Created attachment 269371 [details] Build fix When building with clang++/libc++ on Linux, the build fails with the following error: [ 14%] Building CXX object Source/WebCore/CMakeFiles/WebCore.dir/rendering/shapes/BoxShape.cpp.o /home/armin/src/webkitgtk-2.10.5/Source/WebCore/rendering/shapes/BoxShape.cpp:46:40: error: call to 'pow' is ambiguous return radius + (margin * (1 + pow(ratio - 1, 3))); ^~~~~~~~ /usr/include/bits/mathcalls.h:153:17: note: candidate function __MATHCALL_VEC (pow,, (_Mdouble_ __x, _Mdouble_ __y)); ^ /usr/bin/../include/c++/v1/math.h:869:46: note: candidate function inline _LIBCPP_INLINE_VISIBILITY float pow(float __lcpp_x, float __lcpp_y) _NOEXCEPT {return powf(__lcpp_x, __lcpp_y);} ^ /usr/bin/../include/c++/v1/math.h:870:46: note: candidate function inline _LIBCPP_INLINE_VISIBILITY long double pow(long double __lcpp_x, long double __lcpp_y) _NOEXCEPT {return powl(__lcpp_x, __lcpp_y);} The problem is that both arguments passed to pow are integers and compiler can't decide whether to convert it to float, double or long double. It has to be explicitly converted. Attached patch works for me since floating point numbers will be treated as double by default in C++.
Thanks. Already fixed in r195011.