Can't Find OpenSSL Headers

[nicholasdelrio]

install-virtuoso-on-mac.sh's ./configure... emits:

configure:32082: checking validity of the OpenSSL headers in /usr
configure:32142: gcc -c -O2 -m64   -DOPENSSL_NO_KRB5 conftest.c >&5
conftest.c:138:10: fatal error: 'openssl/rsa.h' file not found
#include <openssl/rsa.h>
         ^
1 error generated.

[timrdf]

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