Found the following significant warnings:
  ./agg/include/agg_color_rgba.h:746:30: warning: arithmetic between floating-point type 'double' and enumeration type 'agg::rgba16::base_scale_e' is deprecated [-Wdeprecated-enum-float-conversion]
  ./agg/include/agg_color_rgba.h:752:40: warning: arithmetic between floating-point type 'double' and enumeration type 'agg::rgba16::base_scale_e' is deprecated [-Wdeprecated-enum-float-conversion]
  ./agg/include/agg_color_rgba.h:947:37: warning: arithmetic between floating-point type 'double' and enumeration type 'agg::rgba16::base_scale_e' is deprecated [-Wdeprecated-enum-float-conversion]
  ./agg/include/agg_color_rgba.h:1186:37: warning: arithmetic between floating-point type 'value_type' (aka 'float') and enumeration type 'agg::cover_scale_e' is deprecated [-Wdeprecated-enum-float-conversion]
  ./agg/include/agg_color_gray.h:439:83: warning: arithmetic between floating-point type 'double' and enumeration type 'agg::gray16::base_scale_e' is deprecated [-Wdeprecated-enum-float-conversion]
  ./agg/include/agg_color_gray.h:547:30: warning: arithmetic between floating-point type 'double' and enumeration type 'agg::gray16::base_scale_e' is deprecated [-Wdeprecated-enum-float-conversion]
  ./agg/include/agg_color_gray.h:553:40: warning: arithmetic between floating-point type 'double' and enumeration type 'agg::gray16::base_scale_e' is deprecated [-Wdeprecated-enum-float-conversion]
  ./agg/include/agg_color_gray.h:708:37: warning: arithmetic between floating-point type 'double' and enumeration type 'agg::gray16::base_scale_e' is deprecated [-Wdeprecated-enum-float-conversion]
  ./agg/include/agg_color_gray.h:958:37: warning: arithmetic between floating-point type 'value_type' (aka 'float') and enumeration type 'agg::cover_scale_e' is deprecated [-Wdeprecated-enum-float-conversion]
  ./agg/include/agg_pixfmt_base.h:57:46: warning: arithmetic between floating-point type 'double' and enumeration type 'agg::cover_scale_e' is deprecated [-Wdeprecated-enum-float-conversion]
  ./agg/include/agg_image_filters.h:63:61: warning: arithmetic between floating-point type 'double' and enumeration type 'agg::image_filter_scale_e' is deprecated [-Wdeprecated-enum-float-conversion]
  ./agg/include/agg_span_image_filter.h:67:34: warning: arithmetic between floating-point type 'double' and enumeration type 'agg::image_subpixel_scale_e' is deprecated [-Wdeprecated-enum-float-conversion]
  ./agg/include/agg_span_image_filter.h:68:34: warning: arithmetic between floating-point type 'double' and enumeration type 'agg::image_subpixel_scale_e' is deprecated [-Wdeprecated-enum-float-conversion]
  ./agg/include/agg_rasterizer_sl_clip.h:38:56: warning: arithmetic between floating-point type 'double' and enumeration type 'agg::poly_subpixel_scale_e' is deprecated [-Wdeprecated-enum-float-conversion]
  ./agg/include/agg_rasterizer_sl_clip.h:54:57: warning: arithmetic between floating-point type 'double' and enumeration type 'agg::poly_subpixel_scale_e' is deprecated [-Wdeprecated-enum-float-conversion]
  ./agg/include/agg_rasterizer_sl_clip.h:69:56: warning: arithmetic between floating-point type 'double' and enumeration type 'agg::poly_subpixel_scale_e' is deprecated [-Wdeprecated-enum-float-conversion]
  ./agg/include/agg_rasterizer_sl_clip.h:81:51: warning: arithmetic between floating-point type 'double' and enumeration type 'agg::poly_subpixel_scale_e' is deprecated [-Wdeprecated-enum-float-conversion]
  ./agg/include/agg_rasterizer_sl_clip.h:82:51: warning: arithmetic between floating-point type 'double' and enumeration type 'agg::poly_subpixel_scale_e' is deprecated [-Wdeprecated-enum-float-conversion]
