gcc vs. clang builds of 7.8.3 on OS X

[Bob Ippolito]

On Sun, Jul 13, 2014 at 12:13 AM, Mark Lentczner <mark.lentczner at gmail.com>
wrote:

> Found the culprit!!!!!!!
>
> XCodeVersion=`xcodebuild -version | grep Xcode | sed "s/Xcode //"`
>
>
> This line in configure doesn't work on a system that just the Xcode
> command line tools installed! It also won't work on an OS X system that has
> some other tool chain (say, via brew) installed. On such systems, itsets
> XCodeVersion to "", which in tur
>
> The follow on code sets XCodeVersion1 and XCodeVersion2 to "0", and then
> this code runs, causing the problem:
>
> SplitObjsBroken=NO
> if test "$TargetOS_CPP" = "darwin"
> then
>     # Split objects is broken (#4013) with XCode < 3.2
>     if test "$XCodeVersion1" -lt 3
>     then
>         SplitObjsBroken=YES
>     else
>         if test "$XCodeVersion1" -eq 3
>         then
>             if test "$XCodeVersion2" -lt 2
>             then
>                 SplitObjsBroken=YES
>             fi
>         fi
>     fi
> fi
>
>
> ​Alas, it doesn't look like SplitObjsBroken has the logic to allow it to
> be overriden on the ./configure invocation (anyone know for sure? my
> autoconf is very rusty....)
>
> Too late here for me to think of a fix....
>

Would it be possible to simply stop supporting Xcode builds that old? #4013
is three years old and Xcode < 3.2 only applies to Mac OS X 10.5 and
earlier.
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