Avoid compiler warnings on cairo build

* src/image.c (jpeg_load_body) [USE_CAIRO]: #ifdef out USE_SAFE_ALLOCA
and SAFE_FREE.
* src/xterm.c (x_composite_image) [USE_CAIRO]: #ifdef out unused function.
(x_draw_image_glyph_string) [USE_CAIRO]: #ifdef out unused variable pixmap.

2 files changed, 7 insertions, 1 deletions

diff --git a/src/image.c b/src/image.c
index 6e415ef1f70..c1a23edefce 100644
--- a/src/image.c
+++ b/src/image.c
@@ -7043,7 +7043,9 @@ jpeg_load_body (struct frame *f, struct image *img,
      colors generated, and mgr->cinfo.colormap is a two-dimensional array
      of color indices in the range 0..mgr->cinfo.actual_number_of_colors.
      No more than 255 colors will be generated.  */
+#ifndef USE_CAIRO
   USE_SAFE_ALLOCA;
+#endif
   {
     if (mgr->cinfo.out_color_components > 2)
       ir = 0, ig = 1, ib = 2;
@@ -7127,8 +7129,8 @@ jpeg_load_body (struct frame *f, struct image *img,
 
   /* Put ximg into the image.  */
   image_put_x_image (f, img, ximg, 0);
-#endif
   SAFE_FREE ();
+#endif
   return 1;
 }
 
diff --git a/src/xterm.c b/src/xterm.c
index b9f4a1fc303..0facb524549 100644
--- a/src/xterm.c
+++ b/src/xterm.c
@@ -2989,6 +2989,7 @@ x_draw_glyph_string_box (struct glyph_string *s)
 }
 
 
+#ifndef USE_CAIRO
 static void
 x_composite_image (struct glyph_string *s, Pixmap dest,
                    int srcX, int srcY, int dstX, int dstY,
@@ -3028,6 +3029,7 @@ x_composite_image (struct glyph_string *s, Pixmap dest,
              srcX, srcY,
              width, height, dstX, dstY);
 }
+#endif  /* !USE_CAIRO */
 
 
 /* Draw foreground of image glyph string S.  */
@@ -3335,7 +3337,9 @@ x_draw_image_glyph_string (struct glyph_string *s)
   int box_line_hwidth = eabs (s->face->box_line_width);
   int box_line_vwidth = max (s->face->box_line_width, 0);
   int height;
+#ifndef USE_CAIRO
   Pixmap pixmap = None;
+#endif
 
   height = s->height;
   if (s->slice.y == 0)