ss.ss_flags = 0;
	ss.ss_size = CSIGSTKSZ;
	if (sigaltstack(&ss, &oss) < 0) {
		perror("sigaltstack");
		abort();
	}
}

static void restoreSignalStack(void) {
#if (defined(__x86_64__) || defined(__i386__)) && defined(__APPLE__)
	// The Darwin C library enforces a minimum that the kernel does not.
	// This is OK since we allocated this much space in mpreinit,
	// it was just removed from the buffer by stackalloc.

        }
        return new VersionNumber(major, minor, patch, null);
    }

    private ArchitectureInternal determineArchitecture(Map<String, String> defines) {
        boolean i386 = defines.containsKey("__i386__");
        boolean amd64 = defines.containsKey("__amd64__");
        final ArchitectureInternal architecture;
        if (i386) {
            architecture = Architectures.forInput("i386");
        } else if (amd64) {

    static def gccNoMinor = """#define __gnu_linux__ 1
#define __GNUC__ 3
#define __GNUC_PATCHLEVEL__ 4
"""
    static def gccX86 = """#define __GNUC_MINOR__ 2
#define __GNUC_PATCHLEVEL__ 1
#define __GNUC__ 4
#define __i386__ 1
"""
    static def gccMingw = """#define __GNUC_MINOR__ 0
#define __GNUC_PATCHLEVEL__ 0
#define __GNUC__ 10
"""

    static def gccAmd64 = """#define __GNUC_MINOR__ 2
#define __GNUC_PATCHLEVEL__ 1

    ${outputPlatform()}
}
        """)
    ]

    def outputPlatform() {
        return """
    #if defined(__x86_64__) || defined(_M_X64)
    cout << "amd64";
    #elif defined(__i386) || defined(_M_IX86)
    cout << "i386";
    #elif defined(_M_IA64)
    cout << "itanium";
    #else
    cout << "unknown";
    #endif
    cout << " ";

    #if defined(__linux__)
    cout << "linux";