-# inttypes.m4 serial 10
+# inttypes.m4 serial 11
dnl Copyright (C) 2006-2007 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 Also be careful to define __STDC_LIMIT_MACROS only when gnulib's
dnl <inttypes.h> is going to be created, and to avoid redefinition warnings
dnl if the __STDC_LIMIT_MACROS is already defined through the CPPFLAGS.
- AC_DEFINE([__STDC_LIMIT_MACROS_TRIGGER], 1,
+ AC_DEFINE([GL_TRIGGER_STDC_LIMIT_MACROS], 1,
[Define to make the limit macros in <stdint.h> visible.])
AH_VERBATIM([__STDC_LIMIT_MACROS_ZZZ],
[/* Ensure that <stdint.h> defines the limit macros, since gnulib's
<inttypes.h> relies on them. */
-#if defined __cplusplus && !defined __STDC_LIMIT_MACROS && __STDC_LIMIT_MACROS_TRIGGER
+#if defined __cplusplus && !defined __STDC_LIMIT_MACROS && GL_TRIGGER_STDC_LIMIT_MACROS
# define __STDC_LIMIT_MACROS 1
#endif
])
HAVE_DECL_STRTOUMAX=0
fi
+ gl_INTTYPES_CHECK_LONG_LONG_INT_CONDITION(
+ [INT32_MAX_LT_INTMAX_MAX],
+ [defined INT32_MAX && defined INTMAX_MAX],
+ [INT32_MAX < INTMAX_MAX],
+ [sizeof (int) < sizeof (long long int)])
+ gl_INTTYPES_CHECK_LONG_LONG_INT_CONDITION(
+ [INT64_MAX_EQ_LONG_MAX],
+ [defined INT64_MAX],
+ [INT64_MAX == LONG_MAX],
+ [sizeof (long long int) == sizeof (long int)])
+ gl_INTTYPES_CHECK_LONG_LONG_INT_CONDITION(
+ [UINT32_MAX_LT_UINTMAX_MAX],
+ [defined UINT32_MAX && defined UINTMAX_MAX],
+ [UINT32_MAX < UINTMAX_MAX],
+ [sizeof (unsigned int) < sizeof (unsigned long long int)])
+ gl_INTTYPES_CHECK_LONG_LONG_INT_CONDITION(
+ [UINT64_MAX_EQ_ULONG_MAX],
+ [defined UINT64_MAX],
+ [UINT64_MAX == ULONG_MAX],
+ [sizeof (unsigned long long int) == sizeof (unsigned long int)])
+
INTTYPES_H='inttypes.h'
fi
AC_SUBST(INTTYPES_H)
])
+# Define the symbol $1 to be 1 if the condition is true, 0 otherwise.
+# If $2 is true, the condition is $3; otherwise if long long int is supported
+# approximate the condition with $4; otherwise, assume the condition is false.
+# The condition should work on all C99 platforms; the approximations should be
+# good enough to work on all practical pre-C99 platforms.
+# $2 is evaluated by the C preprocessor, $3 and $4 as compile-time constants.
+AC_DEFUN([gl_INTTYPES_CHECK_LONG_LONG_INT_CONDITION],
+[
+ AC_CACHE_CHECK([whether $3],
+ [gl_cv_test_$1],
+ [AC_COMPILE_IFELSE(
+ [AC_LANG_PROGRAM(
+ [[/* Work also in C++ mode. */
+ #define __STDC_LIMIT_MACROS 1
+
+ /* Work if build is not clean. */
+ #define _GL_JUST_INCLUDE_SYSTEM_STDINT_H
+
+ #include <limits.h>
+ #if HAVE_STDINT_H
+ #include <stdint.h>
+ #endif
+
+ #if $2
+ #define CONDITION ($3)
+ #elif HAVE_LONG_LONG_INT
+ #define CONDITION ($4)
+ #else
+ #define CONDITION 0
+ #endif
+ int test[CONDITION ? 1 : -1];]])],
+ [gl_cv_test_$1=yes],
+ [gl_cv_test_$1=no])])
+ if test $gl_cv_test_$1 = yes; then
+ $1=1;
+ else
+ $1=0;
+ fi
+ AC_SUBST([$1])
+])
+
AC_DEFUN([gl_INTTYPES_MODULE_INDICATOR],
[
dnl Use AC_REQUIRE here, so that the default settings are expanded once only.