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build: update dtrace m4 check for sunos

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The check to see if -G is needed for dtrace requires a bit more effort,
make a header, c file, and object file.
This commit is contained in:
Timothy J Fontaine 2014-02-17 18:08:10 -08:00
parent d7c8cffecb
commit 3310ff4a9e
1 changed files with 10 additions and 2 deletions
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12
m4/dtrace.m4
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@ -39,10 +39,18 @@ provider Example {
probe increment(int);
};
_ACEOF
$DTRACE -G -o conftest.d.o -s conftest.d 2>/dev/zero
cat > conftest.c <<_ACEOF
#include "conftest.h"
void foo() {
EXAMPLE_INCREMENT(1);
}
_ACEOF
$DTRACE -h -o conftest.h -s conftest.d 2>/dev/zero
$CC -c -o conftest.o conftest.c
$DTRACE -G -o conftest.d.o -s conftest.d conftest.o 2>/dev/zero
AS_IF([test $? -eq 0],[ac_cv_dtrace_needs_objects=yes],
[ac_cv_dtrace_needs_objects=no])
rm -f conftest.d.o conftest.d
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