diff --git a/Engine/OfxEffectInstance.cpp b/Engine/OfxEffectInstance.cpp
index b20b0a2d4c..29633f6afd 100644
--- a/Engine/OfxEffectInstance.cpp
+++ b/Engine/OfxEffectInstance.cpp
@@ -1611,7 +1611,7 @@ OfxEffectInstance::getFramesNeeded(double time, int view)
         
         if ( (stat != kOfxStatOK) && (stat != kOfxStatReplyDefault) ) {
             throw std::runtime_error("getFrameViewsNeeded action failed");
-        } else if (stat == kOfxStatOK) {
+        } else {
             for (OFX::Host::ImageEffect::ViewsRangeMap::iterator it = inputRanges.begin(); it != inputRanges.end(); ++it) {
                 OfxClipInstance* clip = dynamic_cast<OfxClipInstance*>(it->first);
                 assert(clip);
diff --git a/Gui/CurveGui.cpp b/Gui/CurveGui.cpp
index e532dad10a..cc0cc5450c 100644
--- a/Gui/CurveGui.cpp
+++ b/Gui/CurveGui.cpp
@@ -329,9 +329,13 @@ CurveGui::drawCurve(int curveIndex,
         glCheckError();
         if (hasDrawnExpr) {
             glBegin(GL_LINE_STRIP);
+            bool prevVisible = true;
             for (int i = 0; i < (int)exprVertices.size(); i += 2) {
-                if (exprVertices[i] < btmLeft.x() || exprVertices[i] > topRight.x() ||
-                    exprVertices[i+1] < btmLeft.y() || exprVertices[i+1] > topRight.y()) {
+                bool vertexVisible = exprVertices[i] >= btmLeft.x() && exprVertices[i] <= topRight.x() &&
+                exprVertices[i+1] >= btmLeft.y() && exprVertices[i+1] <= topRight.y();
+                bool previousWasVisible = prevVisible;
+                prevVisible = vertexVisible;
+                if (!previousWasVisible && !vertexVisible) {
                     continue;
                 }
                 glVertex2f(exprVertices[i],exprVertices[i + 1]);
@@ -343,13 +347,19 @@ CurveGui::drawCurve(int curveIndex,
             glEnable(GL_LINE_STIPPLE);
         }
         glBegin(GL_LINE_STRIP);
+        
+        bool prevVisible = true;
         for (int i = 0; i < (int)vertices.size(); i += 2) {
-            if (vertices[i] < btmLeft.x() || vertices[i] > topRight.x() ||
-                vertices[i+1] < btmLeft.y() || vertices[i+1] > topRight.y()) {
+            bool vertexVisible = vertices[i] >= btmLeft.x() && vertices[i] <= topRight.x() &&
+            vertices[i+1] >= btmLeft.y() && vertices[i+1] <= topRight.y();
+            bool previousWasVisible = prevVisible;
+            prevVisible = vertexVisible;
+            if (!previousWasVisible && !vertexVisible) {
                 continue;
             }
             glVertex2f(vertices[i],vertices[i + 1]);
         }
+     
         glEnd();
         if (hasDrawnExpr) {
             glDisable(GL_LINE_STIPPLE);
diff --git a/Gui/DopeSheetView.cpp b/Gui/DopeSheetView.cpp
index 8ac0b8ea3d..e6601a29bb 100644
--- a/Gui/DopeSheetView.cpp
+++ b/Gui/DopeSheetView.cpp
@@ -74,6 +74,8 @@
 CLANG_DIAG_OFF(deprecated-declarations)
 GCC_DIAG_OFF(deprecated-declarations)
 
+#define NATRON_DOPESHEET_MIN_RANGE_FIT 10
+
 NATRON_NAMESPACE_ENTER;
 
 namespace {
@@ -2681,6 +2683,15 @@ void DopeSheetView::centerOnSelection()
     if (range.first == range.second) {
         return;
     }
+    
+    double actualRange = (range.second - range.first);
+    if (actualRange < NATRON_DOPESHEET_MIN_RANGE_FIT) {
+        double diffRange = NATRON_DOPESHEET_MIN_RANGE_FIT - actualRange;
+        diffRange /= 2;
+        range.first -= diffRange;
+        range.second += diffRange;
+    }
+    
 
     _imp->zoomContext.fill(range.first, range.second,
                            _imp->zoomContext.bottom(), _imp->zoomContext.top());
@@ -3463,7 +3474,7 @@ DopeSheetView::wheelEvent(QWheelEvent *e)
     }
     else if (par > par_max) {
         par = par_max;
-        scaleFactor = par / _imp->zoomContext.factor();
+        scaleFactor = 1;
     }
 
 
diff --git a/tools/MacOSX/ports/graphics/openimageio/Portfile b/tools/MacOSX/ports/graphics/openimageio/Portfile
index 6414062eae..8fd02bb463 100644
--- a/tools/MacOSX/ports/graphics/openimageio/Portfile
+++ b/tools/MacOSX/ports/graphics/openimageio/Portfile
@@ -13,7 +13,7 @@ PortGroup        qt4 1.0
 epoch        	 1
 
 fetch.type              git
-github.setup     OpenImageIO oiio 1.6.9 tags/Release-
+github.setup     OpenImageIO oiio 1.5.23 tags/Release-
 #github.version      ${version}-dist
 #github.tarball_from downloads
 
@@ -79,8 +79,7 @@ if {${configure.build_arch} eq "ppc"} {
 
 patch.pre_args	-p1
 patchfiles \
-    oiio-x86intrin.patch \
-    oiio-sha1.patch
+    oiio-1.5.22-exrthreads.patch
 
