Bruno Haible <bruno@clisp.org> writes:

> Alpine Linux does not have the 'join' program.
> The GCS [1] don't list it among the essential utilities.

I ran into that problem during ./bootstrap -- it seems gnulib-tool
relies on the 'join' tool as well:

./bootstrap: gnulib/gnulib-tool    --no-changelog   --aux-dir=build-aux   --doc-base=doc   --lib=libgnu   --m4-base=m4/   --source-base=gl/   --tests-base=gl/tests   --local-dir=gl      --libtool --import ...
gnulib/gnulib-tool: line 1: join: not found

The ./bootstrap script completes without error exit, but failed to setup
the build properly.

Do we want to support ./boostrap on systems without 'join'?

If not, I suggest the patch below.

/Simon

diff --git a/build-aux/bootstrap.conf b/build-aux/bootstrap.conf
index 9e21d9f45..0e8cbbe4a 100644
--- a/build-aux/bootstrap.conf
+++ b/build-aux/bootstrap.conf
@@ -64,4 +64,5 @@ autoconf   2.59
 automake   1.9.6
 git        1.5.5
 tar        -
+join       -
 "