[Bug build/27477] New: /lib64/libc.so.6: version `GLIBC_2.34' not found

[Bug build/27477] New: /lib64/libc.so.6: version `GLIBC_2.34' not found

[hjl.tools at gmail dot com]

https://sourceware.org/bugzilla/show_bug.cgi?id=27477

            Bug ID: 27477
           Summary: /lib64/libc.so.6: version `GLIBC_2.34' not found
           Product: glibc
           Version: 2.34
            Status: NEW
          Severity: normal
          Priority: P2
         Component: build
          Assignee: unassigned at sourceware dot org
          Reporter: hjl.tools at gmail dot com
                CC: carlos at redhat dot com, fweimer at redhat dot com
  Target Milestone: ---

commit 035c012e32c11e84d64905efaf55e74f704d3668
Author: Florian Weimer <fweimer@redhat.com>
Date:   Thu Feb 25 12:10:57 2021 +0100

    Reduce the statically linked startup code [BZ #23323]

triggered:

make[2]: Entering directory '/export/gnu/import/git/gitlab/x86-glibc/iconv'
../scripts/merge-test-results.sh -s
/export/build/gnu/tools-build/glibc-cet-gitlab/build-x86_64-linux/iconv/ iconv
\
  check-installed-headers-c check-installed-headers-cxx
check-obsolete-constructs check-wrapper-headers tst-gconv-init-failure
tst-iconv-mt tst-iconv-opt tst-iconv1 tst-iconv2 tst-iconv3 tst-iconv4
tst-iconv5 tst-iconv6 tst-iconv7 tst-iconv8 tst-iconv_prog \
  >
/export/build/gnu/tools-build/glibc-cet-gitlab/build-x86_64-linux/iconv/subdir-tests.sum
(set -e; \

tmp=/export/build/gnu/tools-build/glibc-cet-gitlab/build-x86_64-linux/iconv/gconv-modules.cache.$$;
\
 rm -f $tmp; \
   env
GCONV_PATH=/export/build/gnu/tools-build/glibc-cet-gitlab/build-x86_64-linux/iconvdata
LOCPATH=/export/build/gnu/tools-build/glibc-cet-gitlab/build-x86_64-linux/localedata
LC_ALL=C 
/export/build/gnu/tools-build/glibc-cet-gitlab/build-x86_64-linux/iconv/iconvconfig
 --output=$tmp --nostdlib /usr/lib64/gconv; \
 cmp $tmp /usr/lib64/gconv/gconv-modules.cache; \
 rm -f $tmp) >
/export/build/gnu/tools-build/glibc-cet-gitlab/build-x86_64-linux/iconv/test-iconvconfig.out;
\
../scripts/evaluate-test.sh iconv/test-iconvconfig $? false false >
/export/build/gnu/tools-build/glibc-cet-gitlab/build-x86_64-linux/iconv/test-iconvconfig.test-result
/export/build/gnu/tools-build/glibc-cet-gitlab/build-x86_64-linux/iconv/iconvconfig:
/lib64/libc.so.6: version `GLIBC_2.34' not found (required by
/export/build/gnu/tools-build/glibc-cet-gitlab/build-x86_64-linux/iconv/iconvconfig)
../scripts/merge-test-results.sh -s
/export/build/gnu/tools-build/glibc-cet-gitlab/build-x86_64-linux/iconv/ iconv
\
  test-iconvconfig \
  >
/export/build/gnu/tools-build/glibc-cet-gitlab/build-x86_64-linux/iconv/subdir-xtests.sum
make[2]: Leaving directory '/export/gnu/import/git/gitlab/x86-glibc/iconv'
scripts/merge-test-results.sh -t
/export/build/gnu/tools-build/glibc-cet-gitlab/build-x86_64-linux/
subdir-xtests.sum \
  iconv \
  >
/export/build/gnu/tools-build/glibc-cet-gitlab/build-x86_64-linux/xtests.sum
FAIL: iconv/test-iconvconfig
Summary of test results for extra tests:
      1 FAIL
make[1]: *** [Makefile:649: xtests] Error 1

when GCC is configured with --enable-hardcoded-path-in-tests

The problem is

$(objpfx)test-iconvconfig.out: /dev/null $(objpfx)iconvconfig
        (set -e; \
         tmp=$(objpfx)gconv-modules.cache.$$$$; \
         rm -f $$tmp; \
         $(make-test-out) --output=$$tmp --nostdlib $(inst_gconvdir); \
         cmp $$tmp $(inst_gconvdir)/gconv-modules.cache; \
         rm -f $$tmp) > $@; \
        $(evaluate-test)

Since $(objpfx)iconvconfig is a installed program, $(make-test-out)
shouldn't be used here.

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