 cmake.out_of_source yes
 
diff --git a/tools/MacOSX/ports/graphics/openimageio/Portfile~1.5 b/tools/MacOSX/ports/graphics/openimageio/Portfile~1.5
new file mode 100644
index 0000000000..8fd02bb463
--- /dev/null
+++ b/tools/MacOSX/ports/graphics/openimageio/Portfile~1.5
@@ -0,0 +1,169 @@
+# -*- coding: utf-8; mode: tcl; tab-width: 4; indent-tabs-mode: nil; c-basic-offset: 4 -*- vim:fenc=utf-8:ft=tcl:et:sw=4:ts=4:sts=4
+# $Id$
+
+PortSystem 1.0
+PortGroup        github 1.0
+PortGroup        cmake 1.0
+PortGroup        conflicts_build 1.0
+PortGroup        qt4 1.0
+# gcc-4.8 cannot compile universal
+# The internal yaml-cpp is not compiled with multiple archs in universal mode
+#PortGroup        muniversal 1.0
+
+epoch        	 1
+
+fetch.type              git
+github.setup     OpenImageIO oiio 1.5.23 tags/Release-
+#github.version      ${version}-dist
+#github.tarball_from downloads
+
+name             openimageio
+#version          1.4.5.91
+#revision         2
+categories       graphics
+platforms           darwin
+license          BSD
+maintainers      openmaintainer
+description      OpenImageIO is a library for reading and writing images
+long_description ${description}
+homepage         http://sites.google.com/site/openimageio/
+
+
+#master_sites     debian:o/openimageio/
+#worksrcdir       ${name}-${version}~dfsg0.orig
+#distfiles           ${name}_${version}~dfsg0.orig${extract.suffix}
+#checksums           rmd160  94c6e2274be01e82cfe8bc4bf11677593d33f299 \
+#                    sha256  4cf3b373e56694ce9e3896a356b68a2ed92978e76be653a5b5e45b17937faae8
+
+depends_lib      port:boost port:jpeg port:tiff port:libpng port:openexr port:glew port:ilmbase port:libraw port:giflib
+
+# can't compile openimageio when another version is installed, because the include path is wrong
+conflicts_build  ${name}
+
+depends_build    port:txt2man
+depends_skip_archcheck txt2man
+# port:opencolorio
+
+# we need gcc atomics (clang >= 3.5 maybe?, gcc >= 4.8 works)
+# tested with openimageio 1.4.6rc1:
+# macports-clang-3.3 and later work
+# gcc-4.2 doesn't work
+# llvm-gcc-4.2 works
+# macports-clang < 3.3 untested
+#compiler.fallback-append macports-gcc-4.8 macports-gcc-4.9 macports-clang-3.3 macports-clang-3.4 macports-clang-3.5
+compiler.blacklist apple-gcc-4.0 apple-gcc-4.2 gcc-3.3 gcc-4.0 gcc-4.2 macports-gcc-4.0 macports-gcc-4.2
+
+# The PowerPC build requires GCC >= 4.8, which doesn't recognize the -arch flag, and requires libatomic
+if {${configure.build_arch} eq "ppc"} {
+    compiler.blacklist-append macports-gcc-4.3 macports-gcc-4.4 macports-gcc-4.5 macports-gcc-4.6 macports-gcc-4.7 macports-clang-3.3 macports-clang-3.4 macports-clang-3.5 
+    # the following removes the flag "-arch ppc" put by cmake-1.0 portgroup in the pre-configure phase
+    pre-configure {
+        configure.args-delete -DCMAKE_OSX_ARCHITECTURES="${configure.build_arch}"
+    }
+    # -latomic is necessary on ppc for __atomic_fetch_add_8 and __atomic_exchange_8
+    configure.args-append -DCMAKE_SHARED_LINKER_FLAGS=-latomic -DCMAKE_EXE_LINKER_FLAGS=-latomic
+}
+
+#post-extract {
+#    system "touch ${worksrcpath}/LICENSE  ${workpath}/${worksrcdir}/LICENSE"
+#}
+
+# Those are Debian patches, which require -p1
+#patch.pre_args	-p1
+#patchfiles \
+#     build_in_sources.patch
+#    0001-Fix_docs_generation.patch \
+#    0002-Fix_IlmBase_issue.patch \
+#    0003-Fix_multiarch_paths.patch \
+#    0004-Fix_FTBFS_on_atomic_operations.patch \
+
+patch.pre_args	-p1
+patchfiles \
+    oiio-1.5.22-exrthreads.patch
+
+cmake.out_of_source yes
+
+configure.args-append \
+    -DOIIO_BUILD_TESTS:BOOL=FALSE \
+    -DBOOST_ROOT=${prefix} \
+    -DUSE_QT:BOOL=FALSE \
+    -DUSE_TBB:BOOL=FALSE \
+    -DUSE_PYTHON:BOOL=FALSE \
+    -DUSE_PYTHON3:BOOL=FALSE \
+    -DUSE_FIELD3D:BOOL=FALSE \
+    -DUSE_FFMPEG:BOOL=FALSE \
+    -DUSE_OPENJPEG:BOOL=FALSE \
+    -DUSE_OCIO:BOOL=FALSE \
+    -DUSE_OPENCV:BOOL=FALSE \
+    -DUSE_OPENSSL:BOOL=FALSE \
+    -DUSE_FREETYPE:BOOL=FALSE \
+    -DUSE_GIF:BOOL=TRUE \
+    -DUSE_PTEX:BOOL=FALSE \
+    -DUSE_LIBRAW:BOOL=TRUE \
+    -DSTOP_ON_WARNING:BOOL=FALSE
+
+default_variants    +opencolorio +openjpeg +qt4 +freetype
+
+variant opencolorio description {Add OpenColorIO support.} {
+    depends_lib-append  port:opencolorio
+    configure.args-delete       -DUSE_OCIO:BOOL=FALSE
+    configure.args-append       -DUSE_OCIO:BOOL=TRUE
+}
+
+variant ffmpeg description {Add FFmpeg support.} {
+    depends_lib-append  port:ffmpeg
+    configure.args-delete       -DUSE_FFMPEG:BOOL=FALSE
+    configure.args-append       -DUSE_FFMPEG:BOOL=TRUE
+}
+
+variant openjpeg description {Add OpenJPEG support.} {
+    depends_lib-append  port:openjpeg15
+    configure.args-delete       -DUSE_OPENJPEG:BOOL=FALSE
+    configure.args-append       -DUSE_OPENJPEG:BOOL=TRUE -DOPENJPEG_INCLUDE_DIR=${prefix}/include/openjpeg-1.5
+}
+
+variant python26 conflicts python27 description {Add Python 2.6 bindings.} {
+    depends_lib-append          port:python26
+    configure.args-delete       -DUSE_PYTHON:BOOL=FALSE
+    configure.args-append       -DUSE_PYTHON:BOOL=TRUE \
+                                -DPYTHON_VERSION=2.6 \
+                                -DPYTHON_EXECUTABLE=${prefix}/bin/python2.6 \
+                                -DPYTHON_LIBRARY=${prefix}/lib/libpython2.6.dylib \
+                                -DPYTHON_INCLUDE_DIR=${frameworks_dir}/Python.framework/Versions/2.6/Headers \
+                                -DPYTHON_PACKAGES_PATH=${frameworks_dir}/Python.framework/Versions/2.6/lib/python2.6/site-packages
+}
+
+variant python27 conflicts python26 description {Add Python 2.7 bindings.} {
+    depends_lib-append          port:python27
+    configure.args-delete       -DUSE_PYTHON:BOOL=FALSE
+    configure.args-append       -DUSE_PYTHON:BOOL=TRUE \
+                                -DPYTHON_VERSION=2.7 \
+                                -DPYTHON_EXECUTABLE=${prefix}/bin/python2.7 \
+                                -DPYTHON_LIBRARY=${prefix}/lib/libpython2.7.dylib \
+                                -DPYTHON_INCLUDE_DIR=${frameworks_dir}/Python.framework/Versions/2.7/Headers \
+                                -DPYTHON_PACKAGES_PATH=${frameworks_dir}/Python.framework/Versions/2.7/lib/python2.7/site-packages
+}
+
+variant qt4 description {Build the Qt-based image viewer.} {
+    configure.args-delete -DUSE_QT:BOOL=FALSE
+    configure.args-append -DUSE_QT:BOOL=TRUE
+    depends_lib-append port:qt4-mac
+}
+
+variant field3d description {Use Field3D.} {
+    configure.args-delete -DUSE_FIELD3D:BOOL=FALSE
+    configure.args-append -DUSE_FIELD3D:BOOL=TRUE
+    depends_lib-append port:field3d
+}
+
+variant freetype description {Use FreeType.} {
+    configure.args-delete -DUSE_FREETYPE:BOOL=FALSE
+    configure.args-append -DUSE_FREETYPE:BOOL=TRUE -DFREETYPE_INCLUDE_PATH=${prefix}/include/freetype2
+    depends_lib-append port:freetype
+}
+
+variant natron require field3d description {Compile a version to be included in Natron} {
+}
+#configure.args   --enable-bsdtar=shared --enable-bsdcpio=shared \
+#                 --without-lzmadec --without-lzma
+#use_autoreconf	yes
diff --git a/tools/MacOSX/ports/graphics/openimageio/Portfile~1.6 b/tools/MacOSX/ports/graphics/openimageio/Portfile~1.6
new file mode 100644
index 0000000000..6414062eae
--- /dev/null
+++ b/tools/MacOSX/ports/graphics/openimageio/Portfile~1.6
@@ -0,0 +1,170 @@
+# -*- coding: utf-8; mode: tcl; tab-width: 4; indent-tabs-mode: nil; c-basic-offset: 4 -*- vim:fenc=utf-8:ft=tcl:et:sw=4:ts=4:sts=4
+# $Id$
+
+PortSystem 1.0
+PortGroup        github 1.0
+PortGroup        cmake 1.0
+PortGroup        conflicts_build 1.0
+PortGroup        qt4 1.0
+# gcc-4.8 cannot compile universal
+# The internal yaml-cpp is not compiled with multiple archs in universal mode
+#PortGroup        muniversal 1.0
+
+epoch        	 1
+
+fetch.type              git
+github.setup     OpenImageIO oiio 1.6.9 tags/Release-
+#github.version      ${version}-dist
+#github.tarball_from downloads
+
+name             openimageio
+#version          1.4.5.91
+#revision         2
+categories       graphics
+platforms           darwin
+license          BSD
+maintainers      openmaintainer
+description      OpenImageIO is a library for reading and writing images
+long_description ${description}
+homepage         http://sites.google.com/site/openimageio/
+
+
+#master_sites     debian:o/openimageio/
+#worksrcdir       ${name}-${version}~dfsg0.orig
+#distfiles           ${name}_${version}~dfsg0.orig${extract.suffix}
+#checksums           rmd160  94c6e2274be01e82cfe8bc4bf11677593d33f299 \
+#                    sha256  4cf3b373e56694ce9e3896a356b68a2ed92978e76be653a5b5e45b17937faae8
+
+depends_lib      port:boost port:jpeg port:tiff port:libpng port:openexr port:glew port:ilmbase port:libraw port:giflib
+
+# can't compile openimageio when another version is installed, because the include path is wrong
+conflicts_build  ${name}
+
+depends_build    port:txt2man
+depends_skip_archcheck txt2man
+# port:opencolorio
+
+# we need gcc atomics (clang >= 3.5 maybe?, gcc >= 4.8 works)
+# tested with openimageio 1.4.6rc1:
+# macports-clang-3.3 and later work
+# gcc-4.2 doesn't work
+# llvm-gcc-4.2 works
+# macports-clang < 3.3 untested
+#compiler.fallback-append macports-gcc-4.8 macports-gcc-4.9 macports-clang-3.3 macports-clang-3.4 macports-clang-3.5
+compiler.blacklist apple-gcc-4.0 apple-gcc-4.2 gcc-3.3 gcc-4.0 gcc-4.2 macports-gcc-4.0 macports-gcc-4.2
+
+# The PowerPC build requires GCC >= 4.8, which doesn't recognize the -arch flag, and requires libatomic
+if {${configure.build_arch} eq "ppc"} {
+    compiler.blacklist-append macports-gcc-4.3 macports-gcc-4.4 macports-gcc-4.5 macports-gcc-4.6 macports-gcc-4.7 macports-clang-3.3 macports-clang-3.4 macports-clang-3.5 
+    # the following removes the flag "-arch ppc" put by cmake-1.0 portgroup in the pre-configure phase
+    pre-configure {
+        configure.args-delete -DCMAKE_OSX_ARCHITECTURES="${configure.build_arch}"
+    }
+    # -latomic is necessary on ppc for __atomic_fetch_add_8 and __atomic_exchange_8
+    configure.args-append -DCMAKE_SHARED_LINKER_FLAGS=-latomic -DCMAKE_EXE_LINKER_FLAGS=-latomic
+}
+
+#post-extract {
+#    system "touch ${worksrcpath}/LICENSE  ${workpath}/${worksrcdir}/LICENSE"
+#}
+
+# Those are Debian patches, which require -p1
+#patch.pre_args	-p1
+#patchfiles \
+#     build_in_sources.patch
+#    0001-Fix_docs_generation.patch \
+#    0002-Fix_IlmBase_issue.patch \
+#    0003-Fix_multiarch_paths.patch \
+#    0004-Fix_FTBFS_on_atomic_operations.patch \
+
+patch.pre_args	-p1
+patchfiles \
+    oiio-x86intrin.patch \
+    oiio-sha1.patch
+
+cmake.out_of_source yes
+
+configure.args-append \
+    -DOIIO_BUILD_TESTS:BOOL=FALSE \
+    -DBOOST_ROOT=${prefix} \
+    -DUSE_QT:BOOL=FALSE \
+    -DUSE_TBB:BOOL=FALSE \
+    -DUSE_PYTHON:BOOL=FALSE \
+    -DUSE_PYTHON3:BOOL=FALSE \
+    -DUSE_FIELD3D:BOOL=FALSE \
+    -DUSE_FFMPEG:BOOL=FALSE \
+    -DUSE_OPENJPEG:BOOL=FALSE \
+    -DUSE_OCIO:BOOL=FALSE \
+    -DUSE_OPENCV:BOOL=FALSE \
+    -DUSE_OPENSSL:BOOL=FALSE \
+    -DUSE_FREETYPE:BOOL=FALSE \
+    -DUSE_GIF:BOOL=TRUE \
+    -DUSE_PTEX:BOOL=FALSE \
+    -DUSE_LIBRAW:BOOL=TRUE \
+    -DSTOP_ON_WARNING:BOOL=FALSE
+
+default_variants    +opencolorio +openjpeg +qt4 +freetype
+
+variant opencolorio description {Add OpenColorIO support.} {
+    depends_lib-append  port:opencolorio
+    configure.args-delete       -DUSE_OCIO:BOOL=FALSE
+    configure.args-append       -DUSE_OCIO:BOOL=TRUE
+}
+
+variant ffmpeg description {Add FFmpeg support.} {
+    depends_lib-append  port:ffmpeg
+    configure.args-delete       -DUSE_FFMPEG:BOOL=FALSE
+    configure.args-append       -DUSE_FFMPEG:BOOL=TRUE
+}
+
+variant openjpeg description {Add OpenJPEG support.} {
+    depends_lib-append  port:openjpeg15
+    configure.args-delete       -DUSE_OPENJPEG:BOOL=FALSE
+    configure.args-append       -DUSE_OPENJPEG:BOOL=TRUE -DOPENJPEG_INCLUDE_DIR=${prefix}/include/openjpeg-1.5
+}
+
+variant python26 conflicts python27 description {Add Python 2.6 bindings.} {
+    depends_lib-append          port:python26
+    configure.args-delete       -DUSE_PYTHON:BOOL=FALSE
+    configure.args-append       -DUSE_PYTHON:BOOL=TRUE \
+                                -DPYTHON_VERSION=2.6 \
+                                -DPYTHON_EXECUTABLE=${prefix}/bin/python2.6 \
+                                -DPYTHON_LIBRARY=${prefix}/lib/libpython2.6.dylib \
+                                -DPYTHON_INCLUDE_DIR=${frameworks_dir}/Python.framework/Versions/2.6/Headers \
+                                -DPYTHON_PACKAGES_PATH=${frameworks_dir}/Python.framework/Versions/2.6/lib/python2.6/site-packages
+}
+
+variant python27 conflicts python26 description {Add Python 2.7 bindings.} {
+    depends_lib-append          port:python27
+    configure.args-delete       -DUSE_PYTHON:BOOL=FALSE
+    configure.args-append       -DUSE_PYTHON:BOOL=TRUE \
+                                -DPYTHON_VERSION=2.7 \
+                                -DPYTHON_EXECUTABLE=${prefix}/bin/python2.7 \
+                                -DPYTHON_LIBRARY=${prefix}/lib/libpython2.7.dylib \
+                                -DPYTHON_INCLUDE_DIR=${frameworks_dir}/Python.framework/Versions/2.7/Headers \
+                                -DPYTHON_PACKAGES_PATH=${frameworks_dir}/Python.framework/Versions/2.7/lib/python2.7/site-packages
+}
+
+variant qt4 description {Build the Qt-based image viewer.} {
+    configure.args-delete -DUSE_QT:BOOL=FALSE
+    configure.args-append -DUSE_QT:BOOL=TRUE
+    depends_lib-append port:qt4-mac
+}
+
+variant field3d description {Use Field3D.} {
+    configure.args-delete -DUSE_FIELD3D:BOOL=FALSE
+    configure.args-append -DUSE_FIELD3D:BOOL=TRUE
+    depends_lib-append port:field3d
+}
+
+variant freetype description {Use FreeType.} {
+    configure.args-delete -DUSE_FREETYPE:BOOL=FALSE
+    configure.args-append -DUSE_FREETYPE:BOOL=TRUE -DFREETYPE_INCLUDE_PATH=${prefix}/include/freetype2
+    depends_lib-append port:freetype
+}
+
+variant natron require field3d description {Compile a version to be included in Natron} {
+}
+#configure.args   --enable-bsdtar=shared --enable-bsdcpio=shared \
+#                 --without-lzmadec --without-lzma
+#use_autoreconf	yes
diff --git a/tools/MacOSX/ports/graphics/openimageio/files/oiio-1.5.22-exrthreads.patch b/tools/MacOSX/ports/graphics/openimageio/files/oiio-1.5.22-exrthreads.patch
new file mode 100644
index 0000000000..c6515b8770
--- /dev/null
+++ b/tools/MacOSX/ports/graphics/openimageio/files/oiio-1.5.22-exrthreads.patch
@@ -0,0 +1,117 @@
+diff --git a/src/doc/imageioapi.tex b/src/doc/imageioapi.tex
+index 63425b2..66603ff 100644
+--- a/src/doc/imageioapi.tex
++++ b/src/doc/imageioapi.tex
+@@ -805,11 +805,31 @@ attribute is a string), the attribute will not be modified, and {\cf
+ \vspace{10pt}
+ \index{threads} \label{sec:attribute:threads}
+ Some \product operations can be accelerated if allowed to spawn multiple
+-threads to parallelize the task.  (Examples: decompressing multiple
+-simultaneously-read OpenEXR scanlines, or many \ImageBuf operations.)
+-This attribute sets the maximum number of threads that will be spawned.
+-The default is 1.  If set to 0, it means that it should use as many
++threads to parallelize the task.  (Examples: simultaneous format conversions
++of multiple scanlines read together, or many \ImageBufAlgo operations.)
++This attribute sets the default number of threads that will be spawned
++for these operations (the ``fan out'').
++The default is 0, which means that it should spawn as many
+ threads as there are hardware cores present on the system.
++
++Situations where the main application logic is essentially single threaded
++(i.e., one top-level call into OIIO at a time) should leave this at the
++default value, or some reasonable number of cores, thus allowing lots of
++threads to fill the cores when OIIO has big tasks to complete. But
++situations where you have many threads at the application level, each of
++which is expected to be making separate OIIO calls simultaneously, should
++set this to 1, thus having each calling thread do its own work inside of
++OIIO rather than spawning new threads with a high overall ``fan out.''
++\apiend
++
++\apiitem{int exr_threads}
++\vspace{10pt}
++\index{exr_threads}
++\NEW % 1.6
++Sets the internal OpenEXR thread pool size. The default is to use as many
++threads as the amount of hardware concurrency detected.
++Note that this is separate from the OIIO
++\qkw{threads} attribute.
+ \apiend
+ 
+ \apiitem{string plugin_searchpath}
+diff --git a/src/libOpenImageIO/imageio.cpp b/src/libOpenImageIO/imageio.cpp
+index 3fc2118..56d6054 100644
+--- a/src/libOpenImageIO/imageio.cpp
++++ b/src/libOpenImageIO/imageio.cpp
+@@ -51,6 +51,7 @@ OIIO_NAMESPACE_BEGIN
+ namespace pvt {
+ recursive_mutex imageio_mutex;
+ atomic_int oiio_threads (boost::thread::hardware_concurrency());
++atomic_int oiio_exr_threads (boost::thread::hardware_concurrency());
+ atomic_int oiio_read_chunk (256);
+ ustring plugin_searchpath (OIIO_DEFAULT_PLUGIN_SEARCHPATH);
+ std::string format_list;   // comma-separated list of all formats
+@@ -121,7 +122,7 @@ namespace {
+ // Private global OIIO data.
+ 
+ static spin_mutex attrib_mutex;
+-static const int maxthreads = 64;   // reasonable maximum for sanity check
++static const int maxthreads = 256;   // reasonable maximum for sanity check
+ 
+ };
+ 
+@@ -146,6 +147,10 @@ attribute (string_view name, TypeDesc type, const void *val)
+         plugin_searchpath = ustring (*(const char **)val);
+         return true;
+     }
++    if (name == "exr_threads" && type == TypeDesc::TypeInt) {
++        oiio_exr_threads = Imath::clamp (*(const int *)val, 0, maxthreads);
++        return true;
++    }
+     return false;
+ }
+ 
+@@ -179,6 +184,10 @@ getattribute (string_view name, TypeDesc type, void *val)
+         *(ustring *)val = ustring(extension_list);
+         return true;
+     }
++    if (name == "exr_threads" && type == TypeDesc::TypeInt) {
++        *(int *)val = oiio_exr_threads;
++        return true;
++    }
+     return false;
+ }
+ 
+diff --git a/src/oiiotool/oiiotool.cpp b/src/oiiotool/oiiotool.cpp
+index c484877..e7ca210 100644
+--- a/src/oiiotool/oiiotool.cpp
++++ b/src/oiiotool/oiiotool.cpp
+@@ -328,7 +328,9 @@ static int
+ set_threads (int argc, const char *argv[])
+ {
+     ASSERT (argc == 2);
+-    OIIO::attribute ("threads", atoi(argv[1]));
++    int nthreads = atoi(argv[1]);
++    OIIO::attribute ("threads", nthreads);
++    OIIO::attribute ("exr_threads", nthreads);
+     return 0;
+ }
+ 
+diff --git a/src/openexr.imageio/exrinput.cpp b/src/openexr.imageio/exrinput.cpp
+index 00c6145..40efba2 100644
+--- a/src/openexr.imageio/exrinput.cpp
++++ b/src/openexr.imageio/exrinput.cpp
+@@ -316,12 +316,12 @@ void set_exr_threads ()
+     static spin_mutex exr_threads_mutex;  
+ 
+     int oiio_threads = 1;
+-    OIIO::getattribute ("threads", oiio_threads);
++    OIIO::getattribute ("exr_threads", oiio_threads);
+ 
+     spin_lock lock (exr_threads_mutex);
+     if (exr_threads != oiio_threads) {
+         exr_threads = oiio_threads;
+-        Imf::setGlobalThreadCount (exr_threads == 1 ? 0 : exr_threads);
++        Imf::setGlobalThreadCount (exr_threads);
+     }
+ }
+ 
diff --git a/tools/Windows/common.sh b/tools/Windows/common.sh
index 8e451f09c2..ea865e8674 100644
--- a/tools/Windows/common.sh
+++ b/tools/Windows/common.sh
@@ -41,7 +41,7 @@ PACKAGES=$NATRON_PKG,$CORELIBS_PKG,$PROFILES_PKG,$IOPLUG_PKG,$MISCPLUG_PKG,$AREN
 
