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Diff for /embedaddon/libiconv/srcm4/stddef_h.m4 between versions 1.1 and 1.1.1.2

version 1.1, 2012/05/29 09:29:44 version 1.1.1.2, 2021/03/17 13:38:46
Line 1 Line 1
dnl A placeholder for POSIX 2008 <stddef.h>, for platforms that have issues.dnl A placeholder for <stddef.h>, for platforms that have issues.
# stddef_h.m4 serial 4# stddef_h.m4 serial 6
dnl Copyright (C) 2009-2011 Free Software Foundation, Inc.dnl Copyright (C) 2009-2019 Free Software Foundation, Inc.
 dnl This file is free software; the Free Software Foundation  dnl This file is free software; the Free Software Foundation
 dnl gives unlimited permission to copy and/or distribute it,  dnl gives unlimited permission to copy and/or distribute it,
 dnl with or without modifications, as long as this notice is preserved.  dnl with or without modifications, as long as this notice is preserved.
Line 10  AC_DEFUN([gl_STDDEF_H], Line 10  AC_DEFUN([gl_STDDEF_H],
   AC_REQUIRE([gl_STDDEF_H_DEFAULTS])    AC_REQUIRE([gl_STDDEF_H_DEFAULTS])
   AC_REQUIRE([gt_TYPE_WCHAR_T])    AC_REQUIRE([gt_TYPE_WCHAR_T])
   STDDEF_H=    STDDEF_H=
   
     dnl Test whether the type max_align_t exists and whether its alignment
     dnl "is as great as is supported by the implementation in all contexts".
     AC_CACHE_CHECK([for good max_align_t],
       [gl_cv_type_max_align_t],
       [AC_COMPILE_IFELSE(
          [AC_LANG_PROGRAM(
             [[#include <stddef.h>
               unsigned int s = sizeof (max_align_t);
               #if defined __GNUC__ || defined __IBM__ALIGNOF__
               int check1[2 * (__alignof__ (double) <= __alignof__ (max_align_t)) - 1];
               int check2[2 * (__alignof__ (long double) <= __alignof__ (max_align_t)) - 1];
               #endif
             ]])],
          [gl_cv_type_max_align_t=yes],
          [gl_cv_type_max_align_t=no])
       ])
     if test $gl_cv_type_max_align_t = no; then
       HAVE_MAX_ALIGN_T=0
       STDDEF_H=stddef.h
     fi
   
   if test $gt_cv_c_wchar_t = no; then    if test $gt_cv_c_wchar_t = no; then
     HAVE_WCHAR_T=0      HAVE_WCHAR_T=0
     STDDEF_H=stddef.h      STDDEF_H=stddef.h
   fi    fi
   
   AC_CACHE_CHECK([whether NULL can be used in arbitrary expressions],    AC_CACHE_CHECK([whether NULL can be used in arbitrary expressions],
     [gl_cv_decl_null_works],      [gl_cv_decl_null_works],
     [AC_COMPILE_IFELSE([AC_LANG_PROGRAM([[#include <stddef.h>      [AC_COMPILE_IFELSE([AC_LANG_PROGRAM([[#include <stddef.h>
Line 25  AC_DEFUN([gl_STDDEF_H], Line 48  AC_DEFUN([gl_STDDEF_H],
     REPLACE_NULL=1      REPLACE_NULL=1
     STDDEF_H=stddef.h      STDDEF_H=stddef.h
   fi    fi
   
   AC_SUBST([STDDEF_H])    AC_SUBST([STDDEF_H])
   AM_CONDITIONAL([GL_GENERATE_STDDEF_H], [test -n "$STDDEF_H"])    AM_CONDITIONAL([GL_GENERATE_STDDEF_H], [test -n "$STDDEF_H"])
   if test -n "$STDDEF_H"; then    if test -n "$STDDEF_H"; then
Line 43  AC_DEFUN([gl_STDDEF_H_DEFAULTS], Line 67  AC_DEFUN([gl_STDDEF_H_DEFAULTS],
 [  [
   dnl Assume proper GNU behavior unless another module says otherwise.    dnl Assume proper GNU behavior unless another module says otherwise.
   REPLACE_NULL=0;                AC_SUBST([REPLACE_NULL])    REPLACE_NULL=0;                AC_SUBST([REPLACE_NULL])
     HAVE_MAX_ALIGN_T=1;            AC_SUBST([HAVE_MAX_ALIGN_T])
   HAVE_WCHAR_T=1;                AC_SUBST([HAVE_WCHAR_T])    HAVE_WCHAR_T=1;                AC_SUBST([HAVE_WCHAR_T])
 ])  ])
Removed from v.1.1  
changed lines
  Added in v.1.1.1.2

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