S11.3 FCS only workaround for

19337921 - C99 math needs to be in namespace std for C++11 and later

which is available in Oracle Solaris 11.3.3.6.0 (or greater).

--- firefox-45.1.1esr/dom/canvas/CanvasRenderingContext2D.cpp

+++ firefox-45.1.1esr/dom/canvas/CanvasRenderingContext2D.cpp

@@ -2495,8 +2495,8 @@

// The values of canvas API input are in double precision, but Moz2D APIs are

// using float precision. Bypass canvas API calls when the input is out of

// float precision to avoid precision problem

- if (!std::isfinite((float)aX) | !std::isfinite((float)aY) |

- !std::isfinite((float)aWidth) | !std::isfinite((float)aHeight)) {

+ if (!isfinite((float)aX) | !isfinite((float)aY) |

+ !isfinite((float)aWidth) | !isfinite((float)aHeight)) {

return false;

}