 # bump number when OpenColorIO-Configs changes
 GIT_OCIO_CONFIG_TAR=https://github.com/MrKepzie/OpenColorIO-Configs/archive/Natron-v2.0.tar.gz
-COLOR_PROFILES_VERSION=2.0
+COLOR_PROFILES_VERSION=2.0.0
 
 
 # SDK
@@ -120,7 +120,7 @@ GLEW_TAR=glew-1.12.0.tgz
 BOOST_TAR=boost_1_55_0.tar.gz
 CAIRO_TAR=cairo-1.14.2.tar.xz
 OCIO_TAR=OpenColorIO-1.0.9.tar.gz
-OIIO_TAR=oiio-Release-1.6.9.tar.gz 
+OIIO_TAR=oiio-Release-1.5.23.tar.gz 
 PYSIDE_TAR=pyside-qt4.8+1.2.2.tar.bz2
 SHIBOK_TAR=shiboken-1.2.2.tar.bz2
 LIBXML_TAR=libxml2-2.9.2.tar.gz
@@ -133,8 +133,7 @@ MAGICK_TAR=ImageMagick-6.9.2-10.tar.xz
 GIF_TAR=giflib-5.1.1.tar.gz
 #SSL_TAR=openssl-1.0.0r.tar.gz 
 JASP_TAR=jasper-1.900.1.zip
-INSTALLER32_BIN_TAR=natron-win32-installer-extra.zip
-INSTALLER64_BIN_TAR=natron-win64-installer-extra.zip
+INSTALLER_BIN_TAR=natron-windows-installer.zip
 
