On 05/05/2016 09:31, Pierre Labastie wrote:
> On 05/05/2016 03:48, DJ Lucas wrote:
>>
>>
>> On 05/04/2016 04:05 PM, Pierre Labastie wrote:
>>
>>>
>>> I confirm that GCC-6 is not easy to work with: OpenJDK would not build with
>>> it. I do not have CLANG and have no motivation to build it. Furthermore, for
>>> OpenJDK, the variables CC and CXX are not honoured! What I have done (as
>>> root):
>>>
>>> mv /usr/bin/gcc{,.orig}
>>> cat >/usr/bin/gcc << EOF
>>> #!/bin/bash
>>> gcc -std=c99 "\$@"
>>> EOF
>>> mv /usr/bin/g++{,.orig}
>>> cat >/usr/bin/g++ << EOF
>>> #!/bin/bash
>>> gcc -std=c99 "\$@"
>>> EOF
>>>
>>> But that's not enough. The compilation goes to completion, but all the
>>> compiled executables segfault
>>>
>>
>> http://hg.openjdk.java.net/jdk9/dev/rev/9d77f922d694
>>
>> That's for jdk9, but should backport easily enough. Looks like you need
>> -std=gnu++98, -fno-delete-null-pointer-checks, and -fno-lifetime-dse to make
>> it play nicely...can probably force it to work at configure time if you don't
>> want to redo auto* files, but that's the correct way (assuming that it
>> actually works).
>>
>> --DJ
>>
>>
> Thanks, will give it a try. Why do they have those big chunks of empty lines?
>
The patch does not work out of the box for jdk 8, since some .m4 files do not
exist (for example flags.m4).
I'll see if I can find a way to modify the existing files along the lines of
the patch.
Pierre
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