$NetBSD: patch-src_interfaces_libpq_Makefile,v 1.1 2025/10/06 13:30:22 adam Exp $

--- src/interfaces/libpq/Makefile.orig	2025-09-22 20:11:33.000000000 +0000
+++ src/interfaces/libpq/Makefile
@@ -70,7 +70,7 @@ fe-auth-oauth_shlib.o: override CPPFLAGS
 OBJS_SHLIB = fe-auth-oauth_shlib.o
 
 ifeq ($(PORTNAME), cygwin)
-override shlib = cyg$(NAME)$(DLSUFFIX)
+override shlib = cyg$(NAME)-$(SO_MAJOR_VERSION)$(DLSUFFIX)
 endif
 
 ifeq ($(PORTNAME), win32)