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-rw-r--r--llvm/include/llvm/Config/config.h.cmake4
-rw-r--r--llvm/lib/Support/Unix/Memory.inc4
2 files changed, 2 insertions, 6 deletions
diff --git a/llvm/include/llvm/Config/config.h.cmake b/llvm/include/llvm/Config/config.h.cmake
index e0f68afa38c..239a0b38e58 100644
--- a/llvm/include/llvm/Config/config.h.cmake
+++ b/llvm/include/llvm/Config/config.h.cmake
@@ -160,10 +160,6 @@
/* Define to 1 if you have a working `mmap' system call. */
#undef HAVE_MMAP
-/* Define if mmap() uses MAP_ANONYMOUS to map anonymous pages, or undefine if
- it uses MAP_ANON */
-#undef HAVE_MMAP_ANONYMOUS
-
/* Define if mmap() can map files into memory */
#undef HAVE_MMAP_FILE
diff --git a/llvm/lib/Support/Unix/Memory.inc b/llvm/lib/Support/Unix/Memory.inc
index 88b2a28c3a1..6bbaf509d81 100644
--- a/llvm/lib/Support/Unix/Memory.inc
+++ b/llvm/lib/Support/Unix/Memory.inc
@@ -93,7 +93,7 @@ Memory::allocateMappedMemory(size_t NumBytes,
int fd = -1;
int MMFlags = MAP_PRIVATE |
-#ifdef HAVE_MMAP_ANONYMOUS
+#ifdef MAP_ANONYMOUS
MAP_ANONYMOUS
#else
MAP_ANON
@@ -179,7 +179,7 @@ Memory::AllocateRWX(size_t NumBytes, const MemoryBlock* NearBlock,
int fd = -1;
int flags = MAP_PRIVATE |
-#ifdef HAVE_MMAP_ANONYMOUS
+#ifdef MAP_ANONYMOUS
MAP_ANONYMOUS
#else
MAP_ANON
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