-/* System description file for Windows NT.
+/* System description file for Windows 9x and NT.
Copyright (C) 1993, 1994, 1995 Free Software Foundation, Inc.
This file is part of GNU Emacs.
/* Synched up with: FSF 19.31. */
-#ifndef WINDOWSNT
-#define WINDOWSNT
-#endif
-
-#ifndef DOS_NT
-#define DOS_NT /* MSDOS or WINDOWSNT */
+/* Capsule summary of different preprocessor flags:
+
+1. Keep in mind that there are two possible OS environments we are dealing
+ with -- Cygwin and Native Windows. Cygwin provides a POSIX emulation
+ layer on top of MS Windows -- in particular, providing the file-system,
+ process, tty, and signal semantics that are part of a modern, standard
+ Unix operating system. MS Windows also provides these services, but
+ through their own API, called Win32. When compiling in a Cygwin
+ environment, the Win32 API's are also available, and in fact are used
+ to do native GUI programming.
+
+2. There are two windowing environments we can target XEmacs for when
+ running under MS Windows -- Windows native, and X. (It may seem strange
+ to write an X application under Windows, but there are in fact many X
+ servers out there running on Windows, and as far as I know there is no
+ real (or at least, that works well) networking Window-system extension
+ under MS Windows. Furthermore, if you're porting a Unix application to
+ Windows and use Cygwin to assist you, it might seem natural to use an
+ X server to avoid having to port all the code to Windows.) For XEmacs,
+ there are various reasons people could come up with for why we would
+ want to keep maintaining X Windows under MS Windows support.
+
+That gives us four possible build environments. I (Ben) build
+regularly on fully-native-everything, Andy builds on Cygwin + MS
+Windows + X Windows for windowing.
+
+The build flags used for these divisions are:
+
+CYGWIN -- for Cygwin-only stuff.
+WIN32_NATIVE -- Win32 native OS-level stuff (files, process, etc.).
+HAVE_X_WINDOWS -- for X Windows (regardless of whether under MS Win)
+HAVE_MS_WINDOWS -- MS Windows native windowing system (anything related to
+ the appearance of the graphical screen).
+
+Finally, there's also the MINGW build environment, which uses GCC
+\(similar to Cygwin), but native MS Windows libraries rather than a
+POSIX emulation layer (the Cygwin approach). This environment defines
+WIN32_NATIVE, but also defines MINGW, which is used mostly because
+uses its own include files (related to Cygwin), which have a few
+things messed up.
+
+
+Formerly, we had a whole host of flags. Here's the conversion, for porting
+code from GNU Emacs and such:
+
+
+WINDOWSNT -> WIN32_NATIVE
+WIN32 -> WIN32_NATIVE
+_WIN32 -> WIN32_NATIVE
+HAVE_WIN32 -> WIN32_NATIVE
+DOS_NT -> WIN32_NATIVE
+HAVE_NTGUI -> WIN32_NATIVE, unless it ends up already bracketed by this
+HAVE_FACES -> always true
+MSDOS -> determine whether this code is really specific to MS-DOS (and not
+ Windows -- e.g. DJGPP code); if so, delete the code; otherwise,
+ convert to WIN32_NATIVE (we do not support MS-DOS w/DOS Extender
+ under XEmacs)
+
+__CYGWIN__ -> CYGWIN
+__CYGWIN32__ -> CYGWIN
+__MINGW32__ -> MINGW
+
+*/
+
+/* Identify ourselves */
+#ifndef WIN32_NATIVE
+#define WIN32_NATIVE
#endif
/* In case non-Microsoft compiler is used, we fake _MSC_VER */
#define SIZEOF_SHORT 2
#define SIZEOF_INT 4
#define SIZEOF_LONG 4
-#define SIZEOF_LONG_LONG 8
+#define SIZEOF_LONG_LONG 0
#define SIZEOF_VOID_P 4
/* NOMULTIPLEJOBS should be defined if your system's shell
#define HAVE_H_ERRNO
#define HAVE_STRUCT_UTIMBUF
-#ifdef HAVE_NTGUI
-#define HAVE_WINDOW_SYSTEM
-#define HAVE_FACES
-#endif
-
-#define HAVE_STRCASECMP
-
/* Compatibility macros. Some used to be routines in nt.c */
#define strcasecmp(x,y) _stricmp(x,y)
#define random() (rand() << 15 | rand())
/* We now have emulation for some signals */
#define HAVE_SIGHOLD
-#define sigset(s,h) msw_sigset(s,h)
-#define sighold(s) msw_sighold(s)
-#define sigrelse(s) msw_sigrelse(s)
-#define sigpause(s) msw_sigpause(s)
+#define sigset(s,h) mswindows_sigset(s,h)
+#define sighold(s) mswindows_sighold(s)
+#define sigrelse(s) mswindows_sigrelse(s)
+#define sigpause(s) mswindows_sigpause(s)
/* Defines that we need that aren't in the standard signal.h */
#define SIGHUP 1 /* Hang up */
#define SIGALRM 14 /* Alarm */
#define SIGPROF 29 /* Profiling timer exp */
-/* For integration with MSDOS support. */
-#define getdisk() (_getdrive () - 1)
-#define getdefdir(_drv, _buf) _getdcwd (_drv, _buf, MAXPATHLEN)
-
/* Defines size_t and alloca (). */
#include <malloc.h>
#define _WIN32_WINNT 0x0400
#endif
#endif
+
+/* Force the various NT 4 structures and constants to be included; we're
+ careful not to call (or even link with) functions not in NT 3.51 when
+ running on 3.51, but when running on NT 4 or Win9x, we use the later
+ functions, and need their headers. */
+/* The VC++ (5.0, at least) headers treat WINVER non-existent as 0x0400 */
+#if defined (WINVER) && WINVER < 0x0400
+# undef WINVER
+# define WINVER 0x0400
+#endif
+
+/* MSVC 6.0 has a mechanism to declare functions which never return */
+#if (_MSC_VER >= 1200)
+#define DOESNT_RETURN __declspec(noreturn) void
+#define DECLARE_DOESNT_RETURN(decl) __declspec(noreturn) extern void decl
+#define DECLARE_DOESNT_RETURN_GCC_ATTRIBUTE_SYNTAX_SUCKS(decl,str,idx) \
+ __declspec(noreturn) extern void decl PRINTF_ARGS(str,idx)
+#endif /* MSVC 6.0 */
+
+#define CORRECT_DIR_SEPS(s) \
+ do { if ('/' == DIRECTORY_SEP) dostounix_filename (s); \
+ else unixtodos_filename (s); \
+ } while (0)
projects / chise / xemacs-chise.git.1 / blobdiff