| Summary: | media-libs/opencv: cross-compiling fails due to cmake unable to properly test compiler settings | ||
|---|---|---|---|
| Product: | Gentoo Linux | Reporter: | SpanKY <vapier> |
| Component: | [OLD] Development | Assignee: | Andreas K. Hüttel <dilfridge> |
| Status: | RESOLVED FIXED | ||
| Severity: | normal | CC: | embedded, guileone, kde, morozov.andrey.vmk |
| Priority: | Normal | ||
| Version: | unspecified | ||
| Hardware: | All | ||
| OS: | Linux | ||
| Whiteboard: | |||
| Package list: | Runtime testing required: | --- | |
| Attachments: |
emerge build log
strace log |
||
Created attachment 309979 [details]
strace log
log has been edited & truncated to make it fit in the upload limit, but i think you should still be able to pick out the failing pieces
I've added the workaround with tc-export in 2.4.5; I can't see how it would hurt anything. If you want a better solution on the long run just re-open the bug please, but I can't really promise anything... *** Bug 443498 has been marked as a duplicate of this bug. *** |
Created attachment 309977 [details] emerge build log i have cross-compile settings like so: CHOST=armv7a-cros-linux-gnueabi CFLAGS="-O2 -pipe -g -march=armv7-a -mfpu=vfpv3-d16 -mfloat-abi=softfp" CXXFLAGS="${CFLAGS}" when i emerge opencv for that, it fails. see the attached log -- this is after adding --trace to cmake-utils.eclass. i also ran it through strace, and it seems that gcc/g++ is being tested with the target CFLAGS/CXXFLAGS instead of using the compiler values that were setup in the gentoo cmake config override. i don't know if this is a failing in cmake or opencv, but i'd believe either. simply adding `tc-export CC CXX` before calling cmake "fixed" things -- the right compilers get tested with the right flags and the build succeeds.