Compiling project

[PerceptMD]

While trying to compile this project there are lots of errors with dependencies and includes under Ubuntu 20.04.
I fixed a lot of them but still I am not able to compile. If I get a running version I could provide a pull request.
Currently the linker fails with:

[ 83%] Linking CXX executable devel/lib/fast_gicp/gicp_align
/usr/bin/ld: /lib/x86_64-linux-gnu/libpng16.so.16: undefined reference to `inflateReset2@ZLIB_1.2.3.4'
/usr/bin/ld: /lib/x86_64-linux-gnu/libpng16.so.16: undefined reference to `inflateValidate@ZLIB_1.2.9'
collect2: error: ld returned 1 exit status
make[2]: *** [CMakeFiles/gicp_align.dir/build.make:215: devel/lib/fast_gicp/gicp_align] Fehler 1
make[1]: *** [CMakeFiles/Makefile2:357: CMakeFiles/gicp_align.dir/all] Fehler 2
make: *** [Makefile:160: all] Fehler 2

zlib is installed by sudo apt install zlib1g-dev as well as libpng16 but I can not find a way to link it with CMake. Any ideas whats going wrong?

[koide3]

Because I didn't use libpng in this package, I guess this error stems from PCL. What version of PCL are you using? Can you try to install it using apt-get?

[PerceptMD]

Im sry, the error was based on the fact that I installed nvbio from source into my system. This messed up the zlib versions found by CMake. All PCL related projects failed because of this.

I deleted the zlib files installed by nvbio and reinstalled VTK which reinstalled the necessary zlib. Now PCL projects are working again.

Regarding this repo I had to call git submodule update --init --recursive to really get all the submodules of this repo. The initial git clone https://github.com/SMRT-AIST/fast_gicp --recursive somehow failed.

Still I am facing tons of errors while compiling. I already found workarounds for a few but I can not belief that I have to change so many includes and PointCloud::Ptr's.
Should I open up a new issue or could we discuss this here?

[koide3]

Should I open up a new issue or could we discuss this here?

Yeah, please open another issue for discussion.