## Helper script for those building Emacs from bzr without autoconf etc.
## This installs some pre-generated versions of the automatically
## generated files. It is highly recommended to install the necessary
-## tools instead of using this. Note that if eg configure.in
+## tools instead of using this. Note that if eg configure.ac
## is updated, the next time you run make it will attempt to
## regenerate configure and will fail if you do not have the required
## tools. You will have to run this script again.
-test -d autogen && cd autogen
+test ! -d autogen || cd autogen || exit
if test ! -e config.in; then
echo "Cannot find autogen/ directory."
fi
## Order implied by top-level Makefile's rules, for time-stamps.
-cp compile config.guess config.sub depcomp install-sh missing ../build-aux
-cp aclocal.m4 ../
-cp configure ../
-touch ../src/stamp-h.in
-cp config.in ../src/
-cp Makefile.in ../lib/
+cp -f compile config.guess config.sub depcomp install-sh missing \
+ ../build-aux &&
+cp aclocal.m4 ../ &&
+cp configure ../ &&
+touch ../src/stamp-h.in &&
+cp config.in ../src/ &&
+cp Makefile.in ../lib/ &&
echo "You can now run configure"