[libcxxabi] r304359 - Remove requirement for libunwind sources. Patch by Shiz.

[Eric Fiselier via cfe-commits]

Author: ericwf
Date: Wed May 31 17:11:42 2017
New Revision: 304359

URL: http://llvm.org/viewvc/llvm-project?rev=304359&view=rev
Log:
Remove requirement for libunwind sources. Patch by Shiz.

As per r241993, libunwind_ext.h is not used anymore, and thus only the public libunwind includes are needed.
This eases distro packaging efforts and removes an unneeded requirement for out-of-tree building.

Reviewed as D33178

Modified:
    libcxxabi/trunk/CMakeLists.txt

Modified: libcxxabi/trunk/CMakeLists.txt
URL: http://llvm.org/viewvc/llvm-project/libcxxabi/trunk/CMakeLists.txt?rev=304359&r1=304358&r2=304359&view=diff
==============================================================================
--- libcxxabi/trunk/CMakeLists.txt (original)
+++ libcxxabi/trunk/CMakeLists.txt Wed May 31 17:11:42 2017
@@ -504,21 +504,6 @@ if (LIBCXXABI_USE_LLVM_UNWINDER OR LLVM_
     NO_DEFAULT_PATH
   )
 
-  find_path(
-    LIBCXXABI_LIBUNWIND_SOURCES
-    libunwind_ext.h
-    PATHS ${LIBCXXABI_LIBUNWIND_PATH}/src/
-          ${LIBCXXABI_LIBUNWIND_INCLUDES}/../src/
-          ${LLVM_MAIN_SRC_DIR}/projects/libunwind/src/
-          ${LLVM_MAIN_SRC_DIR}/runtimes/libunwind/src/
-    NO_DEFAULT_PATH
-  )
-
-  if (LIBCXXABI_LIBUNWIND_SOURCES STREQUAL "LIBCXXABI_LIBUNWIND_SOURCES-NOTFOUND")
-    message(WARNING "LIBCXXABI_LIBUNWIND_SOURCES was not specified and couldn't be infered.")
-    set(LIBCXXABI_LIBUNWIND_SOURCES "")
-  endif()
-
   if (LIBCXXABI_LIBUNWIND_INCLUDES_INTERNAL STREQUAL "LIBCXXABI_LIBUNWIND_INCLUDES_INTERNAL-NOTFOUND")
     set(LIBCXXABI_LIBUNWIND_INCLUDES_INTERNAL "")
   endif()
@@ -526,10 +511,6 @@ if (LIBCXXABI_USE_LLVM_UNWINDER OR LLVM_
   if (NOT LIBCXXABI_LIBUNWIND_INCLUDES_INTERNAL STREQUAL "")
     include_directories("${LIBCXXABI_LIBUNWIND_INCLUDES_INTERNAL}")
   endif()
-
-  if (NOT LIBCXXABI_LIBUNWIND_SOURCES STREQUAL "")
-    include_directories("${LIBCXXABI_LIBUNWIND_SOURCES}")
-  endif()
 endif()
 
 # Add source code. This also contains all of the logic for deciding linker flags