-# printf.m4 serial 42
-dnl Copyright (C) 2003, 2007-2011 Free Software Foundation, Inc.
+# printf.m4 serial 73
+dnl Copyright (C) 2003, 2007-2021 Free Software Foundation, Inc.
dnl This file is free software; the Free Software Foundation
dnl gives unlimited permission to copy and/or distribute it,
dnl with or without modifications, as long as this notice is preserved.
if (sprintf (buf, "%ju %d", (uintmax_t) 12345671, 33, 44, 55) < 0
|| strcmp (buf, "12345671 33") != 0)
result |= 1;
+#else
+ result |= 1;
#endif
buf[0] = '\0';
if (sprintf (buf, "%zu %d", (size_t) 12345672, 33, 44, 55) < 0
[gl_cv_func_printf_sizes_c99=yes],
[gl_cv_func_printf_sizes_c99=no],
[
-changequote(,)dnl
case "$host_os" in
+changequote(,)dnl
# Guess yes on glibc systems.
- *-gnu*) gl_cv_func_printf_sizes_c99="guessing yes";;
+ *-gnu* | gnu*) gl_cv_func_printf_sizes_c99="guessing yes";;
+ # Guess yes on musl systems.
+ *-musl*) gl_cv_func_printf_sizes_c99="guessing yes";;
# Guess yes on FreeBSD >= 5.
- freebsd[1-4]*) gl_cv_func_printf_sizes_c99="guessing no";;
+ freebsd[1-4].*) gl_cv_func_printf_sizes_c99="guessing no";;
freebsd* | kfreebsd*) gl_cv_func_printf_sizes_c99="guessing yes";;
- # Guess yes on MacOS X >= 10.3.
+ midnightbsd*) gl_cv_func_printf_sizes_c99="guessing yes";;
+ # Guess yes on Mac OS X >= 10.3.
darwin[1-6].*) gl_cv_func_printf_sizes_c99="guessing no";;
darwin*) gl_cv_func_printf_sizes_c99="guessing yes";;
# Guess yes on OpenBSD >= 3.9.
netbsd[1-2]* | netbsdelf[1-2]* | netbsdaout[1-2]* | netbsdcoff[1-2]*)
gl_cv_func_printf_sizes_c99="guessing no";;
netbsd*) gl_cv_func_printf_sizes_c99="guessing yes";;
- # If we don't know, assume the worst.
- *) gl_cv_func_printf_sizes_c99="guessing no";;
- esac
+ # Guess yes on Android.
+ linux*-android*) gl_cv_func_printf_sizes_c99="guessing yes";;
changequote([,])dnl
+ # Guess yes on MSVC, no on mingw.
+ mingw*) AC_EGREP_CPP([Known], [
+#ifdef _MSC_VER
+ Known
+#endif
+ ],
+ [gl_cv_func_printf_sizes_c99="guessing yes"],
+ [gl_cv_func_printf_sizes_c99="guessing no"])
+ ;;
+ # If we don't know, obey --enable-cross-guesses.
+ *) gl_cv_func_printf_sizes_c99="$gl_cross_guess_normal";;
+ esac
])
])
])
}]])],
[gl_cv_func_printf_long_double=yes],
[gl_cv_func_printf_long_double=no],
- [
-changequote(,)dnl
- case "$host_os" in
- beos*) gl_cv_func_printf_long_double="guessing no";;
- mingw* | pw*) gl_cv_func_printf_long_double="guessing no";;
- *) gl_cv_func_printf_long_double="guessing yes";;
+ [case "$host_os" in
+ # Guess no on BeOS.
+ beos*) gl_cv_func_printf_long_double="guessing no";;
+ # Guess yes on Android.
+ linux*-android*) gl_cv_func_printf_long_double="guessing yes";;
+ # Guess yes on MSVC, no on mingw.
+ mingw*) AC_EGREP_CPP([Known], [
+#ifdef _MSC_VER
+ Known
+#endif
+ ],
+ [gl_cv_func_printf_long_double="guessing yes"],
+ [gl_cv_func_printf_long_double="guessing no"])
+ ;;
+ *) gl_cv_func_printf_long_double="guessing yes";;
esac
-changequote([,])dnl
])
])
])
int main ()
{
int result = 0;
- if (sprintf (buf, "%f", 1.0 / 0.0) < 0
+ if (sprintf (buf, "%f", 1.0 / zero) < 0
|| (strcmp (buf, "inf") != 0 && strcmp (buf, "infinity") != 0))
result |= 1;
- if (sprintf (buf, "%f", -1.0 / 0.0) < 0
+ if (sprintf (buf, "%f", -1.0 / zero) < 0
|| (strcmp (buf, "-inf") != 0 && strcmp (buf, "-infinity") != 0))
result |= 1;
if (sprintf (buf, "%f", zero / zero) < 0
|| !strisnan (buf, 0, strlen (buf)))
result |= 2;
- if (sprintf (buf, "%e", 1.0 / 0.0) < 0
+ if (sprintf (buf, "%e", 1.0 / zero) < 0
|| (strcmp (buf, "inf") != 0 && strcmp (buf, "infinity") != 0))
result |= 4;
- if (sprintf (buf, "%e", -1.0 / 0.0) < 0
+ if (sprintf (buf, "%e", -1.0 / zero) < 0
|| (strcmp (buf, "-inf") != 0 && strcmp (buf, "-infinity") != 0))
result |= 4;
if (sprintf (buf, "%e", zero / zero) < 0
|| !strisnan (buf, 0, strlen (buf)))
result |= 8;
- if (sprintf (buf, "%g", 1.0 / 0.0) < 0
+ if (sprintf (buf, "%g", 1.0 / zero) < 0
|| (strcmp (buf, "inf") != 0 && strcmp (buf, "infinity") != 0))
result |= 16;
- if (sprintf (buf, "%g", -1.0 / 0.0) < 0
+ if (sprintf (buf, "%g", -1.0 / zero) < 0
|| (strcmp (buf, "-inf") != 0 && strcmp (buf, "-infinity") != 0))
result |= 16;
if (sprintf (buf, "%g", zero / zero) < 0
[gl_cv_func_printf_infinite=yes],
[gl_cv_func_printf_infinite=no],
[
-changequote(,)dnl
case "$host_os" in
+changequote(,)dnl
# Guess yes on glibc systems.
- *-gnu*) gl_cv_func_printf_infinite="guessing yes";;
+ *-gnu* | gnu*) gl_cv_func_printf_infinite="guessing yes";;
+ # Guess yes on musl systems.
+ *-musl*) gl_cv_func_printf_infinite="guessing yes";;
# Guess yes on FreeBSD >= 6.
- freebsd[1-5]*) gl_cv_func_printf_infinite="guessing no";;
+ freebsd[1-5].*) gl_cv_func_printf_infinite="guessing no";;
freebsd* | kfreebsd*) gl_cv_func_printf_infinite="guessing yes";;
- # Guess yes on MacOS X >= 10.3.
+ midnightbsd*) gl_cv_func_printf_infinite="guessing yes";;
+ # Guess yes on Mac OS X >= 10.3.
darwin[1-6].*) gl_cv_func_printf_infinite="guessing no";;
darwin*) gl_cv_func_printf_infinite="guessing yes";;
# Guess yes on HP-UX >= 11.
netbsd[1-2]* | netbsdelf[1-2]* | netbsdaout[1-2]* | netbsdcoff[1-2]*)
gl_cv_func_printf_infinite="guessing no";;
netbsd*) gl_cv_func_printf_infinite="guessing yes";;
+ # Guess yes on OpenBSD >= 6.0.
