[m-rev.] diff: enable par grades on MacOS X

[Peter Ross]

===================================================================


Estimated hours taken: 0.25
Branches: main

configure.in:
	Enable the parallel grades under MacOS X.


Index: configure.in
===================================================================
RCS file: /home/mercury1/repository/mercury/configure.in,v
retrieving revision 1.361
diff -u -r1.361 configure.in
--- configure.in	6 May 2003 10:38:04 -0000	1.361
+++ configure.in	6 May 2003 12:24:28 -0000
@@ -2121,6 +2121,16 @@
 		esac
 		;;
 
+	# Theoretically we should change this check to *apple*darwin*)
+	# as darwin should be the same whether or not we are on a powerpc or
+	# an i386, but since we don't have access to an i386 with darwin 
+	# installed to test this, we currently restrict ourselves to the
+	# powerpc architecture.
+	*powerpc*apple*darwin*)
+		CFLAGS_FOR_THREADS="-DMR_THREAD_SAFE -DGC_MACOSX_THREADS"
+		THREAD_LIBS=""
+		;;
+
 ###	# The threads stuff on Digital Unix (OSF) is not yet enabled because
 ###	# the Boehm garbage collector doesn't support threads on that platform
 ###	# XXX probably we should enable it but report an error if you try to

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