libidn: gcc-7 compatibility

1 files changed, 1034 insertions, 7 deletions

diff --git a/src/libidn-1-fixes.patch b/src/libidn-1-fixes.patch
index 33d6734..5a5401c 100644
--- a/src/libidn-1-fixes.patch
+++ b/src/libidn-1-fixes.patch
@@ -1,15 +1,13 @@
 This file is part of MXE. See LICENSE.md for licensing information.
 
-Contains ad hoc patches for cross building.
-
-From 2d8680323de1e709bfec5194db0119a7395ab78a Mon Sep 17 00:00:00 2001
-From: MXE
+From 6c79d4a98dca226b41987ecccd7919b698df597e Mon Sep 17 00:00:00 2001
+From: "a@mxe.org" <a@mxe.org>
 Date: Fri, 25 Nov 2011 15:58:28 +0100
-Subject: [PATCH] fix Libs.private
+Subject: [PATCH 1/4] fix Libs.private
 
 
 diff --git a/libidn.pc.in b/libidn.pc.in
-index a69d5d3..2d36472 100644
+index 74b84be6..629de30a 100644
 --- a/libidn.pc.in
 +++ b/libidn.pc.in
 @@ -19,5 +19,5 @@ Description: IETF stringprep, nameprep, punycode, IDNA text processing.
@@ -20,5 +18,1034 @@ index a69d5d3..2d36472 100644
 +Libs.private: -lintl -liconv
  Cflags: -I${includedir}
 -- 
-1.7.8
+2.11.0
+
+
+From 884d44d1d9752062c86c4dd2bddd8b40d9f80222 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 2/4] Update intprops.h for gcc-7 compatibility
+
+(cherry picked from commit 230930b3bc3e431b819eb45420cb42475d83ca93)
+
+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
+ 
+-- 
+2.11.0
+
+
+From e2cb42d99c6dccb4436bdeb8ecfeb2db9de08f18 Mon Sep 17 00:00:00 2001
+From: =?UTF-8?q?Tim=20R=C3=BChsen?= <tim.ruehsen@gmx.de>
+Date: Wed, 1 Feb 2017 10:45:29 +0100
+Subject: [PATCH 3/4] Increase value for -Wframe-larger-than (gcc-7)
+
+(cherry picked from commit a6fcdb4f953e40ea162a9104cac034bce01706af)
+
+diff --git a/configure.ac b/configure.ac
+index 649ddcd5..c802c5df 100644
+--- a/configure.ac
++++ b/configure.ac
+@@ -128,7 +128,7 @@ AC_ARG_ENABLE([gcc-warnings],
+ 
+ if test "$gl_gcc_warnings" = yes; then
+   gl_WARN_ADD([-Werror], [WERROR_CFLAGS])
+-  gl_WARN_ADD([-Wframe-larger-than=112], [WSTACK_CFLAGS])
++  gl_WARN_ADD([-Wframe-larger-than=160], [WSTACK_CFLAGS])
+ 
+   nw="$nw -Wsystem-headers"         # Don't let system headers trigger warnings
+   nw="$nw -Wpadded"                 # Struct in src/idn_cmd.h is not padded
+-- 
+2.11.0
+
+
+From 94e4faf96e711d10e04fae12c90c1be20e490391 Mon Sep 17 00:00:00 2001
+From: =?UTF-8?q?Tim=20R=C3=BChsen?= <tim.ruehsen@gmx.de>
+Date: Wed, 1 Feb 2017 11:06:39 +0100
+Subject: [PATCH 4/4] Fix -Wformat warnings
+
+(cherry picked from commit 7148adf34dae30345c2e4d9d437838a45ba6f6e8)
+
+diff --git a/examples/example.c b/examples/example.c
+index 6e917838..24f64e04 100644
+--- a/examples/example.c
++++ b/examples/example.c
+@@ -55,7 +55,7 @@ main (void)
