-# inttypes.m4 serial 8
-dnl Copyright (C) 2006-2007 Free Software Foundation, Inc.
+# inttypes.m4 serial 26
+dnl Copyright (C) 2006-2014 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.
AC_DEFUN([gl_INTTYPES_H],
[
- AC_REQUIRE([gl_STDINT_H])
- AC_REQUIRE([gt_INTTYPES_PRI])
- AC_CHECK_DECLS_ONCE([imaxabs])
- AC_CHECK_DECLS_ONCE([imaxdiv])
- AC_CHECK_DECLS_ONCE([strtoimax])
- AC_CHECK_DECLS_ONCE([strtoumax])
-
- dnl Now see if we need a substitute <inttypes.h>.
- dnl A complete <inttypes.h> requires
- dnl - a complete <stdint.h>,
- dnl - the existence of an <inttypes.h>,
- dnl - that imaxabs, imaxdiv, strtoimax, strtoumax are declared,
- dnl - some additional tests.
- AC_CACHE_CHECK([whether inttypes.h conforms to C99],
- [gl_cv_header_working_inttypes_h],
- [gl_cv_header_working_inttypes_h=no
- if test "$gl_cv_header_working_stdint_h" = yes \
- && test $ac_cv_header_inttypes_h = yes \
- && test "$ac_cv_have_decl_imaxabs" = yes \
- && test "$ac_cv_have_decl_imaxdiv" = yes \
- && test "$ac_cv_have_decl_strtoimax" = yes \
- && test "$ac_cv_have_decl_strtoumax" = yes; then
- AC_COMPILE_IFELSE([
- AC_LANG_PROGRAM([
-#include <stddef.h>
-#define __STDC_LIMIT_MACROS 1 /* to make it work also in C++ mode */
-#define __STDC_CONSTANT_MACROS 1 /* to make it work also in C++ mode */
-#define __STDC_FORMAT_MACROS 1 /* to make it work also in C++ mode */
-#include ABSOLUTE_INTTYPES_H
-
-/* No need to duplicate the tests of stdint.m4; they are subsumed by
- $gl_cv_header_working_stdint_h = yes. */
-
-/* Tests for macros supposed to be defined in inttypes.h. */
+ AC_REQUIRE([gl_INTTYPES_INCOMPLETE])
+ gl_INTTYPES_PRI_SCN
+])
-const char *k = /* implicit string concatenation */
-#ifdef INT8_MAX
- PRId8 PRIi8
-#endif
-#ifdef UINT8_MAX
- PRIo8 PRIu8 PRIx8 PRIX8
-#endif
-#ifdef INT16_MAX
- PRId16 PRIi16
-#endif
-#ifdef UINT16_MAX
- PRIo16 PRIu16 PRIx16 PRIX16
-#endif
-#ifdef INT32_MAX
- PRId32 PRIi32
-#endif
-#ifdef UINT32_MAX
- PRIo32 PRIu32 PRIx32 PRIX32
-#endif
-#ifdef INT64_MAX
- PRId64 PRIi64
-#endif
-#ifdef UINT64_MAX
- PRIo64 PRIu64 PRIx64 PRIX64
-#endif
- PRIdLEAST8 PRIiLEAST8 PRIoLEAST8 PRIuLEAST8 PRIxLEAST8 PRIXLEAST8
- PRIdLEAST16 PRIiLEAST16 PRIoLEAST16 PRIuLEAST16 PRIxLEAST16 PRIXLEAST16
- PRIdLEAST32 PRIiLEAST32 PRIoLEAST32 PRIuLEAST32 PRIxLEAST32 PRIXLEAST32
- PRIdLEAST64 PRIiLEAST64
- PRIoLEAST64 PRIuLEAST64 PRIxLEAST64 PRIXLEAST64
- PRIdFAST8 PRIiFAST8 PRIoFAST8 PRIuFAST8 PRIxFAST8 PRIXFAST8
- PRIdFAST16 PRIiFAST16 PRIoFAST16 PRIuFAST16 PRIxFAST16 PRIXFAST16
- PRIdFAST32 PRIiFAST32 PRIoFAST32 PRIuFAST32 PRIxFAST32 PRIXFAST32
- PRIdFAST64 PRIiFAST64
- PRIoFAST64 PRIuFAST64 PRIxFAST64 PRIXFAST64
- PRIdMAX PRIiMAX PRIoMAX PRIuMAX PRIxMAX PRIXMAX
-#ifdef INTPTR_MAX
- PRIdPTR PRIiPTR
-#endif
-#ifdef UINTPTR_MAX
