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change libcalc dynamic library to link with libcustcalc
Under macOS, to reduce dependency chains, we remove functions and data that are unreachable by the entry point or exported symbols. In particular, the macOS linker is used with both "-dead_strip" and "-dead_strip_dylibs". The libcalc shared library is now linked with libcustcalc.
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@@ -177,22 +177,7 @@ LIBCUSTCALC_SHLIB= -dynamiclib -undefined dynamic_lookup \
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# data that are unreachable by the entry point or exported symbols.
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#
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COMMON_LDFLAGS+= -Wl,-dead_strip
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# Do not link with "-dead_strip_dylibs" if CUSTOM is defined
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# (i.e., ${ALLOW_CUSTOM} is "-DCUSTOM). This is because unless
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# the application makes an explicit symbol reference to some symbol
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# in libcustcalc, the application will fail to execute due to
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# a missing symbol.
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#
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# The calc application will run with CUSTOM defined under
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# "-dead_strip_dylibs" because calc.o (in main()) makes an explicit
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# reference to custtbl_allowed (see custom/custtbl.c) in libcustcalc.
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# However applications such as sample_many and sample_rand will
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# fail to load when CUSTOM is defined and "-dead_strip_dylibs" is used..
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#
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ifneq ($(ALLOW_CUSTOM),-DCUSTOM)
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COMMON_LDFLAGS+= -Wl,-dead_strip_dylibs
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endif # ($(ALLOW_CUSTOM),-DCUSTOM)
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# static library option
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#
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