Re: Use "$(MKDIR_P) sys", not race-prone "test -d sys || mkdir sys".

[James Youngman]

I've just synced my CVS version of gnulib and it includes that
ChangeLog entry.  I am using  Autoconf version 2.61 and Automake
version 1.9.6.

My generated aclocal.m4 file wants to substiture mkdir_p (courtesy of
AM_PROG_MKDIR_P) but doesn't define AC_PROG_MKDIR_P.   Nevertheless my
gnulib-common.m4 file is indeed at serial 2 and the gl_INIT in
gnulib/m4/gnulib-comp.m4 does indeed invoke AC_PROG_MKDIR_P.

However, I think the problem is that on this system, the Makefile.in
file is not actually using @MKDIR_P@ :-



(this gnulib directory here is generated by gnulib-tool from the CVS head)

findutils$ find gnulib -exec grep MKDIR_P /dev/null {} \;
gnulib/lib/Makefile.in: $(MKDIR_P) sys
gnulib/lib/Makefile.am: $(MKDIR_P) sys
gnulib/m4/gnulib-common.m4:# AC_PROG_MKDIR_P
gnulib/m4/gnulib-common.m4:# is a backport of autoconf-2.60's AC_PROG_MKDIR_P.
gnulib/m4/gnulib-common.m4:m4_ifdef([AC_PROG_MKDIR_P], [], [
gnulib/m4/gnulib-common.m4:  AC_DEFUN([AC_PROG_MKDIR_P],
gnulib/m4/gnulib-common.m4:    [AC_REQUIRE([AM_PROG_MKDIR_P])dnl
defined by automake
gnulib/m4/gnulib-common.m4:     MKDIR_P='$(mkdir_p)'
gnulib/m4/gnulib-common.m4:     AC_SUBST([MKDIR_P])])])
gnulib/m4/intl.m4:  AC_REQUIRE([AM_PROG_MKDIR_P])dnl defined by automake
gnulib/m4/po.m4:  AC_REQUIRE([AM_PROG_MKDIR_P])dnl defined by automake
gnulib/m4/gnulib-comp.m4:  AC_PROG_MKDIR_P

Unfortunately, I'm too tired right now to diagnose further, it's 00:44.

Thanks,
James.