libstdc++-v3/libsupc++/eh_call.cc: Avoid "set but not used" warning

When building with -fno-exceptions, bad_exception_allowed is set but
not used, causing a warning during the build.

This patch adds __attribute__((unused)) to avoid it.

2020-09-11  Torbjörn SVENSSON  <torbjorn.svensson@st.com>
	    Christophe Lyon  <christophe.lyon@linaro.org>

	libstdc++-v3/
	* libsupc++/eh_call.cc: Avoid warning with -fno-exceptions.

diff --git a/libstdc++-v3/libsupc++/eh_call.cc b/libstdc++-v3/libsupc++/eh_call.cc
index d50c4fb..3c7426e 100644 (file)
--- a/libstdc++-v3/libsupc++/eh_call.cc
+++ b/libstdc++-v3/libsupc++/eh_call.cc
@@ -124,7 +124,7 @@ __cxa_call_unexpected(void* exc_obj_in)
       void* new_ptr = __get_object_from_ambiguous_exception (new_xh);
       const std::type_info* catch_type;
       int n;
-      bool bad_exception_allowed = false;
+      bool bad_exception_allowed __attribute__((unused)) = false;
       const std::type_info& bad_exc = typeid(std::bad_exception);
 
       // Check the new exception against the rtti list