view tests/test-mq-merge.out @ 8311:e0eb03bfa5af

manpage build: fail early when xmlto is not available

When we try to build manpages with xmlto and sed, but xmlto is
missing fail at the xmlto stage.  Otherwise, one may run `cd doc;
make' and miss the warnings like:

  xmlto: not found
  sed: hg.1: No such file or directory

and end up with empty files installed as manpages.

adding a
adding b
copy .hg/patches to .hg/patches.1
1 files updated, 0 files merged, 0 files removed, 0 files unresolved
M b
created new head
a
b
merging with queue at: .hg/patches.1
applying rm_a
now at: rm_a
b
patch queue now empty

% init t2
adding a
1 files updated, 0 files merged, 0 files removed, 0 files unresolved
% create the reference queue
1 files updated, 0 files merged, 0 files removed, 0 files unresolved
% merge
merging with queue at refqueue
(working directory not at tip)
applying patcha
now at: patcha