| Summary: | sys-devel/gcc-4.7.2: cross-compiling (canadian) triggers warning: include location "/usr/include/cloog-ppl" is unsafe for cross-compilation | ||
|---|---|---|---|
| Product: | Gentoo Linux | Reporter: | Dennis Schridde <dschridde+gentoobugs> |
| Component: | Eclasses | Assignee: | Gentoo Toolchain Maintainers <toolchain> |
| Status: | RESOLVED DUPLICATE | ||
| Severity: | normal | ||
| Priority: | Normal | ||
| Version: | unspecified | ||
| Hardware: | All | ||
| OS: | Linux | ||
| Whiteboard: | |||
| Package list: | Runtime testing required: | --- | |
| Attachments: |
emerge --info (host)
emerge --info (cross) |
||
sorry, but please provide more details. it's hard to guess at what you're doing here and the proper fix without them. start with `emerge --info`, as well as details on your cross-compiler, as well as whatever it is you're compiling that triggers these warnings. Created attachment 326750 [details]
emerge --info (host)
Created attachment 326752 [details]
emerge --info (cross)
I have also set:
export FC="${CHOST}-gfortran --sysroot=${SYSROOT}"
export CC="${CHOST}-gcc --sysroot=${SYSROOT}"
export CXX="${CHOST}-g++ --sysroot=${SYSROOT}"
… with CHOST set to the cross-compile CHOST, i.e. !=CBUILD.
I was trying to build sys-devel/gcc-4.7.2.
why are you exporting toolchain variables that way ? the cross-compiler itself takes care of setting the correct sysroot. for now, use USE=-graphite *** This bug has been marked as a duplicate of bug 406359 *** (In reply to comment #5) > why are you exporting toolchain variables that way ? the cross-compiler > itself takes care of setting the correct sysroot. I am building with SYSROOT=/path/to/target and want to use the cross-compiler in /usr/$CHOST for that. I.e. it shall search in $SYSROOT/usr/include by default, instead of /usr/$CHOST/usr/include. |
eclass/toolchain.eclass sets: confgcc+=" --with-cloog-include=/usr/include/cloog-ppl" This leads to: cc1: warning: include location "/usr/include/cloog-ppl" is unsafe for cross-compilation [-Wpoison-system-directories] ... during cross-compilation of GCC with CC="${CHOST}-gcc --sysroot ...". The eclass should probably set --with-cloog-include=${PREFIX}/usr/include/cloog-ppl instead. It does not seem to cause any major problem in my case, hence I choose minor severity. Reproducible: Always