+ openbsd[1-5].*) gl_cv_func_printf_infinite="guessing no";;
+ openbsd*) gl_cv_func_printf_infinite="guessing yes";;
# Guess yes on BeOS.
beos*) gl_cv_func_printf_infinite="guessing yes";;
- # If we don't know, assume the worst.
- *) gl_cv_func_printf_infinite="guessing no";;
- esac
+ # Guess no on Android.
+ linux*-android*) gl_cv_func_printf_infinite="guessing no";;
changequote([,])dnl
+ # Guess yes on MSVC, no on mingw.
+ mingw*) AC_EGREP_CPP([Known], [
+#ifdef _MSC_VER
+ Known
+#endif
+ ],
+ [gl_cv_func_printf_infinite="guessing yes"],
+ [gl_cv_func_printf_infinite="guessing no"])
+ ;;
+ # If we don't know, obey --enable-cross-guesses.
+ *) gl_cv_func_printf_infinite="$gl_cross_guess_normal";;
+ esac
])
])
])
AC_REQUIRE([gl_PRINTF_LONG_DOUBLE])
AC_REQUIRE([AC_PROG_CC])
AC_REQUIRE([gl_BIGENDIAN])
+ AC_REQUIRE([gl_LONG_DOUBLE_VS_DOUBLE])
AC_REQUIRE([AC_CANONICAL_HOST]) dnl for cross-compiles
dnl The user can set or unset the variable gl_printf_safe to indicate
dnl that he wishes a safe handling of non-IEEE-754 'long double' values.
{
int result = 0;
nocrash_init();
- if (sprintf (buf, "%Lf", 1.0L / 0.0L) < 0
+ if (sprintf (buf, "%Lf", 1.0L / zeroL) < 0
|| (strcmp (buf, "inf") != 0 && strcmp (buf, "infinity") != 0))
result |= 1;
- if (sprintf (buf, "%Lf", -1.0L / 0.0L) < 0
+ if (sprintf (buf, "%Lf", -1.0L / zeroL) < 0
|| (strcmp (buf, "-inf") != 0 && strcmp (buf, "-infinity") != 0))
result |= 1;
if (sprintf (buf, "%Lf", zeroL / zeroL) < 0
|| !strisnan (buf, 0, strlen (buf)))
result |= 1;
- if (sprintf (buf, "%Le", 1.0L / 0.0L) < 0
+ if (sprintf (buf, "%Le", 1.0L / zeroL) < 0
|| (strcmp (buf, "inf") != 0 && strcmp (buf, "infinity") != 0))
result |= 1;
- if (sprintf (buf, "%Le", -1.0L / 0.0L) < 0
+ if (sprintf (buf, "%Le", -1.0L / zeroL) < 0
|| (strcmp (buf, "-inf") != 0 && strcmp (buf, "-infinity") != 0))
result |= 1;
if (sprintf (buf, "%Le", zeroL / zeroL) < 0
|| !strisnan (buf, 0, strlen (buf)))
result |= 1;
- if (sprintf (buf, "%Lg", 1.0L / 0.0L) < 0
+ if (sprintf (buf, "%Lg", 1.0L / zeroL) < 0
|| (strcmp (buf, "inf") != 0 && strcmp (buf, "infinity") != 0))
result |= 1;
- if (sprintf (buf, "%Lg", -1.0L / 0.0L) < 0
+ if (sprintf (buf, "%Lg", -1.0L / zeroL) < 0
|| (strcmp (buf, "-inf") != 0 && strcmp (buf, "-infinity") != 0))
result |= 1;
if (sprintf (buf, "%Lg", zeroL / zeroL) < 0
|| !strisnan (buf, 0, strlen (buf)))
result |= 1;
-#if CHECK_PRINTF_SAFE && ((defined __ia64 && LDBL_MANT_DIG == 64) || (defined __x86_64__ || defined __amd64__) || (defined __i386 || defined __i386__ || defined _I386 || defined _M_IX86 || defined _X86_))
+#if CHECK_PRINTF_SAFE && ((defined __ia64 && LDBL_MANT_DIG == 64) || (defined __x86_64__ || defined __amd64__) || (defined __i386 || defined __i386__ || defined _I386 || defined _M_IX86 || defined _X86_)) && !HAVE_SAME_LONG_DOUBLE_AS_DOUBLE
/* Representation of an 80-bit 'long double' as an initializer for a sequence
of 'unsigned int' words. */
# ifdef WORDS_BIGENDIAN
# define LDBL80_WORDS(exponent,manthi,mantlo) \
{ ((unsigned int) (exponent) << 16) | ((unsigned int) (manthi) >> 16), \
- ((unsigned int) (manthi) << 16) | (unsigned int) (mantlo) >> 16), \
+ ((unsigned int) (manthi) << 16) | ((unsigned int) (mantlo) >> 16), \
(unsigned int) (mantlo) << 16 \
}
# else
{ /* Pseudo-NaN. */
static union { unsigned int word[4]; long double value; } x =
{ LDBL80_WORDS (0xFFFF, 0x40000001, 0x00000000) };
- if (sprintf (buf, "%Lf", x.value) < 0
- || !strisnan (buf, 0, strlen (buf)))
+ if (sprintf (buf, "%Lf", x.value) <= 0)
result |= 4;
- if (sprintf (buf, "%Le", x.value) < 0
- || !strisnan (buf, 0, strlen (buf)))
+ if (sprintf (buf, "%Le", x.value) <= 0)
result |= 4;
- if (sprintf (buf, "%Lg", x.value) < 0
- || !strisnan (buf, 0, strlen (buf)))
+ if (sprintf (buf, "%Lg", x.value) <= 0)
result |= 4;
}
{ /* Pseudo-Infinity. */
static union { unsigned int word[4]; long double value; } x =
{ LDBL80_WORDS (0xFFFF, 0x00000000, 0x00000000) };
- if (sprintf (buf, "%Lf", x.value) < 0
- || !strisnan (buf, 0, strlen (buf)))
+ if (sprintf (buf, "%Lf", x.value) <= 0)
result |= 8;
- if (sprintf (buf, "%Le", x.value) < 0
- || !strisnan (buf, 0, strlen (buf)))
+ if (sprintf (buf, "%Le", x.value) <= 0)
result |= 8;
- if (sprintf (buf, "%Lg", x.value) < 0
- || !strisnan (buf, 0, strlen (buf)))
+ if (sprintf (buf, "%Lg", x.value) <= 0)
result |= 8;
}
{ /* Pseudo-Zero. */
static union { unsigned int word[4]; long double value; } x =
{ LDBL80_WORDS (0x4004, 0x00000000, 0x00000000) };
- if (sprintf (buf, "%Lf", x.value) < 0
- || !strisnan (buf, 0, strlen (buf)))
+ if (sprintf (buf, "%Lf", x.value) <= 0)
result |= 16;
- if (sprintf (buf, "%Le", x.value) < 0
- || !strisnan (buf, 0, strlen (buf)))
+ if (sprintf (buf, "%Le", x.value) <= 0)
result |= 16;
- if (sprintf (buf, "%Lg", x.value) < 0
- || !strisnan (buf, 0, strlen (buf)))
+ if (sprintf (buf, "%Lg", x.value) <= 0)
result |= 16;
}
{ /* Unnormalized number. */
static union { unsigned int word[4]; long double value; } x =
{ LDBL80_WORDS (0x4000, 0x63333333, 0x00000000) };
- if (sprintf (buf, "%Lf", x.value) < 0
- || !strisnan (buf, 0, strlen (buf)))
+ if (sprintf (buf, "%Lf", x.value) <= 0)
result |= 32;
- if (sprintf (buf, "%Le", x.value) < 0
- || !strisnan (buf, 0, strlen (buf)))
+ if (sprintf (buf, "%Le", x.value) <= 0)
result |= 32;
- if (sprintf (buf, "%Lg", x.value) < 0
- || !strisnan (buf, 0, strlen (buf)))
+ if (sprintf (buf, "%Lg", x.value) <= 0)
result |= 32;
}
{ /* Pseudo-Denormal. */
static union { unsigned int word[4]; long double value; } x =
{ LDBL80_WORDS (0x0000, 0x83333333, 0x00000000) };
- if (sprintf (buf, "%Lf", x.value) < 0
- || !strisnan (buf, 0, strlen (buf)))
+ if (sprintf (buf, "%Lf", x.value) <= 0)
result |= 64;
- if (sprintf (buf, "%Le", x.value) < 0
- || !strisnan (buf, 0, strlen (buf)))
+ if (sprintf (buf, "%Le", x.value) <= 0)
result |= 64;
- if (sprintf (buf, "%Lg", x.value) < 0
- || !strisnan (buf, 0, strlen (buf)))
+ if (sprintf (buf, "%Lg", x.value) <= 0)
result |= 64;
