Re: Mac OS X using wrong SDK - serious build issue

[Greg Troxel <gdt%ir.bbn.com@localhost>]

If I do

  xcrun --sdk macosx10.9 clang -o foo foo.c

it builds for 10.9 (and gives me a compile error for using openat).

If I do

  export SDKROOT=macosx10.9

then a plain compile:

  clang -o foo foo.c

errors out with openat.


The xcrun man page

  https://developer.apple.com/library/mac/documentation/Darwin/Reference/ManPages/man1/xcrun.1.html

says that the default SDK is the boot system.  So this is just a bug in
OSX, it seems.

I guess the interesting questions are if others are seeing this and what
to do about it.

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