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* Makefile.am (CCFILES): Add target.cc.
* Makefile.in: Regenerate.
* i386.cc (class Target_i386): Define new virtual method to
override do_is_local_label_name in parent.
* object.cc (Sized_relobj::do_count_local_symbols): Discard
local symbols if --discard-locals or -X is given.
* options.h (class General_options): Declare new options
'--discard-locals' and '-X' for discarding locals.
* target.h (class Target): Define new methods is_local_label_name.
Declare new virtual method do_is_local_label_name.
* target.cc: New file.
* testsuite/Makefile.am (check_PROGRAMS): Add discard_locals_test.
(check_SCRIPTS): Add discard_locals_test.sh.
(check_DATA): Add discard_local_tests.syms.
(discard_locals_test_SOURCES, discard_locals_test_LDFLAGS): Define.
(discard_local_tests.syms, discard_locals_test.o): New make rules.
* testsuite/Makefile.in: Regenerate.
* testsuite/discard_locals_test.c: New file.
* testsuite/discard_locals_test.sh: Same.
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