message: build(IConvDownload): Use IPFS for download
  gnu.ftp.org is timing out.
diff: @@ -46,7 +46,7 @@ endif()
  ExternalProject_Add(${Iconv_LIBRARY}
  PREFIX ${Iconv_DIR}
  - URL "https://ftp.gnu.org/pub/gnu/libiconv/libiconv-1.16.tar.gz"
  + URL "https://bafybeid2yl6aeunciy5rynjmaoxkhhau3jgjpv7x25pylby7hq6n23c57i.ipfs.dweb.link/libiconv-1.16.tar.gz"
  URL_HASH SHA256=e6a1b1b589654277ee790cce3734f07876ac4ccfaecbee8afa0b649cf529cc04
  CONFIGURE_COMMAND ${Iconv_CONFIGURE_COMMAND}
  BUILD_COMMAND ${Iconv_BUILD_COMMAND}
  