Index: gcc-5.4.0/libgcc/configure
===================================================================
--- gcc-5.4.0.orig/libgcc/configure	2016-07-15 12:10:52.742822464 -0400
+++ gcc-5.4.0/libgcc/configure	2016-07-15 12:10:52.864822456 -0400
@@ -4571,17 +4571,19 @@
 }
 
 _ACEOF
-CFLAGS_hold=$CFLAGS
-CFLAGS="--save-temps -fexceptions"
 libgcc_cv_lib_sjlj_exceptions=unknown
-if ac_fn_c_try_compile; then :
+if { ac_try='${CC-cc} -fexceptions -S conftest.c -o conftest.s 1>&5'
+  { { eval echo "\"\$as_me\":${as_lineno-$LINENO}: \"$ac_try\""; } >&5
+  (eval $ac_try) 2>&5
+  ac_status=$?
+  $as_echo "$as_me:${as_lineno-$LINENO}: \$? = $ac_status" >&5
+  test $ac_status = 0; }; }; then
   if grep _Unwind_SjLj_Resume conftest.s >/dev/null 2>&1; then
     libgcc_cv_lib_sjlj_exceptions=yes
   elif grep _Unwind_Resume conftest.s >/dev/null 2>&1; then
     libgcc_cv_lib_sjlj_exceptions=no
   fi
 fi
-CFLAGS=$CFLAGS_hold
 rm -f conftest*
 
 fi
Index: gcc-5.4.0/libgcc/configure.ac
===================================================================
--- gcc-5.4.0.orig/libgcc/configure.ac	2016-07-15 12:10:52.742822464 -0400
+++ gcc-5.4.0/libgcc/configure.ac	2016-07-15 12:10:52.864822456 -0400
@@ -255,16 +255,14 @@
   bar();
 }
 ])])
-CFLAGS_hold=$CFLAGS
-CFLAGS="--save-temps -fexceptions"
 libgcc_cv_lib_sjlj_exceptions=unknown
-AS_IF([ac_fn_c_try_compile],
-  [if grep _Unwind_SjLj_Resume conftest.s >/dev/null 2>&1; then
+if AC_TRY_COMMAND(${CC-cc} -fexceptions -S conftest.c -o conftest.s 1>&AS_MESSAGE_LOG_FD); then
+  if grep _Unwind_SjLj_Resume conftest.s >/dev/null 2>&1; then
     libgcc_cv_lib_sjlj_exceptions=yes
   elif grep _Unwind_Resume conftest.s >/dev/null 2>&1; then
     libgcc_cv_lib_sjlj_exceptions=no
-  fi])
-CFLAGS=$CFLAGS_hold
+  fi
+fi
 rm -f conftest*
 ])