Updated my git repo and set the branch to Version_2_6_14pre5. Did a make clean then ran 'configure --prefix=$HOME/dev --enable-ansi" and finally make.
I get many errors now. Here's the first few: gcc -c -fsigned-char -pipe -fcommon -fno-builtin-malloc -fno-builtin-free -fno-PIE -fno-pie -fno-PIC -fno-pic -Wall -Wno-empty-body -Wno-unused-but-set-variable -O3 -fomit-frame-pointer -I/home/toy/src/savannah/gcl/gcl/o -I../h -I../gcl-tk main.c main.c: In function ‘fSdisassemble_instruction’: main.c:1292:10: error: unknown type name ‘disassemble_info’ 1292 | static disassemble_info i; | ^~~~~~~~~~~~~~~~ main.c:1297:3: error: ‘bp’ undeclared (first use in this function) 1297 | bp=b; | ^~ main.c:1297:3: note: each undeclared identifier is reported only once for each function it appears in main.c:1297:6: error: ‘b’ undeclared (first use in this function) 1297 | bp=b; | ^ main.c:1301:21: error: ‘fprintf_ftype’ undeclared (first use in this function) 1301 | s(&i, stdout,(fprintf_ftype) my_fprintf,my_fprintf_styled); -- Ray