Re: LO 24.2 C++20 baseline

Andreas Mantke <maand@xxxxxx> · Fri, 22 Sep 2023 22:09:17 +0200

    Hi Christian,

    Am 22.09.23 um 21:25 schrieb Christian
      Lohmaier:

      Hi Andreas,

On Fri, Sep 22, 2023 at 9:31 PM Andreas Mantke <maand@xxxxxx> wrote:

        You can upgrade to Leap 15.5 and compiling should work again:
https://build.opensuse.org/package/show/openSUSE:Leap:15.5:Update/gcc12

unfortunately the upgrade didn't fix the issue. I got this lines at the end of the autogen.sh run:

checking what the C++ library is... GNU libstdc++
checking for gperf... /usr/bin/gperf
checking whether gperf is new enough... yes (3.1)
checking which libcmis to use... internal
checking whether ccache g++ supports C++20... configure: error: no
Error running configure at ./autogen.sh line 321.

      Did you make sure g++ without any setup is pointing to the new gcc
version? maybe you need to add its path in front of your existing PATH
env-var or you have to use update-alternatives or similar.

You can also look in config.log for more details as to why it fails

    I tried with:

      export CC=/usr/bin/gcc-12
    and again in a new virtual terminal with:

      export CC=/usr/bin/gcc-11
    and it uses the compiler from the export, but the error stays the
      same:
    checking for
          sys/sdt.h... no

        checking whether ccache gcc-11 supports
        -fstack-clash-protection... yes

        checking whether ccache gcc-11 supports -mno-avx... yes

        checking whether ccache gcc-11 supports atomic functions... yes

        checking whether ccache g++ defines __base_class_type_info in
        cxxabi.h... yes

        checking whether ccache g++ defines __class_type_info in
        cxxabi.h... yes

        checking whether ccache g++ declares __cxa_allocate_exception in
        cxxabi.h... yes

        checking whether ccache g++ defines __cxa_eh_globals in
        cxxabi.h... no

        checking whether ccache g++ defines __cxa_exception in
        cxxabi.h... no

        checking whether ccache g++ declares __cxa_get_globals in
        cxxabi.h... yes

        checking whether ccache g++ declares
        __cxa_current_exception_type in cxxabi.h... yes

        checking whether ccache g++ declares __cxa_throw in cxxabi.h...
        yes

        checking whether ccache g++ defines __si_class_type_info in
        cxxabi.h... yes

        checking whether ccache g++ defines __vmi_class_type_info in
        cxxabi.h... yes

        checking what the C++ library is... GNU libstdc++

        checking for gperf... /usr/bin/gperf

        checking whether gperf is new enough... yes (3.1)

        checking which libcmis to use... internal

        checking whether ccache g++ supports C++20... configure: error:
        no

        Error running configure at ./autogen.sh line 32
    Regards,

        Andreas

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