kc3-lang/gnulib/m4/string_h.m4

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• Hash : 9746be9c
  Author :
  Date : 2023-01-22T13:01:14
  

  Resolve conflicts for functions introduced in Android API level 23.
  
  * lib/string.in.h (mempcpy): Consider REPLACE_MEMPCPY. Disable
  _GL_CXXALIASWARN invocation on non-glibc systems.
  * m4/string_h.m4 (gl_STRING_H_DEFAULTS): Initialize REPLACE_MEMPCPY.
  * modules/string (Makefile.am): Substitute REPLACE_MEMPCPY.
  * m4/mempcpy.m4 (gl_FUNC_STPCPY): Conditionally set REPLACE_MEMPCPY.
  * modules/mempcpy (configure.ac): Consider REPLACE_MEMPCPY.
  

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• m4/string_h.m4

• # Configure a GNU-like replacement for <string.h>.
  
  # Copyright (C) 2007-2023 Free Software Foundation, Inc.
  # This file is free software; the Free Software Foundation
  # gives unlimited permission to copy and/or distribute it,
  # with or without modifications, as long as this notice is preserved.
  
  # serial 37
  
  # Written by Paul Eggert.
  
  AC_DEFUN_ONCE([gl_STRING_H],
  [
    dnl Ensure to expand the default settings once only, before all statements
    dnl that occur in other macros.
    AC_REQUIRE([gl_STRING_H_DEFAULTS])
    gl_NEXT_HEADERS([string.h])
  
    dnl Check for declarations of anything we want to poison if the
    dnl corresponding gnulib module is not in use, and which is not
    dnl guaranteed by C89.
    gl_WARN_ON_USE_PREPARE([[#include <string.h>
      ]],
      [explicit_bzero ffsl ffsll memmem mempcpy memrchr memset_explicit
       rawmemchr stpcpy stpncpy strchrnul
       strdup strncat strndup strnlen strpbrk strsep strcasestr strtok_r
       strerror_r strerrorname_np sigabbrev_np sigdescr_np strsignal strverscmp])
  
    AC_REQUIRE([AC_C_RESTRICT])
  ])
  
  # gl_STRING_MODULE_INDICATOR([modulename])
  # sets the shell variable that indicates the presence of the given module
  # to a C preprocessor expression that will evaluate to 1.
  # This macro invocation must not occur in macros that are AC_REQUIREd.
  AC_DEFUN([gl_STRING_MODULE_INDICATOR],
  [
    dnl Ensure to expand the default settings once only.
    gl_STRING_H_REQUIRE_DEFAULTS
    gl_MODULE_INDICATOR_SET_VARIABLE([$1])
    dnl Define it also as a C macro, for the benefit of the unit tests.
    gl_MODULE_INDICATOR_FOR_TESTS([$1])
  ])
  
