diff --git a/tools/build/Build.include b/tools/build/Build.include
index 1dcb95e76f70f7ec30b964d44c1c28586fa739a2..9d6f97a7c1aaae39f7344ca610746e55a8b8b4b2 100644
--- a/tools/build/Build.include
+++ b/tools/build/Build.include
@@ -95,4 +95,4 @@ cxx_flags = -Wp,-MD,$(depfile),-MT,$@ $(CXXFLAGS) -D"BUILD_STR(s)=\#s" $(CXXFLAG
 ###
 ## HOSTCC C flags
 
-host_c_flags = -Wp,-MD,$(depfile),-MT,$@ $(CHOSTFLAGS) -D"BUILD_STR(s)=\#s" $(CHOSTFLAGS_$(basetarget).o) $(CHOSTFLAGS_$(obj))
+host_c_flags = -MD -MF $(depfile) -MT $@ $(CHOSTFLAGS) -D"BUILD_STR(s)=\#s" $(CHOSTFLAGS_$(basetarget).o) $(CHOSTFLAGS_$(obj))
diff --git a/tools/perf/pmu-events/jevents.c b/tools/perf/pmu-events/jevents.c
index 41611d7f9873c4d4168a33bc878df69b7ca073b9..51333bee190cd0586d0b1b67a050fb8476aafcf1 100644
--- a/tools/perf/pmu-events/jevents.c
+++ b/tools/perf/pmu-events/jevents.c
@@ -35,6 +35,7 @@
 #include <stdlib.h>
 #include <errno.h>
 #include <string.h>
+#include <strings.h>
 #include <ctype.h>
 #include <unistd.h>
 #include <stdarg.h>
diff --git a/tools/perf/pmu-events/json.c b/tools/perf/pmu-events/json.c
index f67bbb0aa36e572c46b5847736cc3d3efa188f8f..a72c70a97fabb4be0ba47779a622611571f9e091 100644
--- a/tools/perf/pmu-events/json.c
+++ b/tools/perf/pmu-events/json.c
@@ -38,7 +38,6 @@
 #include <unistd.h>
 #include "jsmn.h"
 #include "json.h"
-#include <linux/kernel.h>
 
 
 static char *mapfile(const char *fn, size_t *size)