libzscanner: public interface cleanup

Currently src/zscanner/Makefile.am contains following ugliness:

libzscanner_la_LDFLAGS = ... -export-symbols-regex '^(zscanner|scanner|file_loader)_|^date_to_timestamp'

This is very similar to #200 (closed). The interface should be cleaned up to use a common prefix (e.g., zscanner_,scanner_, ...) and the visibility macros.

Note that date_to_timestamp is required by zscanner unit tests only.

@ondrej @dsalzman

Reassigned to @dsalzman

The zscanner interface was reduced to (!186 (merged)): zs_errorname zs_loader_create zs_loader_free zs_loader_process zs_scanner_create zs_scanner_free zs_scanner_process zs_strerror

So the next step will be to replace the export-symbols-regex with a visibility attribute when other libraries are ready.

Status changed to closed