[xiphos-source] [crosswire/xiphos] 9dbe54: Rescope extern C declaration to avoid compile errors

[Aaron Rainbolt]

  Branch: refs/heads/arraybolt3/fix_compile_errors
  Home:   https://github.com/crosswire/xiphos
  Commit: 9dbe5407de9f14786ced9a7c6c1b70596b71d94e
      https://github.com/crosswire/xiphos/commit/9dbe5407de9f14786ced9a7c6c1b70596b71d94e
  Author: Aaron Rainbolt <arraybolt3 at gmail.com>
  Date:   2023-10-07 (Sat, 07 Oct 2023)

  Changed paths:
    M src/main/sword.h

  Log Message:
  -----------
  Rescope extern C declaration to avoid compile errors