Fix dbtoepub output file name

In previous releases, the input file of dbtoepub was postgres.xml, and
dbtoepub knows to derive the output file name postgres.epub from that
automatically.  But now the intput file is postgres.sgml (since
postgres.sgml is itself an XML file and we no longer need the
intermediate postgres.xml file), but dbtoepub doesn't know how to deal
with the .sgml suffix, so the automatically derived output file name
becomes postgres.sgml.epub.  Fix by adding an explicit -o option.

diff --git a/doc/src/sgml/Makefile b/doc/src/sgml/Makefile
index 74aac01c395d835c539f5f1ae78d4ebe117a22ab..901c5e590eeacdb07e2cfff9a05eb73920dad909 100644 (file)
--- a/doc/src/sgml/Makefile
+++ b/doc/src/sgml/Makefile
@@ -177,7 +177,7 @@ postgres.pdf:
 epub: postgres.epub
 postgres.epub: postgres.sgml $(ALLSGML)
    $(XMLLINT) --noout --valid $<
-   $(DBTOEPUB) $<
+   $(DBTOEPUB) -o $@ $<
 
 
 ##