Linking errors to __dtol3, __ltod3 in Visual Studio CTP_Nov2013

[nlguillemot]

After upgrading my Visual C++ compiler to CTP_Nov2013, I started getting linking errors in win32_time.c. They were unresolved references to __dtol3 and __ltod3.

I narrowed it down to the following lines in this version of win32_time.c
Line 44 causes __ltod3:
_glfw.win32.timer.resolution = 1.0 / (double) freq;
Line 68 causes __ltod3:
t = (double)(t_64 - _glfw.win32.timer.t0_64);
Line 83 causes __dtol3:
_glfw.win32.timer.t0_64 = t_64 - (__int64) (t / _glfw.win32.timer.resolution);

Seems like casting between long longs and doubles is causing problems.

I managed to solve it by following the advice here
More specifically, I added the following line to glfw's root CMakeLists.txt in the MSVC compiler specific flags section to use SSE instead of SSE2: set (CMAKE_C_FLAGS "/arch:SSE")

I'm not sure if that's the right solution, and I'm also using a slightly out of date version of glfw. This issue might manifest itself slightly differently now.

To test it, build glfw using Visual Studio 2013 and the November 2013 CTP

[nlguillemot]

I wonder if this is related to #169, since they're both related to SSE.

[retep998]

The CTP is clearly going to be buggy, through no fault of GLFW's.
You'd be better off reporting this bug to Microsoft.
https://connect.microsoft.com/VisualStudio

[nlguillemot]

Done. https://connect.microsoft.com/VisualStudio/feedback/details/813008/linking-errors-to-dtol3-and-ltod3

Meanwhile, this workaround might be useful for others using the CTP. Do with it what you will.