diff --git a/clamav-gcc47.patch b/clamav-gcc47.patch
new file mode 100644
index 0000000..89beae1
--- /dev/null
+++ b/clamav-gcc47.patch
@@ -0,0 +1,12 @@
+Index: clamav-0.97.3/libclamav/c++/llvm/lib/ExecutionEngine/JIT/Intercept.cpp
+===================================================================
+--- clamav-0.97.3.orig/libclamav/c++/llvm/lib/ExecutionEngine/JIT/Intercept.cpp
++++ clamav-0.97.3/libclamav/c++/llvm/lib/ExecutionEngine/JIT/Intercept.cpp
+@@ -15,6 +15,7 @@
+ //
+ //===----------------------------------------------------------------------===//
+ 
++#include <unistd.h>
+ #include "JIT.h"
+ #include "llvm/Support/ErrorHandling.h"
+ #include "llvm/System/DynamicLibrary.h"
diff --git a/clamav.changes b/clamav.changes
index b1648a3..9f023ad 100644
--- a/clamav.changes
+++ b/clamav.changes
@@ -1,3 +1,8 @@
+-------------------------------------------------------------------
+Sat Mar 17 19:36:17 UTC 2012 - dimstar@opensuse.org
+
+- Add clamav-gcc47.patch: Fix build with gcc 4.7.
+
 -------------------------------------------------------------------
 Sat Mar 17 14:18:48 UTC 2012 - toganm@opensuse.org
 
diff --git a/clamav.spec b/clamav.spec
index 4e9fb1a..4ee4f3b 100644
--- a/clamav.spec
+++ b/clamav.spec
@@ -61,6 +61,7 @@ Source4:        clamav-rpmlintrc
 Source5:        clamav-rcmilter
 Patch1:         clamav-conf.patch
 Patch2:         clamav-sles9.patch
+Patch3:         clamav-gcc47.patch
 BuildRoot:      %{_tmppath}/%{name}-%{version}-build
 
 %description
@@ -129,6 +130,7 @@ Authors:
 # SLES9's libmilter doesn't have smfi_insheader()
 %patch2
 %endif
+%patch3 -p1
 
 %build
 %if 0%{?suse_version} >= 1010