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gcc-7 warning breaks ld testsuite


.../ld/testsuite/ld-elf/new.cc:21:31: warning: dynamic exception specifications are deprecated in C++11; use
 'noexcept' instead [-Wdeprecated]
 operator new (std::size_t sz) throw (std::bad_alloc)
                               ^~~~~

The same warning is given for ld/testsuite/ld-elf/dl5.cc, and result
in the tests failing with ERROR.  What's the right thing to do about
the above gcc-7 warning, given that many different compilers might be
used to build binutils?

I'm leaning towards passing -ansi.

diff --git a/ld/testsuite/ld-elf/shared.exp b/ld/testsuite/ld-elf/shared.exp
index 41fb2ba..070915a 100644
--- a/ld/testsuite/ld-elf/shared.exp
+++ b/ld/testsuite/ld-elf/shared.exp
@@ -581,10 +581,10 @@ set build_cxx_tests {
    "-shared -Wl,--dynamic-list-cpp-typeinfo" "-fPIC"
    {dl3.cc} {} "libdl3c.so" "c++"}
   {"Build libdnew1a.so with --Bsymbolic-functions --dynamic-list-cpp-new"
-   "-shared -Wl,-Bsymbolic-functions,--dynamic-list-cpp-new" "-fPIC"
+   "-shared -Wl,-Bsymbolic-functions,--dynamic-list-cpp-new" "-fPIC -ansi"
    {del.cc new.cc} {} "libnew1a.so" "c++"}
   {"Build libdnew1b.so with --dynamic-list-data --dynamic-list-cpp-new"
-   "-shared -Wl,--dynamic-list-data,--dynamic-list-cpp-new" "-fPIC"
+   "-shared -Wl,--dynamic-list-data,--dynamic-list-cpp-new" "-fPIC -ansi"
    {del.cc new.cc} {} "libnew1b.so" "c++"}
 }
 
@@ -601,10 +601,10 @@ set run_cxx_tests {
      {dl3main.cc} "dl3c" "dl3a.out" "" "c++"}
     {"Run with libnew1a.so"
      "-Wl,--no-as-needed tmpdir/libnew1a.so" ""
-     {dl5.cc} "dl5a" "dl5.out" "" "c++"}
+     {dl5.cc} "dl5a" "dl5.out" "-ansi" "c++"}
     {"Run with libnew1b.so"
      "-Wl,--no-as-needed tmpdir/libnew1b.so" ""
-     {dl5.cc} "dl5b" "dl5.out" "" "c++"}
+     {dl5.cc} "dl5b" "dl5.out" "-ansi" "c++"}
 }
 
 run_cc_link_tests $build_cxx_tests

-- 
Alan Modra
Australia Development Lab, IBM


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