Fix build failure with GCC 7

vigra-1.11.0-const-swap.patch

@@ -0,0 +1,25 @@
+From 18675a51fca27b324eb4e4b49593bcee9bc4535e Mon Sep 17 00:00:00 2001
+From: Jonathan Wakely <jwakely@redhat.com>
+Date: Fri, 17 Feb 2017 00:55:25 +0000
+Subject: [PATCH] Fix parameter of ImagePyramid::swap
+
+You can't swap with a const object. This fixes a compilation failure
+with GCC 7 which rejects the incorrect function even if it isn't
+instantiated.
+---
+ include/vigra/imagecontainer.hxx | 2 +-
+ 1 file changed, 1 insertion(+), 1 deletion(-)
+
+diff --git a/include/vigra/imagecontainer.hxx b/include/vigra/imagecontainer.hxx
+index a6f0f80..636cc64 100644
+--- a/include/vigra/imagecontainer.hxx
++++ b/include/vigra/imagecontainer.hxx
+@@ -763,7 +763,7 @@ public:
+         /** swap contents of this array with the contents of other
+             (STL-Container interface)
+          */
+-    void swap(const ImagePyramid<ImageType, Alloc> &other)
++    void swap(ImagePyramid<ImageType, Alloc> &other)
+     {
+         images_.swap(other.images_);
+         std::swap(lowestLevel_, other.lowestLevel_);

vigra.spec

@@ -22,6 +22,8 @@ BuildRequires:  hdf5-devel python-sphinx numpy-f2py boost-python OpenEXR-devel
 Patch0: vigra.rhbz987048.shebang.patch
 # https://github.com/ukoethe/vigra/pull/212
 Patch2: vigra-1.10.0-no-lenna.patch
+# https://github.com/ukoethe/vigra/pull/405
+Patch3: vigra-1.11.0-const-swap.patch
 
 %description
 VIGRA stands for "Vision with Generic Algorithms". It's a novel computer vision
@@ -59,6 +61,7 @@ The vigra-python package provides python bindings for vigra
 #patch0 -p1 -b .rhbz987048.shebang.patch
 %patch0 -p1
 %patch2 -p1 -b .no-lenna
+%patch3 -p1 -b .const-swap
 
 %build
 %if ! 0%{?rhel}
@@ -109,6 +112,9 @@ rm -rf %{buildroot}
 %endif
 
 %changelog
+* Fri Feb 17 2017 Jonathan Wakely <jwakely@redhat.com> - 1.11.0-5
+- Fix build failure with GCC 7
+
 * Sat Feb 11 2017 Fedora Release Engineering <releng@fedoraproject.org> - 1.11.0-5
 - Rebuilt for https://fedoraproject.org/wiki/Fedora_26_Mass_Rebuild