make isatty() available for stdout/stderr (hope it works on MS Windows)

diff --git a/src/Main/fg_init.cxx b/src/Main/fg_init.cxx
index 08f315a427d1ad2248870fab8d6b9af940a2760d..9e21c719f1920c5781a0cfdbc2bace13156bcb5c 100644 (file)
--- a/src/Main/fg_init.cxx
+++ b/src/Main/fg_init.cxx
@@ -35,6 +35,8 @@
 #if defined( _MSC_VER) || defined(__MINGW32__)
 #  include <direct.h>           // for getcwd()
 #  define getcwd _getcwd
+#  include <io.h>               // isatty()
+#  define isatty _isatty
 #endif
 
 // work around a stdc++ lib bug in some versions of linux, but doesn't
@@ -1186,6 +1188,9 @@ bool fgInitGeneral() {
     curr = curr->getChild("fg-current", 0, true);
     curr->setStringValue(cwd ? cwd : "");
     curr->setAttribute(SGPropertyNode::WRITE, false);
+
+    fgSetBool("/sim/startup/stdout-to-terminal", isatty(1));
+    fgSetBool("/sim/startup/stderr-to-terminal", isatty(2));
     return true;
 }