dnl Check for OpenSSL AC_MSG_CHECKING([for OpenSSL installation]) AC_ARG_WITH([openssl], [AS_HELP_STRING([--with-openssl@<:@=DIR@:>@], [path to directory containing openssl @<:@default=/usr/local or /usr if not found in /usr/local@:>@])], [ if test "$withval"; then LIBSSL_HOME="$withval" fi ], [ LIBSSL_HOME=/usr/local if test ! -f "$LIBSSL_HOME/include/openssl/ssl.h" then LIBSSL_HOME=/usr fi AC_MSG_RESULT([$LIBSSL_HOME]) ]) if test ! -f "$LIBSSL_HOME/include/openssl/ssl.h" then AC_MSG_ERROR([OpenSSL not found.]) fi save_LDFLAGS="$LDFLAGS" save_CFLAGS="$CFLAGS" save_LIBS="$LIBS" SSL_LIBS="-lssl -lcrypto -lz" if test "$LIBSSL_HOME" != "/usr"; then SSL_LDFLAGS="-L$LIBSSL_HOME/lib" SSL_CPPFLAGS="-I$LIBSSL_HOME/include" LDFLAGS="-L$LIBSSL_HOME/lib $SSL_LIBS" CFLAGS="$SSL_CPPFLAGS" else SSL_LDFLAGS="" SSL_CPPFLAGS="" fi have_ssl="no" have_crypto="no" AC_CHECK_LIB([ssl], [SSL_library_init], [have_ssl="yes"], [AC_MSG_ERROR([Your OpenSSL installation is misconfigured or missing])], [-lcrypto -lz]) AC_CHECK_LIB([crypto], [EVP_EncryptInit], [have_crypto="yes"], [AC_MSG_ERROR([Your OpenSSL installation is misconfigured or missing])], [-lcrypto -lz]) dnl OpenSSL 0.9.8 is the minimum required version due to X509_VERIFY_PARAM AC_CHECK_LIB([ssl], [X509_VERIFY_PARAM_new], [], [AC_MSG_ERROR([Your OpenSSL installation is missing the X509_VERIFY_PARAM function. Please upgrade to a more recent version of OpenSSL.])], [-lcrypto -lz]) LDFLAGS="$save_LDFLAGS" CFLAGS="$save_CFLAGS" LIBS="$save_LIBS"