 FFMPEG_MXE_BIN_64_GPL_TAR=ffmpeg-2.8.3-windows-x86_64-shared-GPLv2.tar.xz
 FFMPEG_MXE_BIN_32_GPL_TAR=ffmpeg-2.8.3-windows-i686-shared-GPLv2.tar.xz
diff --git a/tools/Windows/include/patches/OpenImageIO/oiio-exrthreads.patch b/tools/Windows/include/patches/OpenImageIO/oiio-exrthreads.patch
new file mode 100644
index 0000000000..c6515b8770
--- /dev/null
+++ b/tools/Windows/include/patches/OpenImageIO/oiio-exrthreads.patch
@@ -0,0 +1,117 @@
+diff --git a/src/doc/imageioapi.tex b/src/doc/imageioapi.tex
+index 63425b2..66603ff 100644
+--- a/src/doc/imageioapi.tex
++++ b/src/doc/imageioapi.tex
+@@ -805,11 +805,31 @@ attribute is a string), the attribute will not be modified, and {\cf
+ \vspace{10pt}
+ \index{threads} \label{sec:attribute:threads}
+ Some \product operations can be accelerated if allowed to spawn multiple
+-threads to parallelize the task.  (Examples: decompressing multiple
+-simultaneously-read OpenEXR scanlines, or many \ImageBuf operations.)
+-This attribute sets the maximum number of threads that will be spawned.
+-The default is 1.  If set to 0, it means that it should use as many
++threads to parallelize the task.  (Examples: simultaneous format conversions
++of multiple scanlines read together, or many \ImageBufAlgo operations.)
++This attribute sets the default number of threads that will be spawned
++for these operations (the ``fan out'').
++The default is 0, which means that it should spawn as many
+ threads as there are hardware cores present on the system.
++
++Situations where the main application logic is essentially single threaded
++(i.e., one top-level call into OIIO at a time) should leave this at the
++default value, or some reasonable number of cores, thus allowing lots of
++threads to fill the cores when OIIO has big tasks to complete. But
++situations where you have many threads at the application level, each of
++which is expected to be making separate OIIO calls simultaneously, should
++set this to 1, thus having each calling thread do its own work inside of
++OIIO rather than spawning new threads with a high overall ``fan out.''
++\apiend
++
++\apiitem{int exr_threads}
++\vspace{10pt}
++\index{exr_threads}
++\NEW % 1.6
++Sets the internal OpenEXR thread pool size. The default is to use as many
++threads as the amount of hardware concurrency detected.
++Note that this is separate from the OIIO
++\qkw{threads} attribute.
+ \apiend
+ 
+ \apiitem{string plugin_searchpath}
+diff --git a/src/libOpenImageIO/imageio.cpp b/src/libOpenImageIO/imageio.cpp
+index 3fc2118..56d6054 100644
+--- a/src/libOpenImageIO/imageio.cpp
++++ b/src/libOpenImageIO/imageio.cpp
+@@ -51,6 +51,7 @@ OIIO_NAMESPACE_BEGIN
+ namespace pvt {
+ recursive_mutex imageio_mutex;
+ atomic_int oiio_threads (boost::thread::hardware_concurrency());
++atomic_int oiio_exr_threads (boost::thread::hardware_concurrency());
+ atomic_int oiio_read_chunk (256);
+ ustring plugin_searchpath (OIIO_DEFAULT_PLUGIN_SEARCHPATH);
+ std::string format_list;   // comma-separated list of all formats
+@@ -121,7 +122,7 @@ namespace {
+ // Private global OIIO data.
+ 
+ static spin_mutex attrib_mutex;
+-static const int maxthreads = 64;   // reasonable maximum for sanity check
++static const int maxthreads = 256;   // reasonable maximum for sanity check
+ 
+ };
+ 
+@@ -146,6 +147,10 @@ attribute (string_view name, TypeDesc type, const void *val)
+         plugin_searchpath = ustring (*(const char **)val);
+         return true;
+     }
++    if (name == "exr_threads" && type == TypeDesc::TypeInt) {
++        oiio_exr_threads = Imath::clamp (*(const int *)val, 0, maxthreads);
++        return true;
++    }
+     return false;
+ }
+ 
+@@ -179,6 +184,10 @@ getattribute (string_view name, TypeDesc type, void *val)
+         *(ustring *)val = ustring(extension_list);
+         return true;
+     }
++    if (name == "exr_threads" && type == TypeDesc::TypeInt) {
++        *(int *)val = oiio_exr_threads;
++        return true;
++    }
+     return false;
+ }
+ 
+diff --git a/src/oiiotool/oiiotool.cpp b/src/oiiotool/oiiotool.cpp
+index c484877..e7ca210 100644
+--- a/src/oiiotool/oiiotool.cpp
++++ b/src/oiiotool/oiiotool.cpp
+@@ -328,7 +328,9 @@ static int
+ set_threads (int argc, const char *argv[])
+ {
+     ASSERT (argc == 2);
+-    OIIO::attribute ("threads", atoi(argv[1]));
++    int nthreads = atoi(argv[1]);
++    OIIO::attribute ("threads", nthreads);
++    OIIO::attribute ("exr_threads", nthreads);
+     return 0;
+ }
+ 
+diff --git a/src/openexr.imageio/exrinput.cpp b/src/openexr.imageio/exrinput.cpp
+index 00c6145..40efba2 100644
+--- a/src/openexr.imageio/exrinput.cpp
++++ b/src/openexr.imageio/exrinput.cpp
+@@ -316,12 +316,12 @@ void set_exr_threads ()
+     static spin_mutex exr_threads_mutex;  
+ 
+     int oiio_threads = 1;
+-    OIIO::getattribute ("threads", oiio_threads);
++    OIIO::getattribute ("exr_threads", oiio_threads);
+ 
+     spin_lock lock (exr_threads_mutex);
+     if (exr_threads != oiio_threads) {
+         exr_threads = oiio_threads;
+-        Imf::setGlobalThreadCount (exr_threads == 1 ? 0 : exr_threads);
++        Imf::setGlobalThreadCount (exr_threads);
+     }
+ }
+ 
diff --git a/tools/Windows/include/patches/OpenImageIO/fix-mingw-w64.diff b/tools/Windows/include/patches/fix-mingw-w64-16.diff
similarity index 100%
rename from tools/Windows/include/patches/OpenImageIO/fix-mingw-w64.diff
rename to tools/Windows/include/patches/fix-mingw-w64-16.diff
diff --git a/tools/Windows/include/patches/fix-mingw-w64-16.patch b/tools/Windows/include/patches/fix-mingw-w64-16.patch
new file mode 100644
index 0000000000..10225429b6
--- /dev/null
+++ b/tools/Windows/include/patches/fix-mingw-w64-16.patch
@@ -0,0 +1,204 @@
+--- a/src/include/OpenImageIO/missing_math.h
++++ b/src/include/OpenImageIO/missing_math.h
+@@ -106,7 +106,7 @@
+ 
+ OIIO_NAMESPACE_ENTER {
+ 
+-#ifdef _WIN32
++#if defined(_WIN32) && !defined(__GNUC__)
+ // Windows doesn't define these functions from math.h
+ #define hypotf _hypotf
+ #define copysign(x,y) _copysign(x,y)
+--- a/src/include/OpenImageIO/osdep.h
++++ b/src/include/OpenImageIO/osdep.h
+@@ -33,7 +33,9 @@
+ #ifdef _WIN32
+ # define WIN32_LEAN_AND_MEAN
+ # define VC_EXTRALEAN
++# ifndef __MINGW32__
+ # define NOMINMAX
++# endif
+ # include <windows.h>
+ #endif
+ 
+ 
+--- a/src/libOpenImageIO/CMakeLists.txt
++++ b/src/libOpenImageIO/CMakeLists.txt
+@@ -258,7 +261,7 @@
+ 
+ 
+ if (WIN32)
+-    target_link_libraries (OpenImageIO psapi.lib)
++    target_link_libraries (OpenImageIO psapi ws2_32)
+ endif ()
+ link_ilmbase (OpenImageIO)
+ add_dependencies (OpenImageIO "${CMAKE_CURRENT_SOURCE_DIR}/libOpenImageIO.map")
+--- a/src/libOpenImageIO/imageinput.cpp
++++ b/src/libOpenImageIO/imageinput.cpp
+@@ -32,6 +32,7 @@
+ #include <cstdlib>
+ #include <cmath>
+ #include <vector>
++#include <malloc.h>
+ 
+ #include "dassert.h"
+ #include "typedesc.h"
+--- a/src/libtexture/imagecache.cpp
++++ b/src/libtexture/imagecache.cpp
+@@ -32,6 +32,7 @@
+ #include <string>
+ #include <sstream>
+ #include <vector>
++#include <malloc.h>
+ #include <cstring>
+ 
+ #include <OpenEXR/ImathMatrix.h>
+--- a/src/libtexture/texturesys.cpp
++++ b/src/libtexture/texturesys.cpp
+@@ -30,6 +30,7 @@
+ 
+ 
+ #include <math.h>
++#include <malloc.h>
+ #include <string>
+ #include <sstream>
+ #include <list>
+--- a/src/libutil/argparse.cpp
++++ b/src/libutil/argparse.cpp
+@@ -39,6 +39,7 @@
+ #include <iterator>
+ #include <string>
+ #include <sstream>
++#include <malloc.h>
+ 
+ #include "strutil.h"
+ #include "sysutil.h"
+--- a/src/libutil/filesystem.cpp
++++ b/src/libutil/filesystem.cpp
+@@ -288,7 +288,7 @@
+ FILE*
+ Filesystem::fopen (const std::string &path, const std::string &mode)
+ {
+-#ifdef _WIN32
++#if defined(_WIN32) && !defined(__GNUC__)
+     // on Windows fopen does not accept UTF-8 paths, so we convert to wide char
+     std::wstring wpath = Strutil::utf8_to_utf16 (path);
+     std::wstring wmode = Strutil::utf8_to_utf16 (mode);
+@@ -307,7 +307,7 @@
+                   const std::string &path,
+                   std::ios_base::openmode mode)
+ {
+-#ifdef _WIN32
++#if defined(_WIN32) && !defined(__GNUC__)
+     // Windows std::ifstream accepts non-standard wchar_t* 
+     std::wstring wpath = Strutil::utf8_to_utf16(path);
+     stream.open (wpath.c_str(), mode);
+@@ -324,7 +324,7 @@
+                   const std::string &path,
+                   std::ios_base::openmode mode)
+ {
+-#ifdef _WIN32
++#if defined(_WIN32) && !defined(__GNUC__)
+     // Windows std::ofstream accepts non-standard wchar_t*
+     std::wstring wpath = Strutil::utf8_to_utf16 (path);
+     stream.open (wpath.c_str(), mode);
+--- a/src/libutil/plugin.cpp
++++ b/src/libutil/plugin.cpp
+@@ -93,7 +93,7 @@ dlclose (Handle plugin_handle)
+ void *
+ dlsym (Handle plugin_handle, const char *symbol_name)
+ {
+-    return GetProcAddress ((HMODULE)plugin_handle, symbol_name);
++    return (void *)GetProcAddress ((HMODULE)plugin_handle, symbol_name);
+ }
+ 
+ 
+ 
+--- a/src/libutil/sysutil.cpp
++++ b/src/libutil/sysutil.cpp
+@@ -137,7 +137,7 @@ Sysutil::get_local_time (const time_t *time, struct tm *converted_time)
+ #ifdef _MSC_VER
+     localtime_s (converted_time, time);
+ #else
+-    localtime_r (time, converted_time);
++    *converted_time = *localtime(time);
+ #endif
+ }
+ 
+ 
+--- a/src/ptex.imageio/ptex/PtexCache.cpp
++++ b/src/ptex.imageio/ptex/PtexCache.cpp
+@@ -224,12 +224,21 @@ public:
+ 	// split into dirs
+ 	_searchdirs.clear();
+ 	char* buff = strdup(path);
