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perl: don't use libxcrypt on FreeBSD
Tested by building pkgsCross.x86_64-freebsd.perl from x86_64-linux.
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@ -36,7 +36,16 @@ let
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optional crossCompiling "mini";
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optional crossCompiling "mini";
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setOutputFlags = false;
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setOutputFlags = false;
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propagatedBuildInputs = lib.optional enableCrypt libxcrypt;
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# On FreeBSD, if Perl is built with threads support, having
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# libxcrypt available will result in a build failure, because
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# perl.h will get conflicting definitions of struct crypt_data
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# from libc's unistd.h and libxcrypt's crypt.h.
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#
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# FreeBSD Ports has the same issue building the perl port if
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# the libxcrypt port has been installed.
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#
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# Without libxcrypt, Perl will still find FreeBSD's crypt functions.
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propagatedBuildInputs = lib.optional (enableCrypt && !stdenv.isFreeBSD) libxcrypt;
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disallowedReferences = [ stdenv.cc ];
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disallowedReferences = [ stdenv.cc ];
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