Work around a new GCC warning

ltrace.spec

@@ -23,6 +23,9 @@ Patch0: ltrace-0.7.2-bits.patch
 # conventions.
 Patch1: ltrace-0.7.2-arm.patch
 
+# Work around a recently-added GCC warning.
+Patch2: ltrace-0.7.2-unused-typedef.patch
+
 %description
 Ltrace is a debugging program which runs a specified command until the
 command exits.  While the command is executing, ltrace intercepts and
@@ -37,6 +40,7 @@ execution of processes.
 %setup -q
 %patch0 -p1
 %patch1 -p1
+%patch2 -p1
 
 %build
 autoreconf -i
@@ -68,6 +72,7 @@ echo ====================TESTING END=====================
 - Add a patch that implements ARM sofware singlestepping.  This mostly
   fixes test suite on ARM, though parameter passing conventions are
   still not implemented.  (ltrace-0.7.2-arm.patch)
+- Work around a new GCC warning (ltrace-0.7.2-unused-typedef.patch)
 
 * Fri Jan 11 2013 Petr Machata <pmachata@redhat.com> - 0.7.2-2
 - Improve documentation: better correlation between ltrace(1) and