[PATCH] gnu-web-doc-update: exit immediately when CVSROOT environment is missing

[Sami Kerola]

* build-aux/gnu-web-doc-update: Check the environment variable CVSROOT early
on to avoid needing to build a project before getting "cvs add: No CVSROOT
specified!  Please use the `-d' option" error.
---
 build-aux/gnu-web-doc-update | 3 +++
 1 file changed, 3 insertions(+)

diff --git a/build-aux/gnu-web-doc-update b/build-aux/gnu-web-doc-update
index c8fc7e5..b7bc254 100755
--- a/build-aux/gnu-web-doc-update
+++ b/build-aux/gnu-web-doc-update
@@ -134,6 +134,9 @@ done
 test $# = 0 \
   || die "too many arguments"
 
+test "x$CVSROOT" = "x" \
+  && die "environment variable \$CVSROOT not set"
+
 prev=.prev-version
 version=$(cat $prev) || die "no $prev file?"
 pkg=$(sed -n 's/^PACKAGE = \(.*\)/\1/p' $builddir/Makefile) \
-- 
2.6.2