From 9800b84d45e168d638a3e5aa1c02077cbcc45d6b Mon Sep 17 00:00:00 2001
From: Peter Veenstra <qbix79@users.sourceforge.net>
Date: Sun, 19 Mar 2006 10:48:50 +0000
Subject: [PATCH] Some configure changes for OS2

Imported-from: https://svn.code.sf.net/p/dosbox/code-0/dosbox/trunk@2550
---
 configure.in | 28 +++++++++++++++++++++++++++-
 1 file changed, 27 insertions(+), 1 deletion(-)

diff --git a/configure.in b/configure.in
index e8daf184..98f4be75 100644
--- a/configure.in
+++ b/configure.in
@@ -19,6 +19,14 @@ AC_PROG_CXX
 AC_PROG_INSTALL
 AC_PROG_RANLIB
 
+dnl Some needed libaries for OS2
+dnl perharps join this with the other host depended checks. move them upwards
+if test x$target = xi386-pc-os2-emx ; then
+    CXXFLAGS="$CXXFLAGS -Zmt"
+    LDFLAGS="$LDFLAGS -Zomf -Zmt"
+    LIBS="$LIBS -los2me"
+fi
+
 dnl Check for SDL
 SDL_VERSION=1.2.0
 AM_PATH_SDL($SDL_VERSION,
@@ -204,7 +212,21 @@ fi
 AH_TEMPLATE(C_MODEM,[Define to 1 to enable internal modem support, requires SDL_net])
 AH_TEMPLATE(C_IPX,[Define to 1 to enable IPX over Internet networking, requires SDL_net])
 AC_CHECK_HEADER(SDL_net.h,have_sdl_net_h=yes,)
+
+if test x$target = xi386-pc-os2-emx ; then
+  AC_MSG_CHECKING(for SDLNet_Init in SDL_net);
+  LIBS_BACKUP=$LIBS;
+  LIBS="$LIBS -lSDL_Net";
+  AC_LINK_IFELSE([
+    #include <SDL_Net.h>
+    int main(int argc,char * argv[]) {
+	return SDLNet_Init ();
+  };
+  ], [AC_MSG_RESULT(yes); have_sdl_net_lib=yes], AC_MSG_RESULT(no))
+  LIBS=$LIBS_BACKUP
+else
 AC_CHECK_LIB(SDL_net, SDLNet_Init, have_sdl_net_lib=yes, , )
+fi
 if test x$have_sdl_net_lib = xyes -a x$have_sdl_net_h = xyes ; then
   LIBS="$LIBS -lSDL_net"
    AC_DEFINE(C_MODEM,1)
@@ -268,7 +290,7 @@ case "$target" in
     *-*-cygwin* | *-*-mingw32*)
        LIBS="$LIBS -lwinmm"
        AC_CHECK_HEADERS(ddraw.h)
-       AC_DEFINE(C_DIRECTSERIAL, 1, [ Define to 1 if you want serial passthrough support (Win32 only).])
+       AC_DEFINE(C_DIRECTSERIAL, 1, [ Define to 1 if you want serial passthrough support (Win32 and OS/2 only).])
        ;;
     *-*-darwin*)
        dnl We have a problem here: both MacOS X and Darwin report 
@@ -281,6 +303,10 @@ case "$target" in
     *-*-linux-gnu*)
        AC_DEFINE(LINUX, 1, [Compiling on GNU/Linux])
        ;;
+    *-*-os2-emx*)
+       AC_DEFINE(OS2, 1, [Compiling on OS/2 EMX])
+       AC_DEFINE(C_DIRECTSERIAL, 1, [ Define to 1 if you want serial passthrough support (Win32 and OS/2 only).])
+       ;;
 esac
 
 dnl Some stuff for the icon.