Problem: perf tools build cannot be switched off

Makefile.am

@@ -254,6 +254,7 @@ src_libzmq_la_CPPFLAGS += ${pgm_CFLAGS}
 src_libzmq_la_LIBADD += ${pgm_LIBS}
 endif
 
+if ENABLE_PERF
 noinst_PROGRAMS = \
 	perf/local_lat \
 	perf/remote_lat \
@@ -279,6 +280,7 @@ perf_inproc_lat_SOURCES = perf/inproc_lat.cpp
 
 perf_inproc_thr_LDADD = src/libzmq.la
 perf_inproc_thr_SOURCES = perf/inproc_thr.cpp
+endif
 
 bin_PROGRAMS = tools/curve_keygen
 

configure.ac

@@ -346,6 +346,14 @@ if test "x$zmq_enable_eventfd" = "xyes"; then
         [AC_DEFINE(ZMQ_HAVE_EVENTFD, 1, [Have eventfd extension.])])
 fi
 
+# Conditionally build performance measurement tools
+AC_ARG_ENABLE([perf],
+    [AS_HELP_STRING([--enable-perf], [Build performance measurement tools [default=yes].])],
+    [zmq_enable_perf=$enableval],
+    [zmq_enable_perf=yes])
+
+AM_CONDITIONAL(ENABLE_PERF, test "x$zmq_enable_perf" = "xyes")
+
 # Use c++ in subsequent tests
 AC_LANG_PUSH(C++)