if DEFAULT_TARGET_X86_64
 
+two_file_test_1_v1_ndebug.o: two_file_test_1_v1.cc
+       $(CXXCOMPILE) -O0 -g0 -c -o $@ $<
+two_file_test_1_ndebug.o: two_file_test_1.cc
+       $(CXXCOMPILE) -O0 -g0 -c -o $@ $<
+two_file_test_1b_ndebug.o: two_file_test_1b.cc
+       $(CXXCOMPILE) -O0 -g0 -c -o $@ $<
+two_file_test_2_ndebug.o: two_file_test_2.cc
+       $(CXXCOMPILE) -O0 -g0 -c -o $@ $<
+two_file_test_main_ndebug.o: two_file_test_main.cc
+       $(CXXCOMPILE) -O0 -g0 -c -o $@ $<
+
 check_PROGRAMS += incremental_test_2
 MOSTLYCLEANFILES += two_file_test_tmp_2.o
-incremental_test_2: two_file_test_1_v1.o two_file_test_1.o two_file_test_1b.o \
-                   two_file_test_2.o two_file_test_main.o gcctestdir/ld
-       cp -f two_file_test_1_v1.o two_file_test_tmp_2.o
-       $(CXXLINK) -Wl,--incremental-full,--incremental-patch=100 -Bgcctestdir/ two_file_test_tmp_2.o two_file_test_1b.o two_file_test_2.o two_file_test_main.o
+incremental_test_2: two_file_test_1_v1_ndebug.o two_file_test_1_ndebug.o two_file_test_1b_ndebug.o \
+                   two_file_test_2_ndebug.o two_file_test_main_ndebug.o gcctestdir/ld
+       cp -f two_file_test_1_v1_ndebug.o two_file_test_tmp_2.o
+       $(CXXLINK) -Wl,--incremental-full,--incremental-patch=100 -Bgcctestdir/ two_file_test_tmp_2.o two_file_test_1b_ndebug.o two_file_test_2_ndebug.o two_file_test_main_ndebug.o
        @sleep 1
-       cp -f two_file_test_1.o two_file_test_tmp_2.o
-       $(CXXLINK) -Wl,--incremental-update -Bgcctestdir/ two_file_test_tmp_2.o two_file_test_1b.o two_file_test_2.o two_file_test_main.o
+       cp -f two_file_test_1_ndebug.o two_file_test_tmp_2.o
+       $(CXXLINK) -Wl,--incremental-update -Bgcctestdir/ two_file_test_tmp_2.o two_file_test_1b_ndebug.o two_file_test_2_ndebug.o two_file_test_main_ndebug.o
 
