/usr/share/doc/fp-units-gtk2/2.6.4/examples/gtk2/gtkglext/Makefile.fpc is in fp-units-gtk2-2.6.4 2.6.4+dfsg-4.
This file is owned by root:root, with mode 0o644.
The actual contents of the file can be viewed below.
1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 | #
# Makefile.fpc for Free Pascal GTK 2.x.y Examples
#
[target]
programs=gears
[require]
packages=gtk2 opengl
[install]
fpcpackage=y
[default]
fpcdir=../../../..
[rules]
.NOTPARALLEL:
|