153 lines
7.5 KiB
Plaintext
153 lines
7.5 KiB
Plaintext
# string_h.m4
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# serial 39
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dnl Copyright (C) 2007-2024 Free Software Foundation, Inc.
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dnl This file is free software; the Free Software Foundation
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dnl gives unlimited permission to copy and/or distribute it,
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dnl with or without modifications, as long as this notice is preserved.
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# Configure a GNU-like replacement for <string.h>.
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# Written by Paul Eggert.
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AC_DEFUN_ONCE([gl_STRING_H],
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[
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dnl Ensure to expand the default settings once only, before all statements
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dnl that occur in other macros.
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AC_REQUIRE([gl_STRING_H_DEFAULTS])
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gl_NEXT_HEADERS([string.h])
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dnl Check for declarations of anything we want to poison if the
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dnl corresponding gnulib module is not in use, and which is not
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dnl guaranteed by C89.
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gl_WARN_ON_USE_PREPARE([[#include <string.h>
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]],
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[explicit_bzero ffsl ffsll memmem mempcpy memrchr memset_explicit
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rawmemchr stpcpy stpncpy strchrnul
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strdup strncat strndup strnlen strpbrk strsep strcasestr strtok_r
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strerror_r strerrorname_np sigabbrev_np sigdescr_np strsignal strverscmp])
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AC_REQUIRE([AC_C_RESTRICT])
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])
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# gl_STRING_MODULE_INDICATOR([modulename])
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# sets the shell variable that indicates the presence of the given module
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# to a C preprocessor expression that will evaluate to 1.
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# This macro invocation must not occur in macros that are AC_REQUIREd.
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AC_DEFUN([gl_STRING_MODULE_INDICATOR],
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[
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dnl Ensure to expand the default settings once only.
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gl_STRING_H_REQUIRE_DEFAULTS
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gl_MODULE_INDICATOR_SET_VARIABLE([$1])
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dnl Define it also as a C macro, for the benefit of the unit tests.
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gl_MODULE_INDICATOR_FOR_TESTS([$1])
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])
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# Initializes the default values for AC_SUBSTed shell variables.
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# This macro must not be AC_REQUIREd. It must only be invoked, and only
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# outside of macros or in macros that are not AC_REQUIREd.
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AC_DEFUN([gl_STRING_H_REQUIRE_DEFAULTS],
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[
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m4_defun(GL_MODULE_INDICATOR_PREFIX[_STRING_H_MODULE_INDICATOR_DEFAULTS], [
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gl_MODULE_INDICATOR_INIT_VARIABLE([GNULIB_EXPLICIT_BZERO])
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gl_MODULE_INDICATOR_INIT_VARIABLE([GNULIB_FFSL])
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gl_MODULE_INDICATOR_INIT_VARIABLE([GNULIB_FFSLL])
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gl_MODULE_INDICATOR_INIT_VARIABLE([GNULIB_MEMCHR])
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gl_MODULE_INDICATOR_INIT_VARIABLE([GNULIB_MEMMEM])
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gl_MODULE_INDICATOR_INIT_VARIABLE([GNULIB_MEMPCPY])
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gl_MODULE_INDICATOR_INIT_VARIABLE([GNULIB_MEMRCHR])
