Gentoo's Bugzilla –
Attachment 618052 Details for
Bug 712186media-libs/vulkan-layers-1.2.133-r1 (fixed using 1.2.133 sources): shader_validation.cpp:2851:33: error: ‘SPV_ENV_VULKAN_1_2’ was not declared in this scope; did you mean ‘SPV_ENV_VULKAN_1_1’?