freebsd-skq/contrib/libevent/m4/libevent_openssl.m4
Ed Maste c43e99fd14 Copy libevent sources to contrib
To replace the libevent embedded in ntp, for OpenSSL 1.1.1 compat.

Approved by:	re (gjb)
2018-10-09 14:05:11 +00:00

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dnl ######################################################################
dnl OpenSSL support
AC_DEFUN([LIBEVENT_OPENSSL], [
AC_REQUIRE([NTP_PKG_CONFIG])dnl
case "$enable_openssl" in
yes)
have_openssl=no
case "$PKG_CONFIG" in
'')
;;
*)
OPENSSL_LIBS=`$PKG_CONFIG --libs openssl 2>/dev/null`
case "$OPENSSL_LIBS" in
'') ;;
*) OPENSSL_LIBS="$OPENSSL_LIBS $EV_LIB_GDI $EV_LIB_WS32 $OPENSSL_LIBADD"
have_openssl=yes
;;
esac
OPENSSL_INCS=`$PKG_CONFIG --cflags openssl 2>/dev/null`
;;
esac
case "$have_openssl" in
yes) ;;
*)
save_LIBS="$LIBS"
LIBS=""
OPENSSL_LIBS=""
for lib in crypto eay32; do
# clear cache
unset ac_cv_search_SSL_new
AC_SEARCH_LIBS([SSL_new], [ssl ssl32],
[have_openssl=yes
OPENSSL_LIBS="$LIBS -l$lib $EV_LIB_GDI $EV_LIB_WS32 $OPENSSL_LIBADD"],
[have_openssl=no],
[-l$lib $EV_LIB_GDI $EV_LIB_WS32 $OPENSSL_LIBADD])
LIBS="$save_LIBS"
test "$have_openssl" = "yes" && break
done
;;
esac
AC_SUBST(OPENSSL_INCS)
AC_SUBST(OPENSSL_LIBS)
case "$have_openssl" in
yes) AC_DEFINE(HAVE_OPENSSL, 1, [Define if the system has openssl]) ;;
esac
;;
esac
# check if we have and should use openssl
AM_CONDITIONAL(OPENSSL, [test "$enable_openssl" != "no" && test "$have_openssl" = "yes"])
])