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build: fix compilation warning if dtrace doesn't work

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Check if dtrace should instrument object files only if dtrace
support is detected to work
This commit is contained in:
Saúl Ibarra Corretgé 2014-02-26 09:45:44 +01:00
parent b2341e7709
commit 515be33909
1 changed files with 11 additions and 11 deletions
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2
m4/dtrace.m4
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@ -30,7 +30,6 @@ _ACEOF
])
AS_IF([test "x$ac_cv_dtrace_works" = "xyes"],[
AC_DEFINE([HAVE_DTRACE], [1], [Enables DTRACE Support])
])
AC_CACHE_CHECK([if dtrace should instrument object files],
[ac_cv_dtrace_needs_objects],[
dnl DTrace on MacOSX does not use -G option
@ -52,6 +51,7 @@ _ACEOF
[ac_cv_dtrace_needs_objects=no])
rm -f conftest.d.o conftest.d conftest.h conftest.o conftest.c
])
])
AC_SUBST(DTRACEFLAGS) dnl TODO: test for -G on OSX
ac_cv_have_dtrace=yes
])])