--with-openssl-includedir=<dir>
                          path to include directory of OpenSSL or LibreSSL
                          installation
  --with-openssl-libdir=<dir>
                          path to lib directory of OpenSSL or LibreSSL
                          installation
  --with-openssl-pkgconfig=<dir>

                          path to pkgconfigdir directory for OpenSSL or
                          LibreSSL

Some influential environment variables:
  CC          C compiler command
  CFLAGS      C compiler flags
  LDFLAGS     linker flags, e.g. -L<lib dir> if you have libraries in a
              nonstandard directory <lib dir>
  LIBS        libraries to pass to the linker, e.g. -l<library>

  enableval=$enable_tls1;
		if test "${enableval}" = "no"; then

printf "%s\n" "#define NO_TLS1 1" >>confdefs.h

			{ printf "%s\n" "$as_me:${as_lineno-$LINENO}: checking for disable TLS1 protocol" >&5
printf %s "checking for disable TLS1 protocol... " >&6; }
			{ printf "%s\n" "$as_me:${as_lineno-$LINENO}: result: yes" >&5
printf "%s\n" "yes" >&6; }
		fi

fi


		# Check whether --enable-tls1_1 was given.
if test ${enable_tls1_1+y}
then :
  enableval=$enable_tls1_1;
		if test "${enableval}" = "no"; then

printf "%s\n" "#define NO_TLS1_1 1" >>confdefs.h

			{ printf "%s\n" "$as_me:${as_lineno-$LINENO}: checking for disable TLS1.1 protocol" >&5
printf %s "checking for disable TLS1.1 protocol... " >&6; }
			{ printf "%s\n" "$as_me:${as_lineno-$LINENO}: result: yes" >&5
printf "%s\n" "yes" >&6; }
		fi

fi


		# Check whether --enable-tls1_2 was given.
if test ${enable_tls1_2+y}
then :
  enableval=$enable_tls1_2;
		if test "${enableval}" = "no"; then

printf "%s\n" "#define NO_TLS1_2 1" >>confdefs.h

			{ printf "%s\n" "$as_me:${as_lineno-$LINENO}: checking for disable TLS1.2 protocol" >&5
printf %s "checking for disable TLS1.2 protocol... " >&6; }
			{ printf "%s\n" "$as_me:${as_lineno-$LINENO}: result: yes" >&5
printf "%s\n" "yes" >&6; }
		fi

fi


		# Check whether --enable-tls1_3 was given.
if test ${enable_tls1_3+y}
then :
  enableval=$enable_tls1_3;
		if test "${enableval}" = "no"; then

printf "%s\n" "#define NO_TLS1_3 1" >>confdefs.h

			{ printf "%s\n" "$as_me:${as_lineno-$LINENO}: checking for disable TLS1.3 protocol" >&5
printf %s "checking for disable TLS1.3 protocol... " >&6; }
			{ printf "%s\n" "$as_me:${as_lineno-$LINENO}: result: yes" >&5
printf "%s\n" "yes" >&6; }
		fi

fi



		# Check whether --enable-ssl-fastpath was given.

then :
  withval=$with_openssl_includedir;
			opensslincludedir="$withval"

else $as_nop

			if test ! -z "$openssldir"; then
				if test -f "${openssldir}/include/openssl/ssl.h"; then
					opensslincludedir="${openssldir}/include/openssl"
				else
					opensslincludedir="${openssldir}/include"
				fi
			else
				opensslincludedir=''
			fi


fi

	{ printf "%s\n" "$as_me:${as_lineno-$LINENO}: checking for OpenSSL include directory" >&5
printf %s "checking for OpenSSL include directory... " >&6; }
	{ printf "%s\n" "$as_me:${as_lineno-$LINENO}: result: $opensslincludedir" >&5
printf "%s\n" "$opensslincludedir" >&6; }

		if test ! -z "$opensslincludedir"; then
		if test -f "$opensslincludedir/ssl.h"; then
			TCLTLS_SSL_CFLAGS="-I$opensslincludedir"
			TCLTLS_SSL_INCLUDES="-I$opensslincludedir"
			{ printf "%s\n" "$as_me:${as_lineno-$LINENO}: checking for ssl.h" >&5
printf %s "checking for ssl.h... " >&6; }
			{ printf "%s\n" "$as_me:${as_lineno-$LINENO}: result: yes" >&5
printf "%s\n" "yes" >&6; }
		else
			{ printf "%s\n" "$as_me:${as_lineno-$LINENO}: checking for ssl.h" >&5
printf %s "checking for ssl.h... " >&6; }
			{ printf "%s\n" "$as_me:${as_lineno-$LINENO}: result: no" >&5
printf "%s\n" "no" >&6; }
			as_fn_error $? "Unable to locate ssl.h" "$LINENO" 5
		fi



