> On May 30, 2017, at 4:48 PM, Jimmy Yue via swift-dev <swift-dev@swift.org> > wrote: > > Hey Swift Devs, > > Does there happen to be an environment variable, similar to 'CC' for C, that > I could use to override the path to the Swift compiler? If so, is there also > one for ibtool, metal, etc.? > > I want to redirect swift calls to a bash script that does some processing > before running the original compile call. Preferably, I would have all the > information available to the swift call (input files, output files, etc.), > which makes using a build rule a little difficult.
You might be able to do this using the "Build Rules" settings in Xcode. (project settings > target settings > Build Rules > click Copy to Target for the file type you are interested in) Xcode honors SWIFT_LIBRARY_PATH and SWIFT_EXEC in project settings, but that is designed to substitute the entire Swift toolchain, not just the Swift compiler itself. SWIFT_EXEC might work if your wrapper script lives next to swiftc in the filesystem. -- Greg Parker gpar...@apple.com <mailto:gpar...@apple.com> Runtime Wrangler
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