Make autoconf recognize the amd64 architecture.

diff --git a/lib/autoconf.cfg b/lib/autoconf.cfg
index 4dcff1dd499515c92baa8e3aa0f746c441f63d16..0e8496dc85d883fa64a9fde491005a87fc6d74cf 100644 (file)
--- a/lib/autoconf.cfg
+++ b/lib/autoconf.cfg
@@ -90,6 +90,14 @@ Test("CPU_ARCH", "Checking for CPU architecture", sub {
                        }
                }
                return $arch ? $arch : "i386";
+       } elsif ($mach =~ /^(x86[_-]|amd)64$/) {
+               Set("CPU_AMD64");
+               Set("CPU_64BIT_POINTERS");
+               Set("CPU_LITTLE_ENDIAN");
+               UnSet("CPU_BIG_ENDIAN");
+               Set("CPU_ALLOW_UNALIGNED");
+               Set("CPU_STRUCT_ALIGN" => 8);
+               return "x86-64";
        } else {
                return "unknown";
        }