doc: update compiler CMake build and update .gitignore
diff --git a/.gitignore b/.gitignore
index 7c01d64..2282c0f 100644
--- a/.gitignore
+++ b/.gitignore
@@ -31,6 +31,7 @@
 aclocal.m4
 acinclude.m4
 autom4te.cache
+cmake-*
 node_modules
 compile
 test-driver