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nix build: Add --out-link and --no-link options

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This commit is contained in:
Eelco Dolstra 2017-09-06 16:20:34 +02:00
parent df4342bc17
commit dff440aab3
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4 changed files with 37 additions and 10 deletions
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13
src/libutil/args.hh
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@ -80,6 +80,19 @@ public:
FlagMaker & arity(size_t arity) { flag->arity = arity; return *this; };
FlagMaker & handler(std::function<void(Strings)> handler) { flag->handler = handler; return *this; };
FlagMaker & category(const std::string & s) { flag->category = s; return *this; };
FlagMaker & dest(std::string * dest) {
assert(flag->arity == 1);
flag->handler = [=](Strings ss) { *dest = ss.front(); };
return *this;
};
template<class T>
FlagMaker & set(T * dest, const T & val) {
assert(flag->arity == 0);
flag->handler = [=](Strings ss) { *dest = val; };
return *this;
};
};
FlagMaker mkFlag();