[Libreoffice] "make dev-install -o build" does a complete incremental build

[Lionel Elie Mamane]

Hi,

After "make" in top directory, one is suggested to do

 make dev-install -o build

This used to skip the build and just do the dev-install part, but not
anymore. That's rather annoying, as an incremental build that does
nothing takes quite some time to notice it has to do nothing (and run
unittests).

Additionally, the incremental build (just after "make" successfully
finished, no source file touched/changed) relinks quite some libraries
and JCS/JAR files, I'm not sure why. That too is annoying in itself,
and makes the above only worse.

-- 
Lionel