[PATCH] D12644: Using -isysroot on Apple platform

[Steven Wu via cfe-commits]

steven_wu created this revision.
steven_wu added a reviewer: EricWF.
steven_wu added a subscriber: cfe-commits.

--sysroot might cause inconsistency between the header gets used and the
library gets linked on Apple platform. Use -isysroot instead.

http://reviews.llvm.org/D12644

Files:
  CMakeLists.txt

Index: CMakeLists.txt
===================================================================
--- CMakeLists.txt
+++ CMakeLists.txt
@@ -209,7 +209,11 @@
 # Target flags ================================================================
 add_flags_if(LIBCXX_BUILD_32_BITS -m32)
 add_flags_if(LIBCXX_TARGET_TRIPLE "-target ${LIBCXX_TARGET_TRIPLE}")
-add_flags_if(LIBCXX_SYSROOT "--sysroot ${LIBCXX_SYSROOT}")
+if (APPLE)
+  add_flags_if(LIBCXX_SYSROOT "-isysroot ${LIBCXX_SYSROOT}")
+else
+  add_flags_if(LIBCXX_SYSROOT "--sysroot ${LIBCXX_SYSROOT}")
+endif()
 add_flags_if(LIBCXX_GCC_TOOLCHAIN "-gcc-toolchain ${LIBCXX_GCC_TOOLCHAIN}")
 
 # Warning flags ===============================================================


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