Follow-up Comment #4, bug #24452 (project grep):
> What regular expression engine are you using?
Plain PCRE and GLIB regexp (but it' just a wrapper around PCRE)
> p is certainly not supported by grep or glibc.
well... I have compiled 'grep' from master branch... patch works as well.
BTW,
slavaz@home ~/work/grep/ROOT/bin master$ ldd ./grep
linux-vdso.so.1 => (0x00007fff8d9b9000)
libpcre.so.0 => /lib64/libpcre.so.0 (0x00000036c3400000)
libc.so.6 => /lib64/libc.so.6 (0x00000036ad800000)
/lib64/ld-linux-x86-64.so.2 (0x00000036ad000000)
slavaz@home ~/work/grep/ROOT/bin master$
As I see PCRE used in 'grep' utility too.
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