Hooks: NumPy: Add a warning for Conda incompatibility.

PyInstaller/hooks/hook-numpy.py

@@ -102,6 +102,14 @@ def find_library(name):
 # their help to maintain this because our own attempts have been a disaster.
 
 if compat.is_conda:
+    logger.warning(
+        "Anaconda detected. Anaconda restructures NumPy in a way which makes "
+        "it's binary dependencies undetectable to PyInstaller. This can lead to"
+        " unexpected failures during build, runtime, runtime after your Conda "
+        "environment is deactivated, or on moving your compiled app to a "
+        "different machine. If you encounter any of these issues then please "
+        "switch to regular Python."
+    )
     hiddenimports.append("six")
 
     # There are so many hidden binary dependencies. This list is heavily, OS,