| # Configure a GNU-like replacement for <string.h>. |
| |
| # Copyright (C) 2007-2022 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 34 |
| |
| # 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> |
| ]], |
| [ffsl ffsll memmem mempcpy memrchr 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_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_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_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]) |
| ]) |