  ./agg/include/agg_rasterizer_sl_clip.h:95:51: warning: arithmetic between floating-point type 'double' and enumeration type 'agg::poly_subpixel_scale_e' is deprecated [-Wdeprecated-enum-float-conversion]
  ./agg/include/agg_rasterizer_sl_clip.h:96:51: warning: arithmetic between floating-point type 'double' and enumeration type 'agg::poly_subpixel_scale_e' is deprecated [-Wdeprecated-enum-float-conversion]
  ./agg/include/agg_span_gradient.h:66:28: warning: arithmetic between floating-point type 'double' and enumeration type 'agg::gradient_subpixel_scale_e' is deprecated [-Wdeprecated-enum-float-conversion]
  ./agg/include/agg_span_gradient.h:67:28: warning: arithmetic between floating-point type 'double' and enumeration type 'agg::gradient_subpixel_scale_e' is deprecated [-Wdeprecated-enum-float-conversion]
  ./agg/include/agg_span_gradient.h:75:49: warning: arithmetic between floating-point type 'double' and enumeration type 'agg::gradient_subpixel_scale_e' is deprecated [-Wdeprecated-enum-float-conversion]
  ./agg/include/agg_span_gradient.h:76:49: warning: arithmetic between floating-point type 'double' and enumeration type 'agg::gradient_subpixel_scale_e' is deprecated [-Wdeprecated-enum-float-conversion]
  ./agg/include/agg_span_gradient.h:82:45: warning: arithmetic between floating-point type 'double' and enumeration type 'agg::gradient_subpixel_scale_e' is deprecated [-Wdeprecated-enum-float-conversion]
  ./agg/include/agg_span_gradient.h:83:45: warning: arithmetic between floating-point type 'double' and enumeration type 'agg::gradient_subpixel_scale_e' is deprecated [-Wdeprecated-enum-float-conversion]
  ./agg/include/agg_span_gradient.h:220:28: warning: arithmetic between floating-point type 'double' and enumeration type 'agg::gradient_subpixel_scale_e' is deprecated [-Wdeprecated-enum-float-conversion]
  ./agg/include/agg_span_gradient.h:221:28: warning: arithmetic between floating-point type 'double' and enumeration type 'agg::gradient_subpixel_scale_e' is deprecated [-Wdeprecated-enum-float-conversion]
  ./agg/include/agg_span_gradient.h:222:28: warning: arithmetic between floating-point type 'double' and enumeration type 'agg::gradient_subpixel_scale_e' is deprecated [-Wdeprecated-enum-float-conversion]
  ./agg/include/agg_span_gradient.h:230:30: warning: arithmetic between floating-point type 'double' and enumeration type 'agg::gradient_subpixel_scale_e' is deprecated [-Wdeprecated-enum-float-conversion]
  ./agg/include/agg_span_gradient.h:231:30: warning: arithmetic between floating-point type 'double' and enumeration type 'agg::gradient_subpixel_scale_e' is deprecated [-Wdeprecated-enum-float-conversion]
  ./agg/include/agg_span_gradient.h:232:30: warning: arithmetic between floating-point type 'double' and enumeration type 'agg::gradient_subpixel_scale_e' is deprecated [-Wdeprecated-enum-float-conversion]
  ./agg/include/agg_span_gradient.h:237:54: warning: arithmetic between floating-point type 'double' and enumeration type 'agg::gradient_subpixel_scale_e' is deprecated [-Wdeprecated-enum-float-conversion]
  ./agg/include/agg_span_gradient.h:238:54: warning: arithmetic between floating-point type 'double' and enumeration type 'agg::gradient_subpixel_scale_e' is deprecated [-Wdeprecated-enum-float-conversion]
  ./agg/include/agg_span_gradient.h:239:54: warning: arithmetic between floating-point type 'double' and enumeration type 'agg::gradient_subpixel_scale_e' is deprecated [-Wdeprecated-enum-float-conversion]
  ./agg/include/agg_rasterizer_scanline_aa.h:136:62: warning: arithmetic between floating-point type 'double' and enumeration type 'agg::rasterizer_scanline_aa<>::aa_scale_e' is deprecated [-Wdeprecated-enum-float-conversion]
