This file is indexed.

/usr/share/doc/tcl8.5-dev/README.TCL_INC is in tcl8.5-dev 8.5.15-2ubuntu1.

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
Packages which used to use the debian-specific hack TCL_INC_DIR from
tclConfig.sh to find the tcl (or tk) headers should be modified to use
the new patented upstream TCL_INCLUDE_SPEC variable instead.

TCL_INCLUDE_SPEC is a little different than TCL_INC_DIR -- it includes
a "-I" in front of the path, so if you were using "-I$TCL_INC_DIR",
you should change it to just "$TCL_INCLUDE_SPEC".  If you were doing
something with TCL_INC_DIR that isn't compatible with have "-I" at the
front, LET US KNOW!

TCL_INC_DIR is removed from tcl8.5. So, anything still using TCL_INC_DIR
will *break* if you want to build it with Tcl/Tk 8.5!
If you have a problem with that, LET US KNOW, as soon as possible!

cheers
Chris Waters, 8 Dec 2002, Sergei Golovan, 28 Sep 2007