	fi


# Check whether --with-openssl-libdir was given.
if test ${with_openssl_libdir+y}
then :
  withval=$with_openssl_libdir;

	{ printf "%s\n" "$as_me:${as_lineno-$LINENO}: result: $openssllibdir" >&5
printf "%s\n" "$openssllibdir" >&6; }

		if test ! -z "$openssllibdir"; then
		if test -f "$openssllibdir/libssl${SHLIB_SUFFIX}"; then
			if test "${TCLEXT_TLS_STATIC_SSL}" == 'no'; then
				TCLTLS_SSL_LIBS="-L$openssllibdir -lcrypto -lssl"
			#else
				# Linux and Solaris
				#TCLTLS_SSL_LIBS="-Wl,-Bstatic `$PKG_CONFIG --static --libs crypto ssl` -Wl,-Bdynamic"
				# HPUX
				# -Wl,-a,archive ... -Wl,-a,shared_archive
			fi
		else
			as_fn_error $? "Unable to locate libssl${SHLIB_SUFFIX}" "$LINENO" 5
		fi


	fi








# Check whether --with-openssl-pkgconfig was given.
if test ${with_openssl_pkgconfig+y}
then :
  withval=$with_openssl_pkgconfig;
			opensslpkgconfigdir="$withval"

else $as_nop

			if test -d ${libdir}/../pkgconfig; then
				opensslpkgconfigdir="$libdir/../pkgconfig"
			else
				opensslpkgconfigdir=''
			fi


fi

	{ printf "%s\n" "$as_me:${as_lineno-$LINENO}: checking for OpenSSL pkgconfig" >&5
printf %s "checking for OpenSSL pkgconfig... " >&6; }
	{ printf "%s\n" "$as_me:${as_lineno-$LINENO}: result: $opensslpkgconfigdir" >&5

		if test -n "${PKG_CONFIG}"; then
				PKG_CONFIG_PATH_SAVE="${PKG_CONFIG_PATH}"
		if test -n "${opensslpkgconfigdir}"; then
			if ! test -f "${opensslpkgconfigdir}/openssl.pc"; then
				as_fn_error $? "Unable to locate ${opensslpkgconfigdir}/openssl.pc" "$LINENO" 5
			fi

			PKG_CONFIG_PATH="${opensslpkgconfigdir}:${PKG_CONFIG_PATH}"
			export PKG_CONFIG_PATH
		fi
		if test -z "$TCLTLS_SSL_LIBS"; then
			TCLTLS_SSL_LIBS="`"${PKG_CONFIG}" openssl --libs $pkgConfigExtraArgs`" || as_fn_error $? "Unable to get OpenSSL Configuration" "$LINENO" 5
		fi
		if test -z "$TCLTLS_SSL_CFLAGS"; then
			TCLTLS_SSL_CFLAGS="`"${PKG_CONFIG}" openssl --cflags-only-other $pkgConfigExtraArgs`" || as_fn_error $? "Unable to get OpenSSL Configuration" "$LINENO" 5
		fi
		if test -z "$TCLTLS_SSL_INCLUDES"; then
			TCLTLS_SSL_INCLUDES="`"${PKG_CONFIG}" openssl --cflags-only-I $pkgConfigExtraArgs`" || as_fn_error $? "Unable to get OpenSSL Configuration" "$LINENO" 5
		fi
		PKG_CONFIG_PATH="${PKG_CONFIG_PATH_SAVE}"
	fi


		if test -z "$TCLTLS_SSL_LIBS"; then
		TCLTLS_SSL_LIBS="-lcrypto -lssl"
	fi
	if test -z "$TCLTLS_SSL_CFLAGS"; then
		TCLTLS_SSL_CFLAGS=""
	fi
	if test -z "$TCLTLS_SSL_INCLUDES"; then
		if test -d /usr/include/openssl; then
			TCLTLS_SSL_INCLUDES="-I/usr/include/openssl"
		else
			TCLTLS_SSL_INCLUDES="-I/usr/include"
		fi
	fi






#--------------------------------------------------------------------
# Shared libraries and static libraries have different names.
# Also, windows libraries and unix libraries have different names.
# For the OpenSSL version, I chose to use the same library names that
# OpenSSL uses as its default names.