more corrections

src/frontend/libslirp/glib/glib.c

@@ -119,6 +119,7 @@ gboolean g_shell_parse_argv(const gchar* command_line, gint* argcp, gchar*** arg
     GError* err = malloc(sizeof(GError));
     err->message = message;
     *error = err;
+    return false;
 }
 
 gboolean g_spawn_async_with_fds(const gchar *working_directory, gchar **argv,

src/frontend/libslirp/glib/glib.h

@@ -9,6 +9,12 @@
 #include <string.h>
 #include <stddef.h>
 
+#ifdef _WIN32
+#define G_OS_WIN32 1
+#else
+#define G_OS_UNIX 1
+#endif
+
 #define G_LITTLE_ENDIAN 0
 #define G_BIG_ENDIAN 1
 #define G_BYTE_ORDER G_LITTLE_ENDIAN