Import Upstream version 2.72.4

glib/gnulib/gl_cv_func_printf_flag_zero/meson.build

@@ -0,0 +1,40 @@
+# 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 supports padding of non-finite
+# values with the 0 flag correctly. (ISO C99 + TC1 + TC2.) See
+# <https://lists.gnu.org/r/bug-gnulib/2007-04/msg00107.html>
+# Result is gl_cv_func_printf_flag_zero.
+
+printf_flag_zero_test = '''
+#include <stdio.h>
+#include <string.h>
+static char buf[100];
+static double zero = 0.0;
+int main ()
+{
+  if (sprintf (buf, "%010f", 1.0 / zero, 33, 44, 55) < 0
+      || (strcmp (buf, "       inf") != 0
+          && strcmp (buf, "  infinity") != 0))
+    return 1;
+  return 0;
+}
+'''
+
+if not meson.is_cross_build() or meson.has_exe_wrapper()
+  run_result = cc.run(printf_flag_zero_test,
+      name : 'printf supports the zero flag correctly')
+  gl_cv_func_printf_flag_zero = run_result.compiled() and run_result.returncode() == 0
+else
+  if host_system in ['linux', 'android']
+    gl_cv_func_printf_flag_zero = true
+  elif host_system.startswith ('beos')
+    gl_cv_func_printf_flag_zero = true
+  elif host_system == 'windows'
+    gl_cv_func_printf_flag_zero = false
+  else
+    gl_cv_func_printf_flag_zero = false
+  endif
+endif