While trying to remove the last port depending on TK 8.4/TCL 8.4, it fails to build when only TK 8.5/TCL 8.5 is installed.

The ports ${WRKSRC}/Makefile.config{,.freebsd} has hard coded the locations of the TK 8.4/TCL 8.4 libs and include directories.

The ${WRKSRC}/Togl/src/Togl/togl.c file fails to include the appropriate tkInt*.h, due to it only checks for TK versions up to 8.4.

Fix: The attached patch replaces the TK/TCL libs and include directories, as well as fixing the include for tkInt8.4.h in Togl/src/Togl/togl.c.

Patch attached with submission follows:
How-To-Repeat: Uninstall tk8.4 and tcl8.4, and then install tk8.5 and tcl8.5
cd /usr/ports/graphics/ocaml-lablgl
make build

gmake[1]: Entering directory `/usr/ports/graphics/ocaml-lablgl/work/lablgl-1.03/Togl/src'
ocamlrun ../../src/var2def < togl_tags.var > togl_tags.h
ocamlrun ../../src/var2switch TOGL_ < togl_tags.var > togl_tags.c
ocamlc -c -w s -ccopt "-c -O2 -pipe -fno-strict-aliasing -I../../src -ITogl -I/usr/local/include/tcl8.4 -I/usr/local/include/tk8.4 -I.  -I/usr/local/include" ml_togl.c
ml_togl.c:12:17: error: tcl.h: No such file or directory
ml_togl.c:13:16: error: tk.h: No such file or directory
In file included from ml_togl.c:19:
Togl/togl.h:146: error: expected ')' before '*' token
Togl/togl.h:184: error: expected ')' before '*' token
Togl/togl.h:207: error: expected '=', ',', ';', 'asm' or '__attribute__' before '*' token
Togl/togl.h:209: error: expected '=', ',', ';', 'asm' or '__attribute__' before 'Togl_TkWin'
Togl/togl.h:266: error: expected ')' before 'clientData'
Togl/togl.h:268: error: expected '=', ',', ';', 'asm' or '__attribute__' before 'Togl_GetClientData'
Togl/togl.h:270: error: expected declaration specifiers or '...' before 'ClientData'
ml_togl.c: In function 'ml_Togl_Init':
ml_togl.c:47: error: 'Tcl_Interp' undeclared (first use in this function)
ml_togl.c:47: error: (Each undeclared identifier is reported only once
ml_togl.c:47: error: for each function it appears in.)
ml_togl.c:47: error: 'cltclinterp' undeclared (first use in this function)
ml_togl.c:48: error: expected expression before ')' token
ml_togl.c:49: warning: implicit declaration of function 'Togl_Init'
ml_togl.c:49: error: 'TCL_ERROR' undeclared (first use in this function)
ml_togl.c: In function 'ml_Togl_DumpToEpsFile':
ml_togl.c:146: error: 'TCL_ERROR' undeclared (first use in this function)
gmake[1]: *** [ml_togl.o] Error 2
gmake[1]: Leaving directory `/usr/ports/graphics/ocaml-lablgl/work/lablgl-1.03/Togl/src'
gmake: *** [togl] Error 2
*** Error code 2