+ 
+   printf ("Before locale2utf8 (length %ld): ", (long int) strlen (buf));
+   for (i = 0; i < strlen (buf); i++)
+-    printf ("%02x ", buf[i] & 0xFF);
++    printf ("%02x ", (unsigned) buf[i] & 0xFF);
+   printf ("\n");
+ 
+   p = stringprep_locale_to_utf8 (buf);
+@@ -69,7 +69,7 @@ main (void)
+ 
+   printf ("Before stringprep (length %ld): ", (long int) strlen (buf));
+   for (i = 0; i < strlen (buf); i++)
+-    printf ("%02x ", buf[i] & 0xFF);
++    printf ("%02x ", (unsigned) buf[i] & 0xFF);
+   printf ("\n");
+ 
+   rc = stringprep (buf, BUFSIZ, 0, stringprep_nameprep);
+@@ -79,7 +79,7 @@ main (void)
+     {
+       printf ("After stringprep (length %ld): ", (long int) strlen (buf));
+       for (i = 0; i < strlen (buf); i++)
+-	printf ("%02x ", buf[i] & 0xFF);
++	printf ("%02x ", (unsigned) buf[i] & 0xFF);
+       printf ("\n");
+     }
+ 
+diff --git a/examples/example3.c b/examples/example3.c
+index fc11c1c0..ffb90424 100644
+--- a/examples/example3.c
++++ b/examples/example3.c
+@@ -56,7 +56,7 @@ main (void)
+ 
+   printf ("Read string (length %ld): ", (long int) strlen (buf));
+   for (i = 0; i < strlen (buf); i++)
+-    printf ("%02x ", buf[i] & 0xFF);
++    printf ("%02x ", (unsigned) buf[i] & 0xFF);
+   printf ("\n");
+ 
+   rc = idna_to_ascii_lz (buf, &p, 0);
+@@ -68,7 +68,7 @@ main (void)
+ 
+   printf ("ACE label (length %ld): '%s'\n", (long int) strlen (p), p);
+   for (i = 0; i < strlen (p); i++)
+-    printf ("%02x ", p[i] & 0xFF);
++    printf ("%02x ", (unsigned) p[i] & 0xFF);
+   printf ("\n");
+ 
+   free (p);
+diff --git a/examples/example4.c b/examples/example4.c
+index 1b319c94..a3315a14 100644
+--- a/examples/example4.c
++++ b/examples/example4.c
+@@ -56,7 +56,7 @@ main (void)
+ 
+   printf ("Read string (length %ld): ", (long int) strlen (buf));
+   for (i = 0; i < strlen (buf); i++)
+-    printf ("%02x ", buf[i] & 0xFF);
++    printf ("%02x ", (unsigned) buf[i] & 0xFF);
+   printf ("\n");
+ 
+   rc = idna_to_unicode_lzlz (buf, &p, 0);
+@@ -68,7 +68,7 @@ main (void)
+ 
+   printf ("ACE label (length %ld): '%s'\n", (long int) strlen (p), p);
+   for (i = 0; i < strlen (p); i++)
+-    printf ("%02x ", p[i] & 0xFF);
++    printf ("%02x ", (unsigned) p[i] & 0xFF);
+   printf ("\n");
+ 
+   free (p);
+diff --git a/examples/example5.c b/examples/example5.c
+index df557984..29d40b9d 100644
+--- a/examples/example5.c
++++ b/examples/example5.c
+@@ -68,7 +68,7 @@ main (void)
+ 
+   printf ("Read string (length %ld): ", (long int) strlen (buf));
+   for (i = 0; i < strlen (buf); i++)
+-    printf ("%02x ", buf[i] & 0xFF);
++    printf ("%02x ", (unsigned) buf[i] & 0xFF);
+   printf ("\n");
