From 65b103fc08c5a58f3b0c2b56ac8650ca8e678109 Mon Sep 17 00:00:00 2001
From: Iain Buclaw <ibuclaw@gdcproject.org>
Date: Sat, 23 May 2015 14:05:03 +0200
Subject: [PATCH] Relax compile-time assertion in gammafunction to runtime

---
 std/internal/math/gammafunction.d | 6 ++++--
 1 file changed, 4 insertions(+), 2 deletions(-)

diff --git a/std/internal/math/gammafunction.d b/std/internal/math/gammafunction.d
index 9515212bd83..b630538647f 100644
--- a/std/internal/math/gammafunction.d
+++ b/std/internal/math/gammafunction.d
@@ -1597,8 +1597,10 @@ unittest {
 real logmdigammaInverse(real y)
 {
     import std.numeric: findRoot;
-    enum maxY = logmdigamma(real.min_normal);
-    static assert(maxY > 0 && maxY <= real.max);
+    // FIXME: should be returned back to enum.
+    // Fix requires CTFEable `log` on non-x86 targets (check both LDC and GDC).
+    immutable maxY = logmdigamma(real.min_normal);
+    assert(maxY > 0 && maxY <= real.max);
 
     if (y >= maxY)
     {