configure: Added option to disable Motif WM Hints support

The old behaviour was to expect the user to go modify manually a source
file which is not a great idea because that's typically the kind of things
in charge of the configure script.

As a side effect, we can now use an automake conditional to avoid compiling
the source file in charge of the feature when not used, instead of trying
to compile an empty-looking file.

Signed-off-by: Christophe CURIS <christophe.curis@free.fr>

src/Makefile.am

@@ -52,8 +52,6 @@ wmaker_SOURCES = 	\
 	misc.h \
 	monitor.c \
 	monitor.h \
-	motif.c \
-	motif.h \
 	moveres.c \
 	pixmap.c \
 	pixmap.h \
@@ -110,6 +108,10 @@ wmaker_SOURCES = 	\
 	wsmap.c \
 	wsmap.h
 
+if USE_MWM_HINTS
+wmaker_SOURCES += motif.h motif.c
+endif
+
 if WM_OSDEP_BSD
 wmaker_SOURCES += osdep_bsd.c
 endif

src/motif.c

@@ -21,8 +21,6 @@
 
 #include "wconfig.h"
 
-#ifdef USE_MWM_HINTS
-
 #include <X11/Xlib.h>
 #include <X11/Xutil.h>
 #include <stdlib.h>
@@ -200,5 +198,3 @@ void wMWMCheckClientHints(WWindow *wwin)
 	if (getMWMHints(wwin->client_win, &hints))
 		setupMWMHints(wwin, &hints);
 }
-
-#endif	/* USE_MWM_HINTS */

src/wconfig.h.in

@@ -36,9 +36,6 @@
 /* If you want animations for iconification, shading, icon arrangement etc. */
 #define ANIMATIONS
 
-/* support for Motif window manager (mwm) window hints */
-#define USE_MWM_HINTS
-
 /*
  * Undefine BALLOON_TEXT if you don't want balloons for showing extra
  * information, like window titles that are not fully visible.