+ 
+   p = stringprep_locale_to_utf8 (buf);
+diff --git a/src/idn.c b/src/idn.c
+index be1c7d1b..13eb3c9c 100644
+--- a/src/idn.c
++++ b/src/idn.c
+@@ -419,7 +419,7 @@ main (int argc, char *argv[])
+ 	      size_t i;
+ 	      for (i = 0; p[i]; i++)
+ 		fprintf (stderr, "output[%lu] = U+%04x\n",
+-			 (unsigned long) i, p[i]);
++			 (unsigned long) i, (unsigned) p[i]);
+ 	    }
+ 
+ 	  fprintf (stdout, "%s\n", p);
+diff --git a/tests/tst_idna.c b/tests/tst_idna.c
+index 415764ee..4ac046fd 100644
+--- a/tests/tst_idna.c
++++ b/tests/tst_idna.c
+@@ -220,13 +220,14 @@ doit (void)
+   char label[100];
+   uint32_t *ucs4label = NULL;
+   uint32_t tmp[100];
+-  size_t len, len2, i;
++  size_t len, len2;
+   int rc;
++  unsigned i;
+ 
+   for (i = 0; i < sizeof (idna) / sizeof (idna[0]); i++)
+     {
+       if (debug)
+-	printf ("IDNA entry %ld: %s\n", i, idna[i].name);
++	printf ("IDNA entry %u: %s\n", i, idna[i].name);
+ 
+       if (debug)
+ 	{
+@@ -237,7 +238,7 @@ doit (void)
+       rc = idna_to_ascii_4i (idna[i].in, idna[i].inlen, label, idna[i].flags);
+       if (rc != idna[i].toasciirc)
+ 	{
+-	  fail ("IDNA entry %ld failed: %d\n", i, rc);
++	  fail ("IDNA entry %u failed: %d\n", i, rc);
+ 	  if (debug)
+ 	    printf ("FATAL\n");
+ 	  continue;
+@@ -256,7 +257,7 @@ doit (void)
+ 	  if (strlen (idna[i].out) != strlen (label) ||
+ 	      strcasecmp (idna[i].out, label) != 0)
+ 	    {
+-	      fail ("IDNA entry %ld failed\n", i);
++	      fail ("IDNA entry %u failed\n", i);
+ 	      if (debug)
+ 		printf ("ERROR\n");
+ 	    }
+@@ -273,8 +274,8 @@ doit (void)
+ 
+       if (debug)
+ 	{
+-	  printf ("in: %s (%ld==%ld)\n", idna[i].out, strlen (idna[i].out),
+-		  len);
++	  printf ("in: %s (%d==%d)\n", idna[i].out, (int) strlen (idna[i].out),
++		  (int) len);
+ 	  ucs4print (ucs4label, len);
+ 	}
+ 
+@@ -282,20 +283,20 @@ doit (void)
+       rc = idna_to_unicode_44i (ucs4label, len, tmp, &len2, idna[i].flags);
+       if (debug)
+ 	{
+-	  printf ("expected out (%ld):\n",
++	  printf ("expected out (%lu):\n",
+ 		  rc == IDNA_SUCCESS ? idna[i].inlen : len);
+ 	  if (rc == IDNA_SUCCESS)
+ 	    ucs4print (idna[i].in, idna[i].inlen);
+ 	  else
+ 	    ucs4print (ucs4label, len);
+ 
+-	  printf ("computed out (%ld):\n", len2);
++	  printf ("computed out (%d):\n", (int) len2);
+ 	  ucs4print (tmp, len2);
+ 	}
+ 
+       if (rc != idna[i].tounicoderc)
+ 	{
+-	  fail ("IDNA entry %ld failed: %d\n", i, rc);
++	  fail ("IDNA entry %u failed: %d\n", i, rc);
+ 	  if (debug)
+ 	    printf ("FATAL\n");
+ 	  continue;
+@@ -309,11 +310,11 @@ doit (void)
+ 	  if (debug)
+ 	    {
+ 	      if (rc == IDNA_SUCCESS)
