https://gcc.gnu.org/bugzilla/show_bug.cgi?id=71363
kargl at gcc dot gnu.org changed: What |Removed |Added ---------------------------------------------------------------------------- Status|UNCONFIRMED |RESOLVED CC| |kargl at gcc dot gnu.org Resolution|--- |INVALID --- Comment #1 from kargl at gcc dot gnu.org --- (In reply to Paul Mustiere from comment #0) > Hello, > > I am building the GNU toolchain for Android with support for Fortran, and > encountered an issue when targeting x86 for the runtime library. > > Note: I'm using the toolchain sources provided by Google, but as far as I > can tell the Fortran part is simply 4.9 since they are not trying to build > with Fortran. > > In intrisics/cshift0.c, I get a 'duplicate case value' > (http://paste.ubuntu.com/16861425/). As far as I can tell: > > - GFC_DTYPE_REAL_16 is defined (but not GFC_DTYPE_REAL_10), hence > GFC_REAL_16 is defined as long double. > - sizeof(long double) = sizeof(double) = 8, which causes the duplicate case. > > I find a workaround which consists of detecting both sizes in mk-kinds-h.sh > and checking that they are not equal before defining GFC_REAL_16. The rest > of the toolchain compiles fine, but I am not sure it's ideal. > Also, I'm curious as to why Fortran seems to be fine with real (kind=16) but > C doesn't seem to be able to hold variables that big. > > I know I'm not using the regular GNU toolchain but any help is appreciated. > > Cheers, > Paul Mustiere Unless you can reproduce the problem with sources from head (aka 7.0), the 6-branch, or 5-branch, I afraid you are on your own. If you can reproduce the problem with "official" source feel free to re-open the bug report.