3 files changed, 9 insertions, 9 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;
 
diff --git a/converter/other/pnmtopalm/pnmtopalm.c b/converter/other/pnmtopalm/pnmtopalm.c
index 6d34bb9b..67a17e54 100644
--- a/converter/other/pnmtopalm/pnmtopalm.c
+++ b/converter/other/pnmtopalm/pnmtopalm.c
@@ -497,7 +497,7 @@ writeDummy() {
    Write a dummy Palm Bitmap header.  This is a 16 byte header, of
    type version 1 and with (only) pixelSize set to 0xFF.
 
-   An old viewer will see this as invalid due to the pixelSize, and stop
+   An old viewer will see this as invalid because of the pixelSize, and stop
    reading the stream.  A new viewer will recognize this for what it is
    (a dummy header designed to stop old viewers from reading further in
    the stream) and continue reading the stream.  Presumably, what follows