Hi there 
That’s an extra rookie question, but could you point what I am missing? Trying to build something which needs some headers, and one header doesn’t “see” the other one, which is in same directory. I am confused a bit.
Initial try:
~> go get github.com/go-piv/piv-go/piv
go: found github.com/go-piv/piv-go/piv in github.com/go-piv/piv-go v1.5.0
# github.com/go-piv/piv-go/piv
../devel/go/pkg/mod/github.com/go-piv/piv-go@v1.5.0/piv/pcsc_unix.go:26:11: fatal error: PCSC/winscard.h: No such file or directory
26 | // #include <PCSC/winscard.h>
| ^~~~~~~~~~~~~~~~~
compilation terminated.
Alright let’s add the package and retry:
~> nix-shell -p pcsclite.dev
[nix-shell:~]$ go get github.com/go-piv/piv-go/piv
go: found github.com/go-piv/piv-go/piv in github.com/go-piv/piv-go v1.5.0
# github.com/go-piv/piv-go/piv
In file included from ../devel/go/pkg/mod/github.com/go-piv/piv-go@v1.5.0/piv/pcsc_unix.go:26:
/nix/store/j9chaig079f4h1srv4rd4vpfzw73ij9w-pcsclite-1.8.26-dev/include/PCSC/winscard.h:41:10: fatal error: pcsclite.h: No such file or directory
41 | #include <pcsclite.h>
| ^~~~~~~~~~~~
compilation terminated.
Checking if it uses correct path or not:
~> nix repl
Welcome to Nix version 2.3.4. Type :? for help.
nix-repl> :l <nixpkgs>
Added 11493 variables.
nix-repl> pkgs.pcsclite.dev.outPath
"/nix/store/j9chaig079f4h1srv4rd4vpfzw73ij9w-pcsclite-1.8.26-dev"
Looks OK, let me see the files in this path:
~> ls -l /nix/store/j9chaig079f4h1srv4rd4vpfzw73ij9w-pcsclite-1.8.26-dev/include/PCSC
total 84
-r--r--r-- 1 root root 4964 Jan 1 1970 debuglog.h
-r--r--r-- 1 root root 30508 Jan 1 1970 ifdhandler.h
-r--r--r-- 1 root root 15634 Jan 1 1970 pcsclite.h
-r--r--r-- 1 root root 15557 Jan 1 1970 reader.h
-r--r--r-- 1 root root 4151 Jan 1 1970 winscard.h
-r--r--r-- 1 root root 3115 Jan 1 1970 wintypes.h
pcsclite.h is here, but build fails because it can’t find while evaluating winscard.h ?