  ./agg/include/agg_rasterizer_scanline_aa.h:136:73: warning: arithmetic between floating-point type 'double' and enumeration type 'agg::rasterizer_scanline_aa<>::aa_scale_e' is deprecated [-Wdeprecated-enum-float-conversion]
  ./agg/include/agg_span_interpolator_linear.h:62:32: warning: arithmetic between floating-point type 'double' and enumeration type 'agg::span_interpolator_linear<>::subpixel_scale_e' is deprecated [-Wdeprecated-enum-float-conversion]
  ./agg/include/agg_span_interpolator_linear.h:63:32: warning: arithmetic between floating-point type 'double' and enumeration type 'agg::span_interpolator_linear<>::subpixel_scale_e' is deprecated [-Wdeprecated-enum-float-conversion]
  ./agg/include/agg_span_interpolator_linear.h:68:32: warning: arithmetic between floating-point type 'double' and enumeration type 'agg::span_interpolator_linear<>::subpixel_scale_e' is deprecated [-Wdeprecated-enum-float-conversion]
  ./agg/include/agg_span_interpolator_linear.h:69:32: warning: arithmetic between floating-point type 'double' and enumeration type 'agg::span_interpolator_linear<>::subpixel_scale_e' is deprecated [-Wdeprecated-enum-float-conversion]
  ./agg/include/agg_color_rgba.h:354:30: warning: arithmetic between floating-point type 'double' and enumeration type 'agg::rgba8T<agg::linear>::base_scale_e' is deprecated [-Wdeprecated-enum-float-conversion]
  ./agg/include/agg_color_rgba.h:360:40: warning: arithmetic between floating-point type 'double' and enumeration type 'agg::rgba8T<agg::linear>::base_scale_e' is deprecated [-Wdeprecated-enum-float-conversion]
  ./agg/include/agg_path_storage_integer.h:53:40: warning: arithmetic between floating-point type 'double' and enumeration type 'agg::vertex_integer<int>::coord_scale_e' is deprecated [-Wdeprecated-enum-float-conversion]
  ./agg/include/agg_path_storage_integer.h:54:40: warning: arithmetic between floating-point type 'double' and enumeration type 'agg::vertex_integer<int>::coord_scale_e' is deprecated [-Wdeprecated-enum-float-conversion]
  ./agg/include/agg_gradient_lut.h:212:63: warning: arithmetic between floating-point type 'double' and enumeration type 'agg::gradient_lut<agg::color_interpolator<rgba8>, 512>::(unnamed enum at ./agg/include/agg_gradient_lut.h:124:9)' is deprecated [-Wdeprecated-enum-float-conversion]
  ./agg/include/agg_gradient_lut.h:221:57: warning: arithmetic between floating-point type 'double' and enumeration type 'agg::gradient_lut<agg::color_interpolator<rgba8>, 512>::(unnamed enum at ./agg/include/agg_gradient_lut.h:124:9)' is deprecated [-Wdeprecated-enum-float-conversion]
  ./agg/include/agg_gradient_lut.h:212:63: warning: arithmetic between floating-point type 'double' and enumeration type 'agg::gradient_lut<agg::color_interpolator<agg::rgba16>, 512>::(unnamed enum at ./agg/include/agg_gradient_lut.h:124:9)' is deprecated [-Wdeprecated-enum-float-conversion]
  ./agg/include/agg_gradient_lut.h:221:57: warning: arithmetic between floating-point type 'double' and enumeration type 'agg::gradient_lut<agg::color_interpolator<agg::rgba16>, 512>::(unnamed enum at ./agg/include/agg_gradient_lut.h:124:9)' is deprecated [-Wdeprecated-enum-float-conversion]
  ./agg/include/agg_path_storage_integer.h:53:40: warning: arithmetic between floating-point type 'double' and enumeration type 'agg::vertex_integer<short>::coord_scale_e' is deprecated [-Wdeprecated-enum-float-conversion]
  ./agg/include/agg_path_storage_integer.h:54:40: warning: arithmetic between floating-point type 'double' and enumeration type 'agg::vertex_integer<short>::coord_scale_e' is deprecated [-Wdeprecated-enum-float-conversion]
See ‘/data/gannet/ripley/R/packages/tests-clang/ragg.Rcheck/00install.out’ for details.
* used C++ compiler: ‘clang version 21.1.8’