Import Upstream version 2.72.4

glib/gnulib/gl_cv_func_printf_enomem/meson.build

@@ -0,0 +1,73 @@
+# Copyright (C) 2002-2004, 2006-2018 Free Software Foundation, Inc.
+# This file is free software; the Free Software Foundation
+# gives unlimited permission to copy and/or distribute it,
+# with or without modifications, as long as this notice is preserved.
+
+# Test whether the *printf family of functions recovers gracefully in case
+# of an out-of-memory condition, or whether it crashes the entire program.
+# Result is gl_cv_func_printf_enomem.
+
+printf_enomem_test = '''
+#include <stdio.h>
+#include <sys/types.h>
+#include <sys/time.h>
+#include <sys/resource.h>
+#include <errno.h>
+int main()
+{
+  struct rlimit limit;
+  int ret;
+  nocrash_init ();
+  /* Some printf implementations allocate temporary space with malloc.  */
+  /* On BSD systems, malloc() is limited by RLIMIT_DATA.  */
+#ifdef RLIMIT_DATA
+  if (getrlimit (RLIMIT_DATA, &limit) < 0)
+    return 77;
+  if (limit.rlim_max == RLIM_INFINITY || limit.rlim_max > 5000000)
+    limit.rlim_max = 5000000;
+  limit.rlim_cur = limit.rlim_max;
+  if (setrlimit (RLIMIT_DATA, &limit) < 0)
+    return 77;
+#endif
+  /* On Linux systems, malloc() is limited by RLIMIT_AS.  */
+#ifdef RLIMIT_AS
+  if (getrlimit (RLIMIT_AS, &limit) < 0)
+    return 77;
+  if (limit.rlim_max == RLIM_INFINITY || limit.rlim_max > 5000000)
+    limit.rlim_max = 5000000;
+  limit.rlim_cur = limit.rlim_max;
+  if (setrlimit (RLIMIT_AS, &limit) < 0)
+    return 77;
+#endif
+  /* Some printf implementations allocate temporary space on the stack.  */
+#ifdef RLIMIT_STACK
+  if (getrlimit (RLIMIT_STACK, &limit) < 0)
+    return 77;
+  if (limit.rlim_max == RLIM_INFINITY || limit.rlim_max > 5000000)
+    limit.rlim_max = 5000000;
+  limit.rlim_cur = limit.rlim_max;
+  if (setrlimit (RLIMIT_STACK, &limit) < 0)
+    return 77;
+#endif
+  ret = printf ("%.5000000f", 1.0);
+  return !(ret == 5000002 || (ret < 0 && errno == ENOMEM));
+}
+'''
+
+if not meson.is_cross_build() or meson.has_exe_wrapper()
+  run_result = cc.run(printf_enomem_test,
+      name : 'printf survives out-of-memory conditions')
+  gl_cv_func_printf_enomem = run_result.compiled() and run_result.returncode() == 0
+else
+  # If we don't know, assume the worst.
+  gl_cv_func_printf_enomem = false
+  if (host_system == 'linux' or
+      host_system == 'solaris' or
+      host_system == 'sunos' or
+      host_system == 'aix' or 
+      host_system == 'irix' or 
+      host_system == 'beos' or 
+      host_system == 'haiku')
+    gl_cv_func_printf_enomem = true
+  endif
+endif