}
#endif
}]])],
[gl_cv_func_printf_infinite_long_double=yes],
[gl_cv_func_printf_infinite_long_double=no],
- [
-changequote(,)dnl
- case "$host_cpu" in
+ [case "$host_cpu" in
# Guess no on ia64, x86_64, i386.
ia64 | x86_64 | i*86) gl_cv_func_printf_infinite_long_double="guessing no";;
*)
case "$host_os" in
+changequote(,)dnl
# Guess yes on glibc systems.
- *-gnu*) gl_cv_func_printf_infinite_long_double="guessing yes";;
+ *-gnu* | gnu*) gl_cv_func_printf_infinite_long_double="guessing yes";;
+ # Guess yes on musl systems.
+ *-musl*) gl_cv_func_printf_infinite_long_double="guessing yes";;
# Guess yes on FreeBSD >= 6.
- freebsd[1-5]*) gl_cv_func_printf_infinite_long_double="guessing no";;
+ freebsd[1-5].*) gl_cv_func_printf_infinite_long_double="guessing no";;
freebsd* | kfreebsd*) gl_cv_func_printf_infinite_long_double="guessing yes";;
+ midnightbsd*) gl_cv_func_printf_infinite_long_double="guessing yes";;
# Guess yes on HP-UX >= 11.
hpux[7-9]* | hpux10*) gl_cv_func_printf_infinite_long_double="guessing no";;
hpux*) gl_cv_func_printf_infinite_long_double="guessing yes";;
- # If we don't know, assume the worst.
- *) gl_cv_func_printf_infinite_long_double="guessing no";;
+ # Guess yes on OpenBSD >= 6.0.
+ openbsd[1-5].*) gl_cv_func_printf_infinite_long_double="guessing no";;
+ openbsd*) gl_cv_func_printf_infinite_long_double="guessing yes";;
+ # Guess no on Android.
+ linux*-android*) gl_cv_func_printf_infinite_long_double="guessing no";;
+changequote([,])dnl
+ # Guess yes on MSVC, no on mingw.
+ mingw*) AC_EGREP_CPP([Known], [
+#ifdef _MSC_VER
+ Known
+#endif
+ ],
+ [gl_cv_func_printf_infinite_long_double="guessing yes"],
+ [gl_cv_func_printf_infinite_long_double="guessing no"])
+ ;;
+ # If we don't know, obey --enable-cross-guesses.
+ *) gl_cv_func_printf_infinite_long_double="$gl_cross_guess_normal";;
esac
;;
esac
-changequote([,])dnl
])
])
;;
#include <stdio.h>
#include <string.h>
static char buf[100];
+static double zero = 0.0;
int main ()
{
int result = 0;
&& strcmp (buf, "-0X6.488P-1 33") != 0
&& strcmp (buf, "-0XC.91P-2 33") != 0))
result |= 2;
- /* This catches a FreeBSD 6.1 bug: it doesn't round. */
+ /* This catches a FreeBSD 13.0 bug: it doesn't round. */
if (sprintf (buf, "%.2a %d", 1.51, 33, 44, 55) < 0
|| (strcmp (buf, "0x1.83p+0 33") != 0
&& strcmp (buf, "0x3.05p-1 33") != 0
&& strcmp (buf, "0x6.0ap-2 33") != 0
&& strcmp (buf, "0xc.14p-3 33") != 0))
result |= 4;
+ /* This catches a Mac OS X 10.12.4 (Darwin 16.5) bug: it doesn't round. */
+ if (sprintf (buf, "%.0a %d", 1.51, 33, 44, 55) < 0
+ || (strcmp (buf, "0x2p+0 33") != 0
+ && strcmp (buf, "0x3p-1 33") != 0
+ && strcmp (buf, "0x6p-2 33") != 0
+ && strcmp (buf, "0xcp-3 33") != 0))
+ result |= 4;
/* This catches a FreeBSD 6.1 bug. See
- <http://lists.gnu.org/archive/html/bug-gnulib/2007-04/msg00107.html> */
- if (sprintf (buf, "%010a %d", 1.0 / 0.0, 33, 44, 55) < 0
+ <https://lists.gnu.org/r/bug-gnulib/2007-04/msg00107.html> */
+ if (sprintf (buf, "%010a %d", 1.0 / zero, 33, 44, 55) < 0
|| buf[0] == '0')
result |= 8;
- /* This catches a MacOS X 10.3.9 (Darwin 7.9) bug. */
+ /* This catches a Mac OS X 10.3.9 (Darwin 7.9) bug. */
if (sprintf (buf, "%.1a", 1.999) < 0
|| (strcmp (buf, "0x1.0p+1") != 0
&& strcmp (buf, "0x2.0p+0") != 0
&& strcmp (buf, "0x4.0p-1") != 0
&& strcmp (buf, "0x8.0p-2") != 0))
result |= 16;
- /* This catches the same MacOS X 10.3.9 (Darwin 7.9) bug and also a
- glibc 2.4 bug <http://sourceware.org/bugzilla/show_bug.cgi?id=2908>. */
+ /* This catches the same Mac OS X 10.3.9 (Darwin 7.9) bug and also a
+ glibc 2.4 bug <https://sourceware.org/bugzilla/show_bug.cgi?id=2908>. */
if (sprintf (buf, "%.1La", 1.999L) < 0
|| (strcmp (buf, "0x1.0p+1") != 0
&& strcmp (buf, "0x2.0p+0") != 0
[
case "$host_os" in
# Guess yes on glibc >= 2.5 systems.
- *-gnu*)
+ *-gnu* | gnu*)
AC_EGREP_CPP([BZ2908], [
#include <features.h>
#ifdef __GNU_LIBRARY__
[gl_cv_func_printf_directive_a="guessing yes"],
[gl_cv_func_printf_directive_a="guessing no"])
;;
- # If we don't know, assume the worst.
