Gnu mkdir version 3.16 considered harmful

[David Chase]

It led to an ugly failure (see below).
I took it off my path, cleaned, configured, and the build (so far) went better.
I checked the version it was picking up, and it was 3.16.
So configure might want to check for this.
(Why is this crap on my path?  I no longer remember, it has been there for almost ten years, and whether pkg/gnu appears on any given machine is hit-or-miss.)

ugly failure:

make381[1]: Entering directory `/export/drchase/jdk8tl-full/langtools/makefiles'
/pkg/gnu/bin/mkdir -p /export/drchase/jdk8tl-full/build/solaris-sparcv9-normal-server-release/langtools/classes/com/sun/tools/doclets/internal/toolkit/resources
/pkg/gnu/bin/mkdir -p /export/drchase/jdk8tl-full/build/solaris-sparcv9-normal-server-release/langtools/classes/com/sun/tools/doclets/internal/toolkit/resources
/pkg/gnu/bin/mkdir -p /export/drchase/jdk8tl-full/build/solaris-sparcv9-normal-server-release/langtools/classes/com/sun/tools/doclets/internal/toolkit/resources
/pkg/gnu/bin/mkdir -p /export/drchase/jdk8tl-full/build/solaris-sparcv9-normal-server-release/langtools/classes/com/sun/tools/doclets/internal/toolkit/resources
/pkg/gnu/bin/mkdir -p /export/drchase/jdk8tl-full/build/solaris-sparcv9-normal-server-release/langtools/classes/com/sun/tools/doclets/internal/toolkit/resources
/pkg/gnu/bin/mkdir -p /export/drchase/jdk8tl-full/build/solaris-sparcv9-normal-server-release/langtools/classes/com/sun/tools/doclets/internal/toolkit/resources
/pkg/gnu/bin/mkdir -p /export/drchase/jdk8tl-full/build/solaris-sparcv9-normal-server-release/langtools/classes/com/sun/tools/doclets/internal/toolkit/resources
/pkg/gnu/bin/mkdir: cannot create directory `/export/drchase/jdk8tl-full/build/solaris-sparcv9-normal-server-release/langtools/classes/com/sun/tools'/pkg/gnu/bin/mkdir: cannot create directory `/export/drchase/jdk8tl-full/build/solaris-sparcv9-normal-server-release/langtools/classes/com/sun/tools/doclets': File exists
/pkg/gnu/bin/mkdir: cannot create directory `/export/drchase/jdk8tl-full/build/solaris-sparcv9-normal-server-release/langtools/classes/com/sun/tools/doclets/internal': File exists
make381[1]: *** [/export/drchase/jdk8tl-full/build/solaris-sparcv9-normal-server-release/langtools/classes/com/sun/tools/doclets/internal/toolkit/resources/activetitlebar_end.gif] Error 1
: File exists
make381[1]: *** Waiting for unfinished jobs....
make381[1]: *** [/export/drchase/jdk8tl-full/build/solaris-sparcv9-normal-server-release/langtools/classes/com/sun/tools/doclets/internal/toolkit/resources/doclet.xml] Error 1
/pkg/gnu/bin/mkdir: cannot create directory `/export/drchase/jdk8tl-full/build/solaris-sparcv9-normal-server-release/langtools/classes/com/sun/tools/doclets/internal/toolkit/resources'make381[1]: *** [/export/drchase/jdk8tl-full/build/solaris-sparcv9-normal-server-release/langtools/classes/com/sun/tools/doclets/internal/toolkit/resources/script.js] Error 1
: File exists
/pkg/gnu/bin/cp /export/drchase/jdk8tl-full/langtools/src/share/classes/com/sun/tools/doclets/internal/toolkit/resources/background.gif /export/drchase/jdk8tl-full/build/solaris-sparcv9-normal-server-release/langtools/classes/com/sun/tools/doclets/internal/toolkit/resources/background.gif
/pkg/gnu/bin/cp /export/drchase/jdk8tl-full/langtools/src/share/classes/com/sun/tools/doclets/internal/toolkit/resources/tab.gif /export/drchase/jdk8tl-full/build/solaris-sparcv9-normal-server-release/langtools/classes/com/sun/tools/doclets/internal/toolkit/resources/tab.gif
make381[1]: *** [/export/drchase/jdk8tl-full/build/solaris-sparcv9-normal-server-release/langtools/classes/com/sun/tools/doclets/internal/toolkit/resources/stylesheet.css] Error 1
/pkg/gnu/bin/chmod -f ug+w /export/drchase/jdk8tl-full/build/solaris-sparcv9-normal-server-release/langtools/classes/com/sun/tools/doclets/internal/toolkit/resources/tab.gif
/pkg/gnu/bin/mkdir: cannot create directory `/export/drchase/jdk8tl-full/build/solaris-sparcv9-normal-server-release/langtools/classes/com/sun/tools': File exists
make381[1]: *** [/export/drchase/jdk8tl-full/build/solaris-sparcv9-normal-server-release/langtools/classes/com/sun/tools/doclets/internal/toolkit/resources/activetitlebar.gif] Error 1
/pkg/gnu/bin/chmod -f ug+w /export/drchase/jdk8tl-full/build/solaris-sparcv9-normal-server-release/langtools/classes/com/sun/tools/doclets/internal/toolkit/resources/background.gif
make381[1]: Leaving directory `/export/drchase/jdk8tl-full/langtools/makefiles'
make381: *** [langtools-only] Error 2