### Description

"ims_registrar_scscf" cannot be compiled on Fedora 40 dist. ``` CC (gcc) [M ims_registrar_scscf.so] reply.o CC (gcc) [M ims_registrar_scscf.so] rerrno.o CC (gcc) [M ims_registrar_scscf.so] save.o CC (gcc) [M ims_registrar_scscf.so] server_assignment.o CC (gcc) [M ims_registrar_scscf.so] sip_msg.o CC (gcc) [M ims_registrar_scscf.so] stats.o CC (gcc) [M ims_registrar_scscf.so] userdata_parser.o userdata_parser.c: In function ‘ifc_tDefaultHandling2char’: userdata_parser.c:126:13: error: implicit declaration of function ‘strtol’; did you mean ‘strtok’? [-Wimplicit-function-declaration] 126 | r = strtol((char *)x, (char **)NULL, 10); | ^~~~~~ | strtok userdata_parser.c: In function ‘parse_spt_extension’: userdata_parser.c:411:32: error: implicit declaration of function ‘atoi’ [-Wimplicit-function-declaration] 411 | switch(atoi((char *)x)) { | ^~~~ make[2]: *** [../../Makefile.rules:100: userdata_parser.o] Error 1 make[1]: *** [Makefile:508: modules] Error 1 make[1]: Leaving directory '/root/rpmbuild/BUILD/kamailio-5.8.1/src' make: *** [Makefile:34: every-module] Error 2 error: Bad exit status from /var/tmp/rpm-tmp.tyeQgK (%build)

RPM build errors: Bad exit status from /var/tmp/rpm-tmp.tyeQgK (%build) ```

### Additional Information

* **Kamailio Version** - output of `kamailio -v`

``` used modified 5.8.1 version ```

* **Operating System**: ``` [root@sbc-stage-a0 SPECS]# cat /etc/os-release NAME="Fedora Linux" VERSION="40 (Container Image)" ID=fedora VERSION_ID=40 VERSION_CODENAME="" PLATFORM_ID="platform:f40" PRETTY_NAME="Fedora Linux 40 (Container Image)" ANSI_COLOR="0;38;2;60;110;180" LOGO=fedora-logo-icon CPE_NAME="cpe:/o:fedoraproject:fedora:40" DEFAULT_HOSTNAME="fedora" HOME_URL="https://fedoraproject.org/" DOCUMENTATION_URL="https://docs.fedoraproject.org/en-US/fedora/f40/system-administrators-guide/" SUPPORT_URL="https://ask.fedoraproject.org/" BUG_REPORT_URL="https://bugzilla.redhat.com/" REDHAT_BUGZILLA_PRODUCT="Fedora" REDHAT_BUGZILLA_PRODUCT_VERSION=40 REDHAT_SUPPORT_PRODUCT="Fedora" REDHAT_SUPPORT_PRODUCT_VERSION=40 SUPPORT_END=2025-05-13 VARIANT="Container Image" VARIANT_ID=container ```