(check-doc): Only perform the tests if HAVE_PYTHON is set. Use

	$(PYTHON) instead of python.  Print a warning if HAVE_PYTHON
	isn't set.

doc/Makefile.am

-# $Id: Makefile.am,v 1.54 2003/08/13 13:29:35 ceder Exp $
+# $Id: Makefile.am,v 1.55 2003/08/13 20:38:42 ceder Exp $
 # Copyright (C) 1998-1999, 2001-2002  Lysator Academic Computer Association.
 #
 # This file is part of the LysKOM server.
@@ -132,6 +132,7 @@ update-www: protocol-a.info protocol-a.html protocol-a/index.html \
 check: check-doc pdf dvi
 
 check-doc: Protocol-A.notab lyskomd.notab info
+if HAVE_PYTHON
 	## Create a list of all aux-items.
 	sed -n 's/[0-9][0-9]* : \([^ ]*\) (.*/\1/p' \
 		$(top_srcdir)/run-support/aux-items.conf \
@@ -147,11 +148,11 @@ check-doc: Protocol-A.notab lyskomd.notab info
 	> aux-items-extra-@.tmp
 
 	## Check for any overlap between the aux-item lists.
-	python $(srcdir)/filterlines.py aux-items-extra-@.tmp \
+	$(PYTHON) $(srcdir)/filterlines.py aux-items-extra-@.tmp \
 	< aux-items-@.tmp \
 	| diff -c aux-items-@.tmp -
 
-	python $(srcdir)/filterlines.py aux-items-@.tmp \
+	$(PYTHON) $(srcdir)/filterlines.py aux-items-@.tmp \
 	< aux-items-extra-@.tmp \
 	| diff -c aux-items-extra-@.tmp -
 
@@ -201,7 +202,7 @@ check-doc: Protocol-A.notab lyskomd.notab info
 	> miscs-@.tmp
 
 	## Create a list of all conf-type bits.
-	python $(srcdir)/tac.py < $(top_srcdir)/src/include/kom-types.h \
+	$(PYTHON) $(srcdir)/tac.py < $(top_srcdir)/src/include/kom-types.h \
 	| sed -e '/} Conf_type/,/typedef/!d' \
 	| sed -n -e 's/.*unsigned int[ 	]*\([^ 	:]*\)[ 	]*:.*/\1/p' \
 	| sed -e 's/_/-/g' \
@@ -254,7 +255,7 @@ check-doc: Protocol-A.notab lyskomd.notab info
 	> errorcodes-@.tmp
 
 	## Create a list of all privilege bits.
-	python $(srcdir)/tac.py < $(top_srcdir)/src/include/kom-types.h \
+	$(PYTHON) $(srcdir)/tac.py < $(top_srcdir)/src/include/kom-types.h \
 	| sed -n -e '/} Priv_bits;/,/typedef[ 	]struct/!d' \
 	         -e 's/_/-/g' \
 	         -e 's/.* int[ 	]\([-a-z0-9]*\)[ 	]*:.*/\1/p' \
@@ -294,7 +295,7 @@ check-doc: Protocol-A.notab lyskomd.notab info
 	| grep -v '@field{' \
 	| grep -v '@anchor{' \
 	| grep -v '@lt{' \
-	| python $(srcdir)/filterlines.py \
+	| $(PYTHON) $(srcdir)/filterlines.py \
 	    aux-items-@.tmp \
 	    aux-items-extra-@.tmp \
 	    requests-@.tmp \
@@ -313,7 +314,13 @@ check-doc: Protocol-A.notab lyskomd.notab info
 
 	## Check @rarg{} and @aarg{} constructs.  They are only allowed
 	## to refer to named arguments of the call they are documenting.
-	python $(srcdir)/checkargs.py $(srcdir)/Protocol-A.texi
+	$(PYTHON) $(srcdir)/checkargs.py $(srcdir)/Protocol-A.texi
+else
+	@echo >&2
+	@echo WARNING: no python interpreter was found by configure, so >&2
+	@echo most documentation tests could not be run. >&2
+	@echo >&2
+endif
 
 # The targets below are for the benefit of the Xenofarm automated 
 # builds.  They provide information for the build summary.  See