On Tue, Dec 10, 2002 at 10:15:58PM +1100, Andre Pang wrote:

Is it possible to modify the behaviour so that if --make -no-hs-main is specified, GHC won't perform the link if it finds a main function?

Oops, one more request which I almost forgot: -hidir currently specifies both where to search for .hi files, and where to output hi files. It would be good to split up the two operations into two distinct options; e.g. use -hidir to search for interface files, and a new option such as -ohidir to specify where to output new interface files. This is very useful if you're trying to build stuff (with --make) outside of the source tree: you could write "-i$src/SomeLibrary" to tell GHC to find the .hs files in a directory named $src/SomeLibrary, "-hidir$build/SomeLibrary" to find the .hi files in a directory named $build/SomeLibrary, and "-ohidir ." to tell GHC to output any .hi files to the current directory Being able to build outside of the source directory (e.g. if you make a 'build' directory in the source tree, and do ../configure from there) is fairly common, and is also required for passing a 'make distcheck' if you use automake. Currently, if you use "-hidir ." to put interface files in the current directory, GHC will only search the current directory for hi files, so it keeps building stuff unnecessarily if you specify imports outside the current directory with "-i$src/SomeLibrary", since they get built to $build/SomeLibrary instead of the directory you're currently in. Another way of achieving the same thing without adding a new option would be to search the directories specified with -i for interface files as well as .hs files; that way, you could do "-i$src/SomeLibrary -i$build/SomeLibrary -hidir ." to perform the same thing as the above. (I hope that wasn't too confusing!) -- #ozone/algorithm <ozone@algorithm.com.au> - trust.in.love.to.save