it seems to be related to Apple removing support for libstdc++. Could it be that you have something related to "deployment target" (MACOSX_DEPLOYMENT_TARGET ?) in your default environment variables, or similar settings in Xcode? Or perhaps CPLUS_INCLUDE_PATH is set somewhere?
Perhaps your "XcodeDefault.xctoolchain" - that's where that wretched C++ cmath header comes from - is pointing to a wrong toolchain? Can you search for the files named "cmath" on the machine? -- You received this message because you are subscribed to the Google Groups "sage-devel" group. To unsubscribe from this group and stop receiving emails from it, send an email to sage-devel+unsubscr...@googlegroups.com. To view this discussion on the web visit https://groups.google.com/d/msgid/sage-devel/CAAWYfq3HQKjr81msB2GHbH-h4hNAfbdj%2BE1pYa%2BfB9Fph6PK6Q%40mail.gmail.com.
