Update .{hg,git}ignore for Cygwin builds
diff --git a/.gitignore b/.gitignore
index ed4ebfb..dde654b 100644
--- a/.gitignore
+++ b/.gitignore
@@ -31,7 +31,10 @@
 Modules/config.c
 Modules/ld_so_aix
 Programs/_freeze_importlib
+Programs/_freeze_importlib.exe
 Programs/_testembed
+Programs/_testembed.exe
+Programs/pgen.exe
 PC/python_nt*.h
 PC/pythonnt_rc*.h
 PC/*/*.exe
@@ -72,6 +75,7 @@
 libpython*.a
 libpython*.so*
 libpython*.dylib
+libpython*.dll
 platform
 pybuilddir.txt
 pyconfig.h