diff -urN jags.orig/Makefile jags/Makefile
--- jags.orig/Makefile	2015-11-13 17:11:47.305736000 +0100
+++ jags/Makefile	2015-11-13 18:02:26.322259000 +0100
@@ -2,8 +2,7 @@
 # $FreeBSD: head/math/jags/Makefile 386312 2015-05-14 10:15:04Z mat $
 
 PORTNAME=	mcmc-jags
-PORTVERSION=	3.4.0
-PORTREVISION=	4
+PORTVERSION=	4.0.0
 CATEGORIES=	math
 MASTER_SITES=	SF/mcmc-jags/JAGS/${S}.x/Source/:1 \
 		SF/mcmc-jags/Examples/${S}.x/:2 \
@@ -18,14 +17,13 @@
 LICENSE=	GPLv2
 
 GNU_CONFIGURE=	yes
-USES=		bison fortran gmake libtool
+USES=		bison compiler:features fortran gmake libtool localbase
+USE_GCC=	yes
 USE_LDCONFIG=	yes
 
 DIST_SUBDIR=	${PORTNAME}
 WRKSRC=		${WRKDIR}/JAGS-${PORTVERSION}
 
-CPPFLAGS+=	-I${LOCALBASE}/include
-LDFLAGS+=	-L${LOCALBASE}/lib
 PLIST_SUB=	MODULEVERSION=${S}
 S=		${PORTVERSION:C|\..*||}
 
diff -urN jags.orig/distinfo jags/distinfo
--- jags.orig/distinfo	2013-10-04 08:01:10.000000000 +0200
+++ jags/distinfo	2015-10-23 10:43:17.000000000 +0200
@@ -1,5 +1,5 @@
-SHA256 (mcmc-jags/JAGS-3.4.0.tar.gz) = 2beaa9a2672c2c95efc55ffa4c8b597a872f20232373daebd17ad539d3d7d82b
-SIZE (mcmc-jags/JAGS-3.4.0.tar.gz) = 1677450
+SHA256 (mcmc-jags/JAGS-4.0.0.tar.gz) = a1d572269029d90d4e8b25757fd7ae9678994bd682937ec505ddcf06185d2c4c
+SIZE (mcmc-jags/JAGS-4.0.0.tar.gz) = 1880476
 SHA256 (mcmc-jags/jags_developer_manual.pdf) = 6e7c707b94ffc931807198cc162e8b254859bb774695ae39ef1c1c175560259b
 SIZE (mcmc-jags/jags_developer_manual.pdf) = 71319
 SHA256 (mcmc-jags/jags_installation_manual.pdf) = 4b339af679186783f1bcfc1c31483238cbd46eb9f1f31eb853da51dae61cb3e5
diff -urN jags.orig/pkg-plist jags/pkg-plist
--- jags.orig/pkg-plist	2014-11-16 14:07:25.000000000 +0100
+++ jags/pkg-plist	2015-11-13 17:59:27.788137000 +0100
@@ -1,9 +1,7 @@
 bin/mcmc-jags
 include/JAGS/Console.h
 include/JAGS/JRmath.h
-include/JAGS/Module.h
 include/JAGS/compiler/Compiler.h
-include/JAGS/compiler/ConstantFactory.h
 include/JAGS/compiler/Counter.h
 include/JAGS/compiler/CounterTab.h
 include/JAGS/compiler/LogicalFactory.h
@@ -16,16 +14,25 @@
 include/JAGS/distribution/DistPtr.h
 include/JAGS/distribution/DistTab.h
 include/JAGS/distribution/Distribution.h
+include/JAGS/distribution/RScalarDist.h
 include/JAGS/distribution/ScalarDist.h
 include/JAGS/distribution/VectorDist.h
 include/JAGS/function/ArrayFunction.h
+include/JAGS/function/ArrayLogDensity.h
+include/JAGS/function/DFunction.h
+include/JAGS/function/DPQFunction.h
 include/JAGS/function/FuncError.h
 include/JAGS/function/FuncTab.h
 include/JAGS/function/Function.h
 include/JAGS/function/FunctionPtr.h
 include/JAGS/function/LinkFunction.h
+include/JAGS/function/PFunction.h
+include/JAGS/function/QFunction.h
 include/JAGS/function/ScalarFunction.h
+include/JAGS/function/ScalarLogDensity.h
+include/JAGS/function/ScalarVectorFunction.h
 include/JAGS/function/VectorFunction.h
+include/JAGS/function/VectorLogDensity.h
 include/JAGS/graph/AggNode.h
 include/JAGS/graph/ArrayLogicalNode.h
 include/JAGS/graph/ArrayStochasticNode.h
@@ -35,9 +42,11 @@
 include/JAGS/graph/GraphMarks.h
 include/JAGS/graph/LinkNode.h
 include/JAGS/graph/LogicalNode.h
+include/JAGS/graph/MixTab.h
 include/JAGS/graph/MixtureNode.h
 include/JAGS/graph/Node.h
 include/JAGS/graph/NodeError.h
+include/JAGS/graph/ParentError.h
 include/JAGS/graph/ScalarLogicalNode.h
 include/JAGS/graph/ScalarStochasticNode.h
 include/JAGS/graph/StochasticNode.h
@@ -51,27 +60,34 @@
 include/JAGS/model/MonitorFactory.h
 include/JAGS/model/MonitorInfo.h
 include/JAGS/model/NodeArray.h
+include/JAGS/model/NodeArraySubset.h
 include/JAGS/model/SymTab.h
+include/JAGS/module/Module.h
 include/JAGS/module/ModuleError.h
 include/JAGS/rng/RNG.h
-include/JAGS/rng/RmathRNG.h
 include/JAGS/rng/RNGFactory.h
+include/JAGS/rng/RmathRNG.h
 include/JAGS/rng/TruncatedNormal.h
 include/JAGS/sampler/GraphView.h
+include/JAGS/sampler/ImmutableSampleMethod.h
+include/JAGS/sampler/ImmutableSampler.h
 include/JAGS/sampler/Linear.h
 include/JAGS/sampler/Metropolis.h
-include/JAGS/sampler/ParallelSampler.h
+include/JAGS/sampler/MutableSampleMethod.h
+include/JAGS/sampler/MutableSampler.h
 include/JAGS/sampler/RWMetropolis.h
-include/JAGS/sampler/SampleMethod.h
+include/JAGS/sampler/SampleMethodNoAdapt.h
 include/JAGS/sampler/Sampler.h
 include/JAGS/sampler/SamplerFactory.h
 include/JAGS/sampler/SingletonFactory.h
+include/JAGS/sampler/SingletonGraphView.h
 include/JAGS/sampler/Slicer.h
 include/JAGS/sampler/StepAdapter.h
 include/JAGS/sampler/TemperedMetropolis.h
 include/JAGS/sarray/Range.h
 include/JAGS/sarray/RangeIterator.h
 include/JAGS/sarray/SArray.h
+include/JAGS/sarray/SimpleRange.h
 include/JAGS/util/dim.h
 include/JAGS/util/integer.h
 include/JAGS/util/logical.h
@@ -85,8 +101,8 @@
 lib/JAGS/modules-%%MODULEVERSION%%/mix.so
 lib/JAGS/modules-%%MODULEVERSION%%/msm.so
 lib/libjags.so
-lib/libjags.so.3
-lib/libjags.so.3.0.4
+lib/libjags.so.4
+lib/libjags.so.4.0.0
 lib/libjrmath.so
 lib/libjrmath.so.0
 lib/libjrmath.so.0.0.0