Add build rule for build-octave (bug #49503). * src/build-octave.mk: Add new build rule for build-octave which can be used for cross-building binary packages that depend on Octave as a build tool. * dist-files.mk: Add new file to list. * index.html: Add new package to list. * src/of-communications.mk, src/of-image.mk, src/of-mapping.mk, src/of-optiminterp.mk, src/of-sparsersb.mk, src/of-statistics.mk, src/of-windows.mk: Add optional dependency on build-octave. * configure.ac: Add new configure switch "--disable-system-octave" that is needed to build the build-octave package. * Makefile.in: Add variable "USE_SYSTEM_OCTAVE". Exclude build-octave from the default build tools and build it only if a package explicitly depends on it. Display warning about missing native Octave version only if necessary.

diff -ur qt-everywhere-opensource-src-4.8.7.orig/tools/linguist/shared/profileevaluator.cpp qt-everywhere-opensource-src-4.8.7/tools/linguist/shared/profileevaluator.cpp
--- qt-everywhere-opensource-src-4.8.7.orig/tools/linguist/shared/profileevaluator.cpp	2015-06-07 17:14:32.348070244 -0400
+++ qt-everywhere-opensource-src-4.8.7/tools/linguist/shared/profileevaluator.cpp	2015-06-07 17:16:43.792075123 -0400
@@ -65,7 +65,7 @@
 #include <unistd.h>
 #include <sys/utsname.h>
 #else
-#include <Windows.h>
+#include <windows.h>
 #endif
 #include <stdio.h>
 #include <stdlib.h>