PKG_CONFIG_PATH environment variable for building on CentOS/RHEL

[haxrob]

export PKG_CONFIG_PATH=/usr/local/lib/pkgconfig was required when building for CentOS/RHEL 6 and 7.

This is actually noted in a forum post here, although the information was never propagated into the respective README. It would be useful information for those running into compilation issues on the above Linux distributions.

[klali]

So typically pkg-config looks in /usr/lib/pkgconfig if we write something around this it should be geared around that it should point to the location where the pkg-config files for dependencies are (which are prefix relative in lib/pkgconfig). Do you have a suggestion for wording? If so please submit a pull request with a change to the README.

[thorduri]

@packetflare:

Could you expand on your steps, I just completed the following steps with out issues:

: ~ $; rpm --query centos-release
centos-release-7-1.1503.el7.centos.2.8.x86_64

: ~ $; sudo yum groupinstall 'Development Tools'
...
: ~ $; sudo yum install asciidoc libusb-devel
...

: ~ $; cd yubico-c
: ~/yubico-c $; autoreconf -i && ./configure && make && sudo make install
...

: ~/yubico-c $; cd ../yubikey-personalization
: ~/yubico-c $; autoreconf -i && ./configure && make && sudo make install
...

Further:

: ~ $; pkg-config --list-all | grep libusb
libusb           libusb - USB access library (libusb-1.0 compat wrapper)

Are you perchance building and installing libusb from source ? (In which case, the default prefix is /usr/local).

In general, Yubico projects depend on their dependencies being installed via the appropriate package manager for each distribution.

[muatsoftgit]

Install the development package as:

apt install libopencv-dev

--credit: https://stackoverflow.com/users/6481121/ipor-sircer