Add gimpcolorspace object.

2000-01-04  Tor Lillqvist  <tml@iki.fi>

* libgimp/makefile.{cygwin.msc}: Add gimpcolorspace object.

* libgimp/gimp.def: Add functions from it.

Fixes from Hans Breuer:

* app/datafiles.c: redefine the executable flag for Win32
to _S_IREAD, to get _all_ files from the plug-in dirs as
executables (including scripts)

* app/main.c: Win32-specific changes to allow building Gimp as a
console application, with all its benefits (like inheriting the
console), but hide it if the user doesn't want it. Also, if stdout
goes to a console, give the user a chance to read the help or
version messages. (tml: I am not convinced that it is better to
build gimp as a console application, but let's try it this way for
a while.)

* app/makefile.{cygwin,msc}: Build as console application, and
link with shell32 library.

* app/paint_core.c (paint_core_motion): Pass the value of a call
to the function gimage_active_drawable() to the paint_func,
instead of just passing the address of gimage_active_drawable...

(tml: This code is only called when the TOOL_TRACES_ON_WINDOW flag
is on, and only the clone tool sets that, and the clone tool's
paint_func doesn't use the drawable argument, so this hasn't
caused any trouble.)

* app/plug_in.c: On Win32, to support scripts, use new function
xspawn() instead of _spawnv. Add some more code to properly kill
plug-ins.

* libgimp/color_display.h: Add G_MODULE_EXPORT declarations.

libgimpbase/gimpdatafiles.c

@@ -39,10 +39,10 @@
 #define S_ISDIR(m) (((m) & _S_IFMT) == _S_IFDIR)
 #define S_ISREG(m) (((m) & _S_IFMT) == _S_IFREG)
 #endif
-#ifndef S_IXUSR
-#define S_IXUSR _S_IEXEC
-#endif
-#endif
+/* (Re)define S_IXUSR as _S_IREAD to get scripts, too. */
+#undef S_IXUSR
+#define S_IXUSR _S_IREAD
+#endif /* G_OS_WIN32 */
 
 #include "datafiles.h"
 #include "errors.h"