Fix FTBFS with GCC6

Signed-off-by: Slávek Banko <slavek.banko@axis.cz>

digikam/libs/greycstoration/greycstoration.h

@@ -454,7 +454,7 @@ static void* greycstoration_thread(void *arg) {
       p.temporary = 0;
       p.counter = 0;
       p.tile = p.tile_border = p.thread = p.nb_threads = 0;
-      p.stop_request = false;
+      p.stop_request = 0;
       greycstoration_mutex_destroy(p);
     }
     p.is_running = false;

digikam/libs/lprof/cmslnr.cpp

@@ -247,11 +247,11 @@ LPGAMMATABLE cmsxEstimateGamma(LPSAMPLEDCURVE X, LPSAMPLEDCURVE Y, int nResultin
 	    /* maximum will not fall on exactly 100. */
 
 		if (!OneTry(X, Y, a))
-			return false;
+			return 0;
 
 		/* Got parameters. Compute maximum. */
 		e = a[1]* 255.0 + a[2];
-		if (e < 0) return false;
+		if (e < 0) return 0;
 		Max = pow(e, a[0]);
 
 
@@ -261,7 +261,7 @@ LPGAMMATABLE cmsxEstimateGamma(LPSAMPLEDCURVE X, LPSAMPLEDCURVE Y, int nResultin
 
 		/* Do the final fitting  */
 		if (!OneTry(XNorm, YNorm, a))
-				return false;
+				return 0;
 
 		/* Type 3 = IEC 61966-2.1 (sRGB) */
         /* Y = (aX + b)^Gamma | X >= d */

digikam/tdeioslave/digikamdates.cpp

@@ -199,7 +199,7 @@ void tdeio_digikamdates::special(const TQByteArray& data)
                          .arg(moEndStr, 2)
                          .arg(yrStart, 4)
                          .arg(moStartStr, 2),
-                         &values, false);
+                         &values, 0, false);
 
             TQ_LLONG     imageid;
             TQString     name;