+-	char* pos = 0;
+-	char* token = strtok_r(buff, ":", &pos);
+-	while (token) {
+-	    if (token[0]) _searchdirs.push_back(token);
+-	    token = strtok_r(0, ":", &pos);
+-	}
++	char* pos = buff;
++
++	do {
++		char *token = pos;
++		pos = strstr(pos, ":");
++
++		if (pos) {
++			pos[0] = '\0';
++			pos++;
++		}
++
++		if (token[0]) _searchdirs.push_back(token);
++
++	} while(pos);
++
+ 	free(buff);
+     }
+ 
+ 
+--- a/src/ptex.imageio/ptex/PtexPlatform.h
++++ b/src/ptex.imageio/ptex/PtexPlatform.h
+@@ -79,11 +79,18 @@ OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGES.
+ 
+ // missing functions on Windows
+ #ifdef WINDOWS
++#if !defined(__GNUC__)
+ #define snprintf sprintf_s
+ #define strtok_r strtok_s
++#endif
+ typedef __int64 FilePos;
++#if !defined(__GNUC__)
+ #define fseeko _fseeki64
+ #define ftello _ftelli64
++#else
++#define fseeko fseek
++#define ftello ftell
++#endif
+ 
+ inline double log2(double x) {
+     return log(x) * 1.4426950408889634; 
+--- a/src/rla.imageio/rlaoutput.cpp
++++ b/src/rla.imageio/rlaoutput.cpp
+@@ -32,6 +32,7 @@
+ #include <cstdlib>
+ #include <cmath>
+ #include <ctime>
++#include <malloc.h>
+ 
+ #include "dassert.h"
+ #include "typedesc.h"
+--- a/src/cmake/modules/FindOpenJpeg.cmake	2013-12-29 23:51:59.071600000 +0400
++++ b/src/cmake/modules/FindOpenJpeg.cmake	2013-12-29 23:52:34.998400000 +0400
+@@ -78,7 +78,9 @@
+        ${OPENJPEG_HOME}/lib64)
+   set (OpenJpeg_include_paths
+        ${OpenJpeg_include_paths}
+-       ${OPENJPEG_HOME}/include)
++       ${OPENJPEG_HOME}/include
++       ${OPENJPEG_HOME}/include/openjpeg
++       ${OPENJPEG_HOME}/include/openjpeg-1.5)
+ endif()
+ 
+ 
+
diff --git a/tools/Windows/include/patches/fix-mingw-w64.patch b/tools/Windows/include/patches/fix-mingw-w64.patch
new file mode 100644
index 0000000000..3dc2e7271b
--- /dev/null
+++ b/tools/Windows/include/patches/fix-mingw-w64.patch
@@ -0,0 +1,251 @@
+--- a/src/cmake/externalpackages.cmake
++++ b/src/cmake/externalpackages.cmake
+@@ -149,6 +149,8 @@ else ()
+     endif ()
+ endif ()
+ 
++add_definitions("-DBOOST_ALL_NO_LIB -DBOOST_THREAD_USE_LIB")
++
+ if (VERBOSE)
+     message (STATUS "Boost found ${Boost_FOUND} ")
+     message (STATUS "Boost version      ${Boost_VERSION}")
+--- a/src/include/OpenImageIO/missing_math.h
++++ b/src/include/OpenImageIO/missing_math.h
+@@ -106,7 +106,7 @@
+ 
+ OIIO_NAMESPACE_ENTER {
+ 
+-#ifdef _WIN32
++#if defined(_WIN32) && !defined(__GNUC__)
+ // Windows doesn't define these functions from math.h
+ #define hypotf _hypotf
+ #define copysign(x,y) _copysign(x,y)
+--- a/src/include/OpenImageIO/osdep.h
++++ b/src/include/OpenImageIO/osdep.h
+@@ -33,7 +33,9 @@
+ #ifdef _WIN32
+ # define WIN32_LEAN_AND_MEAN
+ # define VC_EXTRALEAN
++# ifndef __MINGW32__
+ # define NOMINMAX
++# endif
+ # include <windows.h>
+ #endif
+ 
+--- a/src/include/OpenImageIO/thread.h
++++ b/src/include/OpenImageIO/thread.h
+@@ -98,6 +98,7 @@
+ #endif
+ 
+ #if defined(__GNUC__) && (defined(_GLIBCXX_ATOMIC_BUILTINS) || (__GNUC__ * 100 + __GNUC_MINOR__ >= 401))
++#include <sched.h>
+ #define USE_GCC_ATOMICS
+ #endif
+ 
+--- a/src/libOpenImageIO/CMakeLists.txt
++++ b/src/libOpenImageIO/CMakeLists.txt
+@@ -258,7 +261,7 @@
+ 
+ 
+ if (WIN32)
+-    target_link_libraries (OpenImageIO psapi.lib)
++    target_link_libraries (OpenImageIO psapi ws2_32)
+ endif ()
+ link_ilmbase (OpenImageIO)
+ add_dependencies (OpenImageIO "${CMAKE_CURRENT_SOURCE_DIR}/libOpenImageIO.map")
+--- a/src/libOpenImageIO/exif.cpp
++++ b/src/libOpenImageIO/exif.cpp
+@@ -36,6 +36,7 @@
+ #include <map>
+ #include <set>
+ #include <algorithm>
++#include <malloc.h>
+ 
+ #include <boost/foreach.hpp>
+ 
+--- a/src/libOpenImageIO/imageinput.cpp
++++ b/src/libOpenImageIO/imageinput.cpp
+@@ -32,6 +32,7 @@
+ #include <cstdlib>
+ #include <cmath>
+ #include <vector>
++#include <malloc.h>
+ 
+ #include "dassert.h"
+ #include "typedesc.h"
+--- a/src/libtexture/imagecache.cpp
++++ b/src/libtexture/imagecache.cpp
+@@ -32,6 +32,7 @@
+ #include <string>
+ #include <sstream>
+ #include <vector>
++#include <malloc.h>
+ #include <cstring>
+ 
+ #include <OpenEXR/ImathMatrix.h>
+--- a/src/libtexture/texoptions.cpp
++++ b/src/libtexture/texoptions.cpp
+@@ -29,6 +29,7 @@
+ */
+ 
+ #include <string>
++#include <malloc.h>
+ #include <boost/scoped_ptr.hpp>
+ #include <boost/tr1/memory.hpp>
+ using namespace std::tr1;
+--- a/src/libtexture/texturesys.cpp
++++ b/src/libtexture/texturesys.cpp
+@@ -30,6 +30,7 @@
+ 
+ 
+ #include <math.h>
++#include <malloc.h>
+ #include <string>
+ #include <sstream>
+ #include <list>
+--- a/src/libutil/argparse.cpp
++++ b/src/libutil/argparse.cpp
+@@ -39,6 +39,7 @@
+ #include <iterator>
+ #include <string>
+ #include <sstream>
++#include <malloc.h>
+ 
+ #include "strutil.h"
+ #include "sysutil.h"
+--- a/src/libutil/filesystem.cpp
++++ b/src/libutil/filesystem.cpp
+@@ -288,7 +288,7 @@
+ FILE*
+ Filesystem::fopen (const std::string &path, const std::string &mode)
+ {
+-#ifdef _WIN32
++#if defined(_WIN32) && !defined(__GNUC__)
+     // on Windows fopen does not accept UTF-8 paths, so we convert to wide char
+     std::wstring wpath = Strutil::utf8_to_utf16 (path);
+     std::wstring wmode = Strutil::utf8_to_utf16 (mode);
+@@ -307,7 +307,7 @@
+                   const std::string &path,
+                   std::ios_base::openmode mode)
+ {
+-#ifdef _WIN32
++#if defined(_WIN32) && !defined(__GNUC__)
+     // Windows std::ifstream accepts non-standard wchar_t* 
+     std::wstring wpath = Strutil::utf8_to_utf16(path);
+     stream.open (wpath.c_str(), mode);
+@@ -324,7 +324,7 @@
+                   const std::string &path,
+                   std::ios_base::openmode mode)
+ {
+-#ifdef _WIN32
++#if defined(_WIN32) && !defined(__GNUC__)
+     // Windows std::ofstream accepts non-standard wchar_t*
+     std::wstring wpath = Strutil::utf8_to_utf16 (path);
+     stream.open (wpath.c_str(), mode);
+--- a/src/libutil/plugin.cpp
++++ b/src/libutil/plugin.cpp
+@@ -93,7 +93,7 @@ dlclose (Handle plugin_handle)
+ void *
+ dlsym (Handle plugin_handle, const char *symbol_name)
+ {
+-    return GetProcAddress ((HMODULE)plugin_handle, symbol_name);
++    return (void *)GetProcAddress ((HMODULE)plugin_handle, symbol_name);
+ }
+ 
+ 
+--- a/src/libutil/sysutil.cpp
++++ b/src/libutil/sysutil.cpp
+@@ -137,7 +137,7 @@ Sysutil::get_local_time (const time_t *time, struct tm *converted_time)
+ #ifdef _MSC_VER
+     localtime_s (converted_time, time);
+ #else
+-    localtime_r (time, converted_time);
++    *converted_time = *localtime(time);
+ #endif
+ }
+ 
+--- a/src/ptex.imageio/ptex/PtexCache.cpp
++++ b/src/ptex.imageio/ptex/PtexCache.cpp
+@@ -224,12 +224,21 @@ public:
+ 	// split into dirs
+ 	_searchdirs.clear();
+ 	char* buff = strdup(path);
+-	char* pos = 0;
+-	char* token = strtok_r(buff, ":", &pos);
+-	while (token) {
+-	    if (token[0]) _searchdirs.push_back(token);
+-	    token = strtok_r(0, ":", &pos);
+-	}
++	char* pos = buff;
++
++	do {
++		char *token = pos;
++		pos = strstr(pos, ":");
++
++		if (pos) {
++			pos[0] = '\0';
++			pos++;
++		}
++
++		if (token[0]) _searchdirs.push_back(token);
++
++	} while(pos);
++
+ 	free(buff);
+     }
+ 
+--- a/src/ptex.imageio/ptex/PtexPlatform.h
++++ b/src/ptex.imageio/ptex/PtexPlatform.h
+@@ -79,11 +79,18 @@ OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGES.
+ 
+ // missing functions on Windows
+ #ifdef WINDOWS
++#if !defined(__GNUC__)
+ #define snprintf sprintf_s
+ #define strtok_r strtok_s
++#endif
+ typedef __int64 FilePos;
++#if !defined(__GNUC__)
+ #define fseeko _fseeki64
+ #define ftello _ftelli64
++#else
++#define fseeko fseek
++#define ftello ftell
++#endif
+ 
+ inline double log2(double x) {
+     return log(x) * 1.4426950408889634; 
+--- a/src/rla.imageio/rlaoutput.cpp
++++ b/src/rla.imageio/rlaoutput.cpp
+@@ -32,6 +32,7 @@
+ #include <cstdlib>
+ #include <cmath>
+ #include <ctime>
++#include <malloc.h>
+ 
+ #include "dassert.h"
+ #include "typedesc.h"
+--- a/src/cmake/modules/FindOpenJpeg.cmake	2013-12-29 23:51:59.071600000 +0400
++++ b/src/cmake/modules/FindOpenJpeg.cmake	2013-12-29 23:52:34.998400000 +0400
+@@ -78,7 +78,9 @@
+        ${OPENJPEG_HOME}/lib64)
+   set (OpenJpeg_include_paths
+        ${OpenJpeg_include_paths}
+-       ${OPENJPEG_HOME}/include)
++       ${OPENJPEG_HOME}/include
++       ${OPENJPEG_HOME}/include/openjpeg
++       ${OPENJPEG_HOME}/include/openjpeg-1.5)
+ endif()
+ 
+ 
+--- a/CMakeLists.txt	2013-12-30 01:06:13.042400000 +0400
++++ b/CMakeLists.txt	2013-12-30 01:06:22.293200000 +0400
+@@ -423,7 +423,7 @@
+     set (CPACK_GENERATOR "TGZ;STGZ;PackageMaker")
+     set (CPACK_SOURCE_GENERATOR "TGZ")
+ endif ()
+-if (WIN32)
++if (WIN32 AND NOT MINGW)
+     set (CPACK_GENERATOR "NSIS")
+     set(CPACK_PACKAGE_EXECUTABLES "iv" "iv - Image Viewer")
+ #    set(CPACK_CREATE_DESCTOP_LINKS "iv" "iv - Image Viewer")
diff --git a/tools/Windows/include/scripts/build-natron.sh b/tools/Windows/include/scripts/build-natron.sh
index 9c0b3dfb71..a0fcf89a83 100644
--- a/tools/Windows/include/scripts/build-natron.sh
+++ b/tools/Windows/include/scripts/build-natron.sh
@@ -155,6 +155,8 @@ if [ ! -d "$SRC_PATH/OpenColorIO-Configs" ]; then
     (cd "$SRC_PATH"; tar xf OpenColorIO-Configs.tar.gz) || exit 1
     rm "$SRC_PATH/OpenColorIO-Configs.tar.gz" || exit 1
     mv "$SRC_PATH/OpenColorIO-Configs"* "$SRC_PATH/OpenColorIO-Configs" || exit 1
+	rm -rf "$SRC_PATH/OpenColorIO-Configs/aces_1.0.1/baked"
+	rm -rf "$SRC_PATH/OpenColorIO-Configs/aces_1.0.1/python"
 fi
 
