The logic I added in r177254 was incorrect with regards to the precedence of conditional build settings vs unconditional ones. This has resulted in engineering builds of WebCore on OS X 10.8 and 10.9 being incorrectly built with -gline-tables-only. <rdar://problem/19297261>
Created attachment 243647 [details] Patch
Comment on attachment 243647 [details] Patch rs=me
Comment on attachment 243647 [details] Patch Clearing flags on attachment: 243647 Committed r177674: <http://trac.webkit.org/changeset/177674>
All reviewed patches have been landed. Closing bug.