Fix out-of-tree build

examples/Makefile.am

@@ -1,5 +1,7 @@
 noinst_PROGRAMS		= mic mis		# Build, but don't install
 
+AM_CPPFLAGS		= -I$(top_srcdir)/src
+
 mic_SOURCES		= mic.c
 mic_CFLAGS		= -g
 mic_LDADD		= ../src/libiperf.la
@@ -9,4 +11,3 @@ mis_SOURCES		= mis.c
 mis_CFLAGS		= -g
 mis_LDADD		= ../src/libiperf.la
 mis_LDFLAGS		= -g
-