Hi Ned,

Please see the make logs for _tkinter below:

building '_tkinter' extension
gcc -pthread -fPIC -Wno-unused-result -Wsign-compare -DNDEBUG -g -fwrapv -O3 -Wall -Wstrict-prototypes -std=c99 -Wextra -Wno-unused-result -Wno-unused-parameter -Wno-missing-field-initializers -fprofile-generate -DWITH_APPINIT=1 -I./Include -I. -I/usr/include/x86_64-linux-gnu -I/usr/local/include -I/tools/src/Python-3.6.3/Include -I/tools/src/Python-3.6.3 -c /tools/src/Python-3.6.3/Modules/_tkinter.c -o build/temp.linux-x86_64-3.6/tools/src/Python-3.6.3/Modules/_tkinter.o -I/tools/apps/tcl/8.6.7/include -I/tools/apps/tk/8.6.7/include
gcc -pthread -fPIC -Wno-unused-result -Wsign-compare -DNDEBUG -g -fwrapv -O3 -Wall -Wstrict-prototypes -std=c99 -Wextra -Wno-unused-result -Wno-unused-parameter -Wno-missing-field-initializers -fprofile-generate -DWITH_APPINIT=1 -I./Include -I. -I/usr/include/x86_64-linux-gnu -I/usr/local/include -I/tools/src/Python-3.6.3/Include -I/tools/src/Python-3.6.3 -c /tools/src/Python-3.6.3/Modules/tkappinit.c -o build/temp.linux-x86_64-3.6/tools/src/Python-3.6.3/Modules/tkappinit.o -I/tools/apps/tcl/8.6.7/include -I/tools/apps/tk/8.6.7/include
gcc -pthread -shared -fprofile-generate -fprofile-generate build/temp.linux-x86_64-3.6/tools/src/Python-3.6.3/Modules/_tkinter.o build/temp.linux-x86_64-3.6/tools/src/Python-3.6.3/Modules/tkappinit.o -L. -L/usr/lib/x86_64-linux-gnu -L/usr/local/lib -lpython3.6m -o build/lib.linux-x86_64-3.6/_tkinter.cpython-36m-x86_64-linux-gnu.so -L/tools/apps/tcl/8.6.7/lib -L/tools/apps/tk/8.6.7/lib