Temporary header file '/tmp/teidqlsjC1/dump1.h' with the following content will be compiled to create GCC translation unit dump:

  // add defines
  #define __STDC_VERSION__ 201710L
#define _GXX_NULLPTR_T
#define CLUTTER_ENABLE_COMPOSITOR_API 1
#define _REGEX_NELTS(n)
#define _Atomic
#define PACKED

  // add includes
  #include "/usr/include/cairo-dock/cairo-dock.h"
  #include "/usr/include/cairo-dock/gldit/cairo-dock-animations.h"
  #include "/usr/include/cairo-dock/gldit/cairo-dock-applet-canvas.h"
  #include "/usr/include/cairo-dock/gldit/cairo-dock-applet-facility.h"
  #include "/usr/include/cairo-dock/gldit/cairo-dock-applet-manager.h"
  #include "/usr/include/cairo-dock/gldit/cairo-dock-applet-multi-instance.h"
  #include "/usr/include/cairo-dock/gldit/cairo-dock-applet-single-instance.h"
  #include "/usr/include/cairo-dock/gldit/cairo-dock-application-facility.h"
  #include "/usr/include/cairo-dock/gldit/cairo-dock-applications-manager.h"
  #include "/usr/include/cairo-dock/gldit/cairo-dock-backends-manager.h"
  #include "/usr/include/cairo-dock/gldit/cairo-dock-class-icon-manager.h"
  #include "/usr/include/cairo-dock/gldit/cairo-dock-class-manager.h"
  #include "/usr/include/cairo-dock/gldit/cairo-dock-config.h"
  #include "/usr/include/cairo-dock/gldit/cairo-dock-container.h"
  #include "/usr/include/cairo-dock/gldit/cairo-dock-core.h"
  #include "/usr/include/cairo-dock/gldit/cairo-dock-data-renderer-manager.h"
  #include "/usr/include/cairo-dock/gldit/cairo-dock-data-renderer.h"
  #include "/usr/include/cairo-dock/gldit/cairo-dock-dbus.h"
  #include "/usr/include/cairo-dock/gldit/cairo-dock-desklet-factory.h"
  #include "/usr/include/cairo-dock/gldit/cairo-dock-desklet-manager.h"
  #include "/usr/include/cairo-dock/gldit/cairo-dock-desktop-manager.h"
  #include "/usr/include/cairo-dock/gldit/cairo-dock-dialog-factory.h"
  #include "/usr/include/cairo-dock/gldit/cairo-dock-dialog-manager.h"
  #include "/usr/include/cairo-dock/gldit/cairo-dock-dock-facility.h"
  #include "/usr/include/cairo-dock/gldit/cairo-dock-dock-factory.h"
  #include "/usr/include/cairo-dock/gldit/cairo-dock-dock-manager.h"
  #include "/usr/include/cairo-dock/gldit/cairo-dock-draw-opengl.h"
  #include "/usr/include/cairo-dock/gldit/cairo-dock-draw.h"
  #include "/usr/include/cairo-dock/gldit/cairo-dock-file-manager.h"
  #include "/usr/include/cairo-dock/gldit/cairo-dock-flying-container.h"
  #include "/usr/include/cairo-dock/gldit/cairo-dock-global-variables.h"
  #include "/usr/include/cairo-dock/gldit/cairo-dock-gui-factory.h"
  #include "/usr/include/cairo-dock/gldit/cairo-dock-gui-manager.h"
  #include "/usr/include/cairo-dock/gldit/cairo-dock-icon-facility.h"
  #include "/usr/include/cairo-dock/gldit/cairo-dock-icon-factory.h"
  #include "/usr/include/cairo-dock/gldit/cairo-dock-icon-manager.h"
  #include "/usr/include/cairo-dock/gldit/cairo-dock-image-buffer.h"
  #include "/usr/include/cairo-dock/gldit/cairo-dock-indicator-manager.h"
  #include "/usr/include/cairo-dock/gldit/cairo-dock-keybinder.h"
  #include "/usr/include/cairo-dock/gldit/cairo-dock-keyfile-utilities.h"
  #include "/usr/include/cairo-dock/gldit/cairo-dock-launcher-manager.h"
  #include "/usr/include/cairo-dock/gldit/cairo-dock-log.h"
  #include "/usr/include/cairo-dock/gldit/cairo-dock-manager.h"
  #include "/usr/include/cairo-dock/gldit/cairo-dock-menu.h"
  #include "/usr/include/cairo-dock/gldit/cairo-dock-module-instance-manager.h"
  #include "/usr/include/cairo-dock/gldit/cairo-dock-module-manager.h"
  #include "/usr/include/cairo-dock/gldit/cairo-dock-object.h"
  #include "/usr/include/cairo-dock/gldit/cairo-dock-opengl-font.h"
  #include "/usr/include/cairo-dock/gldit/cairo-dock-opengl-path.h"
  #include "/usr/include/cairo-dock/gldit/cairo-dock-opengl.h"
  #include "/usr/include/cairo-dock/gldit/cairo-dock-overlay.h"
  #include "/usr/include/cairo-dock/gldit/cairo-dock-packages.h"
  #include "/usr/include/cairo-dock/gldit/cairo-dock-particle-system.h"
  #include "/usr/include/cairo-dock/gldit/cairo-dock-separator-manager.h"
  #include "/usr/include/cairo-dock/gldit/cairo-dock-stack-icon-manager.h"
  #include "/usr/include/cairo-dock/gldit/cairo-dock-struct.h"
  #include "/usr/include/cairo-dock/gldit/cairo-dock-style-facility.h"
  #include "/usr/include/cairo-dock/gldit/cairo-dock-style-manager.h"
  #include "/usr/include/cairo-dock/gldit/cairo-dock-surface-factory.h"
  #include "/usr/include/cairo-dock/gldit/cairo-dock-task.h"
  #include "/usr/include/cairo-dock/gldit/cairo-dock-themes-manager.h"
  #include "/usr/include/cairo-dock/gldit/cairo-dock-user-icon-manager.h"
  #include "/usr/include/cairo-dock/gldit/cairo-dock-utils.h"
  #include "/usr/include/cairo-dock/gldit/cairo-dock-windows-manager.h"
  #include "/usr/include/cairo-dock/gldit/gldi-config.h"
  #include "/usr/include/cairo-dock/gldit/gldi-icon-names.h"
  #include "/usr/include/cairo-dock/implementations/cairo-dock-gauge.h"
  #include "/usr/include/cairo-dock/implementations/cairo-dock-graph.h"
  #include "/usr/include/cairo-dock/implementations/cairo-dock-progressbar.h"

The GCC parameters:
  gcc -fdump-lang-raw -fkeep-inline-functions -c -x c++ -fpermissive -w "/tmp/teidqlsjC1/dump1.h"  -I/usr/include/cairo-dock -I/usr/include/cairo-dock/gldit

In file included from /tmp/teidqlsjC1/dump1.h:11:
/usr/include/cairo-dock/cairo-dock.h:26:10: fatal error: GL/gl.h: No such file or directory
   26 | #include <GL/gl.h>
      |          ^~~~~~~~~
compilation terminated.

