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author | Andy Wingo <wingo@pobox.com> | 2021-01-20 21:52:54 +0100 |
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committer | Andy Wingo <wingo@pobox.com> | 2021-01-20 23:03:56 +0100 |
commit | a91b95cca2d397c84f8b9bbd602d40209a7092ce (patch) | |
tree | 2c286a291f5a2b812d6e216be10936f2709d59cf /m4/vasnprintf.m4 | |
parent | 758b31994cff582c7e8785b4cc2240dbf3573837 (diff) | |
download | guile-a91b95cca2d397c84f8b9bbd602d40209a7092ce.tar.gz |
Update Gnulib to v0.1-4379-g2ef5a9b4b
Also bump required autoconf version to 2.64, as required by Gnulib.
Diffstat (limited to 'm4/vasnprintf.m4')
-rw-r--r-- | m4/vasnprintf.m4 | 17 |
1 files changed, 12 insertions, 5 deletions
diff --git a/m4/vasnprintf.m4 b/m4/vasnprintf.m4 index 47c5951cb..483bba969 100644 --- a/m4/vasnprintf.m4 +++ b/m4/vasnprintf.m4 @@ -1,5 +1,5 @@ -# vasnprintf.m4 serial 36 -dnl Copyright (C) 2002-2004, 2006-2017 Free Software Foundation, Inc. +# vasnprintf.m4 serial 38 +dnl Copyright (C) 2002-2004, 2006-2021 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. @@ -32,7 +32,6 @@ AC_DEFUN([gl_REPLACE_VASNPRINTF], # Prerequisites of lib/printf-args.h, lib/printf-args.c. AC_DEFUN([gl_PREREQ_PRINTF_ARGS], [ - AC_REQUIRE([AC_TYPE_LONG_LONG_INT]) AC_REQUIRE([gt_TYPE_WCHAR_T]) AC_REQUIRE([gt_TYPE_WINT_T]) ]) @@ -41,7 +40,6 @@ AC_DEFUN([gl_PREREQ_PRINTF_ARGS], AC_DEFUN([gl_PREREQ_PRINTF_PARSE], [ AC_REQUIRE([gl_FEATURES_H]) - AC_REQUIRE([AC_TYPE_LONG_LONG_INT]) AC_REQUIRE([gt_TYPE_WCHAR_T]) AC_REQUIRE([gt_TYPE_WINT_T]) AC_REQUIRE([AC_TYPE_SIZE_T]) @@ -56,7 +54,6 @@ AC_DEFUN([gl_PREREQ_PRINTF_PARSE], AC_DEFUN_ONCE([gl_PREREQ_VASNPRINTF], [ AC_REQUIRE([AC_FUNC_ALLOCA]) - AC_REQUIRE([AC_TYPE_LONG_LONG_INT]) AC_REQUIRE([gt_TYPE_WCHAR_T]) AC_REQUIRE([gt_TYPE_WINT_T]) AC_CHECK_FUNCS([snprintf strnlen wcslen wcsnlen mbrtowc wcrtomb]) @@ -77,6 +74,16 @@ AC_DEFUN_ONCE([gl_PREREQ_VASNPRINTF], if the buffer had been large enough.]) ;; esac + dnl Additionally, the use of %n can be eliminated by assuming that snprintf + dnl always produces NUL-terminated strings (no truncation). + AC_REQUIRE([gl_SNPRINTF_TRUNCATION_C99]) + case "$gl_cv_func_snprintf_truncation_c99" in + *yes) + AC_DEFINE([HAVE_SNPRINTF_TRUNCATION_C99], [1], + [Define if the string produced by the snprintf function is always NUL + terminated.]) + ;; + esac ]) # Extra prerequisites of lib/vasnprintf.c for supporting 'long double' |