pytorch is using shaderc_combined.a. There's a shaderc_combined.pc in shaderc, but it doesn't lists glslang or spirv as dependencies, even though shaderc uses

pytorch is using shaderc_combined.a. There's a shaderc_combined.pc in shaderc, but it doesn't lists glslang or spirv as dependencies, even though shaderc uses glslang and spirv data structures and functions. Errrrr. How's that supposed to work?