X-Git-Url: https://ncurses.scripts.mit.edu/?p=ncurses.git;a=blobdiff_plain;f=include%2Fncurses_dll.h.in;h=437c54de0271560d58c112a65f096e7dd67016dc;hp=82c9b85ca542a8454d58be2c6bb405d1240fdfa8;hb=f67a188e71a0e6f80c1c45e50e7a7449c2d7bfb3;hpb=3ce2c58251fe1353768cc630103cdb12ecc8be0a

diff --git a/include/ncurses_dll.h.in b/include/ncurses_dll.h.in
index 82c9b85c..437c54de 100644
--- a/include/ncurses_dll.h.in
+++ b/include/ncurses_dll.h.in
@@ -1,5 +1,6 @@
 /****************************************************************************
- * Copyright (c) 1998-2007,2009 Free Software Foundation, Inc.              *
+ * Copyright 2018,2020 Thomas E. Dickey                                     *
+ * Copyright 2009,2014 Free Software Foundation, Inc.                       *
  *                                                                          *
  * Permission is hereby granted, free of charge, to any person obtaining a  *
  * copy of this software and associated documentation files (the            *
@@ -25,62 +26,74 @@
  * sale, use or other dealings in this Software without prior written       *
  * authorization.                                                           *
  ****************************************************************************/
-/* $Id: ncurses_dll.h.in,v 1.8 2009/04/04 22:26:27 tom Exp $ */
+/* $Id: ncurses_dll.h.in,v 1.17 2020/09/05 17:58:47 juergen Exp $ */
 
 #ifndef NCURSES_DLL_H_incl
 #define NCURSES_DLL_H_incl 1
 
 /*
- * For reentrant code, we map the various global variables into SCREEN by
- * using functions to access them.
+ * MinGW gcc (unlike MSYS2 and Cygwin) should define _WIN32 and possibly _WIN64.
  */
-#define NCURSES_PUBLIC_VAR(name) @NCURSES_WRAP_PREFIX@##name
-#define NCURSES_WRAPPED_VAR(type,name) extern type NCURSES_PUBLIC_VAR(name)(void)
+#if defined(__MINGW64__)
 
-/* no longer needed on cygwin or mingw, thanks to auto-import       */
-/* but this structure may be useful at some point for an MSVC build */
-/* so, for now unconditionally define the important flags           */
-/* "the right way" for proper static and dll+auto-import behavior   */
-#undef NCURSES_DLL
-#define NCURSES_STATIC
-
-#if defined(__CYGWIN__) || defined(__MINGW32__)
-#  if defined(NCURSES_DLL)
-#    if defined(NCURSES_STATIC)
-#      undef NCURSES_STATIC
-#    endif
-#  endif
-#  undef NCURSES_IMPEXP
-#  undef NCURSES_API
-#  undef NCURSES_EXPORT
-#  undef NCURSES_EXPORT_VAR
-#  if defined(NCURSES_DLL)
-/* building a DLL */
-#    define NCURSES_IMPEXP __declspec(dllexport)
-#  elif defined(NCURSES_STATIC)
-/* building or linking to a static library */
-#    define NCURSES_IMPEXP /* nothing */
-#  else
-/* linking to the DLL */
-#    define NCURSES_IMPEXP __declspec(dllimport)
-#  endif
-#  define NCURSES_API __cdecl
-#  define NCURSES_EXPORT(type) NCURSES_IMPEXP type NCURSES_API
-#  define NCURSES_EXPORT_VAR(type) NCURSES_IMPEXP type
+#ifndef _WIN64
+#define _WIN64 1
 #endif
 
-/* Take care of non-cygwin platforms */
-#if !defined(NCURSES_IMPEXP)
-#  define NCURSES_IMPEXP /* nothing */
+#elif defined(__MINGW32__)
+
+#ifndef _WIN32
+#define _WIN32 1
 #endif
-#if !defined(NCURSES_API)
-#  define NCURSES_API /* nothing */
+
+/* 2014-08-02 workaround for broken MinGW compiler.
+ * Oddly, only TRACE is mapped to trace - the other -D's are okay.
+ * suggest TDM as an alternative.
+ */
+#if (__GNUC__ == 4) && (__GNUC_MINOR__ == 8)
+
+#ifdef trace
+#undef trace
+#define TRACE
 #endif
-#if !defined(NCURSES_EXPORT)
-#  define NCURSES_EXPORT(type) NCURSES_IMPEXP type NCURSES_API
+
+#endif	/* broken compiler */
+
+#endif	/* MingW */
+
+/*
+ * For reentrant code, we map the various global variables into SCREEN by
+ * using functions to access them.
+ */
+#define NCURSES_PUBLIC_VAR(name) @NCURSES_WRAP_PREFIX@##name
+
+#if defined(BUILDING_NCURSES)
+# define NCURSES_IMPEXP NCURSES_EXPORT_GENERAL_EXPORT
+#else
+# define NCURSES_IMPEXP NCURSES_EXPORT_GENERAL_IMPORT
 #endif
-#if !defined(NCURSES_EXPORT_VAR)
-#  define NCURSES_EXPORT_VAR(type) NCURSES_IMPEXP type
+
+#define NCURSES_WRAPPED_VAR(type,name) extern NCURSES_IMPEXP type NCURSES_PUBLIC_VAR(name)(void)
+
+#define NCURSES_EXPORT(type) NCURSES_IMPEXP type NCURSES_API
+#define NCURSES_EXPORT_VAR(type) NCURSES_IMPEXP type
+
+/*
+ * These symbols hide dllimport/dllexport, for compilers which care about it.
+ */
+#if defined(__CYGWIN__) || (defined(_WIN32) || defined(_WIN64))
+# if defined(NCURSES_STATIC)	/* "static" here only implies "not-a-DLL" */
+#   define NCURSES_EXPORT_GENERAL_IMPORT
+#   define NCURSES_EXPORT_GENERAL_EXPORT
+# else
+#   define NCURSES_EXPORT_GENERAL_IMPORT __declspec(dllimport)
+#   define NCURSES_EXPORT_GENERAL_EXPORT __declspec(dllexport)
+# endif
+# define NCURSES_API __cdecl
+#else
+# define NCURSES_EXPORT_GENERAL_IMPORT
+# define NCURSES_EXPORT_GENERAL_EXPORT
+# define NCURSES_API /* FIXME: __attribute__ ((cdecl)) is only available on x86 */
 #endif
 
 #endif /* NCURSES_DLL_H_incl */