From 4987fe3e933060a764d58c3a33b6f41a77ec8b3a Mon Sep 17 00:00:00 2001
From: Dirk Lemstra <dirk@git.imagemagick.org>
Date: Sat, 1 Jul 2017 15:46:24 +0200
Subject: [PATCH] Fixed compiler warnings.

---
 MagickCore/blob.c |  3 ++-
 coders/dcm.c      | 21 +--------------------
 2 files changed, 3 insertions(+), 21 deletions(-)

diff --git a/MagickCore/blob.c b/MagickCore/blob.c
index ff96f3da6..2f86648a2 100644
--- a/MagickCore/blob.c
+++ b/MagickCore/blob.c
@@ -212,11 +212,12 @@ static int
 %
 */
 MagickExport CustomStreamInfo *AcquireCustomStreamInfo(
-  ExceptionInfo *exception)
+  ExceptionInfo *magick_unused(exception))
 {
   CustomStreamInfo
     *custom_stream;
 
+  magick_unreferenced(exception);
   custom_stream=(CustomStreamInfo *) AcquireMagickMemory(
     sizeof(*custom_stream));
   if (custom_stream == (CustomStreamInfo *) NULL)
diff --git a/coders/dcm.c b/coders/dcm.c
index 04584d505..414956b0e 100644
--- a/coders/dcm.c
+++ b/coders/dcm.c
@@ -3753,26 +3753,16 @@ static Image *ReadDCMImage(const ImageInfo *image_info,ExceptionInfo *exception)
       int
         c;
 
-      size_t
-        length;
-
-      unsigned int
-        tag;
-
       /*
         Read offset table.
       */
       for (i=0; i < (ssize_t) stream_info->remaining; i++)
         (void) ReadBlobByte(image);
-      tag=(ReadBlobLSBShort(image) << 16) | ReadBlobLSBShort(image);
-      (void) tag;
+      (void)((ReadBlobLSBShort(image) << 16) | ReadBlobLSBShort(image));
       length=(size_t) ReadBlobLSBLong(image);
       stream_info->offset_count=length >> 2;
       if (stream_info->offset_count != 0)
         {
-          MagickOffsetType
-            offset;
-
           stream_info->offsets=(ssize_t *) AcquireQuantumMemory(
             stream_info->offset_count,sizeof(*stream_info->offsets));
           if (stream_info->offsets == (ssize_t *) NULL)
@@ -3867,9 +3857,6 @@ static Image *ReadDCMImage(const ImageInfo *image_info,ExceptionInfo *exception)
       QuantumAny
         range;
 
-      size_t
-        length;
-
       /*
         Compute pixel scaling table.
       */
@@ -3883,9 +3870,6 @@ static Image *ReadDCMImage(const ImageInfo *image_info,ExceptionInfo *exception)
     }
   if (image->compression == RLECompression)
     {
-      size_t
-        length;
-
       unsigned int
         tag;
 
@@ -3900,9 +3884,6 @@ static Image *ReadDCMImage(const ImageInfo *image_info,ExceptionInfo *exception)
       stream_info->offset_count=length >> 2;
       if (stream_info->offset_count != 0)
         {
-          MagickOffsetType
-            offset;
-
           stream_info->offsets=(ssize_t *) AcquireQuantumMemory(
             stream_info->offset_count,sizeof(*stream_info->offsets));
           if (stream_info->offsets == (ssize_t *) NULL)
-- 
2.40.0