[libpng16] Don't call png_icc_set_sRGB() when it's not compiled.
diff --git a/pngrutil.c b/pngrutil.c
index c9747fc..4d499aa 100644
--- a/pngrutil.c
+++ b/pngrutil.c
@@ -1512,12 +1512,12 @@
png_crc_finish(png_ptr, length);
finished = 1;
-# ifdef PNG_sRGB_SUPPORTED
+# if defined(PNG_sRGB_SUPPORTED) && PNG_sRGB_PROFILE_CHECKS >= 0
/* Check for a match against sRGB */
png_icc_set_sRGB(png_ptr,
&png_ptr->colorspace, profile,
png_ptr->zstream.adler);
-# endif
+# endif
/* Steal the profile for info_ptr. */
if (info_ptr != NULL)