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dba14814a6
Few math functions manipulate errno. They assumed that LLVM libc's errno is available. However, that might not be the case when these functions are used in a libc which does not use LLVM libc's errno. This change switches such uses of LLVM libc's errno to the normal public errno macro. This does not affect LLVM libc's build because the include order ensures we get LLVM libc's errno. Also, the header check rule ensures we are only including LLVM libc's errno.h.
LLVM libc ========= This directory and its subdirectories contain source code for llvm-libc, a retargetable implementation of the C standard library. LLVM is open source software. You may freely distribute it under the terms of the license agreement found in LICENSE.txt.