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[Bug build/18796] New: build fails for --disable-mathvec


https://sourceware.org/bugzilla/show_bug.cgi?id=18796

            Bug ID: 18796
           Summary: build fails for --disable-mathvec
           Product: glibc
           Version: 2.22
            Status: NEW
          Severity: normal
          Priority: P2
         Component: build
          Assignee: unassigned at sourceware dot org
          Reporter: swb@michael-joost.de
                CC: carlos at redhat dot com
  Target Milestone: ---

When compiling for a non-SSE x86 CPU, hence --disable-mathvec, that mvec lib is
not compiled, but the generated soversions.mk contains an entry:

  libmvec.so-version=.1
  all-sonames+=libmvec=libmvec.so$(libmvec.so-version)

which is later (make install) consulted by scripts/testinstallation.pl, causing
this error:

.../i586-pc-linux-gnu/bin/ld: cannot find -lmvec
collect2: error: ld returned 1 exit status
Execution of i586-pc-linux-gnu-gcc failed!

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