Index: llvm/trunk/cmake/config-ix.cmake
===================================================================
--- llvm/trunk/cmake/config-ix.cmake
+++ llvm/trunk/cmake/config-ix.cmake
@@ -207,7 +207,6 @@
 check_symbol_exists(getrlimit "sys/types.h;sys/time.h;sys/resource.h" HAVE_GETRLIMIT)
 check_symbol_exists(posix_spawn spawn.h HAVE_POSIX_SPAWN)
 check_symbol_exists(pread unistd.h HAVE_PREAD)
-check_symbol_exists(realpath stdlib.h HAVE_REALPATH)
 check_symbol_exists(sbrk unistd.h HAVE_SBRK)
 check_symbol_exists(strerror string.h HAVE_STRERROR)
 check_symbol_exists(strerror_r string.h HAVE_STRERROR_R)
Index: llvm/trunk/include/llvm/Config/config.h.cmake
===================================================================
--- llvm/trunk/include/llvm/Config/config.h.cmake
+++ llvm/trunk/include/llvm/Config/config.h.cmake
@@ -154,9 +154,6 @@
 /* Have pthread_rwlock_init */
 #cmakedefine HAVE_PTHREAD_RWLOCK_INIT ${HAVE_PTHREAD_RWLOCK_INIT}
 
-/* Define to 1 if you have the `realpath' function. */
-#cmakedefine HAVE_REALPATH ${HAVE_REALPATH}
-
 /* Define to 1 if you have the `sbrk' function. */
 #cmakedefine HAVE_SBRK ${HAVE_SBRK}
 
Index: llvm/trunk/utils/gn/secondary/llvm/include/llvm/Config/BUILD.gn
===================================================================
--- llvm/trunk/utils/gn/secondary/llvm/include/llvm/Config/BUILD.gn
+++ llvm/trunk/utils/gn/secondary/llvm/include/llvm/Config/BUILD.gn
@@ -211,7 +211,6 @@
       "HAVE_PTHREAD_H=",
       "HAVE_PTHREAD_MUTEX_LOCK=",
       "HAVE_PTHREAD_RWLOCK_INIT=",
-      "HAVE_REALPATH=",
       "HAVE_SBRK=",
       "HAVE_SETENV=",
       "HAVE_SETRLIMIT=",
@@ -250,7 +249,6 @@
       "HAVE_PTHREAD_H=1",
       "HAVE_PTHREAD_MUTEX_LOCK=1",
       "HAVE_PTHREAD_RWLOCK_INIT=1",
-      "HAVE_REALPATH=1",
       "HAVE_SBRK=1",
       "HAVE_SETENV=1",
       "HAVE_SETRLIMIT=1",