 cp -a "$SRC_PATH/OpenColorIO-Configs" "$INSTALL_PATH/share/" || exit 1
diff --git a/tools/Windows/include/scripts/build-sdk.sh b/tools/Windows/include/scripts/build-sdk.sh
index 03bfb08225..6f6486d263 100644
--- a/tools/Windows/include/scripts/build-sdk.sh
+++ b/tools/Windows/include/scripts/build-sdk.sh
@@ -15,14 +15,12 @@ if [ "$1" = "32" ]; then
     PKG_PREFIX=$PKG_PREFIX32
     FFMPEG_MXE_BIN_GPL=$FFMPEG_MXE_BIN_32_GPL_TAR
     FFMPEG_MXE_BIN_LGPL=$FFMPEG_MXE_BIN_32_LGPL_TAR
-    INSTALLER_BIN_TAR=$INSTALLER32_BIN_TAR
 elif [ "$1" = "64" ]; then
     BIT=64
     INSTALL_PATH=$INSTALL64_PATH
     PKG_PREFIX=$PKG_PREFIX64
     FFMPEG_MXE_BIN_GPL=$FFMPEG_MXE_BIN_64_GPL_TAR
     FFMPEG_MXE_BIN_LGPL=$FFMPEG_MXE_BIN_64_LGPL_TAR
-    INSTALLER_BIN_TAR=$INSTALLER64_BIN_TAR
 else
     echo "Usage build-sdk.sh <BIT>"
     exit 1
@@ -137,9 +135,11 @@ if [ ! -f $INSTALL_PATH/bin/libOpenImageIO.dll ]; then
     cd oiio-Release-* || exit 1
     OIIO_PATCHES=$CWD/include/patches/OpenImageIO
     patch -p1 -i ${OIIO_PATCHES}/fix-mingw-w64.patch  || exit 1
-    patch -p0 -i ${OIIO_PATCHES}/fix-mingw-w64.diff || exit 1
+    # 1.6.x # patch -p1 -i ${OIIO_PATCHES}/fix-mingw-w64-16.patch  || exit 1
+    # 1.6.x # patch -p0 -i ${OIIO_PATCHES}/fix-mingw-w64-16.diff || exit 1
     patch -p1 -i ${OIIO_PATCHES}/workaround-ansidecl-h-PTR-define-conflict.patch || exit 1
     patch -p1 -i ${OIIO_PATCHES}/0001-MinGW-w64-include-winbase-h-early-for-TCHAR-types.patch  || exit 1
+    patch -p1 -i ${OIIO_PATCHES}/oiio-exrthreads.patch || exit 1
     #patch -p1 -i ${OIIO_PATCHES}/0002-Also-link-to-opencv_videoio-library.patch  || exit 1
 	rm -rf build
     mkdir build || exit 1
@@ -254,26 +254,12 @@ done
 
