gcc 4.8 complains that these overloaded uses of pow and max are ambiguous.

Casts were used to for the selection of a specific version of the

overloaded function, but it is unclear whether they are correct or it is a

compiler bug.

file upstream bug to determine correct fix

--- webkitgtk-2.8.3/Source/WebCore/rendering/shapes/BoxShape.cpp 2015-04-08 23:54:01.000000000 -0700

+++ webkitgtk-2.8.3/Source/WebCore/rendering/shapes/BoxShape.cpp 2015-07-10 22:53:20.304109354 -0700

@@ -43,7 +43,7 @@

LayoutUnit ratio = radius / margin;

if (ratio < 1)

- return radius + (margin * (1 + pow(ratio - 1, 3)));

+ return radius + (margin * (1 + pow(static_cast<double>(ratio) - 1, static_cast<int>(3))));

return radius + margin;

}

--- webkitgtk-2.8.3/Source/WebCore/rendering/shapes/RasterShape.cpp 2015-04-08 23:54:01.000000000 -0700

+++ webkitgtk-2.8.3/Source/WebCore/rendering/shapes/RasterShape.cpp 2015-07-10 23:06:46.832444967 -0700

@@ -142,7 +142,7 @@

return *m_intervals;

int shapeMarginInt = clampToPositiveInteger(ceil(shapeMargin()));

- int maxShapeMarginInt = std::max(m_marginRectSize.width(), m_marginRectSize.height()) * sqrt(2);

+ int maxShapeMarginInt = std::max(m_marginRectSize.width(), m_marginRectSize.height()) * sqrt(static_cast<float>(2));

if (!m_marginIntervals)

m_marginIntervals = m_intervals->computeShapeMarginIntervals(std::min(shapeMarginInt, maxShapeMarginInt));