diff --git a/thunderbird.spec b/thunderbird.spec
index df71203..6cdbd93 100644
--- a/thunderbird.spec
+++ b/thunderbird.spec
@@ -63,7 +63,7 @@ Patch8:         xulrunner-10.0-secondary-ipc.patch
 # Build patches
 Patch102:       mozilla-733867-x.patch
 Patch103:       mozilla-file.patch
-
+Patch104:       xulrunner-10.0-gcc47.patch
 # Linux specific
 Patch200:       thunderbird-8.0-enable-addons.patch
 
@@ -152,6 +152,7 @@ cd mozilla
 %patch7 -p2 -b .static
 %patch8 -p3 -b .secondary-ipc
 %patch103 -p1 -b .mozilla-file
+%patch104 -p1 -b .gcc47
 cd ..
 %patch102 -p1 -b .733867
 
diff --git a/xulrunner-10.0-gcc47.patch b/xulrunner-10.0-gcc47.patch
new file mode 100644
index 0000000..91a948a
--- /dev/null
+++ b/xulrunner-10.0-gcc47.patch
@@ -0,0 +1,25 @@
+diff -up mozilla-beta/ipc/chromium/src/base/time_posix.cc.gcc47 mozilla-beta/ipc/chromium/src/base/time_posix.cc
+--- mozilla-beta/ipc/chromium/src/base/time_posix.cc.gcc47	2012-01-24 03:00:00.000000000 -0500
++++ mozilla-beta/ipc/chromium/src/base/time_posix.cc	2012-01-30 14:12:49.198472212 -0500
+@@ -14,6 +14,8 @@
+ #include <time.h>
+ #endif
+ 
++#include <unistd.h>
++
+ #include <limits>
+ 
+ #include "base/basictypes.h"
+diff -up mozilla-beta/toolkit/crashreporter/client/Makefile.in.gcc47 mozilla-beta/toolkit/crashreporter/client/Makefile.in
+--- mozilla-beta/toolkit/crashreporter/client/Makefile.in.gcc47	2012-01-30 14:41:14.475441039 -0500
++++ mozilla-beta/toolkit/crashreporter/client/Makefile.in	2012-01-30 14:43:03.587646656 -0500
+@@ -69,6 +69,9 @@ CPPSRCS = \
+   $(STDCXX_COMPAT) \
+   $(NULL)
+ 
++# Needed for moz_free
++LIBS += -L$(LIBXUL_DIST)/lib -lmozalloc
++
+ ifeq ($(OS_ARCH),WINNT)
+ CPPSRCS += crashreporter_win.cpp
+ LIBS += \