On 03/23/2014 06:21 PM, Paul Eggert wrote: > Although egrep's and fgrep's switch from shell scripts to > executables may have made sense in 2005, it complicated > maintenance and recently has caused subtle performance bugs. > Go back to the old way of doing things, as it's simpler and more > easily separated from the mainstream implementation. This should > be good enough nowadays, as POSIX has withdrawn egrep/fgrep and > portable applications should be using -E/-F anyway.
Possibly related to whoever wants to tackle writing 'egrep' as a C wrapper program - you need to consider what happens when the user supplies program_transform_name as part of their configure arguments. This recent autoconf thread picked on grep as an example - so we'd better get the example right :) https://lists.gnu.org/archive/html/autoconf/2014-04/msg00011.html -- Eric Blake eblake redhat com +1-919-301-3266 Libvirt virtualization library http://libvirt.org
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