 #Make sure we have mt.exe for embedding manifests
 
-if [ ! -f "${INSTALL_PATH}/bin/repogen.exe" ] || [ "$DOWNLOAD_INSTALLER" = "1" ]; then
+if [ ! -f "${INSTALL_PATH}/bin/repogen.exe" ] || [ "$DOWNLOAD_INSTALLER" = "1" ] || [ ! -f "/mingw32/bin/dump_syms.exe" ] || [ ! -f "/mingw64/bin/dump_syms.exe" ] || [ ! -f "/mingw32/bin/mt.exe" ] || [ ! -f "/mingw64/bin/mt.exe" ]; then
     cd $SRC_PATH
     wget $THIRD_PARTY_BIN_URL/$INSTALLER_BIN_TAR -O $SRC_PATH/$INSTALLER_BIN_TAR || exit 1
     unzip $CWD/src/$INSTALLER_BIN_TAR || exit 1
-    cd natron-win$BIT-installer* || exit 1
-    if [ -d "bin" ]; then
-        cd bin
-    fi
-    cp mt.exe /usr/bin || exit 1
-    cp archivegen.exe $INSTALL_PATH/bin || exit 1
-    cp binarycreator.exe $INSTALL_PATH/bin || exit 1
-    cp installerbase.exe $INSTALL_PATH/bin || exit 1
-    cp repogen.exe $INSTALL_PATH/bin || exit 1
-fi
-
-if [ ! -f "/mingw32/bin/dump_syms.exe" ] || [ ! -f "/mingw64/bin/dump_syms.exe" ]; then
-  cd $SRC_PATH || exit 1
-  wget $THIRD_PARTY_BIN_URL/dump_syms.exe -O $SRC_PATH/dump_syms.exe || exit 1
-  cp dump_syms.exe /mingw64/bin/ || exit 1
-  cp dump_syms.exe /mingw32/bin/ || exit 1
+    cp -a natron-win-installer/mingw32/bin/* /mingw32/bin/  || exit 1
+    cp -a natron-win-installer/mingw64/bin/* /mingw64/bin/ || exit 1
 fi
 
 echo
diff --git a/tools/Windows/include/scripts/setup-msys.sh b/tools/Windows/include/scripts/setup-msys.sh
index f7e5800f0d..1f701670b2 100644
--- a/tools/Windows/include/scripts/setup-msys.sh
+++ b/tools/Windows/include/scripts/setup-msys.sh
@@ -50,7 +50,7 @@ pacman $PKG_INSTALL_OPS ${PKG_PREFIX}pango
 pacman $PKG_INSTALL_OPS ${PKG_PREFIX}librsvg
 pacman $PKG_INSTALL_OPS ${PKG_PREFIX}libzip
 pacman $PKG_INSTALL_OPS ${PKG_PREFIX}cmake
-pacman $PKG_INSTALL_OPS wget tar diffutils file gawk gettext grep make patch patchutils pkg-config sed unzip git bison flex rsync
+pacman $PKG_INSTALL_OPS wget tar diffutils file gawk gettext grep make patch patchutils pkg-config sed unzip git bison flex rsync zip
 
 # needed by oiio
 if [ ! -f /mingw${1}/include/byteswap.h ]; then
diff --git a/tools/linux/common.sh b/tools/linux/common.sh
index 61d0454f09..c8d9661531 100644
--- a/tools/linux/common.sh
+++ b/tools/linux/common.sh
@@ -47,7 +47,7 @@ PACKAGES=$NATRON_PKG,$CORELIBS_PKG,$PROFILES_PKG,$IOPLUG_PKG,$MISCPLUG_PKG,$AREN
 
 # bump number when OpenColorIO-Configs changes
 GIT_OCIO_CONFIG_TAR=https://github.com/MrKepzie/OpenColorIO-Configs/archive/Natron-v2.0.tar.gz
-COLOR_PROFILES_VERSION=2.0.0
+COLOR_PROFILES_VERSION=2.0.1
 
