problem compiling with openssl support

Hi I cannot manage to compile openssl support into php. my configuration line is CPPFLAGS='-I/usr/local/include/' ./configure --with-apxs=/usr/local/apache/bin/apxs --with-mysql=/usr --with-gettext-dir=/usr --with-gd --with-png-dir=/usr --with-zlib-dir=/usr --with-jpeg-dir=/usr --with-gd-native-ttf --enable-magic-quotes --enable-calendar --enable-ftp --enable-wddx --with-openssl=/usr configure always complains that it cannot find evp.h evp.h IS located in /usr/local/include/openssl I have tried a vairety of variations to try and get it to work. Perhaps I have not set CPPFLAGS properly or I need something else? hope someone can show me the way. Jon