From c76164ea02aa3aebeff59d7d633a6107cb753772 Mon Sep 17 00:00:00 2001
From: Andrew Dunstan <andrew@dunslane.net>
Date: Thu, 10 Feb 2022 13:44:05 -0500
Subject: [PATCH] Use gendef instead of pexports for building windows .def
 files

Modern msys systems lack pexports but have gendef instead, so use that.

Discussion: https://postgr.es/m/3ccde7a9-e4f9-e194-30e0-0936e6ad68ba@dunslane.net

Backpatch to release 9.4 to enable building with perl on older branches.
Before that pexports is not used for plperl.
---
 src/pl/plperl/GNUmakefile | 2 +-
 src/pl/plpython/Makefile  | 2 +-
 src/pl/tcl/Makefile       | 2 +-
 3 files changed, 3 insertions(+), 3 deletions(-)

diff --git a/src/pl/plperl/GNUmakefile b/src/pl/plperl/GNUmakefile
index 97a94c727ef..02f015f339c 100644
--- a/src/pl/plperl/GNUmakefile
+++ b/src/pl/plperl/GNUmakefile
@@ -57,7 +57,7 @@ lib$(perlwithver).a: $(perlwithver).def
 	dlltool --dllname $(perlwithver).dll --def $(perlwithver).def --output-lib lib$(perlwithver).a
 
 $(perlwithver).def: $(PERLDLL)
-	pexports $^ > $@
+	gendef - $^ > $@
 
 endif # win32
 
diff --git a/src/pl/plpython/Makefile b/src/pl/plpython/Makefile
index 03de9af0b3e..957b44a2519 100644
--- a/src/pl/plpython/Makefile
+++ b/src/pl/plpython/Makefile
@@ -74,7 +74,7 @@ libpython${pytverstr}.a: python${pytverstr}.def
 	dlltool --dllname python${pytverstr}.dll --def python${pytverstr}.def --output-lib libpython${pytverstr}.a
 
 python${pytverstr}.def:
-	pexports $(PYTHONDLL) > $@
+	gendef - $(PYTHONDLL) > $@
 
 endif # win32
 
diff --git a/src/pl/tcl/Makefile b/src/pl/tcl/Makefile
index 2ab2a2791bb..5a68ea815c1 100644
--- a/src/pl/tcl/Makefile
+++ b/src/pl/tcl/Makefile
@@ -61,7 +61,7 @@ lib$(tclwithver).a: $(tclwithver).def
 	dlltool --dllname $(tclwithver).dll --def $(tclwithver).def --output-lib lib$(tclwithver).a
 
 $(tclwithver).def: $(TCLDLL)
-	pexports $^ > $@
+	gendef - $^ > $@
 
 endif # win32