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gl_MODULE_INDICATOR_INIT_VARIABLE([GNULIB_MEMSET_EXPLICIT])
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gl_MODULE_INDICATOR_INIT_VARIABLE([GNULIB_RAWMEMCHR])
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gl_MODULE_INDICATOR_INIT_VARIABLE([GNULIB_STPCPY])
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gl_MODULE_INDICATOR_INIT_VARIABLE([GNULIB_STPNCPY])
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gl_MODULE_INDICATOR_INIT_VARIABLE([GNULIB_STRCHRNUL])
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gl_MODULE_INDICATOR_INIT_VARIABLE([GNULIB_STRDUP])
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gl_MODULE_INDICATOR_INIT_VARIABLE([GNULIB_STRNCAT])
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gl_MODULE_INDICATOR_INIT_VARIABLE([GNULIB_STRNDUP])
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gl_MODULE_INDICATOR_INIT_VARIABLE([GNULIB_STRNLEN])
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gl_MODULE_INDICATOR_INIT_VARIABLE([GNULIB_STRPBRK])
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gl_MODULE_INDICATOR_INIT_VARIABLE([GNULIB_STRSEP])
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gl_MODULE_INDICATOR_INIT_VARIABLE([GNULIB_STRSTR])
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gl_MODULE_INDICATOR_INIT_VARIABLE([GNULIB_STRCASESTR])
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gl_MODULE_INDICATOR_INIT_VARIABLE([GNULIB_STRTOK_R])
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gl_MODULE_INDICATOR_INIT_VARIABLE([GNULIB_MBSLEN])
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gl_MODULE_INDICATOR_INIT_VARIABLE([GNULIB_MBSNLEN])
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gl_MODULE_INDICATOR_INIT_VARIABLE([GNULIB_MBSCHR])
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gl_MODULE_INDICATOR_INIT_VARIABLE([GNULIB_MBSRCHR])
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gl_MODULE_INDICATOR_INIT_VARIABLE([GNULIB_MBSSTR])
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gl_MODULE_INDICATOR_INIT_VARIABLE([GNULIB_MBSCASECMP])
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gl_MODULE_INDICATOR_INIT_VARIABLE([GNULIB_MBSNCASECMP])
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gl_MODULE_INDICATOR_INIT_VARIABLE([GNULIB_MBSPCASECMP])
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gl_MODULE_INDICATOR_INIT_VARIABLE([GNULIB_MBSCASESTR])
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gl_MODULE_INDICATOR_INIT_VARIABLE([GNULIB_MBSCSPN])
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gl_MODULE_INDICATOR_INIT_VARIABLE([GNULIB_MBSPBRK])
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gl_MODULE_INDICATOR_INIT_VARIABLE([GNULIB_MBSSPN])
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gl_MODULE_INDICATOR_INIT_VARIABLE([GNULIB_MBSSEP])
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gl_MODULE_INDICATOR_INIT_VARIABLE([GNULIB_MBSTOK_R])
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gl_MODULE_INDICATOR_INIT_VARIABLE([GNULIB_STRERROR])
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gl_MODULE_INDICATOR_INIT_VARIABLE([GNULIB_STRERROR_R])
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gl_MODULE_INDICATOR_INIT_VARIABLE([GNULIB_STRERRORNAME_NP])
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gl_MODULE_INDICATOR_INIT_VARIABLE([GNULIB_SIGABBREV_NP])
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gl_MODULE_INDICATOR_INIT_VARIABLE([GNULIB_SIGDESCR_NP])
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gl_MODULE_INDICATOR_INIT_VARIABLE([GNULIB_STRSIGNAL])
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gl_MODULE_INDICATOR_INIT_VARIABLE([GNULIB_STRVERSCMP])
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dnl Support Microsoft deprecated alias function names by default.
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gl_MODULE_INDICATOR_INIT_VARIABLE([GNULIB_MDA_MEMCCPY], [1])
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gl_MODULE_INDICATOR_INIT_VARIABLE([GNULIB_MDA_STRDUP], [1])
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])
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m4_require(GL_MODULE_INDICATOR_PREFIX[_STRING_H_MODULE_INDICATOR_DEFAULTS])
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dnl Make sure the shell variable for GNULIB_FREE_POSIX is initialized.
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gl_STDLIB_H_REQUIRE_DEFAULTS
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AC_REQUIRE([gl_STRING_H_DEFAULTS])
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])
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AC_DEFUN([gl_STRING_H_DEFAULTS],
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[
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HAVE_MBSLEN=0; AC_SUBST([HAVE_MBSLEN])
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dnl Assume proper GNU behavior unless another module says otherwise.
