Build minio version 2021-04-22T15-44-28Z on SmartOS with pkgsrc:

build_minio_client_on_SmartOS

go get -d github.com/minio/mc
GOOS=solaris GOARCH=amd64 GO111MODULE=on go get github.com/minio/mc

build_minio_on_SmartOS

pkgin -y in git go gcc7 gmake

MINIO_VERSION="20210503015340-6c8fddb70f27"

go get -d github.com/minio/minio

chmod 0644 go/pkg/mod/github.com/ncw/directio@v1.0.5/direct_io_unix.go
sed -i \
    "s/return os.OpenFile(name, syscall.O_DIRECT|flag, perm)/return os.OpenFile(name, flag, perm)/" \
    go/pkg/mod/github.com/ncw/directio@v1.0.5/direct_io_unix.go
chmod 0444 go/pkg/mod/github.com/ncw/directio@v1.0.5/direct_io_unix.go

chmod 0644 go/pkg/mod/github.com/minio/minio@v0.0.0-${MINIO_VERSION}/Makefile
sed -i \
    -e "s#buildscripts/gen-ldflags.go#buildscripts/gen-ldflags.go \$(VERS)#" \
    -e "s/@GO111MODULE=on CGO_ENABLED=0/@GO111MODULE=on CGO_ENABLED=1/" \
    go/pkg/mod/github.com/minio/minio@v0.0.0-${MINIO_VERSION}/Makefile
chmod 0444 go/pkg/mod/github.com/minio/minio@v0.0.0-${MINIO_VERSION}/Makefile

chmod 0644 go/pkg/mod/github.com/minio/minio@v0.0.0-${MINIO_VERSION}/go.mod
sed -i \
    -e "s#github.com/rjeczalik/notify v0.9.2#github.com/rjeczalik/notify master#" \
    go/pkg/mod/github.com/minio/minio@v0.0.0-${MINIO_VERSION}/go.mod
chmod 0444 go/pkg/mod/github.com/minio/minio@v0.0.0-${MINIO_VERSION}/go.mod

(cd go/pkg/mod/github.com/minio/minio@v0.0.0-${MINIO_VERSION} ; go mod download github.com/rjeczalik/notify)

GOOS=solaris GOARCH=amd64 GO111MODULE=on go get github.com/minio/minio

cp ./go/bin/minio /opt/local/bin/minio

minio server /data