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Description: Include missing m4 macro
Running autoreconf fails because the AC_FUNC_SNPRINTF macro isn't part
of autoconf upstream, but rather was pulled in from an external resource
(e.g., http://ac-archive.sourceforge.net/ac-archive/ac_func_snprintf.html).
Include it in the tree so that autoreconf works correctly.
Author: RĂ¼diger Kuhlmann <info@ruediger-kuhlmann.de>
Index: nas/config/acinclude.m4
===================================================================
--- /dev/null
+++ nas/config/acinclude.m4
@@ -0,0 +1,65 @@
+dnl Author: RĂ¼diger Kuhlmann <info@ruediger-kuhlmann.de>
+dnl License:
+dnl AllPermissive
+dnl Copying and distribution of this file, with or without modification,
+dnl are permitted in any medium without royalty provided the copyright
+dnl notice and this notice are preserved. Users of this software should
+dnl generally follow the principles of the MIT License includings its
+dnl disclaimer.
+
+AC_DEFUN([AC_FUNC_SNPRINTF],
+[AC_CHECK_FUNCS(snprintf vsnprintf)
+AC_MSG_CHECKING(for working snprintf)
+AC_CACHE_VAL(ac_cv_have_working_snprintf,
+[AC_TRY_RUN(
+[#include <stdio.h>
+
+int main(void)
+{
+ char bufs[5] = { 'x', 'x', 'x', '\0', '\0' };
+ char bufd[5] = { 'x', 'x', 'x', '\0', '\0' };
+ int i;
+ i = snprintf (bufs, 2, "%s", "111");
+ if (strcmp (bufs, "1")) exit (1);
+ if (i != 3) exit (1);
+ i = snprintf (bufd, 2, "%d", 111);
+ if (strcmp (bufd, "1")) exit (1);
+ if (i != 3) exit (1);
+ exit(0);
+}], ac_cv_have_working_snprintf=yes, ac_cv_have_working_snprintf=no, ac_cv_have_working_snprintf=cross)])
+AC_MSG_RESULT([$ac_cv_have_working_snprintf])
+AC_MSG_CHECKING(for working vsnprintf)
+AC_CACHE_VAL(ac_cv_have_working_vsnprintf,
+[AC_TRY_RUN(
+[#include <stdio.h>
+#include <stdarg.h>
+
+int my_vsnprintf (char *buf, const char *tmpl, ...)
+{
+ int i;
+ va_list args;
+ va_start (args, tmpl);
+ i = vsnprintf (buf, 2, tmpl, args);
+ va_end (args);
+ return i;
+}
+
+int main(void)
+{
+ char bufs[5] = { 'x', 'x', 'x', '\0', '\0' };
+ char bufd[5] = { 'x', 'x', 'x', '\0', '\0' };
+ int i;
+ i = my_vsnprintf (bufs, "%s", "111");
+ if (strcmp (bufs, "1")) exit (1);
+ if (i != 3) exit (1);
+ i = my_vsnprintf (bufd, "%d", 111);
+ if (strcmp (bufd, "1")) exit (1);
+ if (i != 3) exit (1);
+ exit(0);
+}], ac_cv_have_working_vsnprintf=yes, ac_cv_have_working_vsnprintf=no, ac_cv_have_working_vsnprintf=cross)])
+AC_MSG_RESULT([$ac_cv_have_working_vsnprintf])
+if test x$ac_cv_have_working_snprintf$ac_cv_have_working_vsnprintf != "xyesyes"; then
+ AC_LIBOBJ(snprintf)
+ AC_MSG_WARN([Replacing missing/broken (v)snprintf() with version from http://www.ijs.si/software/snprintf/.])
+ AC_DEFINE(PREFER_PORTABLE_SNPRINTF, 1, "enable replacement (v)snprintf if system (v)snprintf is broken")
+fi])
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