[m-rev.] for review: add configure.in option

[Peter Ross]

Hi,


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Estimated hours taken: 0.25
Branches: main

Allow one to test for a sufficiently recent compiler in configure.in
by testing whether an option exists.  This is useful for when the test
cannot be easily done some other way.

compiler/options.m:
	Add a new option compiler_sufficiently_recent which is
	currently set by the command line option
	`--bug-intermod-2002-06-13'.

Index: options.m
===================================================================
RCS file: /home/mercury1/repository/mercury/compiler/options.m,v
retrieving revision 1.374
diff -u -r1.374 options.m
--- options.m	12 Jun 2002 14:26:50 -0000	1.374
+++ options.m	13 Jun 2002 08:25:50 -0000
@@ -563,6 +563,10 @@
 		;	aditi_user
 		;	help
 		;	fullarch
+		;	compiler_sufficiently_recent
+				% This option is used to test that the compiler
+				% is sufficiently recent when no other test
+				% can easily be constructed in configure.in.
 		.
 
 :- implementation.
@@ -1098,7 +1102,9 @@
 	aditi			-	bool(no),
 	aditi_user		-	string(""),
 	help 			-	bool(no),
-	fullarch		-	string("")
+	fullarch		-	string(""),
+	compiler_sufficiently_recent
+				-	bool(no)
 ]).
 
 	% please keep this in alphabetic order
@@ -1675,6 +1681,7 @@
 long_option("aditi",			aditi).
 long_option("aditi-user",		aditi_user).
 long_option("fullarch",			fullarch).
+long_option("bug-intermod-2002-06-13",	compiler_sufficiently_recent).
 
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