--- source/i18n/precision.cpp.orig	2017-05-17 11:05:56.517416029 +0000
+++ source/i18n/precision.cpp	2017-05-17 11:05:22.700828110 +0000
@@ -227,7 +227,7 @@
     }
     // Try to find n such that value * 10^n is an integer
     int32_t n = -1;
-    double scaled;
+    volatile double scaled; // make sure scaled is in memory to avoid excess precision with x87 math
     for (int32_t i = 0; i < UPRV_LENGTHOF(gPower10); ++i) {
         scaled = value * gPower10[i];
         if (scaled > MAX_INT64_IN_DOUBLE || scaled < -MAX_INT64_IN_DOUBLE) {