- *) gl_cv_func_printf_directive_a="guessing no";;
+ # Guess yes on musl systems.
+ *-musl*) gl_cv_func_printf_directive_a="guessing yes";;
+ # Guess no on Android.
+ linux*-android*) gl_cv_func_printf_directive_a="guessing no";;
+ # Guess no on native Windows.
+ mingw*) gl_cv_func_printf_directive_a="guessing no";;
+ # If we don't know, obey --enable-cross-guesses.
+ *) gl_cv_func_printf_directive_a="$gl_cross_guess_normal";;
esac
])
])
#include <stdio.h>
#include <string.h>
static char buf[100];
+static double zero = 0.0;
int main ()
{
int result = 0;
if (sprintf (buf, "%F %d", 1234567.0, 33, 44, 55) < 0
|| strcmp (buf, "1234567.000000 33") != 0)
result |= 1;
- if (sprintf (buf, "%F", 1.0 / 0.0) < 0
+ if (sprintf (buf, "%F", 1.0 / zero) < 0
|| (strcmp (buf, "INF") != 0 && strcmp (buf, "INFINITY") != 0))
result |= 2;
/* This catches a Cygwin 1.5.x bug. */
[gl_cv_func_printf_directive_f=yes],
[gl_cv_func_printf_directive_f=no],
[
-changequote(,)dnl
case "$host_os" in
+changequote(,)dnl
# Guess yes on glibc systems.
- *-gnu*) gl_cv_func_printf_directive_f="guessing yes";;
+ *-gnu* | gnu*) gl_cv_func_printf_directive_f="guessing yes";;
+ # Guess yes on musl systems.
+ *-musl*) gl_cv_func_printf_directive_f="guessing yes";;
# Guess yes on FreeBSD >= 6.
- freebsd[1-5]*) gl_cv_func_printf_directive_f="guessing no";;
+ freebsd[1-5].*) gl_cv_func_printf_directive_f="guessing no";;
freebsd* | kfreebsd*) gl_cv_func_printf_directive_f="guessing yes";;
- # Guess yes on MacOS X >= 10.3.
+ midnightbsd*) gl_cv_func_printf_directive_f="guessing yes";;
+ # Guess yes on Mac OS X >= 10.3.
darwin[1-6].*) gl_cv_func_printf_directive_f="guessing no";;
darwin*) gl_cv_func_printf_directive_f="guessing yes";;
+ # Guess yes on OpenBSD >= 6.0.
+ openbsd[1-5].*) gl_cv_func_printf_directive_f="guessing no";;
+ openbsd*) gl_cv_func_printf_directive_f="guessing yes";;
# Guess yes on Solaris >= 2.10.
- solaris2.[1-9][0-9]*) gl_cv_func_printf_sizes_c99="guessing yes";;
- solaris*) gl_cv_func_printf_sizes_c99="guessing no";;
- # If we don't know, assume the worst.
- *) gl_cv_func_printf_directive_f="guessing no";;
- esac
+ solaris2.[1-9][0-9]*) gl_cv_func_printf_directive_f="guessing yes";;
+ solaris*) gl_cv_func_printf_directive_f="guessing no";;
+ # Guess no on Android.
+ linux*-android*) gl_cv_func_printf_directive_f="guessing no";;
changequote([,])dnl
+ # Guess yes on MSVC, no on mingw.
+ mingw*) AC_EGREP_CPP([Known], [
+#ifdef _MSC_VER
+ Known
+#endif
+ ],
+ [gl_cv_func_printf_directive_f="guessing yes"],
+ [gl_cv_func_printf_directive_f="guessing no"])
+ ;;
+ # If we don't know, obey --enable-cross-guesses.
+ *) gl_cv_func_printf_directive_f="$gl_cross_guess_normal";;
+ esac
])
])
])
AC_RUN_IFELSE(
[AC_LANG_SOURCE([[
#include <stdio.h>
+#include <stdlib.h>
#include <string.h>
+#ifdef _MSC_VER
+#include <inttypes.h>
+/* See page about "Parameter Validation" on msdn.microsoft.com.
+ <https://docs.microsoft.com/en-us/cpp/c-runtime-library/parameter-validation>
+ <https://docs.microsoft.com/en-us/cpp/c-runtime-library/reference/set-invalid-parameter-handler-set-thread-local-invalid-parameter-handler> */
+static void cdecl
+invalid_parameter_handler (const wchar_t *expression,
+ const wchar_t *function,
+ const wchar_t *file, unsigned int line,
+ uintptr_t dummy)
+{
+ exit (1);
+}
+#endif
static char fmtstring[10];
static char buf[100];
int main ()
{
int count = -1;
+#ifdef _MSC_VER
+ _set_invalid_parameter_handler (invalid_parameter_handler);
+#endif
/* Copy the format string. Some systems (glibc with _FORTIFY_SOURCE=2)
support %n in format strings in read-only memory but not in writable
memory. */
}]])],
[gl_cv_func_printf_directive_n=yes],
[gl_cv_func_printf_directive_n=no],
- [
-changequote(,)dnl
- case "$host_os" in
- *) gl_cv_func_printf_directive_n="guessing yes";;
+ [case "$host_os" in
+ # Guess no on glibc when _FORTIFY_SOURCE >= 2.
+ *-gnu* | gnu*) AC_COMPILE_IFELSE(
+ [AC_LANG_SOURCE(
+ [[#if _FORTIFY_SOURCE >= 2
+ error fail
+ #endif
+ ]])],
+ [gl_cv_func_printf_directive_n="guessing yes"],
+ [gl_cv_func_printf_directive_n="guessing no"])
+ ;;
+ # Guess no on Android.
+ linux*-android*) gl_cv_func_printf_directive_n="guessing no";;
+ # Guess no on native Windows.
+ mingw*) gl_cv_func_printf_directive_n="guessing no";;
+ *) gl_cv_func_printf_directive_n="guessing yes";;
esac
-changequote([,])dnl
])
])
])
[
AC_RUN_IFELSE(
[AC_LANG_SOURCE([[
-/* Tru64 with Desktop Toolkit C has a bug: <stdio.h> must be included before
- <wchar.h>.
- BSD/OS 4.0.1 has a bug: <stddef.h>, <stdio.h> and <time.h> must be
- included before <wchar.h>. */
-#include <stddef.h>
#include <stdio.h>
-#include <time.h>
#include <wchar.h>
#include <string.h>
int main ()
[
changequote(,)dnl
case "$host_os" in
- openbsd*) gl_cv_func_printf_directive_ls="guessing no";;
+ # Guess yes on OpenBSD >= 6.0.
+ openbsd[1-5].*) gl_cv_func_printf_directive_ls="guessing no";;
+ openbsd*) gl_cv_func_printf_directive_ls="guessing yes";;
irix*) gl_cv_func_printf_directive_ls="guessing no";;
solaris*) gl_cv_func_printf_directive_ls="guessing no";;
cygwin*) gl_cv_func_printf_directive_ls="guessing no";;
beos* | haiku*) gl_cv_func_printf_directive_ls="guessing no";;
+ # Guess no on Android.
+ linux*-android*) gl_cv_func_printf_directive_ls="guessing no";;
+ # Guess yes on native Windows.
