docs: cmake build
[m6w6/libmemcached] / m4 / pandora_enable_dtrace.m4
1 dnl Copyright (C) 2009 Sun Microsystems, Inc.
2 dnl This file is free software; Sun Microsystems, Inc.
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=no@:>@])],
13 [ac_cv_enable_dtrace="$enableval"],
14 [ac_cv_enable_dtrace="no"])
15
16 AS_IF([test "$ac_cv_enable_dtrace" = "yes"],[
17 AC_CHECK_PROGS([DTRACE], [dtrace])
18 AC_CHECK_HEADERS(sys/sdt.h)
19
20 AS_IF([test "x$ac_cv_prog_DTRACE" = "xdtrace" -a "x${ac_cv_header_sys_sdt_h}" = "xyes"],[
21
22 AC_CACHE_CHECK([if dtrace works],[ac_cv_dtrace_works],[
23 cat >conftest.d <<_ACEOF
24 provider Example {
25 probe increment(int);
26 };
27 _ACEOF
28 $DTRACE -h -o conftest.h -s conftest.d 2>/dev/zero
29 AS_IF([test $? -eq 0],[ac_cv_dtrace_works=yes],
30 [ac_cv_dtrace_works=no])
31 rm -f conftest.h conftest.d
32 ])
33 AS_IF([test "x$ac_cv_dtrace_works" = "xyes"],[
34 AC_DEFINE([HAVE_DTRACE], [1], [Enables DTRACE Support])
35 ])
36 AC_CACHE_CHECK([if dtrace should instrument object files],
37 [ac_cv_dtrace_needs_objects],[
38 dnl DTrace on MacOSX does not use -G option
39 cat >conftest.d <<_ACEOF
40 provider Example {
41 probe increment(int);
42 };
43 _ACEOF
44 $DTRACE -G -o conftest.d.o -s conftest.d 2>/dev/zero
45 AS_IF([test $? -eq 0],[ac_cv_dtrace_needs_objects=yes],
46 [ac_cv_dtrace_needs_objects=no])
47 rm -f conftest.d.o conftest.d
48 ])
49 AC_SUBST(DTRACEFLAGS) dnl TODO: test for -G on OSX
50 ac_cv_have_dtrace=yes
51 ])])
52
53 AM_CONDITIONAL([HAVE_DTRACE], [test "x$ac_cv_dtrace_works" = "xyes"])
54 AM_CONDITIONAL([DTRACE_NEEDS_OBJECTS],
55 [test "x$ac_cv_dtrace_needs_objects" = "xyes"])
56
57 ])
58 dnl ---------------------------------------------------------------------------
59 dnl End Macro: PANDORA_ENABLE_DTRACE
60 dnl ---------------------------------------------------------------------------