Incompatibility with Go 1.20rc1 about piv-go

[ericchiang]

Smaller reproducer

package main

// #cgo darwin LDFLAGS: -framework PCSC
// #include <PCSC/winscard.h>
// #include <PCSC/wintypes.h>
import "C"
import "fmt"

func main() {
	var ctx C.SCARDCONTEXT
	rc := int64(C.SCardEstablishContext(C.SCARD_SCOPE_SYSTEM, nil, nil, &ctx))
	if rc < 0 {
		// Fix two's complement bit.
		rc += (1 << 32)
	}
	fmt.Printf("0x%08x\n", rc)
	if rc == C.SCARD_S_SUCCESS {
		C.SCardReleaseContext(ctx)
	}
}

% go1.20rc1 run repro.go
0x8010001d
% go run repro.go 
0x00000000

[ericchiang]

This should be fixed upstream golang/go#57263

Thanks for reporting!

[ericchiang]

That's really weird, I can reproduce as well

% go version
go version go1.19.2 darwin/amd64
% go run hello.go                    
[]
% go1.20rc1 run hello.go
connecting to pscs: the Smart card resource manager is not running
exit status 1