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| author | DongHun Kwak <dh0128.kwak@samsung.com> | 2021-03-05 10:08:13 +0900 |
|---|---|---|
| committer | DongHun Kwak <dh0128.kwak@samsung.com> | 2021-03-05 10:08:13 +0900 |
| commit | 61fb427c104d6f2334aaee9c7d90d8287d521b17 (patch) | |
| tree | e4caa30fa69cb51705f22392cab8cf9c04dffb94 /m4/mbrtowc.m4 | |
| parent | 1478f6ab011981e9a986c0c30da680635d3e77bf (diff) | |
| download | wget-61fb427c104d6f2334aaee9c7d90d8287d521b17.tar.gz wget-61fb427c104d6f2334aaee9c7d90d8287d521b17.tar.bz2 wget-61fb427c104d6f2334aaee9c7d90d8287d521b17.zip | |
Imported Upstream version 1.16.1upstream/1.16.1
Diffstat (limited to 'm4/mbrtowc.m4')
| -rw-r--r-- | m4/mbrtowc.m4 | 48 |
1 files changed, 46 insertions, 2 deletions
diff --git a/m4/mbrtowc.m4 b/m4/mbrtowc.m4 index 4c9f388..45696f5 100644 --- a/m4/mbrtowc.m4 +++ b/m4/mbrtowc.m4 @@ -1,5 +1,5 @@ -# mbrtowc.m4 serial 25 -dnl Copyright (C) 2001-2002, 2004-2005, 2008-2013 Free Software Foundation, +# mbrtowc.m4 serial 26 +dnl Copyright (C) 2001-2002, 2004-2005, 2008-2014 Free Software Foundation, dnl Inc. dnl This file is free software; the Free Software Foundation dnl gives unlimited permission to copy and/or distribute it, @@ -39,6 +39,7 @@ AC_DEFUN([gl_FUNC_MBRTOWC], gl_MBRTOWC_NULL_ARG2 gl_MBRTOWC_RETVAL gl_MBRTOWC_NUL_RETVAL + gl_MBRTOWC_EMPTY_INPUT case "$gl_cv_func_mbrtowc_null_arg1" in *yes) ;; *) AC_DEFINE([MBRTOWC_NULL_ARG1_BUG], [1], @@ -67,6 +68,14 @@ AC_DEFUN([gl_FUNC_MBRTOWC], REPLACE_MBRTOWC=1 ;; esac + case "$gl_cv_func_mbrtowc_empty_input" in + *yes) ;; + *) AC_DEFINE([MBRTOWC_EMPTY_INPUT_BUG], [1], + [Define if the mbrtowc function does not return (size_t) -2 + for empty input.]) + REPLACE_MBRTOWC=1 + ;; + esac fi fi ]) @@ -533,6 +542,41 @@ int main () ]) ]) +dnl Test whether mbrtowc returns the correct value on empty input. + +AC_DEFUN([gl_MBRTOWC_EMPTY_INPUT], +[ + AC_REQUIRE([AC_PROG_CC]) + AC_REQUIRE([AC_CANONICAL_HOST]) dnl for cross-compiles + AC_CACHE_CHECK([whether mbrtowc works on empty input], + [gl_cv_func_mbrtowc_empty_input], + [ + dnl Initial guess, used when cross-compiling or when no suitable locale + dnl is present. +changequote(,)dnl + case "$host_os" in + # Guess no on AIX and glibc systems. + aix* | *-gnu*) + gl_cv_func_mbrtowc_empty_input="guessing no" ;; + *) gl_cv_func_mbrtowc_empty_input="guessing yes" ;; + esac +changequote([,])dnl + AC_RUN_IFELSE( + [AC_LANG_SOURCE([[ + #include <wchar.h> + static wchar_t wc; + static mbstate_t mbs; + int + main (void) + { + return mbrtowc (&wc, "", 0, &mbs) == (size_t) -2; + }]])], + [gl_cv_func_mbrtowc_empty_input=no], + [gl_cv_func_mbrtowc_empty_input=yes], + [:]) + ]) +]) + # Prerequisites of lib/mbrtowc.c. AC_DEFUN([gl_PREREQ_MBRTOWC], [ : |