Bootstrap openjdk #35
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- gcj and some other tools under bin are needed to bootstrap the openjdk builds (Using a 'regular' jdk does not work). Only drawback, one also needs the 'alien' ecj (Eclipse-Java) compiler to get a working gcj. - g++ has been setup to use the old c++ abi per default, since I expect, that if it is used, its used to compile old stuff. (Note: -D_GLIBCXX_USE_CXX11_ABI=[0|1] works of course)
Parallel builds with 'nproc' tend to be instable, 4 processes seem to be a safe choice. NB: Our beloved 'KVM'-viewer runs neatly with this version.
So here is a 'open' version of the jdk, tested with IGV and gephi.
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This little bundle brings basic 'open-source' Java-support. Creating real binaries with gcj might also be 'a nice to have' :). Next steps would include to tackle a Java9/10 build, unfortunately the iced-tea team, responsible for the Java7/8 builds, seems to be inactive.