$OpenBSD: patch-platform_m4,v 1.2 2021/06/06 15:11:18 landry Exp $

Don't clobber LDFLAGS - ensures configure finds libobjc2.

Index: platform.m4
--- platform.m4.orig
+++ platform.m4
@@ -97,7 +97,7 @@ AC_DEFUN(OD_CONFIG_PLUGIN, [
 	    PLUGIN_LD="${CC} -shared"
 	    PLUGIN_LD_FLAGS=""
 	    PLUGIN_SUFFIX=".so"
-	    LDFLAGS="-export-dynamic"
+	    LDFLAGS="-export-dynamic ${LDFLAGS}"
 	    ;;
     esac
 
