Snippets for gmt 6.6.0 from Nix aarch64-darwin

Sourced from https://hydra.nixos.org/log/g30w0gfqhjh4002gfqkf8zp47xqsr971-gmt-6.6.0.drv.

• /nix/var/nix/builds/nix-5399-4176096046/source/src/gmt_remote.c:732:7: warning: call to 'Wcurl_easy_setopt_err_long' declared with 'warning' attribute: curl_easy_setopt expects a long argument [-Wattribute-warning]
    732 |                 if (curl_easy_setopt (Curl, CURLOPT_TIMEOUT, time_out)) {
        |                     ^
  

• /nix/var/nix/builds/nix-5399-4176096046/source/src/gmt_gdalread.c:1044:15: warning: 'GDALGetDataTypeSize' is deprecated: Use GDALGetDataTypeSizeBits() or GDALGetDataTypeSizeBytes() * 8 instead [-Wdeprecated-declarations]
   1044 |         nPixelSize = GDALGetDataTypeSize(GDALGetRasterDataType(hBand)) / 8;     /* /8 because return value is in BITS */
        |                      ^
  

• /nix/var/nix/builds/nix-5399-4176096046/source/src/gmt_gdalcall.c:187:15: warning: 'GDALGetDataTypeSize' is deprecated: Use GDALGetDataTypeSizeBits() or GDALGetDataTypeSizeBytes() * 8 instead [-Wdeprecated-declarations]
    187 |         nPixelSize = GDALGetDataTypeSize(GDALGetRasterDataType(hBand)) / 8;     /* /8 because return value is in BITS */
        |                      ^