* cygheap.cc (init_cygheap::manage_console_count): Revert previous change.

Handle this a different way.
* external.cc (cygwin_internal): Accommodate extra hook_or_detect_cygwin
argument.
* hookapi.cc (cygwin_internal): Fill in subsys variable with the subsystem of
the executable.
* spawn.cc (av::iscui): New variable.
(spawn_guts): Hide window when we don't have a console and this isn't
NT/XP/2003.
(av::fixup): Set iscui flag.
* winsup.h (hook_or_detect_cygwin): Accommodate extra argument.

winsup/cygwin/ChangeLog

@@ -1,3 +1,17 @@
+2005-12-21  Christopher Faylor  <cgf@timesys.com>
+
+	* cygheap.cc (init_cygheap::manage_console_count): Revert previous
+	change.  Handle this a different way.
+	* external.cc (cygwin_internal): Accommodate extra
+	hook_or_detect_cygwin argument.
+	* hookapi.cc (cygwin_internal): Fill in subsys variable with the
+	subsystem of the executable.
+	* spawn.cc (av::iscui): New variable.
+	(spawn_guts): Hide window when we don't have a console and this isn't
+	NT/XP/2003.
+	(av::fixup): Set iscui flag.
+	* winsup.h (hook_or_detect_cygwin): Accommodate extra argument.
+
 2005-12-21  Christopher Faylor  <cgf@timesys.com>
 
 	* cygheap.cc (init_cygheap::manage_console_count): Don't call

winsup/cygwin/cygheap.cc

@@ -96,8 +96,7 @@ init_cygheap::manage_console_count (const char *something, int amount, bool avoi
   console_count += amount;
   debug_printf ("%s: console_count %d, amount %d, %s, avoid_freeing_console %d",
 		something, console_count, amount, myctty (), avoid_freeing_console);
-  if (wincap.pty_needs_alloc_console () && !avoid_freeing_console && amount <= 0
-      && !console_count && myself->ctty == -1)
+  if (!avoid_freeing_console && amount <= 0 && !console_count && myself->ctty == -1)
     {
       FreeConsole ();
       debug_printf ("freed console");

winsup/cygwin/external.cc

@@ -295,7 +295,8 @@ cygwin_internal (cygwin_getinfo_types t, ...)
 	{
 	  const char *name = va_arg (arg, const char *);
 	  const void *hookfn = va_arg (arg, const void *);
-	  return (unsigned long) hook_or_detect_cygwin (name, hookfn);
+	  WORD subsys;
+	  return (unsigned long) hook_or_detect_cygwin (name, hookfn, subsys);
 	}
       case CW_ARGV:
 	{

winsup/cygwin/hookapi.cc

@@ -151,7 +151,7 @@ makename (const char *name, char *&buf, int& i, int inc)
 
 // Top level routine to find the EXE's imports, and redirect them
 void *
-hook_or_detect_cygwin (const char *name, const void *fn)
+hook_or_detect_cygwin (const char *name, const void *fn, WORD& subsys)
 {
   HMODULE hm = fn ? GetModuleHandle (NULL) : (HMODULE) name;
   PIMAGE_NT_HEADERS pExeNTHdr = PEHeaderFromHModule (hm);
@@ -159,6 +159,8 @@ hook_or_detect_cygwin (const char *name, const void *fn)
   if (!pExeNTHdr)
     return false;
 
+  subsys =  pExeNTHdr->OptionalHeader.Subsystem;
+
   DWORD importRVA = pExeNTHdr->OptionalHeader.DataDirectory
 		      [IMAGE_DIRECTORY_ENTRY_IMPORT].VirtualAddress;
   if (!importRVA)

winsup/cygwin/spawn.cc

@@ -294,8 +294,9 @@ class av
  public:
   int argc;
   bool win16_exe;
-  av (): argv (NULL) {}
-  av (int ac_in, const char * const *av_in) : calloced (0), argc (ac_in), win16_exe (false)
+  bool iscui;
+  av (): argv (NULL), iscui (false) {}
+  av (int ac_in, const char * const *av_in) : calloced (0), argc (ac_in), win16_exe (false), iscui (false)
   {
     argv = (char **) cmalloc (HEAP_1_ARGV, (argc + 5) * sizeof (char *));
     memcpy (argv, av_in, (argc + 1) * sizeof (char *));
@@ -578,6 +579,11 @@ spawn_guts (const char * prog_arg, const char *const *argv,
   si.hStdOutput = handle (1, 1); /* Get output handle */
   si.hStdError = handle (2, 1); /* Get output handle */
   si.cb = sizeof (si);
+  if (!wincap.pty_needs_alloc_console () && newargv.iscui && !GetConsoleCP ())
+    {
+      si.dwFlags |= STARTF_USESHOWWINDOW;
+      si.wShowWindow = SW_HIDE;
+    }
 
   int flags = GetPriorityClass (hMainProc);
   sigproc_printf ("priority class %d", flags);
@@ -1060,11 +1066,13 @@ av::fixup (child_info_types chtype, const char *prog_arg, path_conv& real_path,
 	  }
 	if (buf[0] == 'M' && buf[1] == 'Z')
 	  {
+	    WORD subsys;
 	    unsigned off = (unsigned char) buf[0x18] | (((unsigned char) buf[0x19]) << 8);
 	    win16_exe = off < sizeof (IMAGE_DOS_HEADER);
 	    if (!win16_exe)
-	      real_path.set_cygexec (!!hook_or_detect_cygwin (buf, NULL));
+	      real_path.set_cygexec (!!hook_or_detect_cygwin (buf, NULL, subsys));
 	    UnmapViewOfFile (buf);
+	    iscui = subsys == IMAGE_SUBSYSTEM_WINDOWS_CUI;
 	    break;
 	  }
       }

winsup/cygwin/winsup.h

@@ -250,7 +250,7 @@ extern "C" int __stdcall strcasematch (const char *s1, const char *s2) __attribu
 extern "C" int __stdcall strncasematch (const char *s1, const char *s2, size_t n) __attribute__ ((regparm(3)));
 extern "C" char *__stdcall strcasestr (const char *searchee, const char *lookfor) __attribute__ ((regparm(2)));
 
-void *hook_or_detect_cygwin (const char *, const void *) __attribute__ ((regparm (2)));
+void *hook_or_detect_cygwin (const char *, const void *, WORD&) __attribute__ ((regparm (3)));
 
 /* Time related */
 void __stdcall totimeval (struct timeval *, FILETIME *, int, int);