[PD] compiling externals on osx

[altern]

hi

stupid question i guess but
I am trying to compile the externals under osx. I get the following error.

Ordenador-de-ibook:~/desktop/ext/build/darwin ibook$ make
cc -DPD -Os  -DUNIX -DMACOSX -Dunix -Wall -W -Wno-unused 
-Wno-parentheses -Wno-switch -Wno-shadow  -I. -I.. -I../include -o 
"ann.o" -c "../src/ann.c"
In file included from ../src/ann.c:2:
../../ann/src/ann_som.c: In function `som_read':
../../ann/src/ann_som.c:433: warning: implicit declaration of function 
`close'
cc -bundle  -bundle_loader /usr/local/pd/bin/pd  -o "ann.pd_darwin" 
"ann.o" -lc -lm \
#       `test -f ann.libs && cat ann.libs`
ld: can't open: /usr/local/pd/bin/pd (No such file or directory, errno = 2)
make: *** [ann.pd_darwin] Error 1

I have been editing the makefile at the build/darwin/makefile to set the 
proper path for PD but i dont understand very well this as i am new to 
osx and linux. So i am not sure what is the path i am supposed to set or 
if i am doing something else wrong.

thanks!!

-- 
enrike