From deace87b4ec0c788ad2ba3dbda6ddf0238254389 Mon Sep 17 00:00:00 2001
From: arif <devnull@localhost>
Date: Wed, 21 Jan 2009 16:47:00 +0000
Subject: [PATCH] changes required for MS visual studio DLL build

---
 lib/gvc/gvconfig.c | 24 +++++++++++++++++++++++-
 lib/gvc/gvio.h     | 10 +++++++++-
 2 files changed, 32 insertions(+), 2 deletions(-)

diff --git a/lib/gvc/gvconfig.c b/lib/gvc/gvconfig.c
index a5d378d22..515f702d7 100644
--- a/lib/gvc/gvconfig.c
+++ b/lib/gvc/gvconfig.c
@@ -59,11 +59,25 @@ static int glob (GVC_t * gvc, char*, int, int (*errfunc)(const char *, int), glo
 #include	"gvcjob.h"
 #include	"gvcint.h"
 #include        "gvcproc.h"
+
+/*visual studio*/
+#ifdef WIN32_DLL
+#ifndef GVC_EXPORTS
+__declspec(dllimport) int Demand_Loading;
+#else
+__declspec(dllexport) int Demand_Loading;
+#endif
+#endif
+/*end visual studio*/
+
+#ifndef WIN32_DLL
 #ifdef GVDLL
 __declspec(dllexport) int Demand_Loading;
 #else
 extern const int Demand_Loading;
 #endif
+#endif
+
 
 #ifdef WITH_CODEGENS
     extern codegen_t HPGL_CodeGen, MIF_CodeGen, MP_CodeGen, PIC_CodeGen, DIA_CodeGen, VTX_CodeGen;
@@ -243,10 +257,18 @@ static void gvconfig_plugin_install_builtins(GVC_t * gvc)
 /* For Windows DLLs using builtins, we need to initialize
  * the lt_preloaded_symbols table.
  */
+/*visual studio*/
+#if defined(WIN32_DLL) && !defined(ENABLE_LTDL)
+    init_lt_preloaded_symbols();
+#endif
+/*end visual studio*/
+
+#ifndef WIN32_DLL
 #if defined(GVDLL) && !defined(ENABLE_LTDL)
     init_lt_preloaded_symbols();
 #endif
-    s = lt_preloaded_symbols;
+#endif
+	s = lt_preloaded_symbols;
     for (s = lt_preloaded_symbols; (name = s->name); s++)
 	if (name[0] == 'g' && strstr(name, "_LTX_library")) 
 	    gvconfig_plugin_install_from_library(gvc, NULL,
diff --git a/lib/gvc/gvio.h b/lib/gvc/gvio.h
index 5ba32081b..50694460b 100644
--- a/lib/gvc/gvio.h
+++ b/lib/gvc/gvio.h
@@ -29,7 +29,15 @@ extern "C" {
 #define extern
 #endif
 
-    extern size_t gvwrite (GVJ_t * job, const char *s, size_t len);
+/*visual studio*/
+#ifdef WIN32_DLL
+#ifndef GVC_EXPORTS
+#define extern __declspec(dllimport)
+#endif
+#endif
+/*end visual studio*/
+
+	extern size_t gvwrite (GVJ_t * job, const char *s, size_t len);
     extern int gvputc(GVJ_t * job, int c);
     extern int gvputs(GVJ_t * job, const char *s);
     extern void gvprintf(GVJ_t * job, const char *format, ...);
-- 
2.40.0