 # bump timestamp on SDK changes, important!
 CORELIBS_VERSION=20160121
@@ -136,7 +136,7 @@ BOOST_TAR=boost_1_55_0.tar.bz2
 CAIRO_TAR=cairo-1.14.6.tar.xz
 FFMPEG_TAR=ffmpeg-2.8.5.tar.xz
 OCIO_TAR=OpenColorIO-1.0.9.tar.gz
-OIIO_TAR=oiio-Release-1.6.9.tar.gz
+OIIO_TAR=oiio-Release-1.5.23.tar.gz
 PYSIDE_TAR=pyside-qt4.8+1.2.2.tar.bz2
 PYSIDE2_TAR=pyside2-2.0.0.dev0.tar.gz
 SHIBOK_TAR=shiboken-1.2.2.tar.bz2
diff --git a/tools/linux/include/patches/OpenImageIO/oiio-exrthreads.patch b/tools/linux/include/patches/OpenImageIO/oiio-exrthreads.patch
new file mode 100644
index 0000000000..c6515b8770
--- /dev/null
+++ b/tools/linux/include/patches/OpenImageIO/oiio-exrthreads.patch
@@ -0,0 +1,117 @@
+diff --git a/src/doc/imageioapi.tex b/src/doc/imageioapi.tex
+index 63425b2..66603ff 100644
+--- a/src/doc/imageioapi.tex
++++ b/src/doc/imageioapi.tex
+@@ -805,11 +805,31 @@ attribute is a string), the attribute will not be modified, and {\cf
+ \vspace{10pt}
+ \index{threads} \label{sec:attribute:threads}
+ Some \product operations can be accelerated if allowed to spawn multiple
+-threads to parallelize the task.  (Examples: decompressing multiple
+-simultaneously-read OpenEXR scanlines, or many \ImageBuf operations.)
+-This attribute sets the maximum number of threads that will be spawned.
+-The default is 1.  If set to 0, it means that it should use as many
++threads to parallelize the task.  (Examples: simultaneous format conversions
++of multiple scanlines read together, or many \ImageBufAlgo operations.)
++This attribute sets the default number of threads that will be spawned
++for these operations (the ``fan out'').
++The default is 0, which means that it should spawn as many
+ threads as there are hardware cores present on the system.
++
++Situations where the main application logic is essentially single threaded
++(i.e., one top-level call into OIIO at a time) should leave this at the
++default value, or some reasonable number of cores, thus allowing lots of
++threads to fill the cores when OIIO has big tasks to complete. But
++situations where you have many threads at the application level, each of
++which is expected to be making separate OIIO calls simultaneously, should
++set this to 1, thus having each calling thread do its own work inside of
++OIIO rather than spawning new threads with a high overall ``fan out.''
++\apiend
++
++\apiitem{int exr_threads}
++\vspace{10pt}
++\index{exr_threads}
++\NEW % 1.6
++Sets the internal OpenEXR thread pool size. The default is to use as many
++threads as the amount of hardware concurrency detected.
++Note that this is separate from the OIIO
++\qkw{threads} attribute.
+ \apiend
+ 
+ \apiitem{string plugin_searchpath}
+diff --git a/src/libOpenImageIO/imageio.cpp b/src/libOpenImageIO/imageio.cpp
+index 3fc2118..56d6054 100644
+--- a/src/libOpenImageIO/imageio.cpp
++++ b/src/libOpenImageIO/imageio.cpp
+@@ -51,6 +51,7 @@ OIIO_NAMESPACE_BEGIN
+ namespace pvt {
+ recursive_mutex imageio_mutex;
+ atomic_int oiio_threads (boost::thread::hardware_concurrency());
++atomic_int oiio_exr_threads (boost::thread::hardware_concurrency());
+ atomic_int oiio_read_chunk (256);
+ ustring plugin_searchpath (OIIO_DEFAULT_PLUGIN_SEARCHPATH);
+ std::string format_list;   // comma-separated list of all formats
+@@ -121,7 +122,7 @@ namespace {
+ // Private global OIIO data.
+ 
+ static spin_mutex attrib_mutex;
+-static const int maxthreads = 64;   // reasonable maximum for sanity check
++static const int maxthreads = 256;   // reasonable maximum for sanity check
+ 
+ };
+ 
+@@ -146,6 +147,10 @@ attribute (string_view name, TypeDesc type, const void *val)
+         plugin_searchpath = ustring (*(const char **)val);
+         return true;
+     }
++    if (name == "exr_threads" && type == TypeDesc::TypeInt) {
++        oiio_exr_threads = Imath::clamp (*(const int *)val, 0, maxthreads);
++        return true;
++    }
+     return false;
+ }
+ 
+@@ -179,6 +184,10 @@ getattribute (string_view name, TypeDesc type, void *val)
+         *(ustring *)val = ustring(extension_list);
+         return true;
+     }
++    if (name == "exr_threads" && type == TypeDesc::TypeInt) {
++        *(int *)val = oiio_exr_threads;
++        return true;
++    }
+     return false;
+ }
+ 
+diff --git a/src/oiiotool/oiiotool.cpp b/src/oiiotool/oiiotool.cpp
+index c484877..e7ca210 100644
+--- a/src/oiiotool/oiiotool.cpp
++++ b/src/oiiotool/oiiotool.cpp
+@@ -328,7 +328,9 @@ static int
+ set_threads (int argc, const char *argv[])
+ {
+     ASSERT (argc == 2);
+-    OIIO::attribute ("threads", atoi(argv[1]));
++    int nthreads = atoi(argv[1]);
++    OIIO::attribute ("threads", nthreads);
++    OIIO::attribute ("exr_threads", nthreads);
+     return 0;
+ }
+ 
+diff --git a/src/openexr.imageio/exrinput.cpp b/src/openexr.imageio/exrinput.cpp
+index 00c6145..40efba2 100644
+--- a/src/openexr.imageio/exrinput.cpp
++++ b/src/openexr.imageio/exrinput.cpp
+@@ -316,12 +316,12 @@ void set_exr_threads ()
+     static spin_mutex exr_threads_mutex;  
+ 
+     int oiio_threads = 1;
+-    OIIO::getattribute ("threads", oiio_threads);
++    OIIO::getattribute ("exr_threads", oiio_threads);
+ 
+     spin_lock lock (exr_threads_mutex);
+     if (exr_threads != oiio_threads) {
+         exr_threads = oiio_threads;
+-        Imf::setGlobalThreadCount (exr_threads == 1 ? 0 : exr_threads);
++        Imf::setGlobalThreadCount (exr_threads);
+     }
+ }
+ 
diff --git a/tools/linux/include/scripts/build-natron.sh b/tools/linux/include/scripts/build-natron.sh
index 8e08d79dc6..035bdf522e 100644
--- a/tools/linux/include/scripts/build-natron.sh
+++ b/tools/linux/include/scripts/build-natron.sh
@@ -194,6 +194,8 @@ if [ ! -d "$SRC_PATH/OpenColorIO-Configs" ]; then
     (cd "$SRC_PATH"; tar xf OpenColorIO-Configs.tar.gz) || exit 1
     rm "$SRC_PATH/OpenColorIO-Configs.tar.gz" || exit 1
     mv "$SRC_PATH/OpenColorIO-Configs"* "$SRC_PATH/OpenColorIO-Configs" || exit 1
+	rm -rf "$SRC_PATH/OpenColorIO-Configs/aces_1.0.1/baked"
+	rm -rf "$SRC_PATH/OpenColorIO-Configs/aces_1.0.1/python"
 fi
 
 cp -a $SRC_PATH/OpenColorIO-Configs $INSTALL_PATH/share/ || exit 1
diff --git a/tools/linux/include/scripts/build-sdk.sh b/tools/linux/include/scripts/build-sdk.sh
index 023c6e4099..f140881029 100644
--- a/tools/linux/include/scripts/build-sdk.sh
+++ b/tools/linux/include/scripts/build-sdk.sh
@@ -844,10 +844,10 @@ if [ ! -f $INSTALL_PATH/lib/libOpenImageIO.so ]; then
     fi
     tar xvf $SRC_PATH/$OIIO_TAR || exit 1
     cd oiio-Release-* || exit 1
-    #patch -p1 -i $INC_PATH/patches/OpenImageIO/oiio-exrthreads.patch || exit 1
+    patch -p1 -i $INC_PATH/patches/OpenImageIO/oiio-exrthreads.patch || exit 1
     mkdir build || exit 1
     cd build || exit 1
-    env CFLAGS="$BF" CXXFLAGS="$BF" CPPFLAGS="-I${INSTALL_PATH}/include" LDFLAGS="-L${INSTALL_PATH}/lib" CXXFLAGS="-fPIC" cmake -DUSE_OPENCV:BOOL=FALSE -DUSE_OPENSSL:BOOL=FALSE -DOPENEXR_HOME=$INSTALL_PATH -DILMBASE_HOME=$INSTALL_PATH -DTHIRD_PARTY_TOOLS_HOME=$INSTALL_PATH -DUSE_QT:BOOL=FALSE -DUSE_TBB:BOOL=FALSE -DUSE_PYTHON:BOOL=FALSE -DUSE_FIELD3D:BOOL=FALSE -DOIIO_BUILD_TESTS=0 -DOIIO_BUILD_TOOLS=0 -DUSE_LIB_RAW=1 -DLIBRAW_PATH=$INSTALL_PATH -DCMAKE_INSTALL_PREFIX=$INSTALL_PATH -DBOOST_ROOT=$INSTALL_PATH -DSTOP_ON_WARNING:BOOL=FALSE -DUSE_GIF:BOOL=TRUE -DUSE_FREETYPE:BOOL=TRUE -DFREETYPE_INCLUDE_PATH=$INSTALL_PATH/include -DUSE_FFMPEG:BOOL=FALSE -DLINKSTATIC=0 -DBUILDSTATIC=0 -DOPENJPEG_HOME=$INSTALL_PATH -DOPENJPEG_INCLUDE_DIR=$INSTALL_PATH/include/openjpeg-1.5 -DOPENJPEG_LIBRARIES=$INSTALL_PATH/lib -DUSE_OPENJPEG:BOOL=TRUE .. || exit 1 
+    env CFLAGS="$BF" CXXFLAGS="$BF" CPPFLAGS="-I${INSTALL_PATH}/include" LDFLAGS="-L${INSTALL_PATH}/lib" CXXFLAGS="-fPIC" cmake -DUSE_OPENCV:BOOL=FALSE -DUSE_OPENSSL:BOOL=FALSE -DOPENEXR_HOME=$INSTALL_PATH -DILMBASE_HOME=$INSTALL_PATH -DTHIRD_PARTY_TOOLS_HOME=$INSTALL_PATH -DUSE_QT:BOOL=FALSE -DUSE_TBB:BOOL=FALSE -DUSE_PYTHON:BOOL=FALSE -DUSE_FIELD3D:BOOL=FALSE -DOIIO_BUILD_TESTS=0 -DOIIO_BUILD_TOOLS=1 -DUSE_LIB_RAW=1 -DLIBRAW_PATH=$INSTALL_PATH -DCMAKE_INSTALL_PREFIX=$INSTALL_PATH -DBOOST_ROOT=$INSTALL_PATH -DSTOP_ON_WARNING:BOOL=FALSE -DUSE_GIF:BOOL=TRUE -DUSE_FREETYPE:BOOL=TRUE -DFREETYPE_INCLUDE_PATH=$INSTALL_PATH/include -DUSE_FFMPEG:BOOL=FALSE -DLINKSTATIC=0 -DBUILDSTATIC=0 -DOPENJPEG_HOME=$INSTALL_PATH -DOPENJPEG_INCLUDE_DIR=$INSTALL_PATH/include/openjpeg-1.5 -DOPENJPEG_LIBRARIES=$INSTALL_PATH/lib -DUSE_OPENJPEG:BOOL=TRUE .. || exit 1 
     make -j${MKJOBS} || exit 1
     make install || exit 1
     if [ "$DDIR" != "" ]; then