+ mingw*) gl_cv_func_printf_directive_ls="guessing yes";;
*) gl_cv_func_printf_directive_ls="guessing yes";;
esac
changequote([,])dnl
changequote(,)dnl
case "$host_os" in
netbsd[1-3]* | netbsdelf[1-3]* | netbsdaout[1-3]* | netbsdcoff[1-3]*)
- gl_cv_func_printf_positions="guessing no";;
- beos*) gl_cv_func_printf_positions="guessing no";;
- mingw* | pw*) gl_cv_func_printf_positions="guessing no";;
- *) gl_cv_func_printf_positions="guessing yes";;
+ gl_cv_func_printf_positions="guessing no";;
+ beos*) gl_cv_func_printf_positions="guessing no";;
+ # Guess yes on Android.
+ linux*-android*) gl_cv_func_printf_positions="guessing yes";;
+ # Guess no on native Windows.
+ mingw* | pw*) gl_cv_func_printf_positions="guessing no";;
+ *) gl_cv_func_printf_positions="guessing yes";;
esac
changequote([,])dnl
])
[
changequote(,)dnl
case "$host_os" in
- cygwin*) gl_cv_func_printf_flag_grouping="guessing no";;
- netbsd*) gl_cv_func_printf_flag_grouping="guessing no";;
- mingw* | pw*) gl_cv_func_printf_flag_grouping="guessing no";;
- *) gl_cv_func_printf_flag_grouping="guessing yes";;
+ cygwin*) gl_cv_func_printf_flag_grouping="guessing no";;
+ netbsd*) gl_cv_func_printf_flag_grouping="guessing no";;
+ # Guess no on Android.
+ linux*-android*) gl_cv_func_printf_flag_grouping="guessing no";;
+ # Guess no on native Windows.
+ mingw* | pw*) gl_cv_func_printf_flag_grouping="guessing no";;
+ *) gl_cv_func_printf_flag_grouping="guessing yes";;
esac
changequote([,])dnl
])
dnl Test whether the *printf family of functions supports the - flag correctly.
dnl (ISO C99.) See
-dnl <http://lists.gnu.org/archive/html/bug-coreutils/2008-02/msg00035.html>
+dnl <https://lists.gnu.org/r/bug-coreutils/2008-02/msg00035.html>
dnl Result is gl_cv_func_printf_flag_leftadjust.
AC_DEFUN([gl_PRINTF_FLAG_LEFTADJUST],
[
changequote(,)dnl
case "$host_os" in
- # Guess yes on HP-UX 11.
- hpux11*) gl_cv_func_printf_flag_leftadjust="guessing yes";;
- # Guess no on HP-UX 10 and older.
- hpux*) gl_cv_func_printf_flag_leftadjust="guessing no";;
- # Guess yes otherwise.
- *) gl_cv_func_printf_flag_leftadjust="guessing yes";;
+ # Guess yes on HP-UX 11.
+ hpux11*) gl_cv_func_printf_flag_leftadjust="guessing yes";;
+ # Guess no on HP-UX 10 and older.
+ hpux*) gl_cv_func_printf_flag_leftadjust="guessing no";;
+ # Guess yes on Android.
+ linux*-android*) gl_cv_func_printf_flag_leftadjust="guessing yes";;
+ # Guess yes on native Windows.
+ mingw*) gl_cv_func_printf_flag_leftadjust="guessing yes";;
+ # Guess yes otherwise.
+ *) gl_cv_func_printf_flag_leftadjust="guessing yes";;
esac
changequote([,])dnl
])
dnl Test whether the *printf family of functions supports padding of non-finite
dnl values with the 0 flag correctly. (ISO C99 + TC1 + TC2.) See
-dnl <http://lists.gnu.org/archive/html/bug-gnulib/2007-04/msg00107.html>
+dnl <https://lists.gnu.org/r/bug-gnulib/2007-04/msg00107.html>
dnl Result is gl_cv_func_printf_flag_zero.
AC_DEFUN([gl_PRINTF_FLAG_ZERO],
#include <stdio.h>
#include <string.h>
static char buf[100];
+static double zero = 0.0;
int main ()
{
- if (sprintf (buf, "%010f", 1.0 / 0.0, 33, 44, 55) < 0
+ if (sprintf (buf, "%010f", 1.0 / zero, 33, 44, 55) < 0
|| (strcmp (buf, " inf") != 0
&& strcmp (buf, " infinity") != 0))
return 1;
[
changequote(,)dnl
case "$host_os" in
- # Guess yes on glibc systems.
- *-gnu*) gl_cv_func_printf_flag_zero="guessing yes";;
- # Guess yes on BeOS.
- beos*) gl_cv_func_printf_flag_zero="guessing yes";;
- # If we don't know, assume the worst.
- *) gl_cv_func_printf_flag_zero="guessing no";;
+ # Guess yes on glibc systems.
+ *-gnu* | gnu*) gl_cv_func_printf_flag_zero="guessing yes";;
+ # Guess yes on musl systems.
+ *-musl*) gl_cv_func_printf_flag_zero="guessing yes";;
+ # Guess yes on BeOS.
+ beos*) gl_cv_func_printf_flag_zero="guessing yes";;
+ # Guess no on Android.
+ linux*-android*) gl_cv_func_printf_flag_zero="guessing no";;
+ # Guess no on native Windows.
+ mingw*) gl_cv_func_printf_flag_zero="guessing no";;
+ # If we don't know, obey --enable-cross-guesses.
+ *) gl_cv_func_printf_flag_zero="$gl_cross_guess_normal";;
esac
changequote([,])dnl
])
dnl floating-point or pointer output. On Solaris 10/x86, precisions larger
dnl than 510 in floating-point output crash the program. On Solaris 10/SPARC,
dnl precisions larger than 510 in floating-point output yield wrong results.
-dnl On BeOS, precisions larger than 1044 crash the program.
+dnl On AIX 7.1, precisions larger than 998 in floating-point output yield
+dnl wrong results. On BeOS, precisions larger than 1044 crash the program.
dnl Result is gl_cv_func_printf_precision.
AC_DEFUN([gl_PRINTF_PRECISION],
if (sprintf (buf, "%.511f %d", 1.0, 33, 44) < 511 + 5
|| buf[0] != '1')
result |= 4;
+ if (sprintf (buf, "%.999f %d", 1.0, 33, 44) < 999 + 5
+ || buf[0] != '1')
+ result |= 4;
return result;
}]])],
[gl_cv_func_printf_precision=yes],
[
changequote(,)dnl
case "$host_os" in
- # Guess no only on Solaris, native Win32, and BeOS systems.
- solaris*) gl_cv_func_printf_precision="guessing no" ;;
- mingw* | pw*) gl_cv_func_printf_precision="guessing no" ;;
- beos*) gl_cv_func_printf_precision="guessing no" ;;
- *) gl_cv_func_printf_precision="guessing yes" ;;
+ # Guess no only on Solaris, native Windows, and BeOS systems.
+ solaris*) gl_cv_func_printf_precision="guessing no" ;;
+ mingw* | pw*) gl_cv_func_printf_precision="guessing no" ;;
+ beos*) gl_cv_func_printf_precision="guessing no" ;;
+ # Guess yes on Android.
