Cygwin build fixes. (#158)
Cygwin build fixes. (#158)

* Cygwin build fixes. https://github.com/mmp/pbrt-v3/issues/155

* HAVE_ATTRIBUTE_NOINLINE is chosen first

* Revert __declspec(thread) unescaped

nyue/pbrt-v3,mmp/pbrt-v3,mmp/pbrt-v3,nyue/pbrt-v3,mmp/pbrt-v3,mmp/pbrt-v3,nyue/pbrt-v3,nyue/pbrt-v3