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-rw-r--r--Src/Modules/mathfunc.c7
1 files changed, 7 insertions, 0 deletions
diff --git a/Src/Modules/mathfunc.c b/Src/Modules/mathfunc.c
index 4d58745e8..f6d437ff9 100644
--- a/Src/Modules/mathfunc.c
+++ b/Src/Modules/mathfunc.c
@@ -534,6 +534,13 @@ math_string(UNUSED(char *name), char *arg, int id)
 		seedbufptr[0] = (unsigned short)rand();
 		seedbufptr[1] = (unsigned short)rand();
 		seedbufptr[2] = (unsigned short)rand();
+		/*
+		 * Some implementations of rand48() need initialization.
+		 * This is likely to be harmless elsewhere, since
+		 * according to the documentation erand48() normally
+		 * doesn't look at the seed set in this way.
+		 */
+		(void)seed48(seedbufptr);
 	    }
 	    ret.type = MN_FLOAT;
 	    ret.u.d = erand48(seedbufptr);