Simpler version of strtoumax module.

1 files changed, 5 insertions, 245 deletions

diff --git a/m4/inttypes.m4 b/m4/inttypes.m4
index 92a4ac019f5..46a00c6d7aa 100644
--- a/m4/inttypes.m4
+++ b/m4/inttypes.m4
@@ -1,4 +1,4 @@
-# inttypes.m4 serial 18
+# inttypes.m4 serial 19
 dnl Copyright (C) 2006-2011 Free Software Foundation, Inc.
 dnl This file is free software; the Free Software Foundation
 dnl gives unlimited permission to copy and/or distribute it,
@@ -10,138 +10,11 @@ dnl Test whether <inttypes.h> is supported or must be substituted.
 AC_DEFUN([gl_INTTYPES_H],
 [
   AC_REQUIRE([gl_STDINT_H])
-  AC_REQUIRE([gt_INTTYPES_PRI])
-  AC_CHECK_HEADERS_ONCE([inttypes.h])
-  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 */
-#define _GL_JUST_INCLUDE_SYSTEM_INTTYPES_H /* work if build isn't clean */
-#include <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.  */
-
-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])
 
   dnl Override <inttypes.h> always, so that the portability warnings work.
   AC_REQUIRE([gl_INTTYPES_H_DEFAULTS])
   gl_CHECK_NEXT_HEADERS([inttypes.h])
 
-  AC_REQUIRE([gl_MULTIARCH])
-
   dnl Ensure that <stdint.h> defines the limit macros, since gnulib's
   dnl <inttypes.h> relies on them.  This macro is only needed when a
   dnl C++ compiler is in use; it has no effect for a C compiler.
@@ -158,129 +31,12 @@ const char *l = /* implicit string concatenation */
 #endif
 ])
 
-  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 "$PRIPTR_PREFIX" && break
-    done
-  fi
-  AC_SUBST([PRIPTR_PREFIX])
-
-  if test "$ac_cv_have_decl_imaxabs" = yes; then
-    HAVE_DECL_IMAXABS=1
-  else
-    HAVE_DECL_IMAXABS=0
-  fi
-
-  if test "$ac_cv_have_decl_imaxdiv" = yes; then
-    HAVE_DECL_IMAXDIV=1
-  else
-    HAVE_DECL_IMAXDIV=0
-  fi
-
-  if test "$ac_cv_have_decl_strtoimax" = yes; then
-    HAVE_DECL_STRTOIMAX=1
-  else
-    HAVE_DECL_STRTOIMAX=0
-  fi
-
-  if test "$ac_cv_have_decl_strtoumax" = yes; then
-    HAVE_DECL_STRTOUMAX=1
-  else
-    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)])
-  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
-
   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])
 ])
 
-# 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.
@@ -299,4 +55,8 @@ 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])
+  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])
+  UINT64_MAX_EQ_ULONG_MAX='defined _LP64';  AC_SUBST([UINT64_MAX_EQ_ULONG_MAX])
 ])