+-		printf ("len=%ld len2=%ld\n", len2, idna[i].inlen);
++		printf ("len=%d len2=%d\n", (int) len2, (int) idna[i].inlen);
+ 	      else
+-		printf ("len=%ld len2=%ld\n", len, len2);
++		printf ("len=%d len2=%d\n", (int) len, (int) len2);
+ 	    }
+-	  fail ("IDNA entry %ld failed\n", i);
++	  fail ("IDNA entry %u failed\n", i);
+ 	  if (debug)
+ 	    printf ("ERROR\n");
+ 	}
+diff --git a/tests/tst_idna2.c b/tests/tst_idna2.c
+index 65b3a4d8..38932caa 100644
+--- a/tests/tst_idna2.c
++++ b/tests/tst_idna2.c
+@@ -461,14 +461,14 @@ static const struct idna idna[] = {
+ void
+ doit (void)
+ {
+-  size_t i;
++  unsigned i;
+   char *out;
+   int rc;
+ 
+   for (i = 0; i < sizeof (idna) / sizeof (idna[0]); i++)
+     {
+       if (debug)
+-	printf ("IDNA2 entry %ld\n", i);
++	printf ("IDNA2 entry %u\n", i);
+ 
+       if (debug)
+ 	{
+@@ -487,7 +487,7 @@ doit (void)
+ 			     IDNA_USE_STD3_ASCII_RULES);
+       if (rc != IDNA_SUCCESS && strlen (idna[i].out) > 0)
+ 	{
+-	  fail ("IDNA2 entry %ld failed: %d\n", i, rc);
++	  fail ("IDNA2 entry %u failed: %d\n", i, rc);
+ 	  continue;
+ 	}
+ 
+@@ -504,7 +504,7 @@ doit (void)
+ 	  if (strlen (idna[i].out) != strlen (out) ||
+ 	      strcasecmp (idna[i].out, out) != 0)
+ 	    {
+-	      fail ("IDNA2 entry %ld failed\n", i);
++	      fail ("IDNA2 entry %u failed\n", i);
+ 	      if (debug)
+ 		printf ("ERROR\n");
+ 	    }
+diff --git a/tests/tst_idna3.c b/tests/tst_idna3.c
+index a189378f..f65628c1 100644
+--- a/tests/tst_idna3.c
++++ b/tests/tst_idna3.c
+@@ -59,13 +59,13 @@ doit (void)
+ {
+   int rc;
+   char *out = NULL;
+-  size_t i;
++  unsigned i;
+ 
+   for (i = 0; i < sizeof (idna) / sizeof (idna[0]); i++)
+     {
+       rc = idna_to_unicode_8z8z (idna[i].in, &out, 0);
+       if (rc != IDNA_SUCCESS)
+-	fail ("IDNA3[%ld] failed %d\n", i, rc);
++	fail ("IDNA3[%u] failed %d\n", i, rc);
+ 
+       if (debug && rc == IDNA_SUCCESS)
+ 	{
+@@ -75,9 +75,9 @@ doit (void)
+ 	}
+ 
+       if (strcmp (out, idna[i].out) != 0)
+-	fail ("IDNA3[%ld] failed\n", i);
++	fail ("IDNA3[%u] failed\n", i);
+       else if (debug)
+-	printf ("IDNA3[%ld] success\n", i);
++	printf ("IDNA3[%u] success\n", i);
+ 
+       if (out)
+ 	idn_free (out);
+diff --git a/tests/tst_nfkc.c b/tests/tst_nfkc.c
+index d150fecf..f5af9c6a 100644
+--- a/tests/tst_nfkc.c
++++ b/tests/tst_nfkc.c
+@@ -68,18 +68,18 @@ void
+ doit (void)
+ {
+   char *out;
+-  size_t i;
++  unsigned i;
+ 
+   for (i = 0; i < sizeof (nfkc) / sizeof (nfkc[0]); i++)
+     {
+       if (debug)
+-	printf ("NFKC entry %ld\n", i);
++	printf ("NFKC entry %u\n", i);
+ 
+       out = stringprep_utf8_nfkc_normalize (nfkc[i].in,
