Fix compiler warnings in pdf/

4 files changed, 5 insertions, 14 deletions

diff --git a/pdf/pdf_check.c b/pdf/pdf_check.c
index 1b0619142..e699210ab 100644
--- a/pdf/pdf_check.c
+++ b/pdf/pdf_check.c
@@ -1,4 +1,4 @@
-/* Copyright (C) 2019-2022 Artifex Software, Inc.
+/* Copyright (C) 2019-2023 Artifex Software, Inc.
    All Rights Reserved.
 
    This software is provided AS-IS with no warranty, either express or
@@ -412,7 +412,7 @@ static int pdfi_check_XObject(pdf_context *ctx, pdf_dict *xobject, pdf_dict *pag
 
                 code = pdfi_dict_knownget_type(ctx, xobject, "Resources", PDF_DICT, (pdf_obj **)&resource_dict);
                 if (code > 0) {
-                    if (ctx->loop_detection && pdf_object_num(resource_dict) != 0) {
+                    if (ctx->loop_detection && pdf_object_num((pdf_obj *)resource_dict) != 0) {
                         code = pdfi_loop_detector_add_object(ctx, resource_dict->object_num);
                         if (code < 0)
                             goto transparency_exit;
diff --git a/pdf/pdf_deref.c b/pdf/pdf_deref.c
index 52ae93754..632b6a9b1 100644
--- a/pdf/pdf_deref.c
+++ b/pdf/pdf_deref.c
@@ -1,4 +1,4 @@
-/* Copyright (C) 2020-2022 Artifex Software, Inc.
+/* Copyright (C) 2020-2023 Artifex Software, Inc.
    All Rights Reserved.
 
    This software is provided AS-IS with no warranty, either express or
@@ -969,7 +969,6 @@ static int pdfi_dereference_main(pdf_context *ctx, uint64_t obj, uint64_t gen, p
             if (code < 0 || *object == NULL)
                 goto error;
         } else {
-            pdf_c_stream *SubFile_stream = NULL;
 #if CACHE_STATISTICS
             ctx->misses++;
 #endif
diff --git a/pdf/pdf_font3.c b/pdf/pdf_font3.c
index 34fba106b..af494c665 100644
--- a/pdf/pdf_font3.c
+++ b/pdf/pdf_font3.c
@@ -1,4 +1,4 @@
-/* Copyright (C) 2019-2022 Artifex Software, Inc.
+/* Copyright (C) 2019-2023 Artifex Software, Inc.
    All Rights Reserved.
 
    This software is provided AS-IS with no warranty, either express or
@@ -30,14 +30,6 @@
 #include "gsuid.h"          /* For no_UniqueID */
 #include "gsutil.h"        /* For gs_next_ids() */
 
-static void pdfi_type3_copy_color(gs_gstate_color *src, gs_gstate_color *dest)
-{
-    *dest->ccolor = *src->ccolor;
-    *dest->dev_color = *src->dev_color;
-    dest->color_space = src->color_space;
-    dest->effective_opm = src->effective_opm;
-}
-
 static int
 pdfi_type3_build_char(gs_show_enum * penum, gs_gstate * pgs, gs_font * pfont,
                      gs_char chr, gs_glyph glyph)
diff --git a/pdf/pdf_xref.c b/pdf/pdf_xref.c
index db6f725e8..af3f71f31 100644
--- a/pdf/pdf_xref.c
+++ b/pdf/pdf_xref.c
@@ -839,7 +839,7 @@ static int read_xref(pdf_context *ctx, pdf_c_stream *s)
 {
     int code = 0;
     pdf_dict *d = NULL;
-    uint64_t size = 0, max_obj = 0;
+    uint64_t max_obj = 0;
     int64_t num;
     int obj_num;
     bool known = false;