Bug#1102196: boost1.88 unknown architectures

Package: src:boost1.88
Version: 1.88.0~beta1-1~exp1
Severity: important
X-Debbugs-CC: [email protected]

these are seen on different architectures in the configure step on at 
least alpha, hppa, m68k, sh4.

[...]
     - BOOST_ARCH_WORD_BITS == 0.0.16 : no [8]
     - BOOST_ARCH_WORD_BITS == 0.0.32 : yes [8]
     - BOOST_ARCH_WORD_BITS == 0.0.64 : no [8]
     - BOOST_ARCH_X86           : no [8]
     - BOOST_ARCH_IA64          : no [8]
     - BOOST_ARCH_SPARC         : no [8]
     - BOOST_ARCH_LOONGARCH     : no [8]
     - BOOST_ARCH_MIPS          : no [8]
     - BOOST_ARCH_PARISC        : yes [8]
     - BOOST_ARCH_ARM           : no [8]
     - BOOST_ARCH_RISCV         : no [8]
     - BOOST_ARCH_PPC           : no [8]
     - BOOST_ARCH_SYS390        : no [8]
     - BOOST_ARCH_WORD_BITS == 0.0.16 : no [9]
     - BOOST_ARCH_WORD_BITS == 0.0.32 : yes [9]
     - BOOST_ARCH_WORD_BITS == 0.0.64 : no [9]
     - BOOST_ARCH_X86           : no [9]
     - BOOST_ARCH_IA64          : no [9]
     - BOOST_ARCH_SPARC         : no [9]
     - BOOST_ARCH_LOONGARCH     : no [9]
     - BOOST_ARCH_MIPS          : no [9]
     - BOOST_ARCH_PARISC        : yes [9]
     - BOOST_ARCH_ARM           : no [9]
     - BOOST_ARCH_RISCV         : no [9]
     - BOOST_ARCH_PPC           : no [9]
     - BOOST_ARCH_SYS390        : no [9]
error: No best alternative for 
/build/reproducible-path/boost1.88-1.88.0~beta1/libs/context/build/asm_sources 
with <abi>sysv <address-model>32 <architecture>parisc 
<asynch-exceptions>off <binary-format>elf 
<boost.beast.allow-deprecated>on <boost.beast.separate-compilation>on 
<boost.cobalt.executor>any_io_executor <boost.cobalt.pmr>std 
<boost.process.fs>boost <context-impl>fcontext <coverage>off 
<debug-symbols>on <exception-handling>on <extern-c-nothrow>off 
<inlining>full <known-warnings>hide <link>static <optimization>speed 
<os>LINUX <pch>on <preserve-test-targets>on <profiling>off 
<python-debugging>off <relevant>abi <relevant>address-model 
<relevant>architecture <relevant>binary-format <relevant>toolset 
<rtti>on <runtime-debugging>off <runtime-link>shared <stdlib>native 
<strip>off <target-os>linux <testing.execute>on <threadapi>pthread 
<threading>multi <toolset-gcc:version>14 <toolset>gcc <variant>release 
<vectorize>off <visibility>hidden <warnings-as-errors>off <warnings>on