+ 					    (ssize_t) strlen (nfkc[i].in));
+       if (out == NULL)
+ 	{
+-	  fail ("NFKC entry %ld failed fatally\n", i);
++	  fail ("NFKC entry %u failed fatally\n", i);
+ 	  continue;
+ 	}
+ 
+@@ -114,7 +114,7 @@ doit (void)
+       if (strlen (nfkc[i].out) != strlen (out) ||
+ 	  memcmp (nfkc[i].out, out, strlen (out)) != 0)
+ 	{
+-	  fail ("NFKC entry %ld failed\n", i);
++	  fail ("NFKC entry %u failed\n", i);
+ 	  if (debug)
+ 	    printf ("ERROR\n");
+ 	}
+diff --git a/tests/tst_pr29.c b/tests/tst_pr29.c
+index 3dc5466d..11d0ede1 100644
+--- a/tests/tst_pr29.c
++++ b/tests/tst_pr29.c
+@@ -91,7 +91,7 @@ static const struct tv tv[] = {
+ void
+ doit (void)
+ {
+-  size_t i;
++  unsigned i;
+   int rc;
+ 
+   for (i = 0; i < sizeof (tv) / sizeof (tv[0]); i++)
+@@ -100,7 +100,7 @@ doit (void)
+ 	{
+ 	  uint32_t *p, *q;
+ 
+-	  printf ("PR29 entry %ld: %s\n", i, tv[i].name);
++	  printf ("PR29 entry %u: %s\n", i, tv[i].name);
+ 
+ 	  printf ("in:\n");
+ 	  ucs4print (tv[i].in, tv[i].inlen);
+@@ -120,7 +120,7 @@ doit (void)
+       rc = pr29_4 (tv[i].in, tv[i].inlen);
+       if (rc != tv[i].rc)
+ 	{
+-	  fail ("PR29 entry %ld failed (expected %d): %d\n", i, tv[i].rc, rc);
++	  fail ("PR29 entry %u failed (expected %d): %d\n", i, tv[i].rc, rc);
+ 	  if (debug)
+ 	    printf ("FATAL\n");
+ 	  continue;
+@@ -129,7 +129,7 @@ doit (void)
+       rc = pr29_4z (tv[i].in);
+       if (rc != tv[i].rc)
+ 	{
+-	  fail ("PR29 entry %ld failed (expected %d): %d\n", i, tv[i].rc, rc);
++	  fail ("PR29 entry %u failed (expected %d): %d\n", i, tv[i].rc, rc);
+ 	  if (debug)
+ 	    printf ("FATAL\n");
+ 	  continue;
+@@ -142,7 +142,7 @@ doit (void)
+ 	p = stringprep_ucs4_to_utf8 (tv[i].in, (ssize_t) tv[i].inlen,
+ 				     &items_read, &items_written);
+ 	if (p == NULL)
+-	  fail ("FAIL: stringprep_ucs4_to_utf8(tv[%ld]) == NULL\n", i);
++	  fail ("FAIL: stringprep_ucs4_to_utf8(tv[%u]) == NULL\n", i);
+ 	if (debug)
+ 	  hexprint (p, strlen (p));
+ 
+@@ -150,7 +150,7 @@ doit (void)
+ 	free (p);
+ 	if (rc != tv[i].rc)
+ 	  {
+-	    fail ("PR29 entry %ld failed (expected %d): %d\n",
++	    fail ("PR29 entry %u failed (expected %d): %d\n",
+ 		  i, tv[i].rc, rc);
+ 	    if (debug)
+ 	      printf ("FATAL\n");
+diff --git a/tests/tst_punycode.c b/tests/tst_punycode.c
+index 493b8a21..997744a5 100644
+--- a/tests/tst_punycode.c
++++ b/tests/tst_punycode.c
+@@ -173,7 +173,8 @@ doit (void)
+   char *p;
+   uint32_t *q;
+   int rc;
+-  size_t i, outlen;
++  size_t outlen;
++  unsigned i;
+ 
+   p = malloc (sizeof (*p) * BUFSIZ);
+   if (p == NULL)
+@@ -186,7 +187,7 @@ doit (void)
+   for (i = 0; i < sizeof (punycode) / sizeof (punycode[0]); i++)
+     {
