diff --git a/MozillaThunderbird.changes b/MozillaThunderbird.changes
index 9b794a7..529b306 100644
--- a/MozillaThunderbird.changes
+++ b/MozillaThunderbird.changes
@@ -1,3 +1,13 @@
+-------------------------------------------------------------------
+Tue May 24 18:28:31 UTC 2016 - badshah400@gmail.com
+
+- Add patches to fix building with gcc >= 6:
+  + mozilla-gcc6.patch: patch taken from fedora's git and is
+    essentially identical to upstream firefox patch:
+    https://hg.mozilla.org/mozilla-central/rev/55212130f19d.
+  + mozilla-flexible-array-member-in-union.patch: patch taken
+    from upstream bmo#1272649.
+
 -------------------------------------------------------------------
 Thu May 12 15:21:45 UTC 2016 - dimstar@opensuse.org
 
diff --git a/MozillaThunderbird.spec b/MozillaThunderbird.spec
index ff222af..444c43b 100644
--- a/MozillaThunderbird.spec
+++ b/MozillaThunderbird.spec
@@ -21,6 +21,8 @@
 %define update_channel release
 %define releasedate 2016050700
 
+%define gcc_ver %(rpm -q --whatprovides --qf '%%{version}' gcc)
+
 %if %suse_version > 1310
 %define gstreamer_ver 1.0
 %define gstreamer 1
@@ -103,6 +105,8 @@ Patch2:         mozilla-nongnome-proxies.patch
 Patch3:         mozilla-kde.patch
 Patch4:         mozilla-develdirs.patch
 Patch5:         mozilla-no-stdcxx-check.patch
+Patch6:         mozilla-gcc6.patch
+Patch7:         mozilla-flexible-array-member-in-union.patch
 # Thunderbird/mail
 Patch20:        tb-ssldap.patch
 BuildRoot:      %{_tmppath}/%{name}-%{version}-build
@@ -198,6 +202,11 @@ pushd mozilla
 %endif
 %patch4 -p1
 %patch5 -p1
+# APPLY Patch6 and Patch7 ONLY IF GCC >= 6 IS USED FOR COMPILATION
+%if %{gcc_ver} >= 6
+%patch6 -p1
+%patch7 -p1
+%endif
 popd
 # comm-central patches
 %patch20 -p1
diff --git a/mozilla-flexible-array-member-in-union.patch b/mozilla-flexible-array-member-in-union.patch
new file mode 100644
index 0000000..066d845
--- /dev/null
+++ b/mozilla-flexible-array-member-in-union.patch
@@ -0,0 +1,22 @@
+--- firefox-45.0.1-orig/gfx/harfbuzz/src/hb-font-private.hh	2016-03-15 23:37:28.000000000 +0100
++++ firefox-45.0.1/gfx/harfbuzz/src/hb-font-private.hh	2016-05-13 17:20:25.836258108 +0200
+@@ -80,7 +80,7 @@ struct hb_font_funcs_t {
+       HB_FONT_FUNCS_IMPLEMENT_CALLBACKS
+ #undef HB_FONT_FUNC_IMPLEMENT
+     } f;
+-    void (*array[]) (void);
++    void (*array[VAR]) (void);
+   } get;
+ };
+ 
+--- firefox-45.0.1-orig/gfx/harfbuzz/src/hb-private.hh	2016-03-15 23:37:28.000000000 +0100
++++ firefox-45.0.1/gfx/harfbuzz/src/hb-private.hh	2016-05-13 17:20:55.909655179 +0200
+@@ -1010,5 +1010,7 @@ hb_options (void)
+   return _hb_options.opts;
+ }
+ 
++/* Size signifying variable-sized array */
++#define VAR 1
+ 
+ #endif /* HB_PRIVATE_HH */
+
diff --git a/mozilla-gcc6.patch b/mozilla-gcc6.patch
new file mode 100644
index 0000000..56d2982
--- /dev/null
+++ b/mozilla-gcc6.patch
@@ -0,0 +1,27 @@
+diff -up firefox-44.0/nsprpub/config/make-system-wrappers.pl.back firefox-44.0/nsprpub/config/make-system-wrappers.pl
+--- firefox-44.0/nsprpub/config/make-system-wrappers.pl.back	2016-01-24 00:23:49.000000000 +0100
++++ firefox-44.0/nsprpub/config/make-system-wrappers.pl	2016-02-02 14:58:45.064112655 +0100
+@@ -19,7 +19,9 @@ while (<STDIN>) {
+     open OUT, ">$output_dir/$_";
+     print OUT "#pragma GCC system_header\n";  # suppress include_next warning
+     print OUT "#pragma GCC visibility push(default)\n";
++    print OUT "#define _GLIBCXX_INCLUDE_NEXT_C_HEADERS\n";
+     print OUT "#include_next \<$_\>\n";
++    print OUT "#undef _GLIBCXX_INCLUDE_NEXT_C_HEADERS\n";
+     print OUT "#pragma GCC visibility pop\n";
+     close OUT;
+ }
+diff -up firefox-44.0/mozglue/build/arm.cpp.old firefox-44.0/mozglue/build/arm.cpp
+--- firefox-44.0/mozglue/build/arm.cpp.old	2016-02-03 10:07:29.879526500 +0100
++++ firefox-44.0/mozglue/build/arm.cpp	2016-02-03 10:08:11.062697517 +0100
+@@ -104,7 +104,9 @@ check_neon(void)
+ 
+ #  elif defined(__linux__) || defined(ANDROID)
+ #    include <stdio.h>
++#define _GLIBCXX_INCLUDE_NEXT_C_HEADERS
+ #    include <stdlib.h>
++#undef _GLIBCXX_INCLUDE_NEXT_C_HEADERS
+ #    include <string.h>
+ 
+ enum{
+