From c020665cf2dd556b307da0b57b625db4f305ffd0 Mon Sep 17 00:00:00 2001
From: Emanuel Guevel <guevel.emanuel@gmail.com>
Date: Sat, 9 Mar 2013 01:00:03 +0100
Subject: [PATCH] Fix appending int to string in an exception message

---
 apps/openmw/mwmechanics/alchemy.cpp | 6 +++++-
 1 file changed, 5 insertions(+), 1 deletion(-)

diff --git a/apps/openmw/mwmechanics/alchemy.cpp b/apps/openmw/mwmechanics/alchemy.cpp
index 8ab81bfdf..718200372 100644
--- a/apps/openmw/mwmechanics/alchemy.cpp
+++ b/apps/openmw/mwmechanics/alchemy.cpp
@@ -144,7 +144,11 @@ void MWMechanics::Alchemy::updateEffects()
             MWBase::Environment::get().getWorld()->getStore().get<ESM::MagicEffect>().find (iter->mId);         
         
         if (magicEffect->mData.mBaseCost<=0)
-            throw std::runtime_error ("invalid base cost for magic effect " + iter->mId);
+        {
+            std::ostringstream os;
+            os << "invalid base cost for magic effect " << iter->mId;
+            throw std::runtime_error (os.str());
+        }
         
         float fPotionT1MagMul =
             MWBase::Environment::get().getWorld()->getStore().get<ESM::GameSetting>().find ("fPotionT1MagMult")->getFloat();