AC_DEFUN([LFTP_OPENSSL_CHECK],

[AC_MSG_CHECKING([for openssl library])

AC_CACHE_VAL(lftp_cv_openssl,

[

	found_loc=none;

	lftp_cv_openssl=none;

	for loc in $openssl_loc default /usr/local/ssl; do

		old_LIBS="$LIBS"

		old_LDFLAGS="$LDFLAGS"

		old_CPPFLAGS="$CPPFLAGS"

		LIBS="$LIBS -lssl -lcrypto"

		if test $loc != default; then

			LDFLAGS="$LDFLAGS -L$loc/lib"

			CPPFLAGS="$CPPFLAGS -I$loc/include"

		fi

		AC_LINK_IFELSE([AC_LANG_PROGRAM([[#include <openssl/ssl.h>

			 #include <openssl/rand.h>]], [[static SSL_CTX *ctx; SSL_new(ctx); RAND_status()]])],[found_loc="$loc"],[])

		LIBS="$old_LIBS"

		LDFLAGS="$old_LDFLAGS"

		CPPFLAGS="$old_CPPFLAGS"

		if test $found_loc != "none"; then

			lftp_cv_openssl="OPENSSL_LIBS=\"-lssl -lcrypto\""

			if test $found_loc != default; then

				r=""; test "$enable_rpath" = yes -a "$found_loc" != /usr && r=" -R$found_loc/lib"

				lftp_cv_openssl="$lftp_cv_openssl OPENSSL_LDFLAGS=\"-L$found_loc/lib$r\""

				lftp_cv_openssl="$lftp_cv_openssl OPENSSL_CPPFLAGS=-I$found_loc/include"

			fi

			break;

		fi

	done

])

if test "$lftp_cv_openssl" != none; then

	eval $lftp_cv_openssl

	AC_SUBST(OPENSSL_LIBS)

	AC_SUBST(OPENSSL_LDFLAGS)

	AC_SUBST(OPENSSL_CPPFLAGS)

	AC_DEFINE(USE_OPENSSL, 1, [define if you are using openssl])

	AC_MSG_RESULT($lftp_cv_openssl)

else

	AC_MSG_RESULT(none found)

fi

])