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Subject: [Bug target/91602] GCC fails to build for riscv in a combined tree
 due to misconfigured leb128 support
Date: Fri, 20 Aug 2021 21:29:27 +0000
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https://gcc.gnu.org/bugzilla/show_bug.cgi?id=3D91602

--- Comment #16 from CVS Commits <cvs-commit at gcc dot gnu.org> ---
The master branch has been updated by Sergey Belyshev <ssb@gcc.gnu.org>:

https://gcc.gnu.org/g:7cad8a8f9f7bfa8e98f6a0615541f589fd1d3fc1

commit r12-3047-g7cad8a8f9f7bfa8e98f6a0615541f589fd1d3fc1
Author: Serge Belyshev <belyshev@depni.sinp.msu.ru>
Date:   Fri Jul 16 10:52:33 2021 +0300

    configure: drop version checks for in-tree gas [PR91602]

    Special-casing checks for in-tree gas features is unnecessary since
    r100007 which made configure-gcc depend on all-gas, and thus making
    alternate code path in gcc_GAS_CHECK_FEATURE for in-tree gas
    redundant.

    Along the way this fixes PR 91602, which is caused by incorrect guess
    of leb128 support presence in RISC-V.

    First patch removes alternate code path in gcc_GAS_CHECK_FEATURE and
    related code, the rest are further cleanups.  Patches 2 and 3 in
    series make no functional changes, thus configure is unchanged.

    gcc/ChangeLog:

            PR target/91602
            * acinclude.m4 (_gcc_COMPUTE_GAS_VERSION,
_gcc_GAS_VERSION_GTE_IFELSE)
            (gcc_GAS_VERSION_GTE_IFELSE): Remove.
            (gcc_GAS_CHECK_FEATURE): Do not handle in-tree case specially.
            * configure.ac: Remove gcc_cv_gas_major_version,
gcc_cv_gas_minor_version.
            Remove remaining checks for in-tree assembler.
            * configure: Regenerate.=