+ linux*-android*) gl_cv_func_printf_precision="guessing yes" ;;
+ *) gl_cv_func_printf_precision="guessing yes" ;;
esac
changequote([,])dnl
])
gl_cv_func_printf_enomem="guessing no"
if test "$cross_compiling" = no; then
if test $APPLE_UNIVERSAL_BUILD = 0; then
- AC_LANG_CONFTEST([AC_LANG_SOURCE([
+ AC_LANG_CONFTEST([AC_LANG_SOURCE([[
]GL_NOCRASH[
-changequote(,)dnl
#include <stdio.h>
#include <sys/types.h>
#include <sys/time.h>
ret = printf ("%.5000000f", 1.0);
return !(ret == 5000002 || (ret < 0 && errno == ENOMEM));
}
-changequote([,])dnl
- ])])
+ ]])])
if AC_TRY_EVAL([ac_link]) && test -s conftest$ac_exeext; then
- (./conftest
+ (./conftest 2>&AS_MESSAGE_LOG_FD
result=$?
+ _AS_ECHO_LOG([\$? = $result])
if test $result != 0 && test $result != 77; then result=1; fi
exit $result
) >/dev/null 2>/dev/null
fi
rm -fr conftest*
else
- dnl A universal build on Apple MacOS X platforms.
+ dnl A universal build on Apple Mac OS X platforms.
dnl The result would be 'no' in 32-bit mode and 'yes' in 64-bit mode.
dnl But we need a configuration result that is valid in both modes.
gl_cv_func_printf_enomem="guessing no"
if test "$gl_cv_func_printf_enomem" = "guessing no"; then
changequote(,)dnl
case "$host_os" in
- # Guess yes on glibc systems.
- *-gnu*) gl_cv_func_printf_enomem="guessing yes";;
- # Guess yes on Solaris.
- solaris*) gl_cv_func_printf_enomem="guessing yes";;
- # Guess yes on AIX.
- aix*) gl_cv_func_printf_enomem="guessing yes";;
- # Guess yes on HP-UX/hppa.
- hpux*) case "$host_cpu" in
- hppa*) gl_cv_func_printf_enomem="guessing yes";;
- *) gl_cv_func_printf_enomem="guessing no";;
- esac
- ;;
- # Guess yes on IRIX.
- irix*) gl_cv_func_printf_enomem="guessing yes";;
- # Guess yes on OSF/1.
- osf*) gl_cv_func_printf_enomem="guessing yes";;
- # Guess yes on BeOS.
- beos*) gl_cv_func_printf_enomem="guessing yes";;
- # Guess yes on Haiku.
- haiku*) gl_cv_func_printf_enomem="guessing yes";;
- # If we don't know, assume the worst.
- *) gl_cv_func_printf_enomem="guessing no";;
+ # Guess yes on glibc systems.
+ *-gnu* | gnu*) gl_cv_func_printf_enomem="guessing yes";;
+ # Guess yes on Solaris.
+ solaris*) gl_cv_func_printf_enomem="guessing yes";;
+ # Guess yes on AIX.
+ aix*) gl_cv_func_printf_enomem="guessing yes";;
+ # Guess yes on HP-UX/hppa.
+ hpux*) case "$host_cpu" in
+ hppa*) gl_cv_func_printf_enomem="guessing yes";;
+ *) gl_cv_func_printf_enomem="guessing no";;
+ esac
+ ;;
+ # Guess yes on IRIX.
+ irix*) gl_cv_func_printf_enomem="guessing yes";;
+ # Guess yes on OSF/1.
+ osf*) gl_cv_func_printf_enomem="guessing yes";;
+ # Guess yes on BeOS.
+ beos*) gl_cv_func_printf_enomem="guessing yes";;
+ # Guess yes on Haiku.
+ haiku*) gl_cv_func_printf_enomem="guessing yes";;
+ # Guess no on Android.
+ linux*-android*) gl_cv_func_printf_enomem="guessing no";;
+ # If we don't know, obey --enable-cross-guesses.
+ *) gl_cv_func_printf_enomem="$gl_cross_guess_normal";;
esac
changequote([,])dnl
fi
dnl terminated. (ISO C99, POSIX:2001)
dnl Result is gl_cv_func_snprintf_truncation_c99.
-AC_DEFUN([gl_SNPRINTF_TRUNCATION_C99],
+AC_DEFUN_ONCE([gl_SNPRINTF_TRUNCATION_C99],
[
AC_REQUIRE([AC_PROG_CC])
AC_REQUIRE([AC_CANONICAL_HOST]) dnl for cross-compiles
+ AC_REQUIRE([gl_SNPRINTF_PRESENCE])
AC_CACHE_CHECK([whether snprintf truncates the result as in C99],
[gl_cv_func_snprintf_truncation_c99],
[
[AC_LANG_SOURCE([[
#include <stdio.h>
#include <string.h>
+#if HAVE_SNPRINTF
+# define my_snprintf snprintf
+#else
+# include <stdarg.h>
+static int my_snprintf (char *buf, int size, const char *format, ...)
+{
+ va_list args;
+ int ret;
+ va_start (args, format);
+ ret = vsnprintf (buf, size, format, args);
+ va_end (args);
+ return ret;
+}
+#endif
static char buf[100];
int main ()
{
strcpy (buf, "ABCDEF");
- snprintf (buf, 3, "%d %d", 4567, 89);
+ my_snprintf (buf, 3, "%d %d", 4567, 89);
if (memcmp (buf, "45\0DEF", 6) != 0)
return 1;
return 0;
changequote(,)dnl
case "$host_os" in
# Guess yes on glibc systems.
- *-gnu*) gl_cv_func_snprintf_truncation_c99="guessing yes";;
+ *-gnu* | gnu*) gl_cv_func_snprintf_truncation_c99="guessing yes";;
+ # Guess yes on musl systems.
+ *-musl*) gl_cv_func_snprintf_truncation_c99="guessing yes";;
# Guess yes on FreeBSD >= 5.
- freebsd[1-4]*) gl_cv_func_snprintf_truncation_c99="guessing no";;
+ freebsd[1-4].*) gl_cv_func_snprintf_truncation_c99="guessing no";;
freebsd* | kfreebsd*) gl_cv_func_snprintf_truncation_c99="guessing yes";;
- # Guess yes on MacOS X >= 10.3.
+ midnightbsd*) gl_cv_func_snprintf_truncation_c99="guessing yes";;
+ # Guess yes on Mac OS X >= 10.3.
darwin[1-6].*) gl_cv_func_snprintf_truncation_c99="guessing no";;
darwin*) gl_cv_func_snprintf_truncation_c99="guessing yes";;
# Guess yes on OpenBSD >= 3.9.
netbsd*) gl_cv_func_snprintf_truncation_c99="guessing yes";;
# Guess yes on BeOS.
beos*) gl_cv_func_snprintf_truncation_c99="guessing yes";;
- # If we don't know, assume the worst.
- *) gl_cv_func_snprintf_truncation_c99="guessing no";;
+ # Guess yes on Android.
+ linux*-android*) gl_cv_func_snprintf_truncation_c99="guessing yes";;
+ # Guess no on native Windows.
+ mingw*) gl_cv_func_snprintf_truncation_c99="guessing no";;
+ # If we don't know, obey --enable-cross-guesses.
