[perl #122287] probe in Configure whether dtrace builds an object

When building the object file, newer versions of dtrace (on Illumos
based systems at least) require an input object file that uses
at least one of the probes defined in the .d file.

The test in Makefile.SH didn't provide that definition so the test
would fail, and not build an object file, and fail to link later on,
on systems that *do* need the object file.

Moved the probe to Configure (where it probably belongs) and supplied
an object file that uses a probe.

Tested successfully on OmniOS (with the new dtrace), Solaris 11,
and darwin.

1 files changed, 29 insertions, 0 deletions

diff --git a/Configure b/Configure
index 7226ac9e6e..2546582f3c 100755
--- a/Configure
+++ b/Configure
@@ -1317,6 +1317,7 @@ use64bitall=''
 use64bitint=''
 usecbacktrace=''
 dtrace=''
+dtraceobject=''
 usedtrace=''
 usefaststdio=''
 usekernprocpathname=''
@@ -8171,6 +8172,33 @@ EOM
 	esac
 done
 
+case "$usedtrace" in
+$define)
+	case "$dtraceobject" in
+	$define|true|[yY]*)
+		dtraceobject=$define
+		;;
+	' '|'')
+		$dtrace -h -s ../perldtrace.d -o perldtrace.h
+		$cat >try.c <<EOM
+#include "perldtrace.h"
+int main(void) {
+    PERL_LOADED_FILE("dummy");
+    return 0;
+}
+EOM
+		dtraceobject=$undef
+		if $cc -c -o try.o $optimize $ccflags try.c \
+                    && $dtrace -G -s ../perldtrace.d try.o ; then
+		        dtraceobject=$define
+			echo "Your dtrace builds an object file"
+		fi
+		$rm -f try.c try.o perldtrace.o
+		;;
+	*) dtraceobject=$undef ;;
+	esac
+esac
+
 : See if we want extra modules installed
 echo " "
 case "$extras" in
@@ -24720,6 +24748,7 @@ doublesize='$doublesize'
 drand01='$drand01'
 drand48_r_proto='$drand48_r_proto'
 dtrace='$dtrace'
+dtraceobject='$dtraceobject'
 dynamic_ext='$dynamic_ext'
 eagain='$eagain'
 ebcdic='$ebcdic'