Use ./configure; make

RH 7.0, as reported by _j_j
webmitm: webmitm.o buf.o
        $(CC) -ggdb -o webmitm webmitm.o buf.o -lssl -lcrypto -DP_SSL -I/usr/include/openssl

On Mandrake 8.1 don't forget to install the openssl-devel rpms.

Others, please e-mail me if you have problems.