+ *) gl_cv_func_snprintf_truncation_c99="$gl_cross_guess_normal";;
esac
changequote([,])dnl
])
[
AC_REQUIRE([AC_PROG_CC])
AC_REQUIRE([AC_CANONICAL_HOST]) dnl for cross-compiles
+ AC_REQUIRE([gl_SNPRINTF_PRESENCE])
AC_CACHE_CHECK([whether snprintf returns a byte count as in C99],
[gl_cv_func_snprintf_retval_c99],
[
[AC_LANG_SOURCE([[
#include <stdio.h>
#include <string.h>
+#if HAVE_SNPRINTF
+# define my_snprintf snprintf
+#else
+# include <stdarg.h>
+static int my_snprintf (char *buf, int size, const char *format, ...)
+{
+ va_list args;
+ int ret;
+ va_start (args, format);
+ ret = vsnprintf (buf, size, format, args);
+ va_end (args);
+ return ret;
+}
+#endif
static char buf[100];
int main ()
{
strcpy (buf, "ABCDEF");
- if (snprintf (buf, 3, "%d %d", 4567, 89) != 7)
+ if (my_snprintf (buf, 3, "%d %d", 4567, 89) != 7)
return 1;
- if (snprintf (buf, 0, "%d %d", 4567, 89) != 7)
+ if (my_snprintf (buf, 0, "%d %d", 4567, 89) != 7)
return 2;
- if (snprintf (NULL, 0, "%d %d", 4567, 89) != 7)
+ if (my_snprintf (NULL, 0, "%d %d", 4567, 89) != 7)
return 3;
return 0;
}]])],
[gl_cv_func_snprintf_retval_c99=yes],
[gl_cv_func_snprintf_retval_c99=no],
- [
+ [case "$host_os" in
changequote(,)dnl
- case "$host_os" in
# Guess yes on glibc systems.
- *-gnu*) gl_cv_func_snprintf_retval_c99="guessing yes";;
+ *-gnu* | gnu*) gl_cv_func_snprintf_retval_c99="guessing yes";;
+ # Guess yes on musl systems.
+ *-musl*) gl_cv_func_snprintf_retval_c99="guessing yes";;
# Guess yes on FreeBSD >= 5.
- freebsd[1-4]*) gl_cv_func_snprintf_retval_c99="guessing no";;
+ freebsd[1-4].*) gl_cv_func_snprintf_retval_c99="guessing no";;
freebsd* | kfreebsd*) gl_cv_func_snprintf_retval_c99="guessing yes";;
- # Guess yes on MacOS X >= 10.3.
+ midnightbsd*) gl_cv_func_snprintf_retval_c99="guessing yes";;
+ # Guess yes on Mac OS X >= 10.3.
darwin[1-6].*) gl_cv_func_snprintf_retval_c99="guessing no";;
darwin*) gl_cv_func_snprintf_retval_c99="guessing yes";;
# Guess yes on OpenBSD >= 3.9.
netbsd*) gl_cv_func_snprintf_retval_c99="guessing yes";;
# Guess yes on BeOS.
beos*) gl_cv_func_snprintf_retval_c99="guessing yes";;
- # If we don't know, assume the worst.
- *) gl_cv_func_snprintf_retval_c99="guessing no";;
- esac
+ # Guess yes on Android.
+ linux*-android*) gl_cv_func_snprintf_retval_c99="guessing yes";;
changequote([,])dnl
+ # Guess yes on MSVC, no on mingw.
+ mingw*) AC_EGREP_CPP([Known], [
+#ifdef _MSC_VER
+ Known
+#endif
+ ],
+ [gl_cv_func_snprintf_retval_c99="guessing yes"],
+ [gl_cv_func_snprintf_retval_c99="guessing no"])
+ ;;
+ # If we don't know, obey --enable-cross-guesses.
+ *) gl_cv_func_snprintf_retval_c99="$gl_cross_guess_normal";;
+ esac
])
])
])
[
AC_REQUIRE([AC_PROG_CC])
AC_REQUIRE([AC_CANONICAL_HOST]) dnl for cross-compiles
+ AC_REQUIRE([gl_SNPRINTF_PRESENCE])
AC_CACHE_CHECK([whether snprintf fully supports the 'n' directive],
[gl_cv_func_snprintf_directive_n],
[
[AC_LANG_SOURCE([[
#include <stdio.h>
#include <string.h>
+#if HAVE_SNPRINTF
+# define my_snprintf snprintf
+#else
+# include <stdarg.h>
+static int my_snprintf (char *buf, int size, const char *format, ...)
+{
+ va_list args;
+ int ret;
+ va_start (args, format);
+ ret = vsnprintf (buf, size, format, args);
+ va_end (args);
+ return ret;
+}
+#endif
static char fmtstring[10];
static char buf[100];
int main ()
support %n in format strings in read-only memory but not in writable
memory. */
strcpy (fmtstring, "%d %n");
- snprintf (buf, 4, fmtstring, 12345, &count, 33, 44, 55);
+ my_snprintf (buf, 4, fmtstring, 12345, &count, 33, 44, 55);
if (count != 6)
return 1;
return 0;
[gl_cv_func_snprintf_directive_n=yes],
[gl_cv_func_snprintf_directive_n=no],
[
-changequote(,)dnl
case "$host_os" in
- # Guess yes on glibc systems.
- *-gnu*) gl_cv_func_snprintf_directive_n="guessing yes";;
+ # Guess no on glibc when _FORTIFY_SOURCE >= 2.
+ *-gnu* | gnu*) AC_COMPILE_IFELSE(
+ [AC_LANG_SOURCE(
+ [[#if _FORTIFY_SOURCE >= 2
+ error fail
+ #endif
+ ]])],
+ [gl_cv_func_snprintf_directive_n="guessing yes"],
+ [gl_cv_func_snprintf_directive_n="guessing no"])
+ ;;
+changequote(,)dnl
+ # Guess yes on musl systems.
+ *-musl*) gl_cv_func_snprintf_directive_n="guessing yes";;
# Guess yes on FreeBSD >= 5.
- freebsd[1-4]*) gl_cv_func_snprintf_directive_n="guessing no";;
+ freebsd[1-4].*) gl_cv_func_snprintf_directive_n="guessing no";;
freebsd* | kfreebsd*) gl_cv_func_snprintf_directive_n="guessing yes";;
- # Guess yes on MacOS X >= 10.3.
+ midnightbsd*) gl_cv_func_snprintf_directive_n="guessing yes";;
+ # Guess yes on Mac OS X >= 10.3.
darwin[1-6].*) gl_cv_func_snprintf_directive_n="guessing no";;
darwin*) gl_cv_func_snprintf_directive_n="guessing yes";;
# Guess yes on Solaris >= 2.6.
netbsd*) gl_cv_func_snprintf_directive_n="guessing yes";;
# Guess yes on BeOS.
beos*) gl_cv_func_snprintf_directive_n="guessing yes";;
- # If we don't know, assume the worst.
- *) gl_cv_func_snprintf_directive_n="guessing no";;
- esac
+ # Guess no on Android.
+ linux*-android*) gl_cv_func_snprintf_directive_n="guessing no";;
+ # Guess no on native Windows.
+ mingw*) gl_cv_func_snprintf_directive_n="guessing no";;
+ # If we don't know, obey --enable-cross-guesses.
