./configure script checks now for the following programs:
* CC - using AC_PROG_CC
* AR - using AC_CHECK_TOOL among ar
* TAR - among gtar, tar
Checks not implemented:
* INSTALL - needs install-sh or install.sh in sources
* RPMBUILD - not known alternatives for rpmbuild
* PYTHON - no PYTHON variable in Makefile,
has to set NO_PYTHON if not present
Signed-off-by: Jakub Narebski <jnareb@gmail.com> Signed-off-by: Junio C Hamano <junkio@cox.net>