- PRIoPTR PRIuPTR PRIxPTR PRIXPTR
-#endif
- ;
-const char *l = /* implicit string concatenation */
-#ifdef INT8_MAX
- SCNd8 SCNi8
-#endif
-#ifdef UINT8_MAX
- SCNo8 SCNu8 SCNx8
-#endif
-#ifdef INT16_MAX
- SCNd16 SCNi16
-#endif
-#ifdef UINT16_MAX
- SCNo16 SCNu16 SCNx16
-#endif
-#ifdef INT32_MAX
- SCNd32 SCNi32
-#endif
-#ifdef UINT32_MAX
- SCNo32 SCNu32 SCNx32
-#endif
-#ifdef INT64_MAX
- SCNd64 SCNi64
-#endif
-#ifdef UINT64_MAX
- SCNo64 SCNu64 SCNx64
-#endif
- SCNdLEAST8 SCNiLEAST8 SCNoLEAST8 SCNuLEAST8 SCNxLEAST8
- SCNdLEAST16 SCNiLEAST16 SCNoLEAST16 SCNuLEAST16 SCNxLEAST16
- SCNdLEAST32 SCNiLEAST32 SCNoLEAST32 SCNuLEAST32 SCNxLEAST32
- SCNdLEAST64 SCNiLEAST64
- SCNoLEAST64 SCNuLEAST64 SCNxLEAST64
- SCNdFAST8 SCNiFAST8 SCNoFAST8 SCNuFAST8 SCNxFAST8
- SCNdFAST16 SCNiFAST16 SCNoFAST16 SCNuFAST16 SCNxFAST16
- SCNdFAST32 SCNiFAST32 SCNoFAST32 SCNuFAST32 SCNxFAST32
- SCNdFAST64 SCNiFAST64
- SCNoFAST64 SCNuFAST64 SCNxFAST64
- SCNdMAX SCNiMAX SCNoMAX SCNuMAX SCNxMAX
-#ifdef INTPTR_MAX
- SCNdPTR SCNiPTR
-#endif
-#ifdef UINTPTR_MAX
- SCNoPTR SCNuPTR SCNxPTR
-#endif
- ;
- ])],
- [gl_cv_header_working_inttypes_h=yes])
- fi])
+AC_DEFUN_ONCE([gl_INTTYPES_INCOMPLETE],
+[
+ AC_REQUIRE([gl_STDINT_H])
+ AC_CHECK_HEADERS_ONCE([inttypes.h])
dnl Override <inttypes.h> always, so that the portability warnings work.
- if false && test $gl_cv_header_working_inttypes_h = yes; then
- dnl Use the existing <inttypes.h>.
- INTTYPES_H=''
- else
-
- AC_REQUIRE([gl_INTTYPES_H_DEFAULTS])
- dnl AC_INCLUDES_DEFAULT defines $ac_cv_header_inttypes_h.
- if test $ac_cv_header_inttypes_h = yes; then
- gl_ABSOLUTE_HEADER([inttypes.h])
- ABSOLUTE_INTTYPES_H=\"$gl_cv_absolute_inttypes_h\"
- else
- ABSOLUTE_INTTYPES_H=\"no/such/file/inttypes.h\"
- fi
- AC_SUBST([ABSOLUTE_INTTYPES_H])
-
- PRIPTR_PREFIX=
- if test -n "$STDINT_H"; then
- dnl Using the gnulib <stdint.h>. It always defines intptr_t to 'long'.
- PRIPTR_PREFIX='"l"'
- else
- dnl Using the system's <stdint.h>.
- for glpfx in '' l ll I64; do
- case $glpfx in
- '') gltype1='int';;
- l) gltype1='long int';;
- ll) gltype1='long long int';;
- I64) gltype1='__int64';;
- esac
- AC_COMPILE_IFELSE(
- [AC_LANG_PROGRAM([#include <stdint.h>
- extern intptr_t foo;
- extern $gltype1 foo;])],
- [PRIPTR_PREFIX='"'$glpfx'"'])
- test -n "$PRIPTR_PREFIX" && break
- done
- fi
- AC_SUBST([PRIPTR_PREFIX])
+ AC_REQUIRE([gl_INTTYPES_H_DEFAULTS])
+ gl_CHECK_NEXT_HEADERS([inttypes.h])
- if test "$ac_cv_have_decl_imaxabs" = yes; then
- HAVE_DECL_IMAXABS=1
- else
- HAVE_DECL_IMAXABS=0
- fi
+ AC_REQUIRE([gl_MULTIARCH])
- if test "$ac_cv_have_decl_imaxdiv" = yes; then
- HAVE_DECL_IMAXDIV=1
- else
- HAVE_DECL_IMAXDIV=0
- fi
+ dnl Check for declarations of anything we want to poison if the
+ dnl corresponding gnulib module is not in use.
