Eu modifiquei um arquivo fonte no open-jdk-6 e agora quero reconstruí-lo. Em todos os guias, afirma-se que o processo de construção é feito via make . No entanto, não vejo nenhum Makefile ou alvo.
$ pwd
/usr/lib/jvm/java-6-openjdk-amd64
$ ls
ASSEMBLY_EXCEPTION com docs java jre lib org src.zip sunw
bin demo include javax launcher man sample sun THIRD_PARTY_README
Estou usando o Ubuntu-AMD64
UPDATE
Eu instalei as fontes de acordo com o comando dpkg
$ dpkg -l | grep jdk
ii openjdk-6-dbg 6b30-1.13.1-1ubuntu2~0.12.04.1 Java runtime based on OpenJDK (debugging symbols)
ii openjdk-6-demo 6b30-1.13.1-1ubuntu2~0.12.04.1 Java runtime based on OpenJDK (demos and examples)
ii openjdk-6-jdk 6b30-1.13.1-1ubuntu2~0.12.04.1 OpenJDK Development Kit (JDK)
ii openjdk-6-jre 6b30-1.13.1-1ubuntu2~0.12.04.1 OpenJDK Java runtime, using Hotspot JIT
ii openjdk-6-jre-headless 6b30-1.13.1-1ubuntu2~0.12.04.1 OpenJDK Java runtime, using Hotspot JIT (headless)
ii openjdk-6-jre-lib 6b30-1.13.1-1ubuntu2~0.12.04.1 OpenJDK Java runtime (architecture independent libraries)
ii openjdk-6-source 6b30-1.13.1-1ubuntu2~0.12.04.1 OpenJDK Development Kit (JDK) source files