 check_PROGRAMS += incremental_test_3
 MOSTLYCLEANFILES += two_file_test_tmp_3.o
 
 # Test that --start-lib and --end-lib function correctly.
 @GCC_TRUE@@NATIVE_LINKER_TRUE@am__append_53 = start_lib_test
 
-# End-to-end incremental linking tests.
-# Incremental linking is currently supported only on the x86_64 target.
-
 # Test the --incremental-unchanged flag with an archive library.
 # The second link should not update the library.
 @DEFAULT_TARGET_X86_64_TRUE@@GCC_TRUE@@NATIVE_LINKER_TRUE@am__append_54 = incremental_test_2 \
 @GCC_TRUE@@NATIVE_LINKER_TRUE@ $(LINK) -Bgcctestdir/ -nostartfiles -nostdlib -T $(srcdir)/memory_test.t -o $@ memory_test.o
 @GCC_TRUE@@NATIVE_LINKER_TRUE@memory_test.stdout: memory_test
 @GCC_TRUE@@NATIVE_LINKER_TRUE@ $(TEST_READELF) -lWS  $< > $@
-@DEFAULT_TARGET_X86_64_TRUE@@GCC_TRUE@@NATIVE_LINKER_TRUE@incremental_test_2: two_file_test_1_v1.o two_file_test_1.o two_file_test_1b.o \
-@DEFAULT_TARGET_X86_64_TRUE@@GCC_TRUE@@NATIVE_LINKER_TRUE@                 two_file_test_2.o two_file_test_main.o gcctestdir/ld
-@DEFAULT_TARGET_X86_64_TRUE@@GCC_TRUE@@NATIVE_LINKER_TRUE@     cp -f two_file_test_1_v1.o two_file_test_tmp_2.o
-@DEFAULT_TARGET_X86_64_TRUE@@GCC_TRUE@@NATIVE_LINKER_TRUE@     $(CXXLINK) -Wl,--incremental-full,--incremental-patch=100 -Bgcctestdir/ two_file_test_tmp_2.o two_file_test_1b.o two_file_test_2.o two_file_test_main.o
+
+# End-to-end incremental linking tests.
+# Incremental linking is currently supported only on the x86_64 target.
+
+@DEFAULT_TARGET_X86_64_TRUE@@GCC_TRUE@@NATIVE_LINKER_TRUE@two_file_test_1_v1_ndebug.o: two_file_test_1_v1.cc
+@DEFAULT_TARGET_X86_64_TRUE@@GCC_TRUE@@NATIVE_LINKER_TRUE@     $(CXXCOMPILE) -O0 -g0 -c -o $@ $<
+@DEFAULT_TARGET_X86_64_TRUE@@GCC_TRUE@@NATIVE_LINKER_TRUE@two_file_test_1_ndebug.o: two_file_test_1.cc
+@DEFAULT_TARGET_X86_64_TRUE@@GCC_TRUE@@NATIVE_LINKER_TRUE@     $(CXXCOMPILE) -O0 -g0 -c -o $@ $<
+@DEFAULT_TARGET_X86_64_TRUE@@GCC_TRUE@@NATIVE_LINKER_TRUE@two_file_test_1b_ndebug.o: two_file_test_1b.cc
+@DEFAULT_TARGET_X86_64_TRUE@@GCC_TRUE@@NATIVE_LINKER_TRUE@     $(CXXCOMPILE) -O0 -g0 -c -o $@ $<
+@DEFAULT_TARGET_X86_64_TRUE@@GCC_TRUE@@NATIVE_LINKER_TRUE@two_file_test_2_ndebug.o: two_file_test_2.cc
+@DEFAULT_TARGET_X86_64_TRUE@@GCC_TRUE@@NATIVE_LINKER_TRUE@     $(CXXCOMPILE) -O0 -g0 -c -o $@ $<
+@DEFAULT_TARGET_X86_64_TRUE@@GCC_TRUE@@NATIVE_LINKER_TRUE@two_file_test_main_ndebug.o: two_file_test_main.cc
+@DEFAULT_TARGET_X86_64_TRUE@@GCC_TRUE@@NATIVE_LINKER_TRUE@     $(CXXCOMPILE) -O0 -g0 -c -o $@ $<
+@DEFAULT_TARGET_X86_64_TRUE@@GCC_TRUE@@NATIVE_LINKER_TRUE@incremental_test_2: two_file_test_1_v1_ndebug.o two_file_test_1_ndebug.o two_file_test_1b_ndebug.o \
+@DEFAULT_TARGET_X86_64_TRUE@@GCC_TRUE@@NATIVE_LINKER_TRUE@                 two_file_test_2_ndebug.o two_file_test_main_ndebug.o gcctestdir/ld
+@DEFAULT_TARGET_X86_64_TRUE@@GCC_TRUE@@NATIVE_LINKER_TRUE@     cp -f two_file_test_1_v1_ndebug.o two_file_test_tmp_2.o
+@DEFAULT_TARGET_X86_64_TRUE@@GCC_TRUE@@NATIVE_LINKER_TRUE@     $(CXXLINK) -Wl,--incremental-full,--incremental-patch=100 -Bgcctestdir/ two_file_test_tmp_2.o two_file_test_1b_ndebug.o two_file_test_2_ndebug.o two_file_test_main_ndebug.o
 @DEFAULT_TARGET_X86_64_TRUE@@GCC_TRUE@@NATIVE_LINKER_TRUE@     @sleep 1
-@DEFAULT_TARGET_X86_64_TRUE@@GCC_TRUE@@NATIVE_LINKER_TRUE@     cp -f two_file_test_1.o two_file_test_tmp_2.o
-@DEFAULT_TARGET_X86_64_TRUE@@GCC_TRUE@@NATIVE_LINKER_TRUE@     $(CXXLINK) -Wl,--incremental-update -Bgcctestdir/ two_file_test_tmp_2.o two_file_test_1b.o two_file_test_2.o two_file_test_main.o
+@DEFAULT_TARGET_X86_64_TRUE@@GCC_TRUE@@NATIVE_LINKER_TRUE@     cp -f two_file_test_1_ndebug.o two_file_test_tmp_2.o
+@DEFAULT_TARGET_X86_64_TRUE@@GCC_TRUE@@NATIVE_LINKER_TRUE@     $(CXXLINK) -Wl,--incremental-update -Bgcctestdir/ two_file_test_tmp_2.o two_file_test_1b_ndebug.o two_file_test_2_ndebug.o two_file_test_main_ndebug.o
 @DEFAULT_TARGET_X86_64_TRUE@@GCC_TRUE@@NATIVE_LINKER_TRUE@incremental_test_3: two_file_test_1.o two_file_test_1b_v1.o two_file_test_1b.o \
 @DEFAULT_TARGET_X86_64_TRUE@@GCC_TRUE@@NATIVE_LINKER_TRUE@                 two_file_test_2.o two_file_test_main.o gcctestdir/ld
 @DEFAULT_TARGET_X86_64_TRUE@@GCC_TRUE@@NATIVE_LINKER_TRUE@     cp -f two_file_test_1b_v1.o two_file_test_tmp_3.o