Greg Clayton f258bf9017 llvm::sys::path::home_directory() relies on having "HOME" set in the environment and that might not always be set. Our FileSpec class uses this function to resolve any paths that start with "~/" on systems that support home directories as '~'. I have modified FileSpec::ResolveUsername (llvm::SmallVectorImpl<char> &path) to deal with the cases where llvm::sys::path::home_directory() returns false by digging a little further on unix systems and setting "HOME" in the environment so that subsequent calls to llvm::sys::path::home_directory() will succeed. ...

I also added a test to ensure we don't regress.

<rdar://problem/25342377> 

llvm-svn: 266832

2016-04-19 23:04:35 +00:00

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