+ *) gl_cv_func_snprintf_directive_n="$gl_cross_guess_normal";;
changequote([,])dnl
+ esac
])
])
])
AC_DEFUN([gl_SNPRINTF_SIZE1],
[
AC_REQUIRE([AC_PROG_CC])
+ AC_REQUIRE([AC_CANONICAL_HOST]) dnl for cross-compiles
+ AC_REQUIRE([gl_SNPRINTF_PRESENCE])
AC_CACHE_CHECK([whether snprintf respects a size of 1],
[gl_cv_func_snprintf_size1],
[
AC_RUN_IFELSE(
[AC_LANG_SOURCE([[
#include <stdio.h>
+#if HAVE_SNPRINTF
+# define my_snprintf snprintf
+#else
+# include <stdarg.h>
+static int my_snprintf (char *buf, int size, const char *format, ...)
+{
+ va_list args;
+ int ret;
+ va_start (args, format);
+ ret = vsnprintf (buf, size, format, args);
+ va_end (args);
+ return ret;
+}
+#endif
int main()
{
static char buf[8] = { 'D', 'E', 'A', 'D', 'B', 'E', 'E', 'F' };
- snprintf (buf, 1, "%d", 12345);
+ my_snprintf (buf, 1, "%d", 12345);
return buf[1] != 'E';
}]])],
[gl_cv_func_snprintf_size1=yes],
[gl_cv_func_snprintf_size1=no],
- [gl_cv_func_snprintf_size1="guessing yes"])
+ [case "$host_os" in
+ # Guess yes on Android.
+ linux*-android*) gl_cv_func_snprintf_size1="guessing yes" ;;
+ # Guess yes on native Windows.
+ mingw*) gl_cv_func_snprintf_size1="guessing yes" ;;
+ *) gl_cv_func_snprintf_size1="guessing yes" ;;
+ esac
+ ])
])
])
changequote(,)dnl
case "$host_os" in
# Guess yes on glibc systems.
- *-gnu*) gl_cv_func_vsnprintf_zerosize_c99="guessing yes";;
+ *-gnu* | gnu*) gl_cv_func_vsnprintf_zerosize_c99="guessing yes";;
+ # Guess yes on musl systems.
+ *-musl*) gl_cv_func_vsnprintf_zerosize_c99="guessing yes";;
# Guess yes on FreeBSD >= 5.
- freebsd[1-4]*) gl_cv_func_vsnprintf_zerosize_c99="guessing no";;
+ freebsd[1-4].*) gl_cv_func_vsnprintf_zerosize_c99="guessing no";;
freebsd* | kfreebsd*) gl_cv_func_vsnprintf_zerosize_c99="guessing yes";;
- # Guess yes on MacOS X >= 10.3.
+ midnightbsd*) gl_cv_func_vsnprintf_zerosize_c99="guessing yes";;
+ # Guess yes on Mac OS X >= 10.3.
darwin[1-6].*) gl_cv_func_vsnprintf_zerosize_c99="guessing no";;
darwin*) gl_cv_func_vsnprintf_zerosize_c99="guessing yes";;
# Guess yes on Cygwin.
netbsd*) gl_cv_func_vsnprintf_zerosize_c99="guessing yes";;
# Guess yes on BeOS.
beos*) gl_cv_func_vsnprintf_zerosize_c99="guessing yes";;
- # Guess yes on mingw.
+ # Guess yes on Android.
+ linux*-android*) gl_cv_func_vsnprintf_zerosize_c99="guessing yes";;
+ # Guess yes on native Windows.
mingw* | pw*) gl_cv_func_vsnprintf_zerosize_c99="guessing yes";;
- # If we don't know, assume the worst.
- *) gl_cv_func_vsnprintf_zerosize_c99="guessing no";;
+ # If we don't know, obey --enable-cross-guesses.
+ *) gl_cv_func_vsnprintf_zerosize_c99="$gl_cross_guess_normal";;
esac
changequote([,])dnl
])
dnl 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20
dnl glibc 2.5 . . . . . . . . . . . . . . . . . . . .
dnl glibc 2.3.6 . . . . # . . . . . . . . . . . . . . .
+dnl FreeBSD 13.0 . . . . # . . . . . . . . # . . . . . .
dnl FreeBSD 5.4, 6.1 . . . . # . . . . . . # . # . . . . . .
-dnl MacOS X 10.5.8 . . . # # . . . . . . # . . . . . . . .
-dnl MacOS X 10.3.9 . . . . # . . . . . . # . # . . . . . .
+dnl Mac OS X 10.13.5 . . . # # . # . . . . . . . . . . # . .
+dnl Mac OS X 10.5.8 . . . # # . . . . . . # . . . . . . . .
+dnl Mac OS X 10.3.9 . . . . # . . . . . . # . # . . . . . .
+dnl OpenBSD 6.0, 6.7 . . . . # . . . . . . . . # . . . . . .
dnl OpenBSD 3.9, 4.0 . . # # # # . # . # . # . # . . . . . .
dnl Cygwin 1.7.0 (2009) . . . # . . . ? . . . . . ? . . . . . .
dnl Cygwin 1.5.25 (2008) . . . # # . . # . . . . . # . . . . . .
dnl Cygwin 1.5.19 (2006) # . . # # # . # . # . # # # . . . . . .
-dnl Solaris 11 2010-11 . . # # # . . # . . . # . . . . . . . .
+dnl Solaris 11.4 . . # # # . . # . . . # . . . . . . . .
+dnl Solaris 11.3 . . . . # . . # . . . . . . . . . . . .
+dnl Solaris 11.0 . . # # # . . # . . . # . . . . . . . .
dnl Solaris 10 . . # # # . . # . . . # # . . . . . . .
dnl Solaris 2.6 ... 9 # . # # # # . # . . . # # . . . # . . .
dnl Solaris 2.5.1 # . # # # # . # . . . # . . # # # # # #
-dnl AIX 5.2, 7.1 . . # # # . . . . . . # . . . . . . . .
+dnl AIX 7.1 . . # # # . . . . . . # # . . . . . . .
+dnl AIX 5.2 . . # # # . . . . . . # . . . . . . . .
dnl AIX 4.3.2, 5.1 # . # # # # . . . . . # . . . . # . . .
dnl HP-UX 11.31 . . . . # . . . . . . # . . . . # # . .
dnl HP-UX 11.{00,11,23} # . . . # # . . . . . # . . . . # # . #
dnl IRIX 6.5 # . # # # # . # . . . # . . . . # . . .
dnl OSF/1 5.1 # . # # # # . . . . . # . . . . # . . #
dnl OSF/1 4.0d # . # # # # . . . . . # . . # # # # # #
+dnl NetBSD 9.0 . . . . # . . . . . . . . . . . . . . .
dnl NetBSD 5.0 . . . # # . . . . . . # . # . . . . . .
dnl NetBSD 4.0 . ? ? ? ? ? . ? . ? ? ? ? ? . . . ? ? ?
dnl NetBSD 3.0 . . . . # # . ? # # ? # . # . . . . . .
dnl Haiku . . . # # # . # . . . . . ? . . ? . . .
dnl BeOS # # . # # # . ? # . ? . # ? . . ? . . .
-dnl mingw # # # # # # . . # # . # # ? . # # # . .
+dnl Android 4.3 . . # # # # # # . # . # . # . . . # . .
+dnl old mingw / msvcrt # # # # # # . . # # . # # ? . # # # . .
+dnl MSVC 9 # # # # # # # . # # . # # ? # # # # . .
+dnl mingw 2009-2011 . # . # . . . . # # . . . ? . . . . . .
+dnl mingw-w64 2011 # # # # # # . . # # . # # ? . # # # . .
projects / platform / upstream / m4.git / blobdiff