Re: [PATCH] tools/perf: fix use of alternatives to find JDIR

[Jiri Olsa <jolsa@redhat.com>]

On Thu, Sep 06, 2018 at 06:18:12PM -0400, Jarod Wilson wrote:
> When a build is run from something like a cron job, the user's $PATH is
> rather minimal, of note, not including /usr/sbin in my own case. Because
> of that, an automated rpm package build ultimately fails to find
> libperf-jvmti.so, because somewhere within the build, this happens...
> 
> /bin/sh: alternatives: command not found
> /bin/sh: alternatives: command not found
> Makefile.config:849: No openjdk development package found, please install
> JDK package, e.g. openjdk-8-jdk, java-1.8.0-openjdk-devel
> 
> ...and while the build continues, libperf-jvmti.so isn't built, and things
> fall down when rpm tries to find all the %files specified. Exact same
> system builds everything just fine when the job is launched from a login
> shell instead of a cron job, since alternatives is in $PATH, so openjdk is
> actually found.
> 
> The test required to get into this section of code actually specifies the
> full path, as does a block just above it, so let's do that here too.
> 
> CC: Peter Zijlstra <peterz@infradead.org>
> CC: Ingo Molnar <mingo@redhat.com>
> CC: Arnaldo Carvalho de Melo <acme@kernel.org>
> CC: Alexander Shishkin <alexander.shishkin@linux.intel.com>
> CC: Jiri Olsa <jolsa@redhat.com>
> CC: Namhyung Kim <namhyung@kernel.org>
> Signed-off-by: Jarod Wilson <jarod@redhat.com>

Acked-by: Jiri Olsa <jolsa@redhat.com>

thanks,
jirka