  # Initializes the default values for AC_SUBSTed shell variables.
  # This macro must not be AC_REQUIREd.  It must only be invoked, and only
  # outside of macros or in macros that are not AC_REQUIREd.
  AC_DEFUN([gl_STRING_H_REQUIRE_DEFAULTS],
  [
    m4_defun(GL_MODULE_INDICATOR_PREFIX[_STRING_H_MODULE_INDICATOR_DEFAULTS], [
      gl_MODULE_INDICATOR_INIT_VARIABLE([GNULIB_EXPLICIT_BZERO])
      gl_MODULE_INDICATOR_INIT_VARIABLE([GNULIB_FFSL])
      gl_MODULE_INDICATOR_INIT_VARIABLE([GNULIB_FFSLL])
      gl_MODULE_INDICATOR_INIT_VARIABLE([GNULIB_MEMCHR])
      gl_MODULE_INDICATOR_INIT_VARIABLE([GNULIB_MEMMEM])
      gl_MODULE_INDICATOR_INIT_VARIABLE([GNULIB_MEMPCPY])
      gl_MODULE_INDICATOR_INIT_VARIABLE([GNULIB_MEMRCHR])
      gl_MODULE_INDICATOR_INIT_VARIABLE([GNULIB_MEMSET_EXPLICIT])
      gl_MODULE_INDICATOR_INIT_VARIABLE([GNULIB_RAWMEMCHR])
      gl_MODULE_INDICATOR_INIT_VARIABLE([GNULIB_STPCPY])
      gl_MODULE_INDICATOR_INIT_VARIABLE([GNULIB_STPNCPY])
      gl_MODULE_INDICATOR_INIT_VARIABLE([GNULIB_STRCHRNUL])
      gl_MODULE_INDICATOR_INIT_VARIABLE([GNULIB_STRDUP])
      gl_MODULE_INDICATOR_INIT_VARIABLE([GNULIB_STRNCAT])
      gl_MODULE_INDICATOR_INIT_VARIABLE([GNULIB_STRNDUP])
      gl_MODULE_INDICATOR_INIT_VARIABLE([GNULIB_STRNLEN])
      gl_MODULE_INDICATOR_INIT_VARIABLE([GNULIB_STRPBRK])
      gl_MODULE_INDICATOR_INIT_VARIABLE([GNULIB_STRSEP])
      gl_MODULE_INDICATOR_INIT_VARIABLE([GNULIB_STRSTR])
      gl_MODULE_INDICATOR_INIT_VARIABLE([GNULIB_STRCASESTR])
      gl_MODULE_INDICATOR_INIT_VARIABLE([GNULIB_STRTOK_R])
      gl_MODULE_INDICATOR_INIT_VARIABLE([GNULIB_MBSLEN])
      gl_MODULE_INDICATOR_INIT_VARIABLE([GNULIB_MBSNLEN])
      gl_MODULE_INDICATOR_INIT_VARIABLE([GNULIB_MBSCHR])
      gl_MODULE_INDICATOR_INIT_VARIABLE([GNULIB_MBSRCHR])
      gl_MODULE_INDICATOR_INIT_VARIABLE([GNULIB_MBSSTR])
      gl_MODULE_INDICATOR_INIT_VARIABLE([GNULIB_MBSCASECMP])
      gl_MODULE_INDICATOR_INIT_VARIABLE([GNULIB_MBSNCASECMP])
      gl_MODULE_INDICATOR_INIT_VARIABLE([GNULIB_MBSPCASECMP])
      gl_MODULE_INDICATOR_INIT_VARIABLE([GNULIB_MBSCASESTR])
      gl_MODULE_INDICATOR_INIT_VARIABLE([GNULIB_MBSCSPN])
      gl_MODULE_INDICATOR_INIT_VARIABLE([GNULIB_MBSPBRK])
      gl_MODULE_INDICATOR_INIT_VARIABLE([GNULIB_MBSSPN])
      gl_MODULE_INDICATOR_INIT_VARIABLE([GNULIB_MBSSEP])
      gl_MODULE_INDICATOR_INIT_VARIABLE([GNULIB_MBSTOK_R])
      gl_MODULE_INDICATOR_INIT_VARIABLE([GNULIB_STRERROR])
      gl_MODULE_INDICATOR_INIT_VARIABLE([GNULIB_STRERROR_R])
      gl_MODULE_INDICATOR_INIT_VARIABLE([GNULIB_STRERRORNAME_NP])
      gl_MODULE_INDICATOR_INIT_VARIABLE([GNULIB_SIGABBREV_NP])
      gl_MODULE_INDICATOR_INIT_VARIABLE([GNULIB_SIGDESCR_NP])
      gl_MODULE_INDICATOR_INIT_VARIABLE([GNULIB_STRSIGNAL])
      gl_MODULE_INDICATOR_INIT_VARIABLE([GNULIB_STRVERSCMP])
      dnl Support Microsoft deprecated alias function names by default.
      gl_MODULE_INDICATOR_INIT_VARIABLE([GNULIB_MDA_MEMCCPY], [1])
      gl_MODULE_INDICATOR_INIT_VARIABLE([GNULIB_MDA_STRDUP], [1])
    ])
    m4_require(GL_MODULE_INDICATOR_PREFIX[_STRING_H_MODULE_INDICATOR_DEFAULTS])
    dnl Make sure the shell variable for GNULIB_FREE_POSIX is initialized.
    gl_STDLIB_H_REQUIRE_DEFAULTS
    AC_REQUIRE([gl_STRING_H_DEFAULTS])
  ])
  
