Dear Maintainer,
The cctools package FTBFS with swig 4.5.0, which is currently in unstable. An excerpt of the build log is shown below.
This is due to the removal of the Python 2 compatibility macros in version 4.5.0. According to the SWIG authors, these macros were retained in the generated code (pyhead.swg) solely for user typemaps. Any typemap using these macros must be updated to call the Python 3 C API directly.
Best,
Rafael Laboissière
##### Build log excerpt
SWIG chirp.i (python)
gcc -o chirp_wrap.o -c -DCCTOOLS_WITH_CHIRP -I <<BUILD-DIR>>/cctools-7.15.9/dttools/src -I <<BUILD-DIR>>/cctools-7.15.9/batch_job/src -I <<BUILD-DIR>>/cctools-7.15.9/taskvine/src -I <<BUILD-DIR>>/cctools-7.15.9/
grow/src -I <<BUILD-DIR>>/cctools-7.15.9/makeflow/src -I <<BUILD-DIR>>/cctools-7.15.9/work_queue/src -I <<BUILD-DIR>>/cctools-7.15.9/ftp_lite/src -I <<BUILD-DIR>>/cctools-7.15.9/resource_monitor/src -I <<BUILD-D
IR>>/cctools-7.15.9/chirp/src -I <<BUILD-DIR>>/cctools-7.15.9/deltadb/src -I <<BUILD-DIR>>/cctools-7.15.9/poncho/src -I <<BUILD-DIR>>/cctools-7.15.9/taskvine/src/manager -g -O2 -Werror=implicit-function-declarat
ion -ffile-prefix-map=<<BUILD-DIR>>/cctools-7.15.9=. -fstack-protector-strong -fstack-clash-protection -Wformat -Werror=format-security -fcf-protection -I /usr/include/python3.14 -DNDEBUG -Wno-unused-result -D_
_EXTENSIONS__ -D_LARGEFILE64_SOURCE -D__LARGE64_FILES -Wall -Wextra -Wno-unused-result -fPIC -Wno-unused-parameter -Wno-unknown-pragmas -Wno-deprecated-declarations -Wno-unused-const-variable -DHAS_LIBREADLINE -
DHAS_TLS_method -DHAS_OPENSSL -DHAS_OPENSSL_PKEYUTL -DHAS_PPOLL -DHAVE_GMTIME_R -DHAVE_FDATASYNC -DHAS_ISNAN -DHAVE_ISNAN -DSQLITE_HAVE_ISNAN -DHAVE_LOCALTIME_R -DHAS_OPENAT -DHAS_PREAD -DUSE_PREAD -DUSE_PREAD64
-DHAS_PWRITE -DUSE_PWRITE -DUSE_PWRITE64 -DHAS_STATX -DHAVE_STRCHRNUL -DHAS_STRSIGNAL -DHAS_USLEEP -DHAVE_USLEEP -DHAS_UTIME -DHAVE_UTIME -DHAS_UTIMENSAT -DHAS_SYS_XATTR_H -DHAS_IFADDRS -DHAS_INTTYPES_H -DHAVE_
INTTYPES_H -DHAS_STDINT_H -DHAVE_STDINT_H -DHAS_SYS_STATFS_H -DHAS_SYS_STATVFS_H -DHAS_SYS_VFS_H -DBUILD_DATE='"2018-12-25"' -DBUILD_HOST='"debian"' -DBUILD_USER='"debian"' -DCCTOOLS_COMMIT='""' -DCCTOOLS_CONFIG
URE_ARGUMENTS='"--with-globus-path=/usr --prefix=/usr --with-golang-path=/usr --with-krb5-path=/usr --with-readline-path=/usr --with-mpi-path=/usr --with-fuse-path=/usr --with-zlib-path=/usr --with-python3-path
/usr/bin/python3 --with-python2-path no --without-system-parrot --build-date Fri May 22 10:24:16 UTC 2026"' -DCCTOOLS_CPU_AMD64 -DCCTOOLS_CVMFS_BUILD_FLAGS='" "' -DCCTOOLS_OPSYS_LINUX -DCCTOOLS_RELEASE_DATE='"Fr
i May 22 10:24:16 UTC 2026"' -DCCTOOLS_SOURCE='"FINAL"' -DCCTOOLS_SYSTEM_INFORMATION='"Debian build of cctools"' -DCCTOOLS_VERSION='"7.15.9 FINAL"' -DCCTOOLS_VERSION_MAJOR=7 -DCCTOOLS_VERSION_MICRO=9 -DCCTOOLS_V
ERSION_MINOR=15 -DINSTALL_PATH='"/usr"' -D_GNU_SOURCE -D_REENTRANT -g3 -O0 -ggdb3 -std=c99 -fPIC -w -DNDEBUG -DNDEBUG -I/usr/include/python3.14 -IObjects -IInclude -IPython -I. -I../Include chirp_wrap.c
chirp_wrap.c: In function ‘_wrap_chirp_reli_open’:
chirp_wrap.c:4569:14: error: implicit declaration of function ‘PyInt_Check’; did you mean ‘PySet_Check’? [-Wimplicit-function-declaration]
4569 | else if (PyInt_Check(swig_obj[4]))
| ^~~~~~~~~~~
| PySet_Check
chirp_wrap.c:4570:21: error: implicit declaration of function ‘PyInt_AsLong’; did you mean ‘PyLong_AsLong’? [-Wimplicit-function-declaration]
4570 | arg5 = (time_t) PyInt_AsLong(swig_obj[4]);
| ^~~~~~~~~~~~
| PyLong_AsLong
make[5]: *** [<<BUILD-DIR>>/cctools-7.15.9/rules.mk:6: chirp_wrap.o] Error 1