Is the test below done on purpose ? It seems to cause my SSL_INCLUDES to not be set and cause the compilation of kssl to fail stating that it cannot find OPENSSL_free(...). It seems that for whatever reason /usr/include is not checked by default. It indeed is the case when I check the command executed to compile the certificate handling code in kssl. This worked fine just last week and I did not perform any upgrade to this machine since then. As a workaaround I edited the file and added the /usr/include directory by hand to SSL_INCLUDES=. Any clues ? Anybody else have the similar issues ? if test "$ssl_includes" = "/usr/include" || test "$ssl_includes" = "/usr/local/include" || test -z "$ssl_includes"; then SSL_INCLUDES=""; else SSL_INCLUDES="-I$ssl_includes" fi if test "$ssl_libraries" = "/usr/lib" || test "$ssl_libraries" = "/usr/local/lib" || test -z "$ssl_libraries"; then SSL_LDFLAGS="" else SSL_LDFLAGS="-L$ssl_libraries" fi Regards, Dawit A.