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Add comment explaining gcc exception for undeclared_deps.

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Carlo Cabrera 2022-09-02 22:03:22 +08:00
parent ef7c9cf17c
commit b2cc1720f8
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Library/Homebrew/extend/os/linux/linkage_checker.rb
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@ -81,6 +81,13 @@ class LinkageChecker
SYSTEM_LIBRARY_ALLOWLIST.include? File.basename(s) SYSTEM_LIBRARY_ALLOWLIST.include? File.basename(s)
end end
# We build all formulae with an RPATH that includes the gcc formula's runtime lib directory.
# See: https://github.com/Homebrew/brew/blob/e689cc07/Library/Homebrew/extend/os/linux/extend/ENV/super.rb#L53
# This results in formulae showing linkage with gcc whenever it is installed, even if no dependency is declared.
# See discussions at:
# https://github.com/Homebrew/brew/pull/13659
# https://github.com/Homebrew/brew/pull/13796
# TODO: Find a nicer way to handle this. (e.g. examining the ELF file to determine the required libstdc++.)
@undeclared_deps.delete("gcc") @undeclared_deps.delete("gcc")
end end
end end