"Source directory already configured" error when running configure.

[Gedare Bloom]

I recommend that you rm -rf your build tree. This is the sanest thing
to do when you make modifications to the auto* build system inputs.

On Wed, Mar 16, 2016 at 12:16 PM, Travis Wheatley
<travis.wheatley at emergentspace.com> wrote:
> I have changed some compilation parameters in a bsp .cfg file in the
> make/custom directory. Now I am attempting to run configure to propagate
> those changes through the files used to build test examples. However, when I
> run configure I am getting an error indication that there is a source
> directory already configured. The error message suggests that I should run
> "make distclean" from the offending location. However, I have not been
> successful in figuring out where that location might be.
>
> I have, of course, manually traversed my build tree and run "make distclean"
> in pretty much every directory along the way without success. Hoping y'all
> might be able to clue me in as to the offending directory. Following is the
> last stanza of the failed configure operation.
>
>
> --- Begin Included Text ---
>
> configure: configuring in powerpc-rtems4.12/c
> configure: running /bin/sh '../../../rtems-git/c/configure'
> '--prefix=/home/firefly/development/rtems/bsps/4.12'
> '--host=powerpc-rtems4.12' '--build=x86_64-pc-linux-gnu'
> '--target=powerpc-rtems4.12'  '--enable-tests=samples' '--enable-networking'
> '--enable-posix' '--with-target-subdir=powerpc-rtems4.12'
> '--exec-prefix=/home/firefly/development/rtems/bsps/4.12/powerpc-rtems4.12'
> '--includedir=/home/firefly/development/rtems/bsps/4.12/powerpc-rtems4.12/include'
> '--cache-file=/dev/null' '--srcdir=../../../rtems-git/c'
> checking for gmake... no
> checking for make... make
> checking for RTEMS Version... 4.11.99.0
> checking build system type... x86_64-pc-linux-gnu
> checking host system type... powerpc-unknown-rtems4.12
> checking target system type... powerpc-unknown-rtems4.12
> checking rtems target cpu... powerpc
> checking for a BSD-compatible install... /usr/bin/install -c
> checking whether build environment is sane... yes
> checking for powerpc-rtems4.12-strip... powerpc-rtems4.12-strip
> checking for a thread-safe mkdir -p... /bin/mkdir -p
> checking for gawk... gawk
> checking whether make sets $(MAKE)... yes
> configure: error: source directory already configured; run "make distclean"
> there first
> configure: error: /bin/sh '../../../rtems-git/c/configure' failed for c
>
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