[libc++abi][libunwind] Don't override libc++'s handling of exception features

0e04342ae039 simplified exceptions-related configurations for libc++abi
and libunwind by reusing the logic in libc++. However, it missed the fact
that libc++abi and libunwind were overriding libc++'s handling of exceptions.

This commit removes special handling in libc++abi and libunwind to use
the logic in libc++, which is the right one.

diff --git a/libcxxabi/test/libcxxabi/test/config.py b/libcxxabi/test/libcxxabi/test/config.py
index f1eb453..37938d5 100644 (file)
--- a/libcxxabi/test/libcxxabi/test/config.py
+++ b/libcxxabi/test/libcxxabi/test/config.py
@@ -86,8 +86,5 @@ class Configuration(LibcxxConfiguration):
                                       % libunwind_headers)
             self.cxx.compile_flags += ['-I' + libunwind_headers]
 
-    def configure_compile_flags_exceptions(self):
-        pass
-
     def configure_compile_flags_rtti(self):
         pass

diff --git a/libunwind/test/libunwind/test/config.py b/libunwind/test/libunwind/test/config.py
index 7e4f230..31f6148 100644 (file)
--- a/libunwind/test/libunwind/test/config.py
+++ b/libunwind/test/libunwind/test/config.py
@@ -59,9 +59,6 @@ class Configuration(LibcxxConfiguration):
                                   % libunwind_headers)
         self.cxx.compile_flags += ['-I' + libunwind_headers]
 
-    def configure_compile_flags_exceptions(self):
-        pass
-
     def configure_compile_flags_rtti(self):
         pass