I tried switching to the default wayland environment, enabling X use for just the necessary packages, and then starting empty tree compilation. The compile error is: x86_64-pc-linux-gnu-g++ -c -o coredll_gtk_bitmap.o -I/tmp/portage/x11-libs/wxGTK-3.2.5/work/wxWidgets-3.2.5-abi_x86_64.amd64/lib/wx/include/gtk3-unicode-3.2-gtk3 -I/tmp/portage/x11-libs/wxGTK-3.2.5/work/wxWidgets-3.2.5/include -D_FILE_OFFSET_BITS=64 -I/usr/include/gtk-3.0 -I/usr/include/pango-1.0 -I/usr/include/cairo -I/usr/include/gdk-pixbuf-2.0 -I/usr/include/atk-1.0 -I/usr/include/fribidi -I/usr/include/libpng16 -I/usr/include/pixman-1 -I/usr/include/harfbuzz -I/usr/include/freetype2 -I/usr/include/gio-unix-2.0 -I/usr/lib64/libffi/include -I/usr/include/libmount -I/usr/include/blkid -pthread -I/usr/include/glib-2.0 -I/usr/lib64/glib-2.0/include -D__WXGTK__ -DWXBUILDING -DWXUSINGDLL -DWXMAKINGDLL_CORE -DwxUSE_BASE=0 -fPIC -DPIC -pthread -Wall -Wundef -Wunused-parameter -Wno-ctor-dtor-privacy -Woverloaded-virtual -Wno-deprecated-declarations -I/usr/include/pango-1.0 -pthread -I/usr/include/libmount -I/usr/include/blkid -I/usr/include/fribidi -I/usr/include/cairo -I/usr/include/libpng16 -I/usr/include/pixman-1 -I/usr/include/harfbuzz -I/usr/include/freetype2 -I/usr/include/glib-2.0 -I/usr/lib64/glib-2.0/include -I/usr/lib64/libffi/include -I/usr/include/gdk-pixbuf-2.0 -I/usr/include/libpng16 -I/usr/lib64/libffi/include -pthread -I/usr/include/libmount -I/usr/include/blkid -I/usr/include/glib-2.0 -I/usr/lib64/glib-2.0/include -I/usr/include/gtk-3.0/unix-print -I/usr/include/gtk-3.0 -I/usr/include/pango-1.0 -I/usr/include/fribidi -I/usr/include/harfbuzz -I/usr/include/gio-unix-2.0 -I/usr/include/atk-1.0 -I/usr/include/cairo -I/usr/include/freetype2 -I/usr/include/pixman-1 -I/usr/include/gdk-pixbuf-2.0 -I/usr/include/libpng16 -I/usr/lib64/libffi/include -pthread -I/usr/include/glib-2.0 -I/usr/lib64/glib-2.0/include -I/usr/include/libmount -I/usr/include/blkid -I/usr/include/SDL2 -D_REENTRANT -I/usr/include/gspell-1 -I/usr/include/gtk-3.0 -I/usr/include/pango-1.0 -I/usr/include/cairo -I/usr/include/gdk-pixbuf-2.0 -I/usr/include/atk-1.0 -I/usr/include/fribidi -I/usr/include/libpng16 -I/usr/include/pixman-1 -I/usr/include/harfbuzz -I/usr/include/freetype2 -I/usr/include/gio-unix-2.0 -I/usr/lib64/libffi/include -I/usr/include/libmount -I/usr/include/blkid -I/usr/include/enchant-2 -pthread -I/usr/include/glib-2.0 -I/usr/lib64/glib-2.0/include -O2 -pipe -ggdb3 -fdiagnostics-color=always -frecord-gcc-switches -I/usr/include/gstreamer-1.0 -I/usr/lib64/libffi/include -pthread -I/usr/include/glib-2.0 -I/usr/lib64/glib-2.0/include -I/usr/include/orc-0.4 -fvisibility=hidden -fvisibility-inlines-hidden -O2 -pipe -ggdb3 -fdiagnostics-color=always -frecord-gcc-switches /tmp/portage/x11-libs/wxGTK-3.2.5/work/wxWidgets-3.2.5/src/gtk/bitmap.cpp /tmp/portage/x11-libs/wxGTK-3.2.5/work/wxWidgets-3.2.5/src/unix/uiactionx11.cpp:35:10: fatal error: gdk/gdkx.h: No such file or directory 35 | #include <gdk/gdkx.h> | ^~~~~~~~~~~~ Reproducible: Always
Created attachment 907694 [details] emerge --info
Created attachment 907695 [details] build.log
In case this helps, I worked around this issue by installing x11-libs/gtk+ with the X flag enabled.
