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Java 1.5 is EOL, and JDK 9 drops support for targeting it. https://lists.andrew.cmu.edu/pipermail/openslide-users/2016-September/001297.html http://openjdk.java.net/jeps/182 http://www.oracle.com/technetwork/java/eol-135779.html
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Silence error messages from /usr/libexec/java_home when computing the default JRE search path. We were producing the following: checking for OPENSLIDE... yes Unable to find any JVMs matching version "(null)". No Java runtime present, try --request to install. checking for jni.h... not found
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Cross builds can't use JNI headers from the build machine, since Linux installs of the JDK don't include the Windows version of jni_md.h. We've been working around this by using GCJ's portable implementation of the JNI headers in the GCC include directory, but GCJ is starting to be removed from Linux distributions (e.g. Fedora 21). Add a copy of the Classpath JNI headers for use in cross builds.
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We were implementing OpenSlide.equals() by comparing quickhashes, but that doesn't work on slides that don't have one. In this case, fall back to comparing the canonicalized paths of the slide files.
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openslide_can_open() is slow and deprecated. openslide_detect_vendor() can return non-null on files that openslide_open() will reject, so we don't attempt to implement a fileIsValid() method with it.
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There's nothing OpenSlide-specific about its design: it's a static tiler that only reads slide level 0. VIPS has a good format-independent tiler along similar lines; anyone who needs static tiling should just use that. Closes #18.
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On Windows, the library won't load unless it is executable.
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In OpenSlide 3.3, openslide_open() may return a handle in error state.
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It provides nice packages of mingw-w64, additional tools like pkg-config that aren't available in MSYS, and a cleaner build procedure overall.
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When building on Cygwin, the Ant builddir property must be a Windows path, not a Cygwin path.
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which is disrecommended by the Autoconf manual.
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libtool will still choke if any of these paths contain whitespace.
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Oracle javac 1.7 has a new warning: warning: [options] bootstrap class path not set in conjunction with -source 1.5 We're not going to hardcode a Java 1.5 bootstrap classpath to heed the intent of this warning. Continuing to declare source="1.5" seems worthwhile for catching major source-compatibility mistakes. target="1.5" doesn't seem to hurt, and anyway setting the property is strongly recommended by the Ant documentation. So, even though it's insufficient for Java 1.5 binary compatibility, we're left with the status quo. Disable the warning. -
We already require it implicitly due to dist-xz.