use -ldl for any OS that needs it

auto/lib/openssl/conf

diff --git a/auto/lib/openssl/conf b/auto/lib/openssl/conf
index 8716339..8a762a2 100644
--- a/auto/lib/openssl/conf
+++ b/auto/lib/openssl/conf
@@ -29,16 +29,10 @@
             CORE_DEPS="$CORE_DEPS $OPENSSL/openssl/include/openssl/ssl.h"
             CORE_LIBS="$CORE_LIBS $OPENSSL/openssl/lib/libssl.a"
             CORE_LIBS="$CORE_LIBS $OPENSSL/openssl/lib/libcrypto.a"
-        ;;
-    esac
-
-    case "$NGX_SYSTEM" in
-        SunOS|Linux)
             CORE_LIBS="$CORE_LIBS $NGX_LIBDL"
         ;;
     esac
 
-
 else
 
     case "$NGX_PLATFORM" in
@@ -70,14 +64,8 @@
 
             if [ $ngx_found = yes ]; then
                 have=NGX_SSL . auto/have
-                CORE_LIBS="$CORE_LIBS $ngx_feature_libs"
+                CORE_LIBS="$CORE_LIBS $ngx_feature_libs $NGX_LIBDL"
                 OPENSSL=YES
-
-                case "$NGX_SYSTEM" in
-                    SunOS)
-                        CORE_LIBS="$CORE_LIBS $NGX_LIBDL"
-                    ;;
-                esac
             fi
         ;;