diff --git a/.ghci b/.ghci
--- a/.ghci
+++ b/.ghci
@@ -1,1 +1,1 @@
-:set -isrc-lib:src-exe:src-test:dist/build/autogen -optP-include -optPdist/build/autogen/cabal_macros.h
+:set -isrc-lib:src-exe:src-test:dist/build/autogen -optP-include -optPdist/build/autogen/cabal_macros.h -Wall -fno-warn-tabs
diff --git a/changelog.markdown b/changelog.markdown
--- a/changelog.markdown
+++ b/changelog.markdown
@@ -100,7 +100,10 @@
 * Replaced use of module **ToolShed.Defaultable** with **Data.Default**.
 * Reimplemented **RegExChar.MetaChar.deconstruct**, **QuickCheck.ExtendedRegExChar.deconstruct**, **QuickCheck.RepeatableMetaChar.deconstruct** using record-syntax.
 * Tested with **ghc-8.0.1**.
+
 ## 0.9.0.15
 * Added default RTS-options to **regexchar.cabal**.
 * Removed dependency on **Distribution.Package.PackageName**
+
+## 0.9.0.16
 
diff --git a/debian/DEBIAN/control b/debian/DEBIAN/control
--- a/debian/DEBIAN/control
+++ b/debian/DEBIAN/control
@@ -1,5 +1,5 @@
 Package:	regexchar
-Version:	0.9.0.15-1
+Version:	0.9.0.16-1
 Section:	text
 Priority:	optional
 Architecture:	amd64
diff --git a/regexchar.cabal b/regexchar.cabal
--- a/regexchar.cabal
+++ b/regexchar.cabal
@@ -14,7 +14,7 @@
 -- along with RegExChar.  If not, see <http://www.gnu.org/licenses/>.
 
 Name:		regexchar
-Version:	0.9.0.15
+Version:	0.9.0.16
 Cabal-version:	>= 1.10
 Copyright:	(C) 2010-2015 Dr. Alistair Ward
 License:	GPL
@@ -25,7 +25,7 @@
 Build-type:	Simple
 Description:	Provides a POSIX, extended regex-engine, specialised from the underlying /polymorphic/ package /regexdot/, to merely process the traditional character-lists.
 Category:	Regex, Text
-Tested-with:	GHC == 7.4, GHC == 7.6, GHC == 7.8, GHC == 7.10.1, GHC == 8.0.1
+Tested-with:	GHC == 7.4, GHC == 7.6, GHC == 7.8, GHC == 7.10, GHC == 8.0, GHC == 8.2
 Homepage:	http://functionalley.eu/RegExChar/regExChar.html
 Maintainer:	mailto:regexchar@functionalley.eu
 Bug-reports:	mailto:regexchar@functionalley.eu
@@ -49,7 +49,7 @@
     type:	git
     location:	https://github.com/functionalley/RegExChar
 
--- Enable using: 'cabal configure -f llvm'.
+-- Enable using: 'runhaskell Setup configure -f llvm --verbose'.
 flag llvm
     Description:	Whether the 'llvm' compiler-backend has been installed and is required for code-generation.
     Manual:		True
@@ -80,17 +80,17 @@
         regexdot >= 0.12,
         toolshed >= 0.17
 
-    if impl(ghc >= 7.4.1)
-        GHC-prof-options:	-fprof-auto -fprof-cafs
-    else
-        GHC-prof-options:	-auto-all -caf-all
-
     if impl(ghc >= 7.0)
         if flag(llvm)
             GHC-options:	-fllvm
 
-        if impl(ghc >= 8.0)
-            GHC-options:	-Wredundant-constraints
+        if impl(ghc >= 7.4.1)
+            GHC-prof-options:	-fprof-auto -fprof-cafs
+    
+            if impl(ghc >= 8.0)
+                GHC-options:	-j -Wredundant-constraints
+        else
+            GHC-prof-options:	-auto-all -caf-all
 
 Executable grecce
     Default-language:	Haskell2010
@@ -126,13 +126,13 @@
         if flag(threaded)
             GHC-options:	-rtsopts "-with-rtsopts=-N -H10M"
 
-        if impl(ghc >= 8.0)
-            GHC-options:	-Wredundant-constraints
-
-    if impl(ghc >= 7.4.1)
-        GHC-prof-options:	-fprof-auto -fprof-cafs -rtsopts -with-rtsopts=-H10M
-    else
-        GHC-prof-options:	-auto-all -caf-all
+        if impl(ghc >= 7.4.1)
+            GHC-prof-options:	-fprof-auto -fprof-cafs -rtsopts -with-rtsopts=-H10M
+    
+            if impl(ghc >= 8.0)
+                GHC-options:	-j -Wredundant-constraints
+        else
+            GHC-prof-options:	-auto-all -caf-all
 
     if flag(threaded)
         GHC-options:	-threaded
@@ -158,5 +158,5 @@
         toolshed >= 0.17
 
     if impl(ghc >= 8.0)
-        GHC-options:	-Wredundant-constraints
+        GHC-options:	-j -Wredundant-constraints
 
diff --git a/regexchar.spec b/regexchar.spec
--- a/regexchar.spec
+++ b/regexchar.spec
@@ -22,7 +22,7 @@
 
 Summary:	A re-implementation of egrep, using a specialisation of a polymorphic regex-engine
 Name:		regexchar
-Version:	0.9.0.15
+Version:	0.9.0.16
 Release:	1
 License:	GPLv3
 # From '/usr/share/doc/packages/rpm/GROUPS'.