Compilation fails when linking against a libpng without the apng patch set applied.

Would it be possible to detect this at compile-time and disable APNG support if libpng does not support it either?

FAILED: Lagom/Userland/Libraries/LibGfx/CMakeFiles/LibGfx.dir/ImageFormats/PNGLoader.cpp.o 
/usr/bin/c++ -DENABLE_COMPILETIME_FORMAT_CHECK -DLibGfx_EXPORTS -I/tmp/ladybird -I/tmp/ladybird/Userland/Services -I/tmp/ladybird/Userland/Libraries -I/tmp/ladybird/Build/ladybird/Lagom -I/tmp/ladybird/Build/ladybird/Lagom/Userland/Services -I/tmp/ladybird/Build/ladybird/Lagom/Userland/Libraries -I/tmp/ladybird/Meta/Lagom/../.. -I/tmp/ladybird/Meta/Lagom/../../Userland -I/tmp/ladybird/Meta/Lagom/../../Userland/Libraries -I/tmp/ladybird/Meta/Lagom/../../Userland/Services -I/tmp/ladybird/Build/ladybird -O2 -pipe -march=armv8-a+crc+crypto -mtune=cortex-a72.cortex-a53 -mabi=lp64 -fstack-protector-strong -mharden-sls=all -std=c++23 -fPIC -fdiagnostics-color=always -Wall -Wextra -fno-exceptions -ffp-contract=off -Wno-invalid-offsetof -Wno-unknown-warning-option -Wno-unused-command-line-argument -Werror -Wno-expansion-to-defined -Wno-literal-suffix -Wno-dangling-reference -fno-semantic-interposition -fvisibility-inlines-hidden -Wno-maybe-uninitialized -Wno-shorten-64-to-32 -fsigned-char -ggnu-pubnames -fPIC -D_FILE_OFFSET_BITS=64 -O2 -g1 -MD -MT Lagom/Userland/Libraries/LibGfx/CMakeFiles/LibGfx.dir/ImageFormats/PNGLoader.cpp.o -MF Lagom/Userland/Libraries/LibGfx/CMakeFiles/LibGfx.dir/ImageFormats/PNGLoader.cpp.o.d -o Lagom/Userland/Libraries/LibGfx/CMakeFiles/LibGfx.dir/ImageFormats/PNGLoader.cpp.o -c /tmp/ladybird/Userland/Libraries/LibGfx/ImageFormats/PNGLoader.cpp
/tmp/ladybird/Userland/Libraries/LibGfx/ImageFormats/PNGLoader.cpp: In function ‘AK::ErrorOr<AK::NonnullRefPtr<Gfx::Bitmap> > Gfx::render_animation_frame(const AnimationFrame&, const AnimationFrame&, const Bitmap&)’:
/tmp/ladybird/Userland/Libraries/LibGfx/ImageFormats/PNGLoader.cpp:210:10: error: ‘PNG_DISPOSE_OP_BACKGROUND’ was not declared in this scope
  210 |     case PNG_DISPOSE_OP_BACKGROUND:
      |          ^~~~~~~~~~~~~~~~~~~~~~~~~
/tmp/ladybird/Userland/Libraries/LibGfx/ImageFormats/PNGLoader.cpp:213:10: error: ‘PNG_DISPOSE_OP_PREVIOUS’ was not declared in this scope
  213 |     case PNG_DISPOSE_OP_PREVIOUS:
      |          ^~~~~~~~~~~~~~~~~~~~~~~
/tmp/ladybird/Userland/Libraries/LibGfx/ImageFormats/PNGLoader.cpp:220:10: error: ‘PNG_BLEND_OP_SOURCE’ was not declared in this scope
  220 |     case PNG_BLEND_OP_SOURCE:
      |          ^~~~~~~~~~~~~~~~~~~
/tmp/ladybird/Userland/Libraries/LibGfx/ImageFormats/PNGLoader.cpp:223:10: error: ‘PNG_BLEND_OP_OVER’ was not declared in this scope
  223 |     case PNG_BLEND_OP_OVER:
      |          ^~~~~~~~~~~~~~~~~
/tmp/ladybird/Userland/Libraries/LibGfx/ImageFormats/PNGLoader.cpp: In member function ‘AK::ErrorOr<long unsigned int, AK::Error> Gfx::PNGLoadingContext::read_frames(png_structp, png_infop)’:
/tmp/ladybird/Userland/Libraries/LibGfx/ImageFormats/PNGLoader.cpp:234:9: error: ‘png_get_acTL’ was not declared in this scope; did you mean ‘png_get_sCAL’?
  234 |     if (png_get_acTL(png_ptr, info_ptr, &frame_count, &loop_count)) {
      |         ^~~~~~~~~~~~
      |         png_get_sCAL
/tmp/ladybird/Userland/Libraries/LibGfx/ImageFormats/PNGLoader.cpp:237:9: error: ‘png_set_acTL’ was not declared in this scope; did you mean ‘png_set_sCAL’?
  237 |         png_set_acTL(png_ptr, info_ptr, frame_count, loop_count);
      |         ^~~~~~~~~~~~
      |         png_set_sCAL
/tmp/ladybird/Userland/Libraries/LibGfx/ImageFormats/PNGLoader.cpp:240:13: error: ‘png_read_frame_head’ was not declared in this scope
  240 |             png_read_frame_head(png_ptr, info_ptr);
      |             ^~~~~~~~~~~~~~~~~~~
/tmp/ladybird/Userland/Libraries/LibGfx/ImageFormats/PNGLoader.cpp:250:51: error: ‘PNG_INFO_fcTL’ was not declared in this scope; did you mean ‘PNG_INFO_pCAL’?
  250 |             if (!png_get_valid(png_ptr, info_ptr, PNG_INFO_fcTL)) {
      |                                                   ^~~~~~~~~~~~~
      |                                                   PNG_INFO_pCAL
/tmp/ladybird/Userland/Libraries/LibGfx/ImageFormats/PNGLoader.cpp:254:13: error: ‘png_get_next_frame_fcTL’ was not declared in this scope
  254 |             png_get_next_frame_fcTL(png_ptr, info_ptr, &width, &height, &x, &y, &delay_num, &delay_den, &dispose_op, &blend_op);
      |             ^~~~~~~~~~~~~~~~~~~~~~~