[vbox-dev] Virtualbox 6.1.14 fails to build when the liblzf library is provided by system.

[Thibault Vataire]

Hello,

Virtualbox 6.1.14 fails to build when the liblzf library is provided by 
system, but succeeds if the liblzf library is build from virtualbox sources.

System info :
     Description:    Debian GNU/Linux 10 (buster)
     liblzf-dev/buster-backports,now 3.6-2~bpo10+1 amd64  [installé]
     liblzf1/buster-backports,now 3.6-2~bpo10+1 amd64  [installé, 
automatique]


Steps to reproduce :
1/ install liblzf & liblzf-dev packages from debian repository
2/ decompress sources from 
https://download.virtualbox.org/virtualbox/6.1.14/VirtualBox-6.1.14a.tar.bz2
4/ configure and start build.

Result :
...
kBuild: Compiling tstVDIo - 
/tmp/VirtualBox-6.1.14/src/VBox/Storage/testcase/VDScriptInterp.cpp
kmk: *** No rule to make target 
'/tmp/VirtualBox-6.1.14/out/linux.amd64/release/lib/VBox-liblzf.a', 
needed by 
'/tmp/VirtualBox-6.1.14/out/linux.amd64/release/obj/vbox-img/vbox-img'. 
Stop.
kmk: *** Waiting for unfinished jobs....
...

Expected result :
If ./configure returns : "Checking for liblzf: found LZF API version 
1.5, OK."
the build should complete successfully.

Regards,
Thibault Vataire