Currently crashdump is inactive (AFAIK). However, when a build is configured with --enable-crashdump, ide-integration subsequently doesn't produce any output.
The problem was traced using vs2013-ide-integration, which fails to parse any directories from the make output. Upon further investigation, it seems that when --enable-crashdump is set, make -pn produces no lines with '#' which contain the directory structure. Because gbuild-to-ide depends on these lines to parse the source, install, or build directories. Other ide types should also be broken, but haven't confirmed.
No attempt were made to find a last commit that had ide-integration working with --enable-crashdump.
The devs have requested that all inquiries about building LO go to the dev mailing list:
Quick link for the list:
Status -> RESOLVED NOTOURBUG