diff --git a/package/openldap/openldap.mk b/package/openldap/openldap.mk
index 991d36953f..68464abcea 100644
--- a/package/openldap/openldap.mk
+++ b/package/openldap/openldap.mk
@@ -10,6 +10,7 @@ OPENLDAP_SITE = ftp://ftp.openldap.org/pub/OpenLDAP/openldap-release
 OPENLDAP_LICENSE = OpenLDAP Public License
 OPENLDAP_LICENSE_FILES = LICENSE
 OPENLDAP_INSTALL_STAGING = YES
+OPENLDAP_DEPENDENCIES = host-pkgconf
 
 ifeq ($(BR2_PACKAGE_OPENSSL),y)
 OPENLDAP_TLS = openssl
@@ -30,6 +31,7 @@ endif
 ifeq ($(BR2_PACKAGE_OPENSSL),y)
 OPENLDAP_MP = bignum
 OPENLDAP_DEPENDENCIES += openssl
+OPENLDAP_CONF_ENV = LIBS="$(shell $(PKG_CONFIG_HOST_BINARY) --libs libssl libcrypto)"
 else ifeq ($(BR2_PACKAGE_GMP),y)
 OPENLDAP_MP = gmp
 OPENLDAP_DEPENDENCIES += gmp
@@ -37,7 +39,7 @@ else
 OPENLDAP_MP = longlong
 endif
 
-OPENLDAP_CONF_ENV = ac_cv_func_memcmp_working=yes
+OPENLDAP_CONF_ENV += ac_cv_func_memcmp_working=yes
 
 OPENLDAP_CONF_OPTS += \
 	--enable-syslog \