Hello! It seems, that I can make really good progress here. Now the only things that remain:
The libtool .la files record the installation directory, these are textfile wrappers anyways, so I don't know if we should care about this. The mkheaders shell srcipt in install-tools record the installation directory, this is in source form by the way, so I don't know if we should care about this. I this two cases the transformation to get the other set of files is simply to replace the prefix, so we could make a test on that if we want. The only remainig problem is that the symbol executable_checksum in cc1 and cc1plus still differ. No other differences remained. I'm now investigating the checksum issue. 2017-11-23 12:23 GMT+01:00 Gábor Boskovits <boskov...@gmail.com>: > Hello! > > It seems, that one of the source of the reporoducibilty issues with the > gcc build output is that it contains la files with libdir recorded. > Libtool records that in those la files. > I wonder if we have any solution to that already, because it seems to > affect every project using libtool. > > If not, do we have any idea to solve this? It would be great if we could > come up with some generic solution to the problem. > > 2017-11-23 8:14 GMT+01:00 Ricardo Wurmus <rek...@elephly.net>: > >> >> Hi Gábor, >> >> > I'm using the getenv approach Ricardo suggested. I've not written a >> wrapper >> > yet, the environment variables are set from the build. >> >> Maybe that’s sufficient already. Since the result of this package is >> not going to be used as an input to build software it may not actually >> need a wrapper. >> >> Instead we can just set the variables in a build phase. >> >> > I'd like some help with choosing appropriate names for these environment >> > variables. >> >> I would prefix all of the environment variables with “GUIX_GCC_” just to >> avoid conflicts with other legitimate environment variables. Other than >> that the names are fine. >> >> Thanks for investigating this. I’m impressed with your level of success! >> >> -- >> Ricardo >> >> GPG: BCA6 89B6 3655 3801 C3C6 2150 197A 5888 235F ACAC >> https://elephly.net >> >> >> >
