Index: src/core/command.c
===================================================================
--- src/core/command.c	(révision 2434)
+++ src/core/command.c	(copie de travail)
@@ -358,7 +358,7 @@
 	norm = atof(word[2]);
 	if (readfits(word[1], &fit, NULL))
 		return -1;
-	fdiv(&gfit, &fit, norm);
+	siril_fdiv(&gfit, &fit, norm);
 	adjust_cutoff_from_updated_gfit();
 	redraw(com.cvport, REMAP_ALL);
 	redraw_previews();
Index: src/core/proto.h
===================================================================
--- src/core/proto.h	(révision 2434)
+++ src/core/proto.h	(copie de travail)
@@ -181,9 +181,8 @@
 int	imoper(fits *a, fits *b, char oper);
 int sub_background(fits* image, fits* background, int layer);
 int 	addmax(fits *a, fits *b);
-int	fdiv(fits *a, fits *b, float scalar);
-int ndiv(fits *a, fits *b);
-int fmul(fits *a, float coeff);
+int	siril_fdiv(fits *a, fits *b, float scalar);
+int siril_ndiv(fits *a, fits *b);
 double 	gaussienne(double sigma, int size, double *gauss);
 int 	unsharp(fits *,double sigma, double mult, gboolean verbose);
 int	crop(fits *fit, rectangle *bounds);
Index: src/core/siril.c
===================================================================
--- src/core/siril.c	(révision 2434)
+++ src/core/siril.c	(copie de travail)
@@ -260,8 +260,8 @@
 	return 0;
 }
 
-/* If fdiv is ok, function returns 0. If overflow, fdiv returns 1*/
-int fdiv(fits *a, fits *b, float coef) {
+/* If siril_fdiv is ok, function returns 0. If overflow, siril_fdiv returns 1*/
+int siril_fdiv(fits *a, fits *b, float coef) {
 	int i, layer;
 	int retvalue = 0;
 	double temp;
@@ -289,7 +289,7 @@
 
 /* normalized division a/b, stored in a, with max value equal to the original
  * max value of a, for each layer. */
-int ndiv(fits *a, fits *b) {
+int siril_ndiv(fits *a, fits *b) {
 	double *div;
 	int layer, i, nb_pixels;
 	if (a->rx != b->rx || a->ry != b->ry || a->naxes[2] != b->naxes[2]) {
@@ -489,7 +489,7 @@
 	unsharp(&fit, sigma, 0, FALSE);
 	soper(&fit, (double) level, OPER_ADD);
 	nozero(&fit, 1);
-	fdiv(a, &fit, level);
+	siril_fdiv(a, &fit, level);
 	soper(a, (double) coeff, OPER_MUL);
 	clearfits(&fit);
 	invalidate_stats_from_fit(a);
@@ -824,7 +824,7 @@
 	}
 
 	if (com.preprostatus & USE_FLAT) {
-		fdiv(brut, flat, level);
+		siril_fdiv(brut, flat, level);
 	}
 
 	return 0;
Index: src/gui/callbacks.c
===================================================================
--- src/gui/callbacks.c	(révision 2434)
+++ src/gui/callbacks.c	(copie de travail)
@@ -4775,7 +4775,7 @@
 		siril_log_message(_("Subtraction done ...\n"));
 		break;
 	case 1:
-		if (ndiv(&gfit, &background_fit)) {
+		if (siril_ndiv(&gfit, &background_fit)) {
 			set_cursor_waiting(FALSE);
 			return;
 		}