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Viewing changes to m4/pandora_enable_dtrace.m4

  • Committer: Brian Aker
  • Date: 2009-02-27 21:38:40 UTC
  • Revision ID: brian@tangent.org-20090227213840-r9hq3sfk8d8qrg72
Code cleanup in signal_handler.cc

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m4/pandora_enable_dtrace.m4
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dnl  Copyright (C) 2009 Sun Microsystems
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dnl This file is free software; Sun Microsystems
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dnl gives unlimited permission to copy and/or distribute it,
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dnl with or without modifications, as long as this notice is preserved.
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dnl ---------------------------------------------------------------------------
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dnl Macro: PANDORA_ENABLE_DTRACE
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dnl ---------------------------------------------------------------------------
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AC_DEFUN([PANDORA_ENABLE_DTRACE],[
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  AC_ARG_ENABLE([dtrace],
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    [AS_HELP_STRING([--enable-dtrace],
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            [Build with support for the DTRACE. @<:@default=off@:>@])],
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    [ac_cv_enable_dtrace="yes"],
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    [ac_cv_enable_dtrace="no"])
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  AS_IF([test "$ac_cv_enable_dtrace" = "yes"],[
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    AC_CHECK_PROGS([DTRACE], [dtrace])
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    AS_IF([test "x$ac_cv_prog_DTRACE" = "xdtrace"],[
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      AC_DEFINE([HAVE_DTRACE], [1], [Enables DTRACE Support])
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      AC_MSG_CHECKING([if dtrace should instrument object files])
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      dnl DTrace on MacOSX does not use -G option
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      cat >conftest.d <<_ACEOF
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provider Example {
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  probe increment(int);
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};
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_ACEOF
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      $DTRACE -G -o conftest.d.o -s conftest.d 2>/dev/zero
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      AS_IF([test $? -eq 0],[ac_cv_dtrace_needs_objects=yes],
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            [ac_cv_dtrace_needs_objects=no])
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      rm -f conftest.d.o conftest.d
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      AC_MSG_RESULT($ac_cv_dtrace_needs_objects)
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      AC_SUBST(DTRACEFLAGS) dnl TODO: test for -G on OSX
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      ac_cv_have_dtrace=yes
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    ])])
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AM_CONDITIONAL([HAVE_DTRACE], [test "x$ac_cv_have_dtrace" = "xyes"])
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AM_CONDITIONAL([DTRACE_NEEDS_OBJECTS],
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               [test "x$ac_cv_dtrace_needs_objects" = "xyes"])
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])
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dnl ---------------------------------------------------------------------------
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dnl End Macro: PANDORA_ENABLE_DTRACE
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dnl ---------------------------------------------------------------------------