# HG changeset patch
# User Mike Miller <address@hidden>
# Date 1335313662 14400
# Node ID 4dc85c4f151b35e630bd1ad65896fcbb32e7b0e8
# Parent  f579a94aacaa2e5e59b3b661ea8c7df3e243d7dd
Disable building documentation if gnuplot not found

* configure.ac: Disable building documentation if gnuplot not found

diff --git a/configure.ac b/configure.ac
--- a/configure.ac
+++ b/configure.ac
@@ -196,7 +196,6 @@
      AC_MSG_WARN([$warn_docs])
    fi], [])
 AC_SUBST(DOCDIR)
-AM_CONDITIONAL([AMCOND_BUILD_DOCS], [test -n "$DOCDIR"])
 
 ### If possible, use a 64-bit integer type for array dimensions and indexing.
 
@@ -1901,6 +1900,16 @@
 OCTAVE_PROG_TEXI2DVI
 OCTAVE_PROG_TEXI2PDF
 
+### Need to disable building documentation if gnuplot was not found,
+### unless it was already disabled previously.
+
+if test -n "$DOCDIR" && test -n "$warn_gnuplot"; then
+  DOCDIR=
+  warn_docs="building documentation disabled because gnuplot was not found; make dist will fail"
+  AC_MSG_WARN([$warn_docs])
+fi
+AM_CONDITIONAL([AMCOND_BUILD_DOCS], [test -n "$DOCDIR"])
+
 ### Even though we include config.h, we need to have the preprocessor
 ### defines available in a variable for the testif feature of the
 ### scripts/testfun/test.m function.  Use UGLY_DEFS to hold all the -D