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Diffstat (limited to 'gnulib/m4/wcsrtombs.m4')
| m--------- | gnulib | 0 | ||||
| -rw-r--r-- | gnulib/m4/wcsrtombs.m4 | 185 |
2 files changed, 185 insertions, 0 deletions
diff --git a/gnulib b/gnulib deleted file mode 160000 -Subproject 443bc5ffcf7429e557f4a371b0661abe98ddbc1 diff --git a/gnulib/m4/wcsrtombs.m4 b/gnulib/m4/wcsrtombs.m4 new file mode 100644 index 0000000..143b1be --- /dev/null +++ b/gnulib/m4/wcsrtombs.m4 @@ -0,0 +1,185 @@ +# wcsrtombs.m4 serial 11 +dnl Copyright (C) 2008-2011 Free Software Foundation, Inc. +dnl This file is free software; the Free Software Foundation +dnl gives unlimited permission to copy and/or distribute it, +dnl with or without modifications, as long as this notice is preserved. + +AC_DEFUN([gl_FUNC_WCSRTOMBS], +[ + AC_REQUIRE([gl_WCHAR_H_DEFAULTS]) + + AC_REQUIRE([AC_TYPE_MBSTATE_T]) + gl_MBSTATE_T_BROKEN + + AC_CHECK_FUNCS_ONCE([wcsrtombs]) + if test $ac_cv_func_wcsrtombs = no; then + HAVE_WCSRTOMBS=0 + AC_CHECK_DECLS([wcsrtombs],,, [[ +/* Tru64 with Desktop Toolkit C has a bug: <stdio.h> must be included before + <wchar.h>. + BSD/OS 4.0.1 has a bug: <stddef.h>, <stdio.h> and <time.h> must be + included before <wchar.h>. */ +#include <stddef.h> +#include <stdio.h> +#include <time.h> +#include <wchar.h> +]]) + if test $ac_cv_have_decl_wcsrtombs = yes; then + dnl On Minix 3.1.8, the system's <wchar.h> declares wcsrtombs() although + dnl it does not have the function. Avoid a collision with gnulib's + dnl replacement. + REPLACE_WCSRTOMBS=1 + fi + else + if test $REPLACE_MBSTATE_T = 1; then + REPLACE_WCSRTOMBS=1 + else + gl_WCSRTOMBS_TERMINATION + gl_WCSRTOMBS_NULL + case "$gl_cv_func_wcsrtombs_termination" in + *yes) ;; + *) AC_DEFINE([WCSRTOMBS_TERMINATION_BUG], [1], + [Define if the wcsrtombs function may set the source pointer to NULL without NUL-terminating the destination.]) + REPLACE_WCSRTOMBS=1 ;; + esac + case "$gl_cv_func_wcsrtombs_null" in + *yes) ;; + *) AC_DEFINE([WCSRTOMBS_NULL_ARG_BUG], [1], + [Define if the wcsrtombs function has the NULL destination argument bug.]) + REPLACE_WCSRTOMBS=1 ;; + esac + fi + fi +]) + +dnl Test whether the wcsrtombs implementation stores a non-NULL source pointer +dnl as long as it has not written the final NUL byte to the destination string. +dnl The OSF/1 5.1 implementation stores a NULL pointer already after storing +dnl the last non-NUL character, even if there is no more room for the +dnl terminating NUL character. +dnl Result is gl_cv_func_wcsrtombs_termination. + +AC_DEFUN([gl_WCSRTOMBS_TERMINATION], +[ + AC_REQUIRE([AC_PROG_CC]) + AC_REQUIRE([gt_LOCALE_FR]) + AC_REQUIRE([AC_CANONICAL_HOST]) dnl for cross-compiles + AC_CACHE_CHECK([whether wcsrtombs updates the source pointer correctly], + [gl_cv_func_wcsrtombs_termination], + [ + dnl Initial guess, used when cross-compiling or when no suitable locale + dnl is present. +changequote(,)dnl + case "$host_os" in + # Guess no on OSF/1. + osf*) gl_cv_func_wcsrtombs_termination="guessing no" ;; + # Guess yes otherwise. + *) gl_cv_func_wcsrtombs_termination="guessing yes" ;; + esac +changequote([,])dnl + if test $LOCALE_FR != none; then + AC_RUN_IFELSE( + [AC_LANG_SOURCE([[ +#include <locale.h> +#include <stdlib.h> +/* Tru64 with Desktop Toolkit C has a bug: <stdio.h> must be included before + <wchar.h>. + BSD/OS 4.0.1 has a bug: <stddef.h>, <stdio.h> and <time.h> must be + included before <wchar.h>. */ +#include <stddef.h> +#include <stdio.h> +#include <time.h> +#include <wchar.h> +int main () +{ + if (setlocale (LC_ALL, "$LOCALE_FR") != NULL) + { + const char original[] = "B\374\337er"; + wchar_t input[10]; + + if (mbstowcs (input, original, 10) == 5) + { + const wchar_t *src = input; + char output[5]; + wcsrtombs (output, &src, 5, NULL); + if (src != input + 5) + return 1; + } + } + return 0; +}]])], + [gl_cv_func_wcsrtombs_termination=yes], + [gl_cv_func_wcsrtombs_termination=no], + [:]) + fi + ]) +]) + +dnl Test whether the wcsrtombs implementation supports a NULL argument +dnl correctly. This is not the case on HP-UX 11.11 and OSF/1 5.1: These +dnl implementations updates the source pointer also if the destination argument +dnl is NULL. +dnl Result is gl_cv_func_wcsrtombs_null. + +AC_DEFUN([gl_WCSRTOMBS_NULL], +[ + AC_REQUIRE([AC_PROG_CC]) + AC_REQUIRE([gt_LOCALE_FR]) + AC_REQUIRE([AC_CANONICAL_HOST]) dnl for cross-compiles + AC_CACHE_CHECK([whether wcsrtombs supports a NULL argument correctly], + [gl_cv_func_wcsrtombs_null], + [ + dnl Initial guess, used when cross-compiling or when no suitable locale + dnl is present. +changequote(,)dnl + case "$host_os" in + # Guess no on HP-UX, OSF/1, mingw. + hpux* | osf* | mingw*) gl_cv_func_wcsrtombs_null="guessing no" ;; + # Guess yes otherwise. + *) gl_cv_func_wcsrtombs_null="guessing yes" ;; + esac +changequote([,])dnl + if test $LOCALE_FR != none; then + AC_RUN_IFELSE( + [AC_LANG_SOURCE([[ +#include <locale.h> +#include <stdlib.h> +/* Tru64 with Desktop Toolkit C has a bug: <stdio.h> must be included before + <wchar.h>. + BSD/OS 4.0.1 has a bug: <stddef.h>, <stdio.h> and <time.h> must be + included before <wchar.h>. */ +#include <stddef.h> +#include <stdio.h> +#include <time.h> +#include <wchar.h> +int main () +{ + int result = 0; + if (setlocale (LC_ALL, "$LOCALE_FR") != NULL) + { + const char original[] = "B\374\337er"; + wchar_t input[10]; + + if (mbstowcs (input, original, 10) == 5) + { + const wchar_t *src = input; + size_t ret = wcsrtombs (NULL, &src, 3, NULL); + if (ret != 5) + result |= 1; + if (src != input) + result |= 2; + } + } + return result; +}]])], + [gl_cv_func_wcsrtombs_null=yes], + [gl_cv_func_wcsrtombs_null=no], + [:]) + fi + ]) +]) + +# Prerequisites of lib/wcsrtombs.c. +AC_DEFUN([gl_PREREQ_WCSRTOMBS], [ + : +]) |