Make validation script work with non-windows platforms

Fies SaschaWillems#1215

Author: SaschaWillems

examples/validate_all.py

@@ -3,16 +3,21 @@
 
 # Runs all samples in benchmark mode and stores all validation messages into a single text file
 
-# Note: Need to be copied to where the binary files have been compiled
+# Note: Needs to be copied to where the binary files have been compiled (e.g. build/windows/bin/debug)
 
 import glob
 import subprocess
 import os
+import platform
 
 if os.path.exists("validation_output.txt"):
   os.remove("validation_output.txt")
-for sample in glob.glob("*.exe"):
-    # Skip headless samples, as they require manual keypress
+if platform.system() == 'Linux' or platform.system() == 'Darwin':
+    binaries = "./*"
+else:
+    binaries = "*.exe"  
+for sample in glob.glob(binaries):
+    # Skip headless samples, as they require a manual keypress
     if "headless" in sample:
        continue
     subprocess.call("%s -v -vl -b -bfs %s" % (sample, 50), shell=True)