diff --git a/elfutils-0.170-sys-ptrace.patch b/elfutils-0.170-sys-ptrace.patch
new file mode 100644
index 0000000..68eb415
--- /dev/null
+++ b/elfutils-0.170-sys-ptrace.patch
@@ -0,0 +1,113 @@
+commit 4482d0009a99b1773f2426479b666b08f57af9d5
+Author: Mark Wielaard <mark@klomp.org>
+Date:   Thu Feb 15 14:44:18 2018 +0100
+
+    Include sys/ptrace.h as early as possible.
+    
+    On some systems, at least on Fedora 27 ppc64le with glibc 2.26-24 and
+    kernel 4.14.18-300, including sys/ptrace.h late (after signal.h or
+    sys/wait.h for example) will cause issues and produce errors like:
+    
+    In file included from /usr/include/asm/sigcontext.h:12:0,
+                     from /usr/include/bits/sigcontext.h:30,
+                     from /usr/include/signal.h:287,
+                     from /usr/include/sys/wait.h:36,
+                     from linux-pid-attach.c:38:
+    /usr/include/sys/ptrace.h:73:3: error: expected identifier before numeric constant
+       PTRACE_GETREGS = 12,
+       ^
+    
+    Swapping the include order fixes these issues.
+    
+    Signed-off-by: Mark Wielaard <mark@klomp.org>
+
+diff --git a/backends/ppc_initreg.c b/backends/ppc_initreg.c
+index 69d623b..3e4432f 100644
+--- a/backends/ppc_initreg.c
++++ b/backends/ppc_initreg.c
+@@ -30,13 +30,14 @@
+ # include <config.h>
+ #endif
+ 
+-#include "system.h"
+ #include <stdlib.h>
+ #if defined(__powerpc__) && defined(__linux__)
+-# include <sys/user.h>
+ # include <sys/ptrace.h>
++# include <sys/user.h>
+ #endif
+ 
++#include "system.h"
++
+ #define BACKEND ppc_
+ #include "libebl_CPU.h"
+ 
+diff --git a/libdwfl/linux-pid-attach.c b/libdwfl/linux-pid-attach.c
+index e6a5c41..2ab4109 100644
+--- a/libdwfl/linux-pid-attach.c
++++ b/libdwfl/linux-pid-attach.c
+@@ -35,7 +35,6 @@
+ #include <sys/types.h>
+ #include <sys/stat.h>
+ #include <fcntl.h>
+-#include <sys/wait.h>
+ #include <dirent.h>
+ #include <unistd.h>
+ 
+@@ -43,6 +42,7 @@
+ 
+ #include <sys/ptrace.h>
+ #include <sys/syscall.h>
++#include <sys/wait.h>
+ 
+ static bool
+ linux_proc_pid_is_stopped (pid_t pid)
+diff --git a/tests/backtrace-child.c b/tests/backtrace-child.c
+index 2c27414..9c6ba94 100644
+--- a/tests/backtrace-child.c
++++ b/tests/backtrace-child.c
+@@ -81,7 +81,6 @@
+ #include <config.h>
+ #include <assert.h>
+ #include <stdlib.h>
+-#include <signal.h>
+ #include <errno.h>
+ #include <string.h>
+ #include <pthread.h>
+@@ -100,6 +99,7 @@ main (int argc __attribute__ ((unused)), char **argv)
+ 
+ #else /* __linux__ */
+ #include <sys/ptrace.h>
++#include <signal.h>
+ 
+ #if __GNUC__ > 4 || (__GNUC__ == 4 && __GNUC_MINOR__ >= 5)
+ #define NOINLINE_NOCLONE __attribute__ ((noinline, noclone))
+diff --git a/tests/backtrace-dwarf.c b/tests/backtrace-dwarf.c
+index 2dc8a9a..7ff826c 100644
+--- a/tests/backtrace-dwarf.c
++++ b/tests/backtrace-dwarf.c
+@@ -17,7 +17,6 @@
+ 
+ #include <config.h>
+ #include <assert.h>
+-#include <signal.h>
+ #include <inttypes.h>
+ #include <stdio_ext.h>
+ #include <locale.h>
+@@ -25,7 +24,6 @@
+ #include <error.h>
+ #include <unistd.h>
+ #include <sys/types.h>
+-#include <sys/wait.h>
+ #include ELFUTILS_HEADER(dwfl)
+ 
+ #ifndef __linux__
+@@ -40,6 +38,8 @@ main (int argc __attribute__ ((unused)), char **argv)
+ 
+ #else /* __linux__ */
+ #include <sys/ptrace.h>
++#include <sys/wait.h>
++#include <signal.h>
+ 
+ #define main cleanup_13_main
+ #include "cleanup-13.c"
diff --git a/elfutils.spec b/elfutils.spec
index d300fb8..53a63ff 100644
--- a/elfutils.spec
+++ b/elfutils.spec
@@ -22,6 +22,7 @@ Source: %{?source_url}%{name}-%{version}.tar.bz2
 # Patches
 Patch1: elfutils-0.170-dwarf_aggregate_size.patch
 Source1: testfile-sizes3.o.bz2
+Patch2: elfutils-0.170-sys-ptrace.patch
 
 Requires: elfutils-libelf%{depsuffix} = %{version}-%{release}
 Requires: elfutils-libs%{depsuffix} = %{version}-%{release}
@@ -175,6 +176,7 @@ profiling) of processes.
 # Apply patches
 %patch1 -p1 -b .aggregate_size
 cp %SOURCE1 tests/
+%patch2 -p1 -b .sys_ptrace
 
 find . -name \*.sh ! -perm -0100 -print | xargs chmod +x
 
@@ -301,6 +303,9 @@ fi
 %endif
 
 %changelog
+* Thu Feb 15 2018 Mark Wielaard <mjw@fedoraproject.org>
+- Add elfutils-0.170-sys-ptrace.patch
+
 * Fri Feb 09 2018 Igor Gnatenko <ignatenkobrain@fedoraproject.org> - 0.170-7
 - Escape macros in %%changelog