Can't find oci.h

I'm building Php (4.3.3) on Solaris and am including oci8 support. Configure works fine. When I try to build, I get an error on the compilation of ext/oci8/oci8.c - it can't find oci.h, and then I get tons of errors, I suppose all stemming from this. I don't think this is supposed to be in the Oracle home directory, since there is no "-I" swithes on the compile line that reference Oracle home, except for "-I/path/OraHome1/rdbms/demo Does anyone know what I'm missing? Below is the 1st make command: /bin/sh /export/home/emsuser/ped/php-4.3.3/libtool --silent --preserve-dup-deps --mode=compile gcc -Iext/oci8/ -I/export/home/emsuser/ped/php-4.3.3/ext/oci8/ -DPHP_ATOM_INC -I/export/home/emsuser/ped/php-4.3.3/include -I/export/home/emsuser/ped/php-4.3.3/main -I/export/home/emsuser/ped/php-4.3.3 -I/export/home/emsuser/ped/php-4.3.3/Zend -I/export/home/oracle/OraHome1/rdbms/demo -I/export/home/emsuser/ped/php-4.3.3/ext/xml/expat -D_POSIX_PTHREAD_SEMANTICS -I/export/home/emsuser/ped/php-4.3.3/TSRM -g -O2 -prefer-pic -c /export/home/emsuser/ped/php-4.3.3/ext/oci8/oci8.c -o ext/oci8/oci8.lo --- Peter Donahue Ciena Corp pdonahue@ciena.com 978-489-2116