While backporting the 605.1 WebKit to FX 8u, we discovered that the cmake platform string for 32-bit Linux in build.gradle was wrong. It had been changed to x86 in FX 10, but should have been i586. This error was causing cmake to fail to identify the JDK platform correctly when using JDK 8u as a boot JDK (which is what we ned to use to build FX 8u). This was fixed in 8u and now needs to be fixed in 10 to make them consistent.