| // Note that ndk-build adds `-include $(LOCAL_PCH)`, so we can be sure that we | |
| // are in fact getting the PCH here by just not including the header. If we tag | |
| // it wrong, the `-include` flag won't be passed. | |
| // | |
| // We can't add the same check to maybe_tagged.cpp because for the case where it | |
| // is a tagged source it specifically will *not* use the PCH. | |
| #ifndef READ_PCH | |
| #error "Did not read precompiled header." | |
| #endif |