Regarding commit c0b3ce38db0eaaca05fe2f45827fcf6c9184b72b "wavelet: fix for -lgslcblas getting stripped out of the link flags due to -Wl,--as-needed default on newer gcc toolchains, results in missing blas symbols at runtime", as well as other assumptions being made about GCC:
<soapbox> Just because the compiler is GCC does not mean it will accept the flag being passed to it, nor that it is guaranteed to provide specific functionality if >= a specific version. Maybe this works on Linux, but it does not on Mac OS X using either Apple's or MacPorts' GCC (4.2, 4.6, 4.7). So, the above "-Wl,--no-as-needed" does not work, nor does the "xgetbv" instruction, because all versions of GCC use Apple's assembler (which does not support these features). Clang as provided by Xcode or MacPorts does -not- use Apple's assembler, which means it should be multi-OS compatible for flags and instructions -- but: The best way to check for a feature (compiler flag, or specific instruction) is to actually test for it, just like we do for most other compiler flags, headers, and many functions (both OS-provided and other dependencies). </soapbox> Thanks for listening. I'm patching the MacPorts install of GNU Radio to remove this commit until a better solution is found. - MLD _______________________________________________ Discuss-gnuradio mailing list [email protected] https://lists.gnu.org/mailman/listinfo/discuss-gnuradio
