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David Tenty d4999fa5bd Build with _XOPEN_SOURCE defined on AIX 
Summary:
It is useful to build with _XOPEN_SOURCE defined on AIX, enabling X/Open
and POSIX compatibility mode, to work around stray macros and other
bugs in the headers provided by the system and build compiler.

This patch adds the config to cmake to build with _XOPEN_SOURCE defined
on AIX with a few exceptions. Google Test internals require access to
platform specific thread info constructs on AIX so in that case we build
with _ALL_SOURCE defined instead. Libclang also uses header which needs
_ALL_SOURCE on AIX so we leave that as is as well.

We also add building on AIX with the large file API and doing CMake
header checks with X/OPEN definitions so the results are consistent with
the environment that will be present in the build.

Reviewers: hubert.reinterpretcast, xingxue, andusy

Reviewed By: hubert.reinterpretcast

Subscribers: mgorny, jsji, cfe-commits, llvm-commits

Tags: #llvm, #clang

Differential Revision: https://reviews.llvm.org/D62533

llvm-svn: 362808
2019-06-07 15:45:25 +00:00
..
modules [CMake] Export CMAKE_CONFIGURATION_TYPES for the LLVM build-tree 2019-06-05 08:29:24 +00:00
platforms [NFC][CMake] Improve Status message in the iOS toolchain file 2019-03-13 15:35:21 +00:00
config-ix.cmake Build with _XOPEN_SOURCE defined on AIX 2019-06-07 15:45:25 +00:00
config.guess
dummy.cpp
nsis_icon.ico
nsis_logo.bmp
README

README 

See docs/CMake.html for instructions on how to build LLVM with CMake.