+ gl_WARN_ON_USE_PREPARE([[#include <inttypes.h>
+ ]], [imaxabs imaxdiv strtoimax strtoumax])
+])
- if test "$ac_cv_have_decl_strtoimax" = yes; then
- HAVE_DECL_STRTOIMAX=1
- else
- HAVE_DECL_STRTOIMAX=0
- fi
+# Ensure that the PRI* and SCN* macros are defined appropriately.
+AC_DEFUN([gl_INTTYPES_PRI_SCN],
+[
+ AC_REQUIRE([gt_INTTYPES_PRI])
- if test "$ac_cv_have_decl_strtoumax" = yes; then
- HAVE_DECL_STRTOUMAX=1
- else
- HAVE_DECL_STRTOUMAX=0
- fi
+ PRIPTR_PREFIX=
+ if test -n "$STDINT_H"; then
+ dnl Using the gnulib <stdint.h>. It always defines intptr_t to 'long'.
+ PRIPTR_PREFIX='"l"'
+ else
+ dnl Using the system's <stdint.h>.
+ for glpfx in '' l ll I64; do
+ case $glpfx in
+ '') gltype1='int';;
+ l) gltype1='long int';;
+ ll) gltype1='long long int';;
+ I64) gltype1='__int64';;
+ esac
+ AC_COMPILE_IFELSE(
+ [AC_LANG_PROGRAM([[#include <stdint.h>
+ extern intptr_t foo;
+ extern $gltype1 foo;]])],
+ [PRIPTR_PREFIX='"'$glpfx'"'])
+ test -n "$PRIPTR_PREFIX" && break
+ done
+ fi
+ AC_SUBST([PRIPTR_PREFIX])
+
+ 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)])
+ if test $APPLE_UNIVERSAL_BUILD = 0; then
+ 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)])
+ else
+ INT64_MAX_EQ_LONG_MAX=-1
+ fi
+ 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)])
+ if test $APPLE_UNIVERSAL_BUILD = 0; then
+ 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)])
+ else
+ UINT64_MAX_EQ_ULONG_MAX=-1
+ fi
+])
- INTTYPES_H='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(INTTYPES_H)
+ AC_SUBST([$1])
])
AC_DEFUN([gl_INTTYPES_MODULE_INDICATOR],
[
dnl Use AC_REQUIRE here, so that the default settings are expanded once only.
AC_REQUIRE([gl_INTTYPES_H_DEFAULTS])
- GNULIB_[]m4_translit([$1],[abcdefghijklmnopqrstuvwxyz./-],[ABCDEFGHIJKLMNOPQRSTUVWXYZ___])=1
+ gl_MODULE_INDICATOR_SET_VARIABLE([$1])
])
AC_DEFUN([gl_INTTYPES_H_DEFAULTS],
HAVE_DECL_IMAXDIV=1; AC_SUBST([HAVE_DECL_IMAXDIV])
HAVE_DECL_STRTOIMAX=1; AC_SUBST([HAVE_DECL_STRTOIMAX])
HAVE_DECL_STRTOUMAX=1; AC_SUBST([HAVE_DECL_STRTOUMAX])
+ REPLACE_STRTOIMAX=0; AC_SUBST([REPLACE_STRTOIMAX])
+ REPLACE_STRTOUMAX=0; AC_SUBST([REPLACE_STRTOUMAX])
+ INT32_MAX_LT_INTMAX_MAX=1; AC_SUBST([INT32_MAX_LT_INTMAX_MAX])
+ INT64_MAX_EQ_LONG_MAX='defined _LP64'; AC_SUBST([INT64_MAX_EQ_LONG_MAX])
+ PRI_MACROS_BROKEN=0; AC_SUBST([PRI_MACROS_BROKEN])
+ PRIPTR_PREFIX=__PRIPTR_PREFIX; AC_SUBST([PRIPTR_PREFIX])
+ UINT32_MAX_LT_UINTMAX_MAX=1; AC_SUBST([UINT32_MAX_LT_UINTMAX_MAX])
+ UINT64_MAX_EQ_ULONG_MAX='defined _LP64'; AC_SUBST([UINT64_MAX_EQ_ULONG_MAX])
])
projects / gnulib.git / blobdiff