[Xen-changelog] [xen-unstable] docs, build: Tolerate missing pod2text

[Xen patchbot-unstable <patchbot@xxxxxxx>]

# HG changeset patch
# User Ian Jackson <ian.jackson@xxxxxxxxxxxxx>
# Date 1349801999 -3600
# Node ID f92152f52a853ccf5e9ab2cd81a4fc33a61f444a
# Parent  af59cce8d1fd2a592006e188c3e3b42f5bd56fd0
docs, build: Tolerate missing pod2text

We gate the whole of the "txt" target on pod2text.  I think this is
better than gating only the pod-generated outputs; it avoids a partial
output tree.

Signed-off-by: Ian Jackson <ian.jackson@xxxxxxxxxxxxx>
Acked-by: Ian Campbell <ian.campbell@xxxxxxxxxx>
Committed-by: Ian Campbell <ian.campbell@xxxxxxxxxx>
---


diff -r af59cce8d1fd -r f92152f52a85 docs/Makefile
--- a/docs/Makefile     Tue Oct 09 17:59:58 2012 +0100
+++ b/docs/Makefile     Tue Oct 09 17:59:59 2012 +0100
@@ -38,7 +38,10 @@ dev-docs: python-dev-docs
 html: $(DOC_HTML) html/index.html
 
 .PHONY: txt
-txt: $(DOC_TXT)
+txt:
+       @if which $(POD2TEXT) 1>/dev/null 2>/dev/null; then \
+       $(MAKE) $(DOC_TXT); else              \
+       echo "pod2text not installed; skipping text outputs."; fi
 
 .PHONY: figs
 figs:

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