On Ubuntu 26.04, compiling dahdi-linux from its master branch fails

[rodolfojcj]

Attempting to compile dahdi-linux from its master branch (Git commit d1c842a) on Ubuntu 26.04 fails.

The resulting error output is like this:

2026-04-06 15:15:40 (494 KB/s) - ‘dahdi-fwload-vpmadt032-1.25.0.tar.gz’ saved [149360/149360]

make[1]: Leaving directory '/usr/src/dahdi-linux-master/drivers/dahdi/firmware'
make -C /lib/modules/7.0.0-10-generic/build M=/usr/src/dahdi-linux-master/drivers/dahdi DAHDI_INCLUDE=/usr/src/dahdi-linux-master/include DAHDI_MODULES_EXTRA=" " HOTPLUG_FIRMWARE=yes modules DAHDI_BUILD_ALL=m
make[1]: Entering directory '/usr/src/linux-headers-7.0.0-10-generic'
make[2]: Entering directory '/usr/src/dahdi-linux-master/drivers/dahdi'
warning: the compiler differs from the one used to build the kernel
  The kernel was built by: x86_64-linux-gnu-gcc (Ubuntu 15.2.0-15ubuntu2) 15.2.0
  You are using:           gcc (Ubuntu 15.2.0-16ubuntu1) 15.2.0
warning: pahole version differs from the one used to build the kernel
  The kernel was built with: 131
  You are using:             0
  CC [M]  dahdi-base.o
  CC [M]  dahdi-sysfs.o
dahdi-sysfs.c:45:127: error: missing binary operator before token ‘(’
   45 | #if LINUX_VERSION_CODE >= KERNEL_VERSION(6, 11, 0) ||(defined(RHEL_RELEASE_CODE) && (RHEL_RELEASE_CODE >= RHEL_RELEASE_VERSION(9, 8)))
      |                                                                                                                               ^
dahdi-sysfs.c:287:27: error: initialization of ‘int (*)(struct device *, const struct device_driver *)’ from incompatible pointer type ‘int (*)(struct device *, struct device_driver *)’ [-Wincompatible-pointer-types]
  287 |         .match          = span_match,
      |                           ^~~~~~~~~~
dahdi-sysfs.c:287:27: note: (near initialization for ‘spans_bus_type.match’)
dahdi-sysfs.c:48:12: note: ‘span_match’ declared here
   48 | static int span_match(struct device *dev, struct device_driver *driver)
      |            ^~~~~~~~~~
make[4]: *** [/usr/src/linux-headers-7.0.0-10-generic/scripts/Makefile.build:289: dahdi-sysfs.o] Error 1
make[3]: *** [/usr/src/linux-headers-7.0.0-10-generic/Makefile:2110: .] Error 2
make[2]: *** [/usr/src/linux-headers-7.0.0-10-generic/Makefile:248: __sub-make] Error 2
make[2]: Leaving directory '/usr/src/dahdi-linux-master/drivers/dahdi'
make[1]: *** [Makefile:248: __sub-make] Error 2
make[1]: Leaving directory '/usr/src/linux-headers-7.0.0-10-generic'
make: *** [Makefile:74: modules] Error 2

Running Linux kernel is 7.0.0-10-generic #10-Ubuntu SMP PREEMPT_DYNAMIC Thu Mar 19 10:24:42 UTC 2026 x86_64 GNU/Linux.

gcc version is (Ubuntu 15.2.0-16ubuntu1) 15.2.0.

Ubuntu version is 26.04 (Resolute Raccoon).

Could you please take a look and try to find a fix for that?

Thank you.

[InterLinked1]

I think this issue is already fixed in PhreakScript, Ubuntu 26.04 builds just fine for me there: https://github.com/InterLinked1/phreakscript/actions/runs/24141555863/job/70464882913