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ppc64 egrep weirdness



In a ppc64 build, which succeeds on ppc/i386/x86_64, I've run into a
situation where egrep fails

  echo 'private1: PRIVATE: (libc.so.6:GLIBC_PRIVATE) __open_catalog' | egrep 'PRIVATE:.*libc.*(__open|__nanosleep)'

while the corresponding grep succeeds:

  echo 'private1: PRIVATE: (libc.so.6:GLIBC_PRIVATE) __open_catalog' | grep 'PRIVATE:.*libc.*\(__open\|__nanosleep\)'

Does anyone have a theory why egrep fails only on ppc64 in this case?


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