native linux 64-bit support v2

Here is new results (v2) compared with 32-bit binary compiled from rebolsource/master, two progressions, no regressions:

--- r_2_101_0_4_4_4FEDCD_3B0B1B.log	2013-08-15 17:26:39.313452923 -0400
+++ r_2_101_0_4_40_2A2D0E_3B0B1B.log	2013-08-15 17:25:55.883452777 -0400
@@ -4832,13 +4832,13 @@
 [0.1 == round/half-down/to 0.15 0.1] "succeeded"
 [0.2 == round/half-down/to 0.15001 0.1] "succeeded"
 [0.5 == round/half-down/to 0.55 0.1] "succeeded"
-[0.6 == round/half-down/to 0.55001 0.1] "failed"
+[0.6 == round/half-down/to 0.55001 0.1] "succeeded"
 [0.5 == round/half-down/to 0.75 0.5] "succeeded"
 [1.0 == round/half-down/to 0.75001 0.5] "succeeded"
 [-0.1 == round/half-down/to -0.15 0.1] "succeeded"
 [-0.2 == round/half-down/to -0.15001 0.1] "succeeded"
 [-0.5 == round/half-down/to -0.55 0.1] "succeeded"
-[-0.6 == round/half-down/to -0.55001 0.1] "failed"
+[-0.6 == round/half-down/to -0.55001 0.1] "succeeded"
 [-0.5 == round/half-down/to -0.75 0.5] "succeeded"
 [-1.0 == round/half-down/to -0.75001 0.5] "succeeded"
 [0 = sign? 0] "succeeded"
@@ -8415,12 +8415,12 @@
 ] "failed, error was caused in the test code"
 [equal? read write clipboard:// c: "test" c] "failed, error was caused in the test code"
 
-system/version: 2.101.0.4.4
-code-checksum: #{4FEDCD0F4356F664949FE41134E36AAFAEC70D6D}
+system/version: 2.101.0.4.40
+code-checksum: #{2A2D0E7D182EF96C03F28B3029298D382595872A}
 test-checksum: #{3B0B1B192826AC212C0C7A38527CD6253FC0135F}
 Total: 4662
-Succeeded: 4178
-Test-failures: 160
+Succeeded: 4180
+Test-failures: 158
 Crashes: 16
 Dialect-failures: 0
 Skipped: 308