From 1c0bf372fa185278856970c4e80d7714570392d1 Mon Sep 17 00:00:00 2001
From: Andrew Dunstan <andrew@dunslane.net>
Date: Sat, 1 Feb 2014 16:14:15 -0500
Subject: [PATCH] Don't use deprecated dllwrap on Cygwin.

The preferred method is to use "cc -shared", and this allows binaries
to be rebased if required, unlike dllwrap.

Backpatch to 9.0 where we have buildfarm coverage.

There are still some issues with Cygwin, especially modern Cygwin, but
this helps us get closer to good support.

Marco Atzeri.
---
 src/Makefile.shlib            | 12 ++++++++++++
 src/makefiles/Makefile.cygwin |  5 +----
 2 files changed, 13 insertions(+), 4 deletions(-)

diff --git a/src/Makefile.shlib b/src/Makefile.shlib
index a01d10be042a4..d33422c0c731b 100644
--- a/src/Makefile.shlib
+++ b/src/Makefile.shlib
@@ -308,6 +308,7 @@ ifeq ($(PORTNAME), unixware)
 endif
 
 ifeq ($(PORTNAME), cygwin)
+  LINK.shared		= $(CC) -shared
   ifdef SO_MAJOR_VERSION
     shlib		= cyg$(NAME)$(DLSUFFIX)
   endif
@@ -398,6 +399,16 @@ else # PORTNAME == cygwin || PORTNAME == win32
 
 # If SHLIB_EXPORTS is set, the rules below will build a .def file from
 # that.  Else we build a temporary one here.
+ifeq ($(PORTNAME), cygwin)
+$(shlib): $(OBJS) | $(SHLIB_PREREQS)
+	$(CC) $(CFLAGS)  -shared -o $@  $(OBJS) $(LDFLAGS) $(LDFLAGS_SL) $(SHLIB_LINK) $(LIBS) $(LDAP_LIBS_BE)
+
+$(stlib): $(OBJS) | $(SHLIB_PREREQS)
+	$(LINK.static) $@ $^
+	$(RANLIB) $@
+
+
+else
 ifeq (,$(SHLIB_EXPORTS))
 DLL_DEFFILE = lib$(NAME)dll.def
 exports_file = $(DLL_DEFFILE)
@@ -414,6 +425,7 @@ $(shlib): $(OBJS) $(DLL_DEFFILE)
 $(stlib): $(shlib) $(DLL_DEFFILE)
 	$(DLLTOOL) --dllname $(shlib) $(DLLTOOL_LIBFLAGS) --def $(DLL_DEFFILE) --output-lib $@
 
+endif # PORTNAME == cygwin 
 endif # PORTNAME == cygwin || PORTNAME == win32
 
 endif # enable_shared
diff --git a/src/makefiles/Makefile.cygwin b/src/makefiles/Makefile.cygwin
index 1a5bdc85cd81d..44fa4055182d6 100644
--- a/src/makefiles/Makefile.cygwin
+++ b/src/makefiles/Makefile.cygwin
@@ -1,6 +1,5 @@
 # $PostgreSQL: pgsql/src/makefiles/Makefile.cygwin,v 1.15 2010/07/05 23:15:56 tgl Exp $
 DLLTOOL= dlltool
-DLLWRAP= dllwrap
 ifdef PGXS
 BE_DLLLIBS= -L$(libdir) -lpostgres
 else
@@ -40,6 +39,4 @@ endif
 
 # Rule for building a shared library from a single .o file
 %.dll: %.o
-	$(DLLTOOL) --export-all --output-def $*.def $<
-	$(DLLWRAP) -o $@ --def $*.def $< $(LDFLAGS) $(LDFLAGS_SL) $(BE_DLLLIBS)
-	rm -f $*.def
+	 $(CC) $(CFLAGS)  -shared -o $@ $<  $(LDFLAGS) $(LDFLAGS_SL) $(BE_DLLLIBS)