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* Allow string concatenations involving derivations, e.g.,

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configureFlags = "--with-freetype2-library="
      + freetype + "/lib";
This commit is contained in:
Eelco Dolstra 2006-05-01 09:56:56 +00:00
parent cce31b739c
commit 6cecad2be0
8 changed files with 130 additions and 18 deletions
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4
src/libexpr/get-drvs.cc
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@ -45,6 +45,10 @@ MetaInfo DrvInfo::queryMetaInfo(EvalState & state) const
}
/* Cache for already evaluated derivations. Usually putting ATerms in
a STL container is unsafe (they're not scanning for GC roots), but
here it doesn't matter; everything in this set is reachable from
the stack as well. */
typedef set<Expr> Exprs;