
+
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