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  • Committer: Teddy Hogeborn
  • Date: 2023-02-11 06:46:26 UTC
  • mto: This revision was merged to the branch mainline in revision 410.
  • Revision ID: teddy@recompile.se-20230211064626-2aqhtdd46jbif6h6
Really enable FORTIFY_SOURCE=3

Use -DFORTIFY_SOURCE=3 by appending it to CPPFLAGS directly instead of
adding it indirectly to CFLAGS.

* Makefile (FORTIFY): Remove "-D_FORTIFY_SOURCE=3".
  (Fortify section/CPPFLAGS): New; append "-D_FORTIFY_SOURCE=3".
  (FEATURES): Remove.  Contents moved to CPPFLAGS.
  (CPPFLAGS): New; append "-D_FILE_OFFSET_BITS=64".
  (CFLAGS): Do not use "$(FEATURES)".

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Makefile
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# For info about _FORTIFY_SOURCE, see feature_test_macros(7)
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# and <https://gcc.gnu.org/ml/gcc-patches/2004-09/msg02055.html>.
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FORTIFY:=-D_FORTIFY_SOURCE=3 -fstack-protector-all -fPIC
 
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FORTIFY:=-fstack-protector-all -fPIC
 
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CPPFLAGS+=-D_FORTIFY_SOURCE=3
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LINK_FORTIFY_LD:=-z relro -z now
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LINK_FORTIFY:=
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#COVERAGE=--coverage
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OPTIMIZE:=-Os -fno-strict-aliasing
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LANGUAGE:=-std=gnu11
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FEATURES:=-D_FILE_OFFSET_BITS=64
 
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CPPFLAGS+=-D_FILE_OFFSET_BITS=64
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htmldir:=man
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version:=1.8.16
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SED:=sed
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# Do not change these two
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CFLAGS+=$(WARN) $(DEBUG) $(FORTIFY) $(COVERAGE) $(OPTIMIZE) \
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        $(LANGUAGE) $(FEATURES) -DVERSION='"$(version)"'
 
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        $(LANGUAGE) -DVERSION='"$(version)"'
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LDFLAGS+=-Xlinker --as-needed $(COVERAGE) $(LINK_FORTIFY) $(strip \
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        ) $(foreach flag,$(LINK_FORTIFY_LD),-Xlinker $(flag))
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