luarocks not finding pcre for lrexlib-pcre on OS X

[Simon Lundström <simon@...>]

Hello,

I'm trying to install lrexlib-pcre via luarocks on Mac OS X where I have 
installed pcre via MacPorts. MacPorts puts its files in /opt/local so 
luarocks doesn't find pcre.h. That should be solved by setting PCRE_DIR 
to /opt/local/include/ but it doesn't.

bash-3.2# file /opt/local/include/pcre.h
/opt/local/include/pcre.h: ASCII c program text
bash-3.2# export PCRE_DIR=/opt/local/include/
bash-3.2# luarocks install lrexlib-pcre
Installing 
http://luarocks.luaforge.net/rocks/lrexlib-pcre-2.3.0-1.src.rock...
Archive: 
/tmp/luarocks-rock-lrexlib-pcre-2.3.0-1-1335/lrexlib-pcre-2.3.0-1.src.rock
  inflating: lrexlib-pcre-2.3.0-1.rockspec
 extracting: lrexlib-2.3.0.zip

Error: Could not find expected file pcre.h for PCRE -- you may have to 
install PCRE in your system and/or set the PCRE_DIR variable



Thanks,
- Simon