profiles/arch/hppa: mask dev-lang/python:3.14 and friends

I've copied what we do for m68k. Note I've preemptively done the default
reversal too just to avoid us forgetting about that but hopefully it will
be long fixed by that point.

Bug: https://bugs.gentoo.org/959416
Signed-off-by: Sam James <sam@gentoo.org>

profiles/arch/hppa/make.defaults

@@ -22,3 +22,10 @@ CHOST_hppa="${CHOST}"
 # Donnie Berkholz <dberkholz@gentoo.org> (2006-08-18)
 # Defaults for video drivers
 VIDEO_CARDS="fbdev"
+
+# Sam James <sam@gentoo.org> (2025-11-05)
+# Since Python 3.14 is masked on HPPA, we need to re-enable Python 3.13
+# and explicitly disable 3.14. See bug #959416.
+PYTHON_SINGLE_TARGET="python3_13 -python3_14 -python3_14t"
+PYTHON_TARGETS="python3_13 -python3_14 -python3_14t"
+BOOTSTRAP_USE="unicode pkg-config split-usr xml python_targets_python3_13 python_single_target_python3_13"

profiles/arch/hppa/package.mask

@@ -1,6 +1,11 @@
 # Copyright 2019-2025 Gentoo Authors
 # Distributed under the terms of the GNU General Public License v2
 
+# Sam James <sam@gentoo.org> (2025-11-05)
+# Fails to build on HPPA (stack size calculation goes wrong), bug #959416.
+dev-lang/python:3.14
+dev-lang/python:3.14t
+
 # Sam James <sam@gentoo.org> (2025-03-24)
 # Affected by a data corruption bug on HPPA
 # https://lore.kernel.org/linux-parisc/84d7b3e1053b2a8397bcc7fc8eee8106@matoro.tk/

profiles/arch/hppa/use.mask

@@ -7,6 +7,11 @@
 # NOTE: When masking a USE flag due to missing keywords, please file a keyword
 # request bug for the hppa arch.
 
+# Sam James <sam@gentoo.org> (2025-11-05)
+# Fails to build on HPPA (stack size calculation goes wrong), bug #959416.
+python_targets_python3_14
+python_targets_python3_14t
+
 # Andreas Sturmlechner <asturm@gentoo.org> (2025-06-12)
 # x11-drivers/xf86-input-wacom is not keyworded here
 input_devices_wacom