quiet -Wmissing-prototypes warnings, and enable this warning by default for C with gcc.

helps for finding unused functions and making functions static, also did some minor code cleanup.

5 files changed, 17 insertions, 7 deletions

diff --git a/source/blender/blenlib/BLI_math_color.h b/source/blender/blenlib/BLI_math_color.h
index 7520f09fe95..6fe5d48d06e 100644
--- a/source/blender/blenlib/BLI_math_color.h
+++ b/source/blender/blenlib/BLI_math_color.h
@@ -67,6 +67,8 @@ void rgb_to_yuv(float r, float g, float b, float *ly, float *lu, float *lv);
 void rgb_to_ycc(float r, float g, float b, float *ly, float *lcb, float *lcr, int colorspace);
 void rgb_to_hsv(float r, float g, float b, float *lh, float *ls, float *lv);
 void rgb_to_hsv_v(const float rgb[3], float r_hsv[3]);
+void rgb_to_hsl(float r, float g, float b, float *lh, float *ls, float *ll);
+void rgb_to_hsl_v(const float rgb[3], float r_hsl[3]);
 void rgb_to_hsv_compat(float r, float g, float b, float *lh, float *ls, float *lv);
 void rgb_to_hsv_compat_v(const float rgb[3], float r_hsv[3]);
 void rgb_to_lab(float r, float g, float b, float *ll, float *la, float *lb);
diff --git a/source/blender/blenlib/intern/math_color.c b/source/blender/blenlib/intern/math_color.c
index b93597bf107..64851dbf12c 100644
--- a/source/blender/blenlib/intern/math_color.c
+++ b/source/blender/blenlib/intern/math_color.c
@@ -293,6 +293,12 @@ void rgb_to_hsl(float r, float g, float b, float *lh, float *ls, float *ll)
 	*ll = l;
 }
 
+/* convenience function for now */
+void rgb_to_hsl_v(const float rgb[3], float r_hsl[3])
+{
+	rgb_to_hsl(rgb[0], rgb[1], rgb[2], &r_hsl[0], &r_hsl[1], &r_hsl[2]);
+}
+
 void rgb_to_hsv_compat(float r, float g, float b, float *lh, float *ls, float *lv)
 {
 	float orig_h = *lh;
diff --git a/source/blender/blenlib/intern/md5.c b/source/blender/blenlib/intern/md5.c
index a521d0e523b..4a09afe2e3d 100644
--- a/source/blender/blenlib/intern/md5.c
+++ b/source/blender/blenlib/intern/md5.c
@@ -2,6 +2,8 @@
  *  \ingroup imbuf
  */
 
+#include "BLI_md5.h"  /* own include */
+
 /* md5.c - Functions to compute MD5 message digest of files or memory blocks
    according to the definition of MD5 in RFC 1321 from April 1992.
    Copyright (C) 1995 Software Foundation, Inc.
diff --git a/source/blender/blenlib/intern/pbvh.c b/source/blender/blenlib/intern/pbvh.c
index 22597c9f8e6..d3d8d371f60 100644
--- a/source/blender/blenlib/intern/pbvh.c
+++ b/source/blender/blenlib/intern/pbvh.c
@@ -487,7 +487,7 @@ static void build_leaf(PBVH *bvh, int node_index, BBC *prim_bbc,
 
 /* Return zero if all primitives in the node can be drawn with the
  * same material (including flat/smooth shading), non-zerootherwise */
-int leaf_needs_material_split(PBVH *bvh, int offset, int count)
+static int leaf_needs_material_split(PBVH *bvh, int offset, int count)
 {
 	int i, prim;
 
diff --git a/source/blender/blenlib/intern/voronoi.c b/source/blender/blenlib/intern/voronoi.c
index 80a4da5cace..3030e54eb78 100644
--- a/source/blender/blenlib/intern/voronoi.c
+++ b/source/blender/blenlib/intern/voronoi.c
@@ -480,7 +480,7 @@ static void voronoi_removeParabola(VoronoiProcess *process, VoronoiEvent *event)
 	voronoi_checkCircle(process, p2);
 }
 
-void voronoi_finishEdge(VoronoiProcess *process, VoronoiParabola *parabola)
+static void voronoi_finishEdge(VoronoiProcess *process, VoronoiParabola *parabola)
 {
 	float mx;
 
@@ -503,12 +503,12 @@ void voronoi_finishEdge(VoronoiProcess *process, VoronoiParabola *parabola)
 	MEM_freeN(parabola);
 }
 
-void voronoi_clampEdgeVertex(int width, int height, float *coord, float *other_coord)
+static void voronoi_clampEdgeVertex(int width, int height, float *coord, float *other_coord)
 {
 	const float corners[4][2] = {{0.0f, 0.0f},
-								 {width - 1, 0.0f},
-								 {width - 1, height - 1},
-								 {0.0f, height - 1}};
+	                             {width - 1, 0.0f},
+	                             {width - 1, height - 1},
+	                             {0.0f, height - 1}};
 	int i;
 
 	if (IN_RANGE_INCL(coord[0], 0, width - 1) && IN_RANGE_INCL(coord[1], 0, height - 1)) {
@@ -541,7 +541,7 @@ void voronoi_clampEdgeVertex(int width, int height, float *coord, float *other_c
 	}
 }
 
-void voronoi_clampEdges(ListBase *edges, int width, int height, ListBase *clamped_edges)
+static void voronoi_clampEdges(ListBase *edges, int width, int height, ListBase *clamped_edges)
 {
 	VoronoiEdge *edge;