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List:       openjdk-build-dev
Subject:    Re: Building openjdk 8u on OS X 10.11 fails
From:       Alex Wang <aw1621107 () gmail ! com>
Date:       2015-07-17 4:56:36
Message-ID: 861FA87D-388F-45B8-837E-F2C86D502446 () gmail ! com
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Edit for formatting. Forgot that soft wraps were a thing. My apologies.

I'm not really sure if this is something for the jdk developers or an upstream
issue, since the error doesn't seem to be strictly under idk control (the error
looks to me to be something g++ does); I just thought to check in case there's
an easy solution (and I'm not really sure if reporting a problem for Xcode 4
would really accomplish anything). If I'm in the wrong place please let me know.

Running OS X 10.11, JAVA_HOME is set to a 1.7 install, xcode-select is pointing
at the right application, and I *think* the Xcode 4 command line tools were
installed. Ran xcode-select —install after switching, and it prompted for an
install, at least.

./configure —with-xcode-path=<path> fails with this in config.log:

configure:28891: checking for stdio.h
configure:28891: result: yes
configure:28919: checking size of int *
configure:28924: /usr/bin/g++ -o conftest    conftest.cpp  >&5
couldn't understand kern.osversion `15.0.0'
ld: library not found for -lgcc_s.10.4
collect2: ld returned 1 exit status
configure:28924: $? = 1
configure: program exited with status 1
configure: failed program was:
| /* confdefs.h */
<snip>
configure:28938: result: 0
configure:28960: The tested number of bits in the target (0) differs from the
number of bits expected to be found in the target (64).
configure:28962: I'll retry after setting the platforms compiler target bits
flag to -m64
configure:28993: checking size of int *
configure:28998: /usr/bin/g++ -o conftest  -m64   -m64 conftest.cpp  >&5
couldn't understand kern.osversion `15.0.0'
ld: library not found for -lgcc_s.10.4
collect2: ld returned 1 exit status
configure:28998: $? = 1
configure: program exited with status 1
configure: failed program was:
| /* confdefs.h */
<snip>
configure:29012: result: 0
configure:29026: error: The tested number of bits in the target (0) differs from
the number of bits expected to be found in the target (64)

I looked around for a solution for the missing library, nothing I found really
helped. One suggestion was to symlink it to the OS-provided one (l
Unfortunately, 10.11's new rootless feature means that I can't write to that
folder, and I don't know if disabling that feature just for a build is the best
idea. Another was to change the library in the build scripts. I took a look
around, but the closest thing I could find in the config scripts were -lgcc
flags, so I figured something else was the cause.

I also tried messing with symlinking bits and pieces of Xcode 7's toolchain into
Xcode 4 to try and replace the offending binary, but nothing seemed to change.
Using Xcode 4's gcc sometimes worked, and sometimes produced the same error. I'm
not really sure what about the programs I threw at it caused it to fail or not,
but at least it seemed consistent for any particular program.

If I can provide more info that would be helpful, I'll be happy to do so.

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