+       if (debug)
+-	printf ("PUNYCODE entry %ld: %s\n", i, punycode[i].name);
++	printf ("PUNYCODE entry %u: %s\n", i, punycode[i].name);
+ 
+       if (debug)
+ 	{
+@@ -199,7 +200,7 @@ doit (void)
+ 			    NULL, &outlen, p);
+       if (rc != punycode[i].rc)
+ 	{
+-	  fail ("punycode_encode() entry %ld failed: %d\n", i, rc);
++	  fail ("punycode_encode() entry %u failed: %d\n", i, rc);
+ 	  if (debug)
+ 	    printf ("FATAL\n");
+ 	  continue;
+@@ -221,7 +222,7 @@ doit (void)
+ 	  if (strlen (punycode[i].out) != strlen (p) ||
+ 	      memcmp (punycode[i].out, p, strlen (p)) != 0)
+ 	    {
+-	      fail ("punycode() entry %ld failed\n", i);
++	      fail ("punycode() entry %u failed\n", i);
+ 	      if (debug)
+ 		printf ("ERROR\n");
+ 	    }
+@@ -241,7 +242,7 @@ doit (void)
+ 			    &outlen, q, NULL);
+       if (rc != punycode[i].rc)
+ 	{
+-	  fail ("punycode() entry %ld failed: %d\n", i, rc);
++	  fail ("punycode() entry %u failed: %d\n", i, rc);
+ 	  if (debug)
+ 	    printf ("FATAL\n");
+ 	  continue;
+@@ -262,7 +263,7 @@ doit (void)
+ 	  if (punycode[i].inlen != outlen ||
+ 	      memcmp (punycode[i].in, q, outlen) != 0)
+ 	    {
+-	      fail ("punycode_decode() entry %ld failed\n", i);
++	      fail ("punycode_decode() entry %u failed\n", i);
+ 	      if (debug)
+ 		printf ("ERROR\n");
+ 	    }
+diff --git a/tests/tst_strerror.c b/tests/tst_strerror.c
+index 71fff59a..730f5e49 100644
+--- a/tests/tst_strerror.c
++++ b/tests/tst_strerror.c
+@@ -110,7 +110,7 @@ doit (void)
+   /* Iterate through all error codes. */
+ 
+   {
+-    size_t i;
++    unsigned i;
+     const char *last_p = NULL;
+ 
+     for (i = 0;; i++)
+@@ -126,13 +126,13 @@ doit (void)
+ 	    break;
+ 	  }
+ 	if (debug)
+-	  printf ("idna %ld: %s\n", i, p);
++	  printf ("idna %u: %s\n", i, p);
+ 	last_p = p;
+       }
+   }
+ 
+   {
+-    size_t i;
++    unsigned i;
+     const char *last_p = NULL;
+ 
+     for (i = 0;; i++)
+@@ -141,13 +141,13 @@ doit (void)
+ 	if (p == last_p)
+ 	  break;
+ 	if (debug)
+-	  printf ("pr29 %ld: %s\n", i, p);
++	  printf ("pr29 %u: %s\n", i, p);
+ 	last_p = p;
+       }
+   }
+ 
+   {
+-    size_t i;
++    unsigned i;
+     const char *last_p = NULL;
+ 
+     for (i = 0;; i++)
+@@ -156,13 +156,13 @@ doit (void)
+ 	if (p == last_p)
+ 	  break;
+ 	if (debug)
+-	  printf ("punycode %ld: %s\n", i, p);
++	  printf ("punycode %u: %s\n", i, p);
+ 	last_p = p;
+       }
+   }
+ 
+   {
+-    size_t i;
++    unsigned i;
+     const char *last_p = NULL;
+ 
+     for (i = 0;; i++)
+@@ -183,13 +183,13 @@ doit (void)
+ 	    break;
+ 	  }
+ 	if (debug)
+-	  printf ("stringprep %ld: %s\n", i, p);
