Add an explicit cast to double when using fabs().

deanrasheed · deanrasheed · commit 740780a6157f · 2021-01-05T11:50:11.000Z
Commit bc43b7c used fabs() directly on an int variable, which apparently requires an explicit cast on some platforms. Per buildfarm.
diff --git a/src/backend/utils/adt/numeric.c b/src/backend/utils/adt/numeric.c
@@ -8601,7 +8601,7 @@ power_var_int(const NumericVar *base, int exp, NumericVar *result, int rscale)
 	 * to around log10(abs(exp)) digits, so work with this many extra digits
 	 * of precision (plus a few more for good measure).
 	 */
-	sig_digits += (int) log(fabs(exp)) + 8;
+	sig_digits += (int) log(fabs((double) exp)) + 8;
 
 	/*
 	 * Now we can proceed with the multiplications.
