pkg syscall (freebsd-386-cgo), const SYS_LSTAT ideal-int
pkg syscall (freebsd-386-cgo), const SYS_MKNODAT = 498
pkg syscall (freebsd-386-cgo), const SYS_STAT = 188
pkg syscall (freebsd-386-cgo), const SYS_STAT ideal-int
pkg syscall (freebsd-386-cgo), const SYS_STATFS = 396
pkg syscall (freebsd-amd64), const SYS_FSTAT = 189
pkg syscall (freebsd-amd64), const SYS_FSTATAT = 493

pkg math (freebsd-amd64), const MinInt = -9223372036854775808
pkg math (freebsd-amd64-cgo), const MaxInt = 9223372036854775807
pkg math (freebsd-amd64-cgo), const MaxUint = 18446744073709551615
pkg math (freebsd-amd64-cgo), const MinInt = -9223372036854775808
pkg math (freebsd-arm), const MaxInt = 2147483647
pkg math (freebsd-arm), const MaxUint = 4294967295
pkg math (freebsd-arm), const MinInt = -2147483648

pkg syscall (freebsd-386), type SysProcAttr struct, Pdeathsig Signal
pkg syscall (freebsd-386-cgo), type SysProcAttr struct, Pdeathsig Signal
pkg syscall (freebsd-amd64), type SysProcAttr struct, Pdeathsig Signal
pkg syscall (freebsd-amd64-cgo), type SysProcAttr struct, Pdeathsig Signal
pkg syscall (freebsd-arm), type SysProcAttr struct, Pdeathsig Signal
pkg syscall (freebsd-arm-cgo), type SysProcAttr struct, Pdeathsig Signal

    public static final MacOs MAC_OS = new MacOs();
    public static final Solaris SOLARIS = new Solaris();
    public static final Linux LINUX = new Linux();
    public static final FreeBSD FREE_BSD = new FreeBSD();
    public static final Unix UNIX = new Unix();
    private static OperatingSystem currentOs;
    private final String toStringValue;
    private final String osName;
    private final String osVersion;

pkg syscall (freebsd-386-cgo), type SysProcAttr struct, Jail int #46259
pkg syscall (freebsd-386), type SysProcAttr struct, Jail int #46259
pkg syscall (freebsd-amd64-cgo), type SysProcAttr struct, Jail int #46259
pkg syscall (freebsd-amd64), type SysProcAttr struct, Jail int #46259
pkg syscall (freebsd-arm64-cgo), type SysProcAttr struct, Jail int #46259
pkg syscall (freebsd-arm64), type SysProcAttr struct, Jail int #46259

	;;
freebsd_386)
	mkerrors="$mkerrors -m32"
	mksyscall="./mksyscall.pl -l32"
	mksysnum="curl -s 'http://svn.freebsd.org/base/stable/10/sys/kern/syscalls.master' | ./mksysnum_freebsd.pl"
	mktypes="GOARCH=$GOARCH go tool cgo -godefs"
	;;
freebsd_amd64)
	mkerrors="$mkerrors -m64"
	mksysnum="curl -s 'http://svn.freebsd.org/base/stable/10/sys/kern/syscalls.master' | ./mksysnum_freebsd.pl"
	mktypes="GOARCH=$GOARCH go tool cgo -godefs"
	;;

        expect:
        OperatingSystem.current() instanceof OperatingSystem.Linux
    }

    def "uses os.name property to determine if freebsd"() {
        System.properties['os.name'] = 'FreeBSD'

        expect:
        OperatingSystem.current() instanceof OperatingSystem.FreeBSD
    }

    def "uses default implementation for other os"() {
        System.properties['os.name'] = 'unknown'

        expect:

	// cpuset_getaffinity return ERANGE when provided buffer size exceed the limits in kernel.
	// Querying kern.smp.maxcpus to calculate maximum buffer size.
	// See https://bugs.freebsd.org/bugzilla/show_bug.cgi?id=200802

	// Variable kern.smp.maxcpus introduced at Dec 23 2003, revision 123766,
	// with dynamically assigned sysctl entries.
	miblen := sysctlnametomib([]byte("kern.smp.maxcpus"), &mib)

		return matchTag(l[n-1], tags, true)
	}
	return true
}

var KnownOS = map[string]bool{
	"aix":       true,
	"android":   true,
	"darwin":    true,
	"dragonfly": true,
	"freebsd":   true,
	"hurd":      true,
	"illumos":   true,
	"ios":       true,
	"js":        true,
	"linux":     true,
	"nacl":      true, // legacy; don't remove
	"netbsd":    true,
	"openbsd":   true,

.Installing with a package manager
[%collapsible]
====

link:http://sdkman.io[SDKMAN!] is a tool for managing parallel versions of multiple Software Development Kits on most Unix-like systems (macOS, Linux, Cygwin, Solaris and FreeBSD).
Gradle is deployed and maintained by SDKMAN!:

----
❯ sdk install gradle
----

Other package managers are available, but the version of Gradle distributed by them is not controlled by Gradle, Inc.