++	  printf ("stringprep %u: %s\n", i, p);
+ 	last_p = p;
+       }
+   }
+ 
+   {
+-    size_t i;
++    unsigned i;
+     const char *last_p = NULL;
+ 
+     for (i = 0;; i++)
+@@ -198,7 +198,7 @@ doit (void)
+ 	if (p == last_p)
+ 	  break;
+ 	if (debug)
+-	  printf ("tld %ld: %s\n", i, p);
++	  printf ("tld %u: %s\n", i, p);
+ 	last_p = p;
+       }
+   }
+diff --git a/tests/tst_stringprep.c b/tests/tst_stringprep.c
+index 149ce6f5..7c9ab06e 100644
+--- a/tests/tst_stringprep.c
++++ b/tests/tst_stringprep.c
+@@ -205,7 +205,7 @@ doit (void)
+ {
+   char *p;
+   int rc;
+-  size_t i;
++  unsigned i;
+ 
+   if (!stringprep_check_version (STRINGPREP_VERSION))
+     fail ("stringprep_check_version failed (header %s runtime %s)\n",
+@@ -224,7 +224,7 @@ doit (void)
+   for (i = 0; i < sizeof (strprep) / sizeof (strprep[0]); i++)
+     {
+       if (debug)
+-	printf ("STRINGPREP entry %ld\n", i);
++	printf ("STRINGPREP entry %u\n", i);
+ 
+       if (debug)
+ 	{
+@@ -247,12 +247,12 @@ doit (void)
+ 	  continue;
+ 	else if (l == NULL)
+ 	  {
+-	    fail ("bad UTF-8 in entry %ld\n", i);
++	    fail ("bad UTF-8 in entry %u\n", i);
+ 	    continue;
+ 	  }
+ 	else if (strcmp (strprep[i].in, x) != 0)
+ 	  {
+-	    fail ("bad UTF-8 in entry %ld\n", i);
++	    fail ("bad UTF-8 in entry %u\n", i);
+ 	    if (debug)
+ 	      {
+ 		puts ("expected:");
+@@ -274,7 +274,7 @@ doit (void)
+ 			       "Nameprep", strprep[i].flags);
+       if (rc != strprep[i].rc)
+ 	{
+-	  fail ("stringprep() entry %ld failed: %d\n", i, rc);
++	  fail ("stringprep() entry %u failed: %d\n", i, rc);
+ 	  if (debug)
+ 	    printf ("FATAL\n");
+ 	  if (rc == STRINGPREP_OK)
+@@ -302,7 +302,7 @@ doit (void)
+ 	  if (strlen (strprep[i].out) != strlen (p) ||
+ 	      memcmp (strprep[i].out, p, strlen (p)) != 0)
+ 	    {
+-	      fail ("stringprep() entry %ld failed\n", i);
++	      fail ("stringprep() entry %ld failed\n", (long) i);
+ 	      if (debug)
+ 		printf ("ERROR\n");
+ 	    }
+diff --git a/tests/tst_tld.c b/tests/tst_tld.c
+index 2f8e12e8..d038c790 100644
+--- a/tests/tst_tld.c
++++ b/tests/tst_tld.c
+@@ -80,7 +80,7 @@ const Tld_table * my_tld_tables[] =
+ void
+ doit (void)
+ {
+-  size_t i;
++  unsigned i;
+   const Tld_table *tldtable;
+   char *out;
+   size_t errpos;
+@@ -206,7 +206,7 @@ doit (void)
+   for (i = 0; i < sizeof (tld) / sizeof (tld[0]); i++)
+     {
+       if (debug)
+-	printf ("TLD entry %ld: %s\n", i, tld[i].name);
++	printf ("TLD entry %u: %s\n", i, tld[i].name);
+ 
+       if (debug)
+ 	{
+@@ -217,7 +217,7 @@ doit (void)
+       tldtable = tld_default_table (tld[i].tld, NULL);
+       if (tldtable == NULL)
+ 	{
