mirror of https://gitee.com/openkylin/wget.git
63 lines
1.9 KiB
Plaintext
63 lines
1.9 KiB
Plaintext
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# vsnprintf.m4 serial 7
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dnl Copyright (C) 2002-2004, 2007-2019 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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dnl Libintl 0.17 will replace vsnprintf only if it does not support %1$s,
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dnl but defers to any gnulib vsnprintf replacements. Therefore, gnulib
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dnl must guarantee that the decision for replacing vsnprintf is a superset
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dnl of the reasons checked by libintl.
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AC_DEFUN([gl_FUNC_VSNPRINTF],
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[
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AC_REQUIRE([gl_STDIO_H_DEFAULTS])
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gl_cv_func_vsnprintf_usable=no
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AC_CHECK_FUNCS([vsnprintf])
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if test $ac_cv_func_vsnprintf = yes; then
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gl_SNPRINTF_SIZE1
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case "$gl_cv_func_snprintf_size1" in
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*yes)
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gl_SNPRINTF_RETVAL_C99
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case "$gl_cv_func_snprintf_retval_c99" in
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*yes)
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gl_PRINTF_POSITIONS
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case "$gl_cv_func_printf_positions" in
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*yes)
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gl_cv_func_vsnprintf_usable=yes
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;;
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esac
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;;
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esac
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;;
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esac
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fi
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if test $gl_cv_func_vsnprintf_usable = no; then
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gl_REPLACE_VSNPRINTF
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fi
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AC_CHECK_DECLS_ONCE([vsnprintf])
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if test $ac_cv_have_decl_vsnprintf = no; then
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HAVE_DECL_VSNPRINTF=0
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fi
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])
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AC_DEFUN([gl_REPLACE_VSNPRINTF],
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[
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AC_REQUIRE([gl_STDIO_H_DEFAULTS])
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AC_LIBOBJ([vsnprintf])
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if test $ac_cv_func_vsnprintf = yes; then
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REPLACE_VSNPRINTF=1
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else
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AC_CHECK_DECLS_ONCE([vsnprintf])
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if test $ac_cv_have_decl_vsnprintf = yes; then
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dnl If the function is declared but does not appear to exist, it may be
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dnl defined as an inline function. In order to avoid a conflict, we have
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dnl to define rpl_vsnprintf, not vsnprintf.
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REPLACE_VSNPRINTF=1
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fi
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fi
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gl_PREREQ_VSNPRINTF
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])
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# Prerequisites of lib/vsnprintf.c.
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AC_DEFUN([gl_PREREQ_VSNPRINTF], [:])
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