Unable to install in CentOS 7

[eletious]

Hello,

I am unable to build ulfius in CentOS 7 - using the makefile directions, I've installed Orcania, but yder fails to install with the following output:

cd ./src && make make[1]: Entering directory /REDACTED/ulfius/lib/yder/src'
gcc -shared -Wl,-soname,libyder.so -o libyder.so.1.2.1 yder.o -lc -lorcania
/usr/bin/ld: cannot find -lorcania
collect2: error: ld returned 1 exit status
make[1]: *** [libyder.so] Error 1
make[1]: Leaving directory /REDACTED/ulfius/lib/yder/src' make: *** [libyder.so] Error 2

I'm building as root on a CI server - does this require that you build as a nonroot user?

[babelouest]

Usually, the error cannot find -lorcania can be fixed with re-running the command sudo ldconfig. Ulfius doesn't have to be compiled as root (although it can be), only the make install command has to be executed as root.

Maybe a better way for your automatisation is to install ulfius with the cmake script though.

$ mkdir build
$ cd build
$ cmake .. 
$ make && sudo make install

[eletious]

I attempted to use cmake initially, but centos7 uses the wrong version of cmake - >= 3.5 is required, but centos bundles 2.8.12.2

I also was unable to get it built after running ldconfig, though that should have made orcania available for use if I'm understanding this correctly.

[babelouest]

I assume you install it with the default params. i.e. in /usr/local/lib.

Do you have liborcania* files in this folder after installing Orcania? What are they?

[eletious]

I have liborcania.so.1.2.1 in that directory

[babelouest]

After a quick test on a Docker image, I found the solution and was able to install ulfius.

You need to add /usr/local/lib at the end of the file /etc/ld.so.conf and run ldconfig -v as root as explained here: https://serverfault.com/a/372998

Then you should be able to build properly orcania, yider, ulfius, then your application

[babelouest]

The packages I had to install were:

gnutls-devel
systemd-devel
libmicrohttpd-devel
jansson-devel
libcurl-devel
make
gcc

I'll update the documentation for CentOS.

[eletious]

The library exists now, and I was able to make install, however now the project I'm working on won't compile... undefined references to all of the functions I used from ulfius, which I now get in Ubuntu as well. Must be doing something wrong on my end...

[babelouest]

I could make the simple example working in my case.
Maybe you had a -lulfius or a ldconfig missing.

[babelouest]

@eletious , any update?