+-	  fail ("TLD entry %ld tld_get_table (%s)\n", i, tld[i].tld);
++	  fail ("TLD entry %u tld_get_table (%s)\n", i, tld[i].tld);
+ 	  if (debug)
+ 	    printf ("FATAL\n");
+ 	  continue;
+@@ -226,7 +226,7 @@ doit (void)
+       rc = tld_check_4t (tld[i].in, tld[i].inlen, &errpos, tldtable);
+       if (rc != tld[i].rc)
+ 	{
+-	  fail ("TLD entry %ld failed: %d\n", i, rc);
++	  fail ("TLD entry %u failed: %d\n", i, rc);
+ 	  if (debug)
+ 	    printf ("FATAL\n");
+ 	  continue;
+@@ -237,7 +237,7 @@ doit (void)
+ 
+       if (rc != tld[i].rc)
+ 	{
+-	  fail ("TLD entry %ld failed\n", i);
++	  fail ("TLD entry %u failed\n", i);
+ 	  if (debug)
+ 	    printf ("ERROR\n");
+ 	}
+@@ -245,12 +245,12 @@ doit (void)
+ 	{
+ 	  if (debug)
+ 	    printf ("returned errpos %ld expected errpos %ld\n",
+-		    errpos, tld[i].errpos);
++		    (long) errpos, (long) tld[i].errpos);
+ 
+ 	  if (tld[i].errpos != errpos)
+ 	    {
+-	      fail ("TLD entry %ld failed because errpos %ld != %ld\n", i,
+-		    tld[i].errpos, errpos);
++	      fail ("TLD entry %u failed because errpos %ld != %ld\n", i,
++		    (long) tld[i].errpos, (long) errpos);
+ 	      if (debug)
+ 		printf ("ERROR\n");
+ 	    }
+@@ -262,12 +262,12 @@ doit (void)
+ 	rc = tld_check_8z (tld[i].example, &errpos, NULL);
+ 	if (rc != tld[i].rc)
+ 	  {
+-	    fail ("TLD entry %ld failed\n", i);
++	    fail ("TLD entry %u failed\n", i);
+ 	    if (debug)
+ 	      printf ("ERROR\n");
+ 	  }
+ 	if (debug)
+-	  printf ("TLD entry %ld tld_check_8z (%s)\n", i, tld[i].example);
++	  printf ("TLD entry %u tld_check_8z (%s)\n", i, tld[i].example);
+       }
+     }
+ }
+diff --git a/tests/utils.c b/tests/utils.c
+index 717ee012..5577dc32 100644
+--- a/tests/utils.c
++++ b/tests/utils.c
+@@ -49,7 +49,7 @@ escapeprint (const char *str, size_t len)
+ {
+   size_t i;
+ 
+-  printf (" (length %ld bytes):\n\t", len);
++  printf (" (length %ld bytes):\n\t", (long) len);
+   for (i = 0; i < len; i++)
+     {
+       if (((str[i] & 0xFF) >= 'A' && (str[i] & 0xFF) <= 'Z') ||
+@@ -58,7 +58,7 @@ escapeprint (const char *str, size_t len)
+ 	  || (str[i] & 0xFF) == ' ' || (str[i] & 0xFF) == '.')
+ 	printf ("%c", (str[i] & 0xFF));
+       else
+-	printf ("\\x%02X", (str[i] & 0xFF));
++	printf ("\\x%02X", (unsigned) (str[i] & 0xFF));
+       if ((i + 1) % 16 == 0 && (i + 1) < len)
+ 	printf ("'\n\t'");
+     }
+@@ -73,7 +73,7 @@ hexprint (const char *str, size_t len)
+   printf ("\t;; ");
+   for (i = 0; i < len; i++)
+     {
+-      printf ("%02x ", (str[i] & 0xFF));
++      printf ("%02x ", (unsigned) (str[i] & 0xFF));
+       if ((i + 1) % 8 == 0)
+ 	printf (" ");
+       if ((i + 1) % 16 == 0 && i + 1 < len)
+-- 
+2.11.0