From d9a7eb8f55ca5b886682cedd19f69292752ebd6b Mon Sep 17 00:00:00 2001
From: =?utf8?q?Pali=20Roh=C3=A1r?= <pali@kernel.org>
Date: Sun, 26 Dec 2021 18:47:33 +0100
Subject: [PATCH] configure: Generate config files for PCI_OS_WINDOWS

This change adds support for using configure script for cross-compiling
pciutils on Linux for Windows platforms.

Following command can be used to compile pcitils for Windows platform:

  make CROSS_COMPILE=i586-mingw32msvc- HOST=i386-windows ZLIB=no IDSDIR=.

PCI_OS_WINDOWS does not support BSD DNS functions, so do not automatically
enable DNS support.

Library ioperm is cygwin specific and is used only for PCI_OS_CYGWIN.
---
 lib/configure | 12 +++++++++---
 1 file changed, 9 insertions(+), 3 deletions(-)

diff --git a/lib/configure b/lib/configure
index ddcad87..9069248 100755
--- a/lib/configure
+++ b/lib/configure
@@ -142,10 +142,16 @@ case $sys in
 		echo >>$c '#define PCI_HAVE_PM_INTEL_CONF'
 		EXEEXT=.exe
 		;;
-	cygwin)
+	cygwin|windows)
 		echo_n " i386-ports"
 		echo >>$c '#define PCI_HAVE_PM_INTEL_CONF'
-		echo >>$m 'WITH_LIBS+=-lioperm'
+		if [ "$sys" = "cygwin" ] ; then
+			# ioperm is cygwin specific library and used only by lib/i386-io-cygwin.h
+			echo >>$m 'WITH_LIBS+=-lioperm'
+		elif [ "$sys" = "windows" ] ; then
+			# advapi32 is windows system library and used only by lib/i386-io-windows.h
+			echo >>$m 'WITH_LIBS+=-ladvapi32'
+		fi
 		EXEEXT=.exe
 		;;
 	beos|haiku)
@@ -199,7 +205,7 @@ echo_n "Checking for DNS support... "
 if [ "$DNS" = yes -o "$DNS" = no ] ; then
 	echo "$DNS (set manually)"
 else
-	if [ -f "$SYSINCLUDE/resolv.h" ] ; then
+	if [ "$sys" != "windows" -a -f "$SYSINCLUDE/resolv.h" ] ; then
 		DNS=yes
 	else
 		DNS=no
-- 
2.39.5