[cmake] [libcxxabi] Fix find_path() problems when cross compiling
When CMAKE_SYSROOT or CMAKE_FIND_ROOT_PATH is set, cmake
recommends setting CMAKE_FIND_ROOT_PATH_MODE_INCLUDE=ONLY
globally which means find_path() always prepends CMAKE_SYSROOT or
CMAKE_FIND_ROOT_PATH to all paths used in the search.
However, these find_path() invocations are looking for paths in
the libcxx and libunwind projects on the host system, not the
target system, which can be done by passing
NO_CMAKE_FIND_ROOT_PATH.
Differential Revision: https://reviews.llvm.org/D41623
git-svn-id: https://llvm.org/svn/llvm-project/libcxxabi/trunk@323145 91177308-0d34-0410-b5e6-96231b3b80d8
diff --git a/CMakeLists.txt b/CMakeLists.txt
index dd43da2..35eb130 100644
--- a/CMakeLists.txt
+++ b/CMakeLists.txt
@@ -115,6 +115,7 @@
${CMAKE_BINARY_DIR}/${LIBCXXABI_LIBCXX_INCLUDES}
${LIBCXXABI_LIBCXX_INCLUDE_DIRS}
${LLVM_INCLUDE_DIR}/c++/v1
+ NO_CMAKE_FIND_ROOT_PATH
)
set(LIBCXXABI_LIBCXX_INCLUDES "${LIBCXXABI_LIBCXX_INCLUDES}" CACHE PATH
@@ -127,6 +128,7 @@
${LIBCXXABI_LIBCXX_INCLUDES}/../
${LIBCXXABI_LIBCXX_SRC_DIRS}
NO_DEFAULT_PATH
+ NO_CMAKE_FIND_ROOT_PATH
)
if (LIBCXXABI_LIBCXX_PATH STREQUAL "LIBCXXABI_LIBCXX_PATH-NOTFOUND")
@@ -425,6 +427,7 @@
${LLVM_MAIN_SRC_DIR}/projects/libunwind/include
${LLVM_MAIN_SRC_DIR}/runtimes/libunwind/include
NO_DEFAULT_PATH
+ NO_CMAKE_FIND_ROOT_PATH
)
if (LIBCXXABI_LIBUNWIND_INCLUDES_INTERNAL STREQUAL "LIBCXXABI_LIBUNWIND_INCLUDES_INTERNAL-NOTFOUND")