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HAVE_EXPLICIT_BZERO=1; AC_SUBST([HAVE_EXPLICIT_BZERO])
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HAVE_FFSL=1; AC_SUBST([HAVE_FFSL])
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HAVE_FFSLL=1; AC_SUBST([HAVE_FFSLL])
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HAVE_DECL_MEMMEM=1; AC_SUBST([HAVE_DECL_MEMMEM])
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HAVE_MEMPCPY=1; AC_SUBST([HAVE_MEMPCPY])
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HAVE_MEMSET_EXPLICIT=1; AC_SUBST([HAVE_MEMSET_EXPLICIT])
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HAVE_DECL_MEMRCHR=1; AC_SUBST([HAVE_DECL_MEMRCHR])
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HAVE_RAWMEMCHR=1; AC_SUBST([HAVE_RAWMEMCHR])
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HAVE_STPCPY=1; AC_SUBST([HAVE_STPCPY])
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HAVE_STPNCPY=1; AC_SUBST([HAVE_STPNCPY])
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HAVE_STRCHRNUL=1; AC_SUBST([HAVE_STRCHRNUL])
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HAVE_DECL_STRDUP=1; AC_SUBST([HAVE_DECL_STRDUP])
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HAVE_DECL_STRNDUP=1; AC_SUBST([HAVE_DECL_STRNDUP])
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HAVE_DECL_STRNLEN=1; AC_SUBST([HAVE_DECL_STRNLEN])
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HAVE_STRPBRK=1; AC_SUBST([HAVE_STRPBRK])
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HAVE_STRSEP=1; AC_SUBST([HAVE_STRSEP])
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HAVE_STRCASESTR=1; AC_SUBST([HAVE_STRCASESTR])
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HAVE_DECL_STRTOK_R=1; AC_SUBST([HAVE_DECL_STRTOK_R])
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HAVE_DECL_STRERROR_R=1; AC_SUBST([HAVE_DECL_STRERROR_R])
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HAVE_STRERRORNAME_NP=1; AC_SUBST([HAVE_STRERRORNAME_NP])
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HAVE_SIGABBREV_NP=1; AC_SUBST([HAVE_SIGABBREV_NP])
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HAVE_SIGDESCR_NP=1; AC_SUBST([HAVE_SIGDESCR_NP])
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HAVE_DECL_STRSIGNAL=1; AC_SUBST([HAVE_DECL_STRSIGNAL])
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HAVE_STRVERSCMP=1; AC_SUBST([HAVE_STRVERSCMP])
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REPLACE_FFSLL=0; AC_SUBST([REPLACE_FFSLL])
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REPLACE_MEMCHR=0; AC_SUBST([REPLACE_MEMCHR])
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REPLACE_MEMMEM=0; AC_SUBST([REPLACE_MEMMEM])
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REPLACE_MEMPCPY=0; AC_SUBST([REPLACE_MEMPCPY])
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REPLACE_MEMSET_EXPLICIT=0; AC_SUBST([REPLACE_MEMSET_EXPLICIT])
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REPLACE_STPCPY=0; AC_SUBST([REPLACE_STPCPY])
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REPLACE_STPNCPY=0; AC_SUBST([REPLACE_STPNCPY])
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REPLACE_STRCHRNUL=0; AC_SUBST([REPLACE_STRCHRNUL])
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REPLACE_STRDUP=0; AC_SUBST([REPLACE_STRDUP])
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REPLACE_STRNCAT=0; AC_SUBST([REPLACE_STRNCAT])
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REPLACE_STRNDUP=0; AC_SUBST([REPLACE_STRNDUP])
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REPLACE_STRNLEN=0; AC_SUBST([REPLACE_STRNLEN])
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REPLACE_STRSTR=0; AC_SUBST([REPLACE_STRSTR])
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REPLACE_STRCASESTR=0; AC_SUBST([REPLACE_STRCASESTR])
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REPLACE_STRTOK_R=0; AC_SUBST([REPLACE_STRTOK_R])
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REPLACE_STRERROR=0; AC_SUBST([REPLACE_STRERROR])
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REPLACE_STRERROR_R=0; AC_SUBST([REPLACE_STRERROR_R])
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REPLACE_STRERRORNAME_NP=0; AC_SUBST([REPLACE_STRERRORNAME_NP])
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REPLACE_STRSIGNAL=0; AC_SUBST([REPLACE_STRSIGNAL])
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REPLACE_STRVERSCMP=0; AC_SUBST([REPLACE_STRVERSCMP])
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UNDEFINE_STRTOK_R=0; AC_SUBST([UNDEFINE_STRTOK_R])
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])
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