diff -up qtwebengine-everywhere-src-5.12.0/src/buildtools/gn.pro.gn-bootstrap-verbose qtwebengine-everywhere-src-5.12.0/src/buildtools/gn.pro

--- qtwebengine-everywhere-src-5.12.0/src/buildtools/gn.pro.gn-bootstrap-verbose	2018-12-07 09:53:18.262171677 -0600

+++ qtwebengine-everywhere-src-5.12.0/src/buildtools/gn.pro	2018-12-07 09:57:53.246646133 -0600

@@ -18,7 +18,7 @@ build_pass|!debug_and_release {

             src_3rd_party_dir = $$absolute_path("$${getChromiumSrcDir()}/../", "$$QTWEBENGINE_ROOT")

             gn_bootstrap = $$system_path($$absolute_path(gn/build/gen.py, $$src_3rd_party_dir))

-            gn_configure = $$system_quote($$gn_bootstrap) --no-last-commit-position --out-path $$out_path

+            gn_configure = $$system_quote($$gn_bootstrap) --verbose --no-last-commit-position --out-path $$out_path

             !system("$$pythonPathForSystem() $$gn_configure") {

                 error("GN generation error!")

             }