doc/Makefile.am: Create directory for pdf output

dblatex is passed the option `-o $(srcdir)/pdf`, but if this directory
does not exist, the PDF file is created with the name 'pdf' in
$(srcdir).  Make the directory so that the -o option treats the
specified name as an output directory instead of an output filename.

diff --git a/doc/Makefile.am b/doc/Makefile.am
index d805187fa3d058ae07e382d838f03caf869f5053..2bdb0619d50e44e66ece272387f14e9dc745ef65 100644 (file)
--- a/doc/Makefile.am
+++ b/doc/Makefile.am
@@ -77,6 +77,7 @@ uninstall_man:
        for each in `find $(srcdir)/man/ -name '*.3'`; do $(RM) $(DESTDIR)$(mandir)/man3/`basename $$each` ; done
 
 $(srcdir)/pdf/comedilib.pdf: $(XML)
+       $(mkdir_p) $(srcdir)/pdf
        $(DBLATEX) -o $(srcdir)/pdf -t pdf $(srcdir)/comedilib.xml
 
 funcref.xml: funcref mkref