gmni: disable fortify3
to fix gcc-13
build
It's not masking a real overflow, but inhibits invalid `snprintf()` buffer size bassed. Without the change build fails on `master` as: In function 'snprintf', inlined from 'xt_end_chain' at src/tofu.c:82:3, inlined from 'xt_end_chain' at src/tofu.c:70:1: ...-glibc-2.38-27-dev/include/bits/stdio2.h:54:10: error: '__builtin___snprintf_chk' specified bound 4 exceeds destination size 3 [-Werror=stringop-overflow] 54 | return __builtin___snprintf_chk (__s, __n, __USE_FORTIFY_LEVEL - 1, | ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~ 55 | __glibc_objsize (__s), __fmt, | ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~ 56 | __va_arg_pack ()); | ~~~~~~~~~~~~~~~~~ As the project is not maintained anymore let's just disable the `fortify3` that puts an extra check into `snprintf()` buffer.
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@ -14,6 +14,14 @@ stdenv.mkDerivation rec {
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nativeBuildInputs = [ scdoc ];
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buildInputs = [ bearssl ];
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# Fix build on `gcc-13`:
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# inlined from 'xt_end_chain' at src/tofu.c:82:3,
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# ...-glibc-2.38-27-dev/include/bits/stdio2.h:54:10: error: '__builtin___snprintf_chk' specified bound 4 exceeds destination size 3 [-Werror=stringop-overflow]
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#
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# The overflow will not happen in practice, but `snprintf()` gets
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# passed one more byte than available.
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hardeningDisable = [ "fortify3" ];
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meta = with lib; {
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description = "A Gemini client";
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homepage = "https://git.sr.ht/~sircmpwn/gmni";
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