Gentoo's Bugzilla –
Attachment 495320 Details for
Bug 631382media-libs/openexr-2.2.0 - openexr-2.2.0-fix-build-system.patch breaks build system: In file included from backend/povray.cpp:102:0: /usr/include/OpenEXR/OpenEXRConfig.h:83:40: error: too many decimal points in number