Don't build docs if 'dot' is not found Signed-off-by: Paulo R. Zanoni <pzanoni@mandri...

diff --git a/acinclude.m4 b/acinclude.m4
index bc98150..ad24bc2 100644 (file)
--- a/acinclude.m4
+++ b/acinclude.m4
@@ -102,6 +102,11 @@ AC_ARG_WITH(
        AC_MSG_WARN(
           [Warning: no doxygen detected. Documentation will not be built])
     fi])
+    AC_PATH_PROG(DOT, dot, no)
+    if test "$DOT" = "no"; then
+        AC_MSG_WARN([Warning: no dot detected. Documentation will not be built])
+       BUILD_DOCS="no"
+    fi
 fi
 AC_MSG_CHECKING([whether documentation is built])
 AC_MSG_RESULT([${BUILD_DOCS}])