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dnl Copyright (C) 2002-2004, 2007-2023 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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AC_DEFUN([gl_PREREQ_VSNPRINTF], [:]) |
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