2 files changed, 8 insertions, 8 deletions
diff --git a/converter/other/pnmtopalm/palm.h b/converter/other/pnmtopalm/palm.h
index 170c8cec..718a66cf 100644
--- a/converter/other/pnmtopalm/palm.h
+++ b/converter/other/pnmtopalm/palm.h
@@ -44,13 +44,9 @@ typedef struct {
 
 typedef Colormap_s * Colormap;
 
-int
-palmcolor_compare_indices(const void * const p1,
-                          const void * const p2);
+qsort_comparison_fn palmcolor_compare_indices;
 
-int
-palmcolor_compare_colors(const void * const p1,
-                         const void * const p2);
+qsort_comparison_fn palmcolor_compare_colors;
 
 Colormap
 palmcolor_build_custom_8bit_colormap(unsigned int const rows,
diff --git a/converter/other/pnmtopalm/palmcolormap.c b/converter/other/pnmtopalm/palmcolormap.c
index a1a1cec1..0f47558c 100644
--- a/converter/other/pnmtopalm/palmcolormap.c
+++ b/converter/other/pnmtopalm/palmcolormap.c
@@ -10,7 +10,9 @@
 int
 palmcolor_compare_indices(const void * const p1,
                           const void * const p2) {
-
+/*----------------------------------------------------------------------------
+   This is a 'qsort' collation function.
+-----------------------------------------------------------------------------*/
     if ((*((Color) p1) & 0xFF000000) < (*((Color) p2) & 0xFF000000))
         return -1;
     else if ((*((Color) p1) & 0xFF000000) > (*((Color) p2) & 0xFF000000))
@@ -24,7 +26,9 @@ palmcolor_compare_indices(const void * const p1,
 int
 palmcolor_compare_colors(const void * const p1,
                          const void * const p2) {
-
+/*----------------------------------------------------------------------------
+   This is a 'qsort' collation function.
+-----------------------------------------------------------------------------*/
     unsigned long const val1 = *((const unsigned long *) p1) & 0xFFFFFF;
     unsigned long const val2 = *((const unsigned long *) p2) & 0xFFFFFF;