Added patch for missing sys/ustat.h header file

in llvm-5.0.1 build. Fix for cloudera#59

buildall.sh

@@ -89,8 +89,8 @@ fi
     LLVM_VERSION=5.0.1 $SOURCE_DIR/source/llvm/build.sh
     LLVM_VERSION=5.0.1-asserts $SOURCE_DIR/source/llvm/build.sh
   fi
-  LLVM_VERSION=5.0.1-p1 $SOURCE_DIR/source/llvm/build.sh
-  LLVM_VERSION=5.0.1-asserts-p1 $SOURCE_DIR/source/llvm/build.sh
+  LLVM_VERSION=5.0.1-p2 $SOURCE_DIR/source/llvm/build.sh
+  LLVM_VERSION=5.0.1-asserts-p2 $SOURCE_DIR/source/llvm/build.sh
 )
 
 ################################################################################

source/llvm/llvm-5.0.1-patches/0002-PATCH-Fix-for-missing-sys-ustat.patch

@@ -0,0 +1,31 @@
+--- llvm-5.0.1.src-p1.orig/projects/compiler-rt/lib/sanitizer_common/sanitizer_platform_limits_posix.cc	2019-12-18 09:07:53.847300486 -0600
++++ llvm-5.0.1.src-p1/projects/compiler-rt/lib/sanitizer_common/sanitizer_platform_limits_posix.cc	2019-12-18 09:12:02.778397695 -0600
+@@ -159,7 +159,6 @@ typedef struct user_fpregs elf_fpregset_
+ # include <sys/procfs.h>
+ #endif
+ #include <sys/user.h>
+-#include <sys/ustat.h>
+ #include <linux/cyclades.h>
+ #include <linux/if_eql.h>
+ #include <linux/if_plip.h>
+@@ -252,7 +251,19 @@ namespace __sanitizer {
+ #endif // SANITIZER_LINUX || SANITIZER_FREEBSD
+
+ #if SANITIZER_LINUX && !SANITIZER_ANDROID
+-  unsigned struct_ustat_sz = sizeof(struct ustat);
++// Use pre-computed size of struct ustat to avoid <sys/ustat.h> which
++// has been removed from glibc 2.28.
++#if defined(__aarch64__) || defined(__s390x__) || defined (__mips64) \
++  || defined(__powerpc64__) || defined(__arch64__) || defined(__sparcv9) \
++  || defined(__x86_64__)
++#define SIZEOF_STRUCT_USTAT 32
++#elif defined(__arm__) || defined(__i386__) || defined(__mips__) \
++  || defined(__powerpc__) || defined(__s390__)
++#define SIZEOF_STRUCT_USTAT 20
++#else
++#error Unknown size of struct ustat
++#endif
++  unsigned struct_ustat_sz = SIZEOF_STRUCT_USTAT;
+   unsigned struct_rlimit64_sz = sizeof(struct rlimit64);
+   unsigned struct_statvfs64_sz = sizeof(struct statvfs64);
+ #endif // SANITIZER_LINUX && !SANITIZER_ANDROID