RFR: JDK-8271142: package help is not displayed for missing X11/extensions/Xrandr.h

[Christoph Langer]

On Thu, 22 Jul 2021 13:42:09 GMT, Matthias Baesken <mbaesken at openjdk.org> wrote:

> Please review the following change.
> On SUSE Linux 15 configure was running into this error, because of a missing X11 header :
> 
> checking for X11/extensions/Xrandr.h... no
> configure: error: Could not find all X11 headers (shape.h Xrender.h Xrandr.h XTest.h Intrinsic.h).
> 
> I wondered about the missing package help output, we should display some hint what packages are missing.
> In help.m4,  PKGHANDLER was detected as /usr/bin/zypper .
> However only the exact string zypper is checked, this should be relaxed.
> Afterwards, the package - help  was working nicely :
> 
> checking for X11/extensions/Xrandr.h... no
> configure: error: Could not find all X11 headers (shape.h Xrender.h Xrandr.h XTest.h Intrinsic.h).
> You might be able to fix this by running 'sudo zypper install libX11-devel libXext-devel libXrender-devel libXrandr-devel libXtst-devel libXt-devel libXi-devel'.

Makes sense to me.

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Marked as reviewed by clanger (Reviewer).

PR: https://git.openjdk.java.net/jdk/pull/4873