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-rw-r--r--m4/snprintf.m462
1 files changed, 62 insertions, 0 deletions
diff --git a/m4/snprintf.m4 b/m4/snprintf.m4
new file mode 100644
index 0000000..7420591
--- /dev/null
+++ b/m4/snprintf.m4
@@ -0,0 +1,62 @@
+# snprintf.m4 serial 7
+dnl Copyright (C) 2002-2004, 2007-2022 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.
+
+dnl Libintl 0.17 will replace snprintf only if it does not support %1$s,
+dnl but defers to any gnulib snprintf replacements. Therefore, gnulib
+dnl must guarantee that the decision for replacing snprintf is a superset
+dnl of the reasons checked by libintl.
+AC_DEFUN([gl_FUNC_SNPRINTF],
+[
+ AC_REQUIRE([gl_STDIO_H_DEFAULTS])
+ gl_cv_func_snprintf_usable=no
+ AC_CHECK_FUNCS([snprintf])
+ if test $ac_cv_func_snprintf = yes; then
+ gl_SNPRINTF_SIZE1
+ case "$gl_cv_func_snprintf_size1" in
+ *yes)
+ gl_SNPRINTF_RETVAL_C99
+ case "$gl_cv_func_snprintf_retval_c99" in
+ *yes)
+ gl_PRINTF_POSITIONS
+ case "$gl_cv_func_printf_positions" in
+ *yes)
+ gl_cv_func_snprintf_usable=yes
+ ;;
+ esac
+ ;;
+ esac
+ ;;
+ esac
+ fi
+ if test $gl_cv_func_snprintf_usable = no; then
+ gl_REPLACE_SNPRINTF
+ fi
+ AC_CHECK_DECLS_ONCE([snprintf])
+ if test $ac_cv_have_decl_snprintf = no; then
+ HAVE_DECL_SNPRINTF=0
+ fi
+])
+
+AC_DEFUN([gl_REPLACE_SNPRINTF],
+[
+ AC_REQUIRE([gl_STDIO_H_DEFAULTS])
+ AC_LIBOBJ([snprintf])
+ if test $ac_cv_func_snprintf = yes; then
+ REPLACE_SNPRINTF=1
+ else
+ AC_CHECK_DECLS_ONCE([snprintf])
+ if test $ac_cv_have_decl_snprintf = yes; then
+ dnl If the function is declared but does not appear to exist, it may be
+ dnl defined as an inline function. In order to avoid a conflict, we have
+ dnl to define rpl_snprintf, not snprintf.
+ REPLACE_SNPRINTF=1
+ fi
+ fi
+ gl_PREREQ_SNPRINTF
+])
+
+# Prerequisites of lib/snprintf.c.
+AC_DEFUN([gl_PREREQ_SNPRINTF], [:])