[PATCH] D29997: [libunwind][CMake] Use libc++ headers when available

[Petr Hosek via Phabricator via llvm-commits]

This revision was automatically updated to reflect the committed changes.
Closed by commit rL295285: [libunwind][CMake] Use libc++ headers when available (authored by phosek).

Changed prior to commit:
  https://reviews.llvm.org/D29997?vs=88573&id=88657#toc

Repository:
  rL LLVM

https://reviews.llvm.org/D29997

Files:
  libunwind/trunk/CMakeLists.txt


Index: libunwind/trunk/CMakeLists.txt
===================================================================
--- libunwind/trunk/CMakeLists.txt
+++ libunwind/trunk/CMakeLists.txt
@@ -282,4 +282,24 @@
 
 include_directories(include)
 
+find_path(
+  LIBUNWIND_LIBCXX_INCLUDES_INTERNAL
+  __libcpp_version
+  PATHS ${LLVM_MAIN_SRC_DIR}/projects/libcxx/include
+        ${LLVM_MAIN_SRC_DIR}/runtimes/libcxx/include
+  NO_DEFAULT_PATH
+)
+if ((NOT LIBUNWIND_STANDALONE_BUILD OR HAVE_LIBCXX) AND
+    IS_DIRECTORY "${LIBUNWIND_LIBCXX_INCLUDES_INTERNAL}")
+  set(LIBUNWIND_CXX_INCLUDE_PATHS_DEFAULT "${LIBUNWIND_LIBCXX_INCLUDES_INTERNAL}")
+endif()
+
+set(LIBUNWIND_CXX_INCLUDE_PATHS "${LIBUNWIND_CXX_INCLUDE_PATHS_DEFAULT}" CACHE PATH
+    "Paths to C++ header directories separated by ';'.")
+
+if (NOT LIBUNWIND_CXX_INCLUDE_PATHS STREQUAL "")
+  list(APPEND LIBUNWIND_CXX_FLAGS -nostdinc++)
+  include_directories("${LIBUNWIND_CXX_INCLUDE_PATHS}")
+endif()
+
 add_subdirectory(src)


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