Compilation Error: _tkinter.c incompatible pointer types with Tcl 9.0 (LoongArch64) #948
Description
Building CPython 3.10 on loongarch64-linux-gnu fails during the compilation of Modules/_tkinter.c. The error is caused by a type mismatch between int * and Tcl_Size * (which is long int * on this architecture) when calling Tcl API functions.
- https://github.com/loong64/python-build-standalone/actions/runs/20979114772/job/60300211568
- https://github.com/loong64/python-build-standalone/actions/runs/20979114772/job/60300211553
- https://github.com/loong64/python-build-standalone/actions/runs/20979114772/job/60300211550
cpython-3.10> sed -e "s,@EXENAME@,/install/bin/python3.10d," < ./Misc/python-config.in >python-config.py
cpython-3.10> LC_ALL=C sed -e 's,\$(\([A-Za-z0-9_]*\)),\$\{\1\},g' < Misc/python-config.sh >python-config
cpython-3.10> /usr/bin/loongarch64-linux-gnu-gcc -pthread -shared -L/tools/deps/lib -Wl,--exclude-libs,ALL Modules/_cryptmodule.o -lcrypt -o Modules/_crypt.cpython-310d-loongarch64-linux-gnu.so
cpython-3.10> ./Modules/_tkinter.c:136:1: warning: function declaration isn't a prototype [-Wstrict-prototypes]
cpython-3.10> 136 | _get_tcl_lib_path()
cpython-3.10> | ^~~~~~~~~~~~~~~~~
cpython-3.10> ./Modules/_tkinter.c: In function 'Split':
cpython-3.10> ./Modules/_tkinter.c:559:49: error: passing argument 3 of 'Tcl_SplitList' from incompatible pointer type [-Wincompatible-pointer-types]
cpython-3.10> 559 | if (Tcl_SplitList((Tcl_Interp *)NULL, list, &argc, &argv) != TCL_OK) {
cpython-3.10> | ^~~~~
cpython-3.10> | |
cpython-3.10> | int *
cpython-3.10> In file included from /tools/deps/include/tcl.h:2431,
cpython-3.10> from ./Modules/_tkinter.c:45:
cpython-3.10> /tools/deps/include/tclDecls.h:1799:64: note: expected 'Tcl_Size *' {aka 'long int *'} but argument is of type 'int *'
cpython-3.10> 1799 | const char *listStr, Tcl_Size *argcPtr,
cpython-3.10> | ~~~~~~~~~~^~~~~~~
cpython-3.10> ./Modules/_tkinter.c: In function 'SplitObj':
cpython-3.10> ./Modules/_tkinter.c:658:53: error: passing argument 3 of 'Tcl_SplitList' from incompatible pointer type [-Wincompatible-pointer-types]
cpython-3.10> 658 | Tcl_SplitList((Tcl_Interp *)NULL, list, &argc, &argv) != TCL_OK) {
cpython-3.10> | ^~~~~
cpython-3.10> | |
cpython-3.10> | int *
cpython-3.10> /tools/deps/include/tclDecls.h:1799:64: note: expected 'Tcl_Size *' {aka 'long int *'} but argument is of type 'int *'
cpython-3.10> 1799 | const char *listStr, Tcl_Size *argcPtr,
cpython-3.10> | ~~~~~~~~~~^~~~~~~
cpython-3.10> ./Modules/_tkinter.c:672:61: error: passing argument 3 of 'Tcl_SplitList' from incompatible pointer type [-Wincompatible-pointer-types]
cpython-3.10> 672 | if (Tcl_SplitList((Tcl_Interp *)NULL, (char *)list, &argc, &argv) != TCL_OK) {
cpython-3.10> | ^~~~~
cpython-3.10> | |
cpython-3.10> | int *
cpython-3.10> /tools/deps/include/tclDecls.h:1799:64: note: expected 'Tcl_Size *' {aka 'long int *'} but argument is of type 'int *'
cpython-3.10> 1799 | const char *listStr, Tcl_Size *argcPtr,
cpython-3.10> | ~~~~~~~~~~^~~~~~~
cpython-3.10> /usr/bin/loongarch64-linux-gnu-gcc -pthread -shared -L/tools/deps/lib -Wl,--exclude-libs,ALL Modules/_ctypes_test.o -lm -o Modules/_ctypes_test.cpython-310d-loongarch64-linux-gnu.so
cpython-3.10> ./Modules/_tkinter.c: In function '_tkinter_tkapp_split':
cpython-3.10> ./Modules/_tkinter.c:2458:36: error: passing argument 3 of 'Tcl_ListObjGetElements' from incompatible pointer type [-Wincompatible-pointer-types]
cpython-3.10> 2458 | &objc, &objv) == TCL_ERROR) {
cpython-3.10> | ^~~~~
cpython-3.10> | |
cpython-3.10> | int *
cpython-3.10> /tools/deps/include/tclDecls.h:1789:61: note: expected 'Tcl_Size *' {aka 'long int *'} but argument is of type 'int *'
cpython-3.10> 1789 | Tcl_Obj *listPtr, Tcl_Size *objcPtr,
cpython-3.10> | ~~~~~~~~~~^~~~~~~
cpython-3.10> ./Modules/_tkinter.c: In function 'PyInit__tkinter':
cpython-3.10> ./Modules/_tkinter.c:3728:26: warning: assignment discards 'const' qualifier from pointer target type [-Wdiscarded-qualifiers]
cpython-3.10> 3728 | path = PyUnicode_AsUTF8(str_path);
cpython-3.10> | ^
cpython-3.10> /usr/bin/loongarch64-linux-gnu-gcc -pthread -shared -L/tools/deps/lib -Wl,--exclude-libs,ALL Modules/_dbmmodule.o -ldb -o Modules/_dbm.cpython-310d-loongarch64-linux-gnu.so
cpython-3.10> make: *** [Makefile:2077: Modules/_tkinter.o] Error 1
cpython-3.10> make: *** Waiting for unfinished jobs....
Traceback (most recent call last):
File "/home/runner/work/python-build-standalone/python-build-standalone/cpython-unix/build.py", line 1295, in <module>
sys.exit(main())
~~~~^^
File "/home/runner/work/python-build-standalone/python-build-standalone/cpython-unix/build.py", line 1277, in main
build_cpython(
~~~~~~~~~~~~~^
settings,
^^^^^^^^^
...<7 lines>...
python_source=python_source,
^^^^^^^^^^^^^^^^^^^^^^^^^^^^
)
^
File "/home/runner/work/python-build-standalone/python-build-standalone/cpython-unix/build.py", line 839, in build_cpython
build_env.run("build-cpython.sh", environment=env)
~~~~~~~~~~~~~^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
File "/home/runner/work/python-build-standalone/python-build-standalone/pythonbuild/buildenv.py", line 98, in run
container_exec(self.container, program, user=user, environment=environment)
~~~~~~~~~~~~~~^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
File "/home/runner/work/python-build-standalone/python-build-standalone/pythonbuild/docker.py", line 150, in container_exec
raise Exception("exit code %d from %s" % (inspect_res["ExitCode"], command))
Exception: exit code 2 from /build/build-cpython.sh
make: *** [Makefile:289: /home/runner/work/python-build-standalone/python-build-standalone/build/cpython-3.10.19-loongarch64-unknown-linux-gnu-debug.tar] Error 1