[PATCH] D41621: [cmake] Fix path problems when cross compiling.

[Don Hinton via Phabricator via cfe-commits]

hintonda created this revision.
hintonda added reviewers: EricWF, compnerd, phosek, beanz.
Herald added a subscriber: mgorny.

When cross compiling, users can set CMAKE_FIND_ROOT_PATH to
the sysroot of the TARGET system which adds the sysroot prefix to the
paths used in the FIND_XXX commands.  Since these FIND_PATH commands
use absolute paths found on the HOST system, pass
NO_CMAKE_FIND_ROOT_PATH to keep the prefix from being added.


https://reviews.llvm.org/D41621

Files:
  CMakeLists.txt


Index: CMakeLists.txt
===================================================================
--- CMakeLists.txt
+++ CMakeLists.txt
@@ -329,7 +329,8 @@
   PATHS ${LLVM_MAIN_SRC_DIR}/projects/libcxx/include
         ${LLVM_MAIN_SRC_DIR}/runtimes/libcxx/include
   NO_DEFAULT_PATH
-)
+  NO_CMAKE_FIND_ROOT_PATH
+  )
 if ((NOT LIBUNWIND_STANDALONE_BUILD OR HAVE_LIBCXX) AND
     IS_DIRECTORY "${LIBUNWIND_LIBCXX_INCLUDES_INTERNAL}")
   set(LIBUNWIND_CXX_INCLUDE_PATHS_DEFAULT "${LIBUNWIND_LIBCXX_INCLUDES_INTERNAL}")


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