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https://issues.apache.org/jira/browse/HADOOP-8921?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=13476877#comment-13476877
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Gopal V commented on HADOOP-8921:
---------------------------------
I've personally wasted over an hour to figure out that option has to be
explicitly disabled before it skips running autoconf/automake (in
create-configure part).
The older approach was bad for someone who did a git checkout and ran a build
without paying attention to the docs about native library compatibility.
I'd say the optimizations (i.e non-core features) can be skipped over for a
clean build on platforms where the code won't compile / isn't supported. Every
single attempt to build on a Mac would result in a failed compilation, until
someone discovers the -Dcompile.native option.
Clean builds on "ant compile" should be encouraged (on any platform) without
RTFMing for a -D option.
Of course on platforms where the native code is indeed supported, it would
error out if say, JNI headers can't be found.
> ant build.xml in branch-1 ignores -Dcompile.native
> --------------------------------------------------
>
> Key: HADOOP-8921
> URL: https://issues.apache.org/jira/browse/HADOOP-8921
> Project: Hadoop Common
> Issue Type: Bug
> Components: build
> Affects Versions: 1.2.0
> Environment: Mac OS X 10.7.4
> Reporter: Gopal V
> Priority: Trivial
> Labels: ant, autoconf, patch
> Attachments: HADOOP-8921.4.patch
>
>
> ant -Dcompile.native=false still runs autoconf and libtoolize
> According to ant 1.8 manual, any <target if> conditions are checked only
> after the dependencies are run through. The current if condition in code
> fails to prevent the autoconf/libtool components from running.
> Fixing it by moving the if condition up into the "compile-native" target and
> changing it to a param substitution instead of being evaluated as a condition.
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