From f9f796e79b95a70346a945a589e833b71123e983 Mon Sep 17 00:00:00 2001
From: Eric Fiselier <eric@efcs.ca>
Date: Tue, 13 Oct 2015 22:12:02 +0000
Subject: [libcxx] Capture configuration information when installing the libc++
 headers

Summary:
Hi all,

This patch is a successor to D11963. However it has changed dramatically and I felt it would be best to start a new review thread.

Please read the design documentation added in this patch for a description of how it works.

Reviewers: mclow.lists, danalbert, jroelofs, EricWF

Subscribers: vkalintiris, rnk, ed, espositofulvio, asl, eugenis, cfe-commits

Differential Revision: http://reviews.llvm.org/D13407

llvm-svn: 250235
---
 libcxx/cmake/Modules/HandleLibcxxFlags.cmake | 16 ++++++++++++++++
 1 file changed, 16 insertions(+)

(limited to 'libcxx/cmake')

diff --git a/libcxx/cmake/Modules/HandleLibcxxFlags.cmake b/libcxx/cmake/Modules/HandleLibcxxFlags.cmake
index 223b7b7b8a6..a9e43eaece9 100644
--- a/libcxx/cmake/Modules/HandleLibcxxFlags.cmake
+++ b/libcxx/cmake/Modules/HandleLibcxxFlags.cmake
@@ -49,6 +49,22 @@ macro(define_if_not condition def)
   endif()
 endmacro()
 
+macro(config_define_if condition def)
+  if (${condition})
+    set(${def} ON)
+    add_definitions(-D${def})
+    set(LIBCXX_NEEDS_SITE_CONFIG ON)
+  endif()
+endmacro()
+
+macro(config_define_if_not condition def)
+  if (NOT ${condition})
+    set(${def} ON)
+    add_definitions(-D${def})
+    set(LIBCXX_NEEDS_SITE_CONFIG ON)
+  endif()
+endmacro()
+
 # Add a specified list of flags to both 'LIBCXX_COMPILE_FLAGS' and
 # 'LIBCXX_LINK_FLAGS'.
 macro(add_flags)
-- 
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