Disable libhdfs3 and osg-qt in linux temporarily

[JackBoosY]

In recent PRs, I found the following regressions in linux:

• libhdfs3:

CMake Error at /home/work/vcpkg/downloads/tools/cmake-3.14.0-linux/cmake-3.14.0-Linux-x86_64/share/cmake-3.14/Modules/FindPackageHandleStandardArgs.cmake:137 (message):
  Could NOT find KERBEROS (missing: KERBEROS_LIBRARIES KERBEROS_INCLUDE_DIR)

• osg-qt: Since ms-angle conflicts with angle and qt-5base, libegl build fails, which leads to this regression.

I will fix them in another PR later.

Related: #10285 #10167 #10253 #10287.

[strega-nil]

Thanks Jack!

[kreuzerkrieg]

@JackBoosY , any ETA when libhdfs3 is going to make it back?

[JackBoosY]

@kreuzerkrieg Less than one week.

[JackBoosY]

Since vcpkg does not currently join port Kerberos, we need to remind users to install it with other package managers and fix the issue of finding it.

[kreuzerkrieg]

so, what is the current status of libhdfs3?

[strega-nil]

@JackBoosY I don't think kerberos is generally available in package managers (at least, afaict, it's not in the default ubuntu PPAs); I think we have to add krb5 as a port to vcpkg (http://web.mit.edu/kerberos/)

[PhoebeHui]

@kreuzerkrieg, it looks you are the author of the libhdfs3 port in vcpkg, do you know if kerberos required to build libhdfs3, if there is a way to disable it? it built failed on linux when configure the project. Could you give us some suggestion?

BTW, I'm curious about PR #10021, why the ci test pass on linux? the port haven't been changed after it added, so it should detact the failure before, however the CI test pass, and we merged the changes, it cause failrues in CI baseline .

Failures:
CMake Error at /home/phoebe/vcpkg/downloads/tools/cmake-3.14.0-linux/cmake-3.14.0-Linux-x86_64/share/cmake-3.14/Modules/FindPackageHandleStandardArgs.cmake:137 (message):
Could NOT find KERBEROS (missing: KERBEROS_LIBRARIES KERBEROS_INCLUDE_DIR)
Call Stack (most recent call first):
/home/phoebe/vcpkg/downloads/tools/cmake-3.14.0-linux/cmake-3.14.0-Linux-x86_64/share/cmake-3.14/Modules/FindPackageHandleStandardArgs.cmake:378 (_FPHSA_FAILURE_MESSAGE)
CMake/FindKERBEROS.cmake:21 (FIND_PACKAGE_HANDLE_STANDARD_ARGS)
/home/phoebe/vcpkg/scripts/buildsystems/vcpkg.cmake:288 (_find_package)
CMakeLists.txt:20 (FIND_PACKAGE)

[kreuzerkrieg]

@PhoebeHui First, I have no idea. Second I can try and ask folks from libhdfs. And third, I guess the answer is no, it makes perfect sense - want authentication? go for gsasl, using sasl? you need kerberos.

As of making ports, gsasl and kerberos last releases were issued a century before I've born, not sure anyone needs this port, honestly I dont see any reason for making port for a package that may be provided by native package management.

[strega-nil]

@kreuzerkrieg unfortunately, afaict, Ubuntu doesn't have kerberos :/

edit: no, I'm a dummy. Let's try it.

[kreuzerkrieg]

krb5 AFAIR

[PhoebeHui]

Thank you all for taking look at this issue!