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[m6w6/libmemcached] / m4 / pandora_enable_dtrace.m4
1 dnl Copyright (C) 2009 Sun Microsystems
2 dnl This file is free software; Sun Microsystems
3 dnl gives unlimited permission to copy and/or distribute it,
4 dnl with or without modifications, as long as this notice is preserved.
5
6 dnl ---------------------------------------------------------------------------
7 dnl Macro: PANDORA_ENABLE_DTRACE
8 dnl ---------------------------------------------------------------------------
9 AC_DEFUN([PANDORA_ENABLE_DTRACE],[
10 AC_ARG_ENABLE([dtrace],
11 [AS_HELP_STRING([--enable-dtrace],
12 [Build with support for the DTRACE. @<:@default=off@:>@])],
13 [ac_cv_enable_dtrace="yes"],
14 [ac_cv_enable_dtrace="no"])
15
16 AS_IF([test "$ac_cv_enable_dtrace" = "yes"],[
17 AC_CHECK_PROGS([DTRACE], [dtrace])
18 AS_IF([test "x$ac_cv_prog_DTRACE" = "xdtrace"],[
19 AC_DEFINE([HAVE_DTRACE], [1], [Enables DTRACE Support])
20 AC_MSG_CHECKING([if dtrace should instrument object files])
21 dnl DTrace on MacOSX does not use -G option
22 cat >conftest.d <<_ACEOF
23 provider Example {
24 probe increment(int);
25 };
26 _ACEOF
27 $DTRACE -G -o conftest.d.o -s conftest.d 2>/dev/zero
28 AS_IF([test $? -eq 0],[ac_cv_dtrace_needs_objects=yes],
29 [ac_cv_dtrace_needs_objects=no])
30 rm -f conftest.d.o conftest.d
31 AC_MSG_RESULT($ac_cv_dtrace_needs_objects)
32 AC_SUBST(DTRACEFLAGS) dnl TODO: test for -G on OSX
33 ac_cv_have_dtrace=yes
34 ])])
35
36 AM_CONDITIONAL([HAVE_DTRACE], [test "x$ac_cv_have_dtrace" = "xyes"])
37 AM_CONDITIONAL([DTRACE_NEEDS_OBJECTS],
38 [test "x$ac_cv_dtrace_needs_objects" = "xyes"])
39
40 ])
41 dnl ---------------------------------------------------------------------------
42 dnl End Macro: PANDORA_ENABLE_DTRACE
43 dnl ---------------------------------------------------------------------------