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https://jira.codehaus.org/browse/MNG-5658?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=358638#comment-358638
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Jonathan Sailor commented on MNG-5658:
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Well, `$(?)` is actually portable-- see
http://pubs.opengroup.org/onlinepubs/9699919799/utilities/V3_chap02.html#tag_18_06_03
in POSIX. It's possible that it was standardized in a sufficiently recent
version of POSIX that the /bin/sh in Solaris 10 doesn't support it.
The `[[ ? ]]` test in the preceding line is, however, non-standard. On a recent
OpenIndiana build, /bin/sh is ksh93, and `man sh` does indicate support for
`[[`, but I'd be far less surprised if it was added recently. My guess it is
was some odd interaction between `[[` and `$(` which was causing a parse error.
I submitted patches in MNG-5686 to change the /usr/libexec/java_home to use
backticks *and* one to remove the bashisms, so we should be good in either case
:)
> Syntax error in bin/mvn on Solaris SPARC
> ----------------------------------------
>
> Key: MNG-5658
> URL: https://jira.codehaus.org/browse/MNG-5658
> Project: Maven
> Issue Type: Bug
> Affects Versions: 3.2.2
> Environment: Solaris SPARC 10 with Oracle JDK 1.7.0_60
> Reporter: Frank Langelage
> Assignee: Jason van Zyl
> Fix For: 3.2.3
>
> Attachments: maven_bin_mvn.patch
>
>
> The latest addition to bin/mvn breaks mvn running on Solaris.
> Syntax error in line 86.
> The Bourne shell /bin/sh does not understand this syntax with the brackets.
> if [[ -z "$JAVA_HOME" && -x /usr/libexec/java_home ]] ; then
> #
> # Apple JDKs
> #
> export JAVA_HOME=$(/usr/libexec/java_home)
> fi
> ;;
> changing the line with the assignment to
> export JAVA_HOME=/usr/libexec/java_home
> like the lines before makes it running again.
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