  AC_DEFUN([gl_STRING_H_DEFAULTS],
  [
    HAVE_MBSLEN=0;             AC_SUBST([HAVE_MBSLEN])
    dnl Assume proper GNU behavior unless another module says otherwise.
    HAVE_EXPLICIT_BZERO=1;        AC_SUBST([HAVE_EXPLICIT_BZERO])
    HAVE_FFSL=1;                  AC_SUBST([HAVE_FFSL])
    HAVE_FFSLL=1;                 AC_SUBST([HAVE_FFSLL])
    HAVE_DECL_MEMMEM=1;           AC_SUBST([HAVE_DECL_MEMMEM])
    HAVE_MEMPCPY=1;               AC_SUBST([HAVE_MEMPCPY])
    HAVE_MEMSET_EXPLICIT=1;       AC_SUBST([HAVE_MEMSET_EXPLICIT])
    HAVE_DECL_MEMRCHR=1;          AC_SUBST([HAVE_DECL_MEMRCHR])
    HAVE_RAWMEMCHR=1;             AC_SUBST([HAVE_RAWMEMCHR])
    HAVE_STPCPY=1;                AC_SUBST([HAVE_STPCPY])
    HAVE_STPNCPY=1;               AC_SUBST([HAVE_STPNCPY])
    HAVE_STRCHRNUL=1;             AC_SUBST([HAVE_STRCHRNUL])
    HAVE_DECL_STRDUP=1;           AC_SUBST([HAVE_DECL_STRDUP])
    HAVE_DECL_STRNDUP=1;          AC_SUBST([HAVE_DECL_STRNDUP])
    HAVE_DECL_STRNLEN=1;          AC_SUBST([HAVE_DECL_STRNLEN])
    HAVE_STRPBRK=1;               AC_SUBST([HAVE_STRPBRK])
    HAVE_STRSEP=1;                AC_SUBST([HAVE_STRSEP])
    HAVE_STRCASESTR=1;            AC_SUBST([HAVE_STRCASESTR])
    HAVE_DECL_STRTOK_R=1;         AC_SUBST([HAVE_DECL_STRTOK_R])
    HAVE_DECL_STRERROR_R=1;       AC_SUBST([HAVE_DECL_STRERROR_R])
    HAVE_STRERRORNAME_NP=1;       AC_SUBST([HAVE_STRERRORNAME_NP])
    HAVE_SIGABBREV_NP=1;          AC_SUBST([HAVE_SIGABBREV_NP])
    HAVE_SIGDESCR_NP=1;           AC_SUBST([HAVE_SIGDESCR_NP])
    HAVE_DECL_STRSIGNAL=1;        AC_SUBST([HAVE_DECL_STRSIGNAL])
    HAVE_STRVERSCMP=1;            AC_SUBST([HAVE_STRVERSCMP])
    REPLACE_FFSLL=0;              AC_SUBST([REPLACE_FFSLL])
    REPLACE_MEMCHR=0;             AC_SUBST([REPLACE_MEMCHR])
    REPLACE_MEMMEM=0;             AC_SUBST([REPLACE_MEMMEM])
    REPLACE_MEMPCPY=0;            AC_SUBST([REPLACE_MEMPCPY])
    REPLACE_STPCPY=0;             AC_SUBST([REPLACE_STPCPY])
    REPLACE_STPNCPY=0;            AC_SUBST([REPLACE_STPNCPY])
    REPLACE_STRCHRNUL=0;          AC_SUBST([REPLACE_STRCHRNUL])
    REPLACE_STRDUP=0;             AC_SUBST([REPLACE_STRDUP])
    REPLACE_STRNCAT=0;            AC_SUBST([REPLACE_STRNCAT])
    REPLACE_STRNDUP=0;            AC_SUBST([REPLACE_STRNDUP])
    REPLACE_STRNLEN=0;            AC_SUBST([REPLACE_STRNLEN])
    REPLACE_STRSTR=0;             AC_SUBST([REPLACE_STRSTR])
    REPLACE_STRCASESTR=0;         AC_SUBST([REPLACE_STRCASESTR])
    REPLACE_STRTOK_R=0;           AC_SUBST([REPLACE_STRTOK_R])
    REPLACE_STRERROR=0;           AC_SUBST([REPLACE_STRERROR])
    REPLACE_STRERROR_R=0;         AC_SUBST([REPLACE_STRERROR_R])
    REPLACE_STRERRORNAME_NP=0;    AC_SUBST([REPLACE_STRERRORNAME_NP])
    REPLACE_STRSIGNAL=0;          AC_SUBST([REPLACE_STRSIGNAL])
    UNDEFINE_STRTOK_R=0;          AC_SUBST([UNDEFINE_STRTOK_R])
  ])
  

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