Error message mentions header that doesn't exist
gcr-gtk3/gcr-secure-entry-buffer.h:#error "Only <gcr/gcr.h> or <gcr/gcr-base.h> can be included directly."
gcr-gtk3/gcr-secure-entry-buffer.h:#error "Only <gcr/gcr.h> or <gcr/gcr-base.h> can be included directly."