[OpenJDK 2D-Dev] RFR(XXS): 8057934: Upgrade to LittleCMS 2.6 breaks AIX build

[Volker Simonis]

Hi,

I've updated my webrev to reflect the fix which has now been pushed to
LittleCMS mainline. It renames SNONE to SUNDEFINED :-
https://github.com/mm2/Little-CMS/commit/5bc4f52ff6b2090863d824827a871cd6274e36e4

http://cr.openjdk.java.net/~simonis/webrevs/8057934.v1/

Pease review.

Thank you and best regards,
Volker

PS: and I've verified that SUNDEFINED isn't defined on AIX...


On Tue, Sep 9, 2014 at 3:51 PM, Volker Simonis <volker.simonis at gmail.com> wrote:
> Hi,
>
> could you please review the following tiny fix for an AIX build
> problem intruduced by "8056122: Upgrade JDK to LittleCMS 2.6":
>
> http://cr.openjdk.java.net/~simonis/webrevs/8057934/
> https://bugs.openjdk.java.net/browse/JDK-8057934
>
> The problem is that the new version of LittleCMS now includes
> "pthread.h" in "lcms2_internal.h". Unfortunalty on AIX, "pthread.h" in
> turn includes "sys/proc.h" which uncoditionally defines a preprocessor
> constant "SNONE".
>
> In "cmscgats.c" this preprocessor constant "SNONE" collides with the
> enum value "SNONE" from the SYMBOL enumaration.
>
> The only solution I see is to rename "SNONE" in "cmscgats.c". I
> renamed it to "SVOID" but would be happy with any other name.
> Fortunately "SNONE" is only used locally in the file "cmscgats.c", so
> renaming it won't have any impact on other files.
>
> Once this bug is fixed I'll report the problem upstream to LittleCMS
> and try to get the fix in there.
>
> Finally, there's on last point I wan to bring up. I realized that
> "8056122: Upgrade JDK to LittleCMS 2.6" went from jdk9-client right
> into 8u-dev. That's why we caught this error only in 8u-dev and not
> already in jdk9-dev which we build on a daily basis on all our porting
> platforms. Is my assumption that changes have to through jdk9-dev
> before they get back ported wrong or has this been an exeption?
>
> Thank you and best regards,
> Volker