From 6f6d0d201d958a777b12ae4a7aafdc8fa441a27a Mon Sep 17 00:00:00 2001
From: jules <jules@rawmaterialsoftware.com>
Date: Sat, 6 Sep 2014 09:26:54 +0100
Subject: [PATCH] Avoided a couple of obscure gcc warnings

---
 modules/juce_graphics/image_formats/juce_PNGLoader.cpp | 7 ++++---
 modules/juce_graphics/image_formats/pnglib/pngread.c   | 2 +-
 2 files changed, 5 insertions(+), 4 deletions(-)

diff --git a/modules/juce_graphics/image_formats/juce_PNGLoader.cpp b/modules/juce_graphics/image_formats/juce_PNGLoader.cpp
index 4ee36abaae..636b293869 100644
--- a/modules/juce_graphics/image_formats/juce_PNGLoader.cpp
+++ b/modules/juce_graphics/image_formats/juce_PNGLoader.cpp
@@ -488,12 +488,13 @@ bool PNGImageFormat::writeImageToStream (const Image& image, OutputStream& out)
                   PNG_COMPRESSION_TYPE_BASE,
                   PNG_FILTER_TYPE_BASE);
 
-    HeapBlock <uint8> rowData ((size_t) width * 4);
+    HeapBlock<uint8> rowData ((size_t) width * 4);
 
     png_color_8 sig_bit;
-    sig_bit.red = 8;
+    sig_bit.red   = 8;
     sig_bit.green = 8;
-    sig_bit.blue = 8;
+    sig_bit.blue  = 8;
+    sig_bit.gray  = 0;
     sig_bit.alpha = 8;
     png_set_sBIT (pngWriteStruct, pngInfoStruct, &sig_bit);
 
diff --git a/modules/juce_graphics/image_formats/pnglib/pngread.c b/modules/juce_graphics/image_formats/pnglib/pngread.c
index 85a7d61630..f7bde9620f 100644
--- a/modules/juce_graphics/image_formats/pnglib/pngread.c
+++ b/modules/juce_graphics/image_formats/pnglib/pngread.c
@@ -1026,7 +1026,7 @@ png_read_png(png_structrp png_ptr, png_inforp info_ptr,
    if ((transforms & PNG_TRANSFORM_SHIFT)
        && png_get_valid(png_ptr, info_ptr, PNG_INFO_sBIT))
    {
-      png_color_8p sig_bit;
+      png_color_8p sig_bit = 0;
 
       png_get_sBIT(png_ptr, info_ptr, &sig_bit);
       png_set_shift(png_ptr, sig_bit);