No need to specify anything for PCRE
|Reported by:||Owned by:|
"CCARGS="$CCARGS -DHAS_PCRE" AUXLIBS="$AUXLIBS -lpcre" : These make variables add PCRE support to Postfix."
Ha! Persuading it NOT to use PCRE took literally minutes!! Certainly if blfs book is followed for PCRE install, postfix will correctly detect and